The Core Value of MOFs in Sustainable Energy: Breaking the Energy Bottleneck of Separations, Low-Partial-Pressure CO₂ Capture, and a Humid, Recyclable Selection Framework (with Selection Navigation and Product Tables)

I. Preface | Why are MOFs repeatedly mentioned in “sustainable energy technologies”?

1.1 | Background: In the energy transition, the “hard bottlenecks” are often not power generation, but separation, storage/transport, and purification

On the path toward a low-carbon energy system, many critical links revolve around three questions:

• How to separate gases/molecules (e.g., separating CO₂ from flue gas, purifying H₂/CH₄ from mixed streams, enriching CO₂ from air);
• How to store and transport energy carriers safely and efficiently (hydrogen, methane, etc.);
• How to make conversion processes more energy-efficient with fewer byproducts (catalysis, membrane separation, adsorption/regeneration, etc.).

These problems are “hard” largely because:

• Separation processes themselves are highly energy-intensive. Thermal-driven industrial separations such as distillation are a major energy sink in chemical industry and energy systems, often estimated to account for roughly ~10–15% of global annual energy consumption. Therefore, more energy-efficient separation materials and processes are powerful levers for sustainable chemistry and energy systems.
• Retrofitting carbon capture to power plants often incurs significant energy/output penalties. A common way to express the magnitude is a ~15–25% relative reduction in net power output (or net efficiency), depending on the capture process, heat integration, and the baseline unit.

1.2 | A materials entry point: Why do we need “designable porous materials”?

If we translate the challenges above into materials language, the key question becomes:

1. Can we find a material that can “selectively grab” target molecules (CO₂, H₂, CH₄, etc.) at the molecular scale, and release them on demand with low energy cost?

• Traditional porous materials (e.g., zeolites, activated carbon, silica gel) are industrially very successful, but their pore architecture and chemical environments are often relatively fixed.
• In energy separations/storage, we often need much finer control: pore size, pore shape, polarity, specific binding sites, tolerance to water/impurities, and cyclic stability—this is where the value of MOFs becomes apparent.

1.3 | Definition: What is a metal–organic framework (MOF)?                                                                                                          

In I UPAC terminology, a metal–organic framework (metal–organic framework, MOF) can be defined as:

• A coordination network constructed from metal centers and organic ligands, with potential voids/channels.

A MOF can be understood as:

• Metal ions/metal clusters acting as nodes;
• Organic linkers acting as scaffolds;
• Nodes and linkers assembling via coordination bonds into a (typically) ordered crystalline framework. Inside the framework are accessible pores/voids that can host gases or small molecules.

Terminology note:

• In many papers, MOFs are also called porous coordination polymers (PCPs). Different communities may prefer different terms, but they largely overlap in the core concept: porous, designable coordination-network materials.

1.4 | What are MOFs’ “energy-relevant advantages”?

In sustainable energy contexts, MOFs are typically highlighted not merely because “they have very high surface area,” but because they combine three engineerable capabilities:

• Programmable pores: By changing the metal node/organic linker/functional groups, one can systematically tune pore size, polarity, and adsorption sites, turning “separation and storage” into a design problem.
• Sites can be introduced: For example, open metal sites, polar groups, or post-synthetic modification sites can be introduced to enhance affinity for CO₂/H₂ or enable selectivity.
• A broad application spectrum: Beyond gas storage and separations, MOFs and their composites/derivatives are widely explored for electrochemistry and energy conversion (catalysis, supports, derived porous carbons/metal oxides, etc.).

II. What problems do MOFs actually solve in sustainable energy?

2.1 Core framework table

Core problem (hurdle)	Why it is a key hurdle for energy applications	Key metrics	MOF design levers	Common misconceptions
1) Can it store enough? Capacity / volumetric efficiency	Storage/transport and capture are ultimately limited by volumetric capacity and working capacity. If throughput per unit volume is insufficient, one must scale equipment volume or increase packing to compensate—often making systems bulky, increasing capex, and reducing operating efficiency.	Working/deliverable capacity (the “usable net capacity” between charging and discharge conditions); volumetric working capacity (v/v, reflecting equipment size); when necessary, use pore volume/BET to explain structural causes, but do not treat them as final system metrics.	Pore volume and pore-size distribution, framework density, and shaping/packing density (pellet/monolith).	High BET ≠ good system performance: Powder crystal data do not automatically translate into volumetric efficiency achievable in devices.
2) Can it select correctly? Selectivity/affinity (especially at low partial pressure)	In flue gas/tail gas, CO₂ partial pressure is low and competitive adsorption with N₂/H₂O is significant. “It can adsorb” is not enough—the key is preferential CO₂ adsorption and being able to capture it already at low pressure.	Low-pressure initial uptake strength (Henry constant / initial slope); CO₂/N₂ (or CO₂/CH₄) selectivity (ideal selectivity or IAST / mixed-gas breakthrough validation); heat of adsorption Qst (to gauge affinity and regeneration cost).	Open metal sites (OMS); pore polarity/functional groups (including post-modification/amination, etc.); molecular sieving via pore size and aperture (size/diffusion differences).	Affinity is not always better—too strong can raise regeneration energy, and under humid/cyclic conditions it is more prone to performance decay or site occupation by competitors.
3) Can it last? Stability and low-energy regeneration	Energy scenarios usually demand long-term, multi-cycle operation (10²–10³ cycles or more). Humidity/impurities (SOₓ/NOₓ/hydrocarbons, etc.) and temperature fluctuations can cause site competition, structural degradation, or pore blocking. Meanwhile, the milder and lower-energy the regeneration, the higher the system value.	Cyclic stability (capacity/selectivity decay vs cycles); performance retention under humid/impurity conditions (dry vs wet, breakthrough/cycling data); regeneration conditions and cost (temperature, vacuum level/purge requirement, regeneration time—ideally tied to reversibility).	More stable metal nodes/bonding (improving water/thermal tolerance); hydrophobization / anti-water strategies (reducing water competition); anti-fouling and regenerable design; engineering shaping plus heat transfer/pressure-drop optimization (converting material performance into system performance).	“Strong adsorption” can be a trap—if regeneration is too costly or it fails quickly under humid conditions, it is hard to become a truly sustainable, scalable solution.

Note: 10²–10³ cycles are a minimum level of cycling evidence at the materials screening stage; engineering deployment usually requires longer-term lifetime validation under more complex conditions (humidity/impurities/thermal shock/shaping pressure drop, etc.).

III. Example: CO₂ capture/separation—how MOFs make the “three hurdles” concrete

Scenario setting: In typical coal-fired flue gas, CO₂ is often on the order of 12–15 mol%, with the remainder mainly N₂, plus water vapor and trace impurities. For gas-fired units, flue-gas CO₂ is even lower (about 3–4 mol%).

3.1 What exactly makes this difficult?

• In real flue gas with low partial pressure + water vapor/impurities, the challenge is to prefer CO₂, release it with low energy, and retain performance under cycling.

3.2 “Select correctly”: Low-partial-pressure selectivity is the first hurdle

• In flue gas, CO₂ partial pressure is not high. Therefore, the key is not “maximum uptake,” but CO₂ affinity in the low-pressure region and the ability to discriminate against N₂/H₂O.

A. How MOFs achieve “CO₂ preference”:

• Open metal sites (open metal sites): Unsaturated metal centers on pore surfaces can interact more strongly with CO₂, improving low-pressure uptake and selectivity.
• Tuning pore polarity/functional groups: Via linkers or post-synthetic modification, one can create an electric-field environment more favorable to CO₂ (CO₂ has a large quadrupole moment), enhancing Henry-region affinity.

Reminder: For flue-gas capture, “capturing at low partial pressure” is closer to the real difficulty than “storing a lot at high pressure.”

3.3 “Release it”: Too-strong affinity can drive up regeneration energy (the second hurdle)

One MOF advantage is capturing CO₂ “more strongly,” but engineering must simultaneously ask: What is the regeneration cost?

• Higher heat of adsorption / binding strength often implies harsher regeneration (higher temperature, deeper vacuum, larger purge), increasing system energy consumption.
• Literature commonly uses metrics such as zero-coverage heat of adsorption (Qst) to discuss the trade-off between “affinity strength” and “mild regeneration.”

Takeaway: “Stronger adsorption” is not an unconditional benefit; whether it can be regenerated cyclically at low energy determines whether it is truly sustainable.

3.4 “Stand up to it”: Water vapor is the real stress test for MOF flue-gas capture (the third hurdle)

Water vapor is ubiquitous in flue gas. Many “strong sites” used to boost CO₂ affinity—especially open metal sites—also strongly adsorb water, leading to:

• Sites being occupied by water (CO₂ loses the competition);
• Structural/sites degradation under long-term humid/thermal cycling;
• Capacity decay and more difficult regeneration.

For typical open-metal-site MOFs (e.g., Cu-BTC, Mg-MOF-74), water adsorption behavior and its impact on performance have been systematically studied.

3.5 One-table summary

Core question	Corresponding “minimum metrics/evidence”	Common MOF-side levers	Notes
Can it capture CO₂ at low partial pressure?	Low-pressure isotherm trend, Henry region, CO₂/N₂ selectivity (IAST)	Open metal sites; pore polarity/functional groups	“Don’t focus only on BET or maximum uptake—flue gas is about low partial pressure.”
After capture, can it release CO₂ with lower energy?	Regeneration conditions (T/vacuum/purge), adsorption heat strength (Qst)	Balanced design between “strong sites” and “mild regeneration”	“Stronger affinity is not always better—it may push energy cost higher.”
Will performance decay under humidity/cycling?	Cycling curves (capacity retention), adsorption/breakthrough under humidity	Stability enhancement / anti-humidity strategies (more robust nodes, hydrophobization, etc.)	“Dry-gas data ≠ flue-gas data. Water is a hard hurdle.”

IV | Two Most Common MOF Design Routes: “Capture at Low Partial Pressure” vs “Humid, Recyclable, Mild-Regeneration Usability”

4.1 Comparison Table of the Two Routes

Design route	Why it performs better at low partial pressure / in mixed gases	What it costs	Flue-gas conditions it fits better	Minimum evidence chain
Route A: Open metal sites (OMS) / coordinatively unsaturated sites (“strong sites capture CO₂”)	CO₂ has a pronounced quadrupole moment, and its O atoms can act as Lewis-basic sites that interact more strongly with Lewis-acidic open metal sites (OMS). This increases low-pressure affinity and selectivity. Typical systems such as the MOF-74 family are often used to demonstrate the effect of “open sites → higher CO₂ affinity.”	1) Water competition: OMS are also highly “interested” in H₂O; under humid conditions, water may occupy the sites, reducing capacity/selectivity and potentially affecting long-term stability. 2) Higher regeneration cost: stronger affinity often implies higher Qst, higher regeneration temperature and/or deeper vacuum requirements (system-dependent).	Systems that are drier or have controllable humidity, e.g., flue gas with sufficient pretreatment/drying or mixed-gas separations with inherently low water content. Also typically requires robust desulfurization/denitrification and particulate control (to avoid site poisoning).	- Dry vs humid comparison of CO₂ isotherms (low-pressure region) and selectivity (IAST or mixed-gas/breakthrough) - Humid cycling (capacity-retention curve) - Qst (only the rough magnitude “strong/weak” is needed) and regeneration conditions (T/vacuum/purge)
Route B: A “usability route” for milder regeneration / better humidity tolerance (representative levers: robust framework + cooperative adsorption via amine/polar sites)	Use a stable framework to withstand operating conditions (water/heat/chemical tolerance), then use designable pore sites to trigger cooperative behavior—becoming “suddenly very adsorptive” within the target partial-pressure window. Systems such as diamine-appended Mg₂(dobpdc) show step-shaped/phase-transition-like CO₂ adsorption, concentrating working capacity into the useful pressure range, and have demonstrated dynamic cycling in simulated air/flue-gas conditions.	1) More sensitive to acidic impurities: amine sites may be irreversibly affected by SOₓ, etc. (engineering typically requires deeper flue-gas cleanup). 2) More complex material/process: grafting/post-functionalization raises challenges in consistency and cost. 3) Regeneration still needs energy input, but the aim is to spend energy on the effective working window and reduce “ineffective adsorption.”	Routes closer to real humid flue gas, prioritizing long-term cycling and energy use—especially when the material must maintain working capacity/selectivity under humidity fluctuations. However, impurity control must be adequate (desulfurization/denitrification, particulate/acid mist control).	- Dynamic/cycling data (simulated flue gas: CO₂/N₂, preferably humid) and capacity retention - Regeneration conditions and energy-related metrics (TSA/vacuum/purge requirements) - Sensitivity statements for SOₓ/NOₓ/water (tolerance thresholds and whether deactivation is reversible)

One-sentence takeaways:

• The core value of Route A is “capturing at low pressure,” with risks in “water competition + regeneration cost.”
• The core value of Route B is “better recyclability under more realistic conditions, concentrating capacity in the useful window,” with risks in “higher impurity-cleanup requirements + process consistency.”

4.2 How to Choose: Turn Selection into Three Rules

1. Is the flue gas clearly humid, and does humidity fluctuate?

• Yes: prioritize usability under humid conditions. In this case, Route B (humidity-tolerant / mild-regeneration) is generally preferred.
• If Route A (open metal sites/strong sites) is considered, require dry vs humid comparisons (isotherms or breakthrough curves) and humid-cycle stability data to confirm that water-competitive adsorption does not significantly erode low-partial-pressure working capacity or long-term performance. Post-combustion flue gas typically has low CO₂ partial pressure and persistent moisture, so relying only on dry-gas performance often overestimates real effectiveness.

2. How stringent is the regeneration window (conditions) allowed by the system? (This determines whether “strong sites” or a “mild-regeneration route” is feasible.)

• If regeneration is constrained (low temperature ceiling, limited vacuum, limited purge flow, lower overall energy target): prioritize Route B (mild regeneration / humidity tolerance). This design emphasizes usable capacity within the effective working partial-pressure interval and cycling stability under relatively mild conditions.
• If regeneration is more flexible (higher regeneration temperature or deeper vacuum allowed, and good dehumidification/pretreatment is available): Route A (open metal sites/strong sites) can be considered to strengthen low-partial-pressure affinity—but Qst and explicit regeneration parameters (T/vacuum/purge, capacity retention after cycling) must be checked to avoid “it adsorbs well but costs too much to regenerate.”

3. Is desulfurization/denitrification deep enough? Is there a risk of acidic impurities?

• If desulfurization/denitrification is insufficient and SOₓ/acid mist risk exists: prioritize solutions with higher impurity tolerance (often requiring more robust frameworks and less reliance on strongly reactive chemical sites), and treat impurity-tolerant cycling data as a hard requirement. In this case, do not directly adopt strongly site-dependent approaches (Route A or B) unless there is clear evidence of tolerance and regenerability.
• If pretreatment is sufficient and SOₓ can be controlled at low levels long-term: choose based on regeneration window and humidity. You can more proactively consider Route B (mild regeneration/cooperative adsorption) to gain system-level energy advantages. Route A may still be an option to strengthen low-partial-pressure affinity, but humid and cycling data remain essential.

V | Product Category Map

Product category	Main lever	Main hurdle it addresses	Typical application scenarios (energy / decarbonization-related)	Representative products (examples)
A. High-affinity site type (open metal sites / strongly polar sites)	Strong-interaction sites such as OMS	Capturing CO₂ at low partial pressure (low-pressure affinity/selectivity)	CO₂ capture/purification; (dry gas or humidity-controlled) acidic-gas adsorption, etc.	MOF-74 (CPO-27); HKUST-1 (Cu-BTC) (Note: may be humidity-sensitive; check dry/humid and cycling data.)
B. Robust framework type (water/thermal stable, “usability-oriented”)	Stronger metal–ligand bonds (often high-valence metal nodes: Zr⁴⁺/Al³⁺/Cr³⁺/Fe³⁺, etc.)	Long-term use (humidity/heat/chemical tolerance)	Humid-gas CO₂ separation and long-term cycling; adsorption/membrane-support platforms closer to real conditions	UiO-66 (Zr) family (a representative water-stable MOF)
C. Microporous sieving / gating type (window control / diffusion differences)	Aperture size, diffusion sieving, gating effects (often ZIF materials)	Selectivity via sieving/kinetics; regeneration/process energy must be verified under specific conditions	Gas-separation membranes; mixed-gas separations (not limited to CO₂; e.g., H₂/hydrocarbons/propylene–propane, etc.)	ZIF-8 (typical molecular-sieve membrane / mixed-matrix membrane filler)
D. Engineering shaping / system-material type (turning powders into systems)	Shaping density, binders/composites, thermal conductivity and pressure-drop design, monolith/honeycomb/pellets	“Fits + runs” (volumetric efficiency, heat transfer, pressure drop, cycling rate)	Adsorption beds / VSA / TSA, rotating adsorption and other engineered processes	Shaped pellets/monoliths/composite adsorbents
E. Cooperative adsorption / chemical-lever type (“step-shaped isotherm” route)	Amine functionalization / cooperative insertion (concentrating capacity in the useful partial-pressure window)	Mild regeneration + effective low-partial-pressure working capacity (must also verify humidity/impurity tolerance)	“Working-window design” routes closer to post-combustion flue-gas CO₂ capture	Diamine-appended Mg₂(dobpdc) (classic cooperative adsorption system)

VI | Product Navigation Table | MOF Materials for Energy: Locate the Right Products by “Experimental Task / Engineering Goal”

Need / scenario (typical experimental or engineering question)	Product category to check first	Why it comes first (selection logic)	Representative products in this list (Aladdin item No.)
CO₂ capture: adsorption isotherms / heat of adsorption / cycling stability—need a “classic benchmark + stable framework” to start quickly	Gas adsorption/storage & separation (HKUST-1) + robust framework (UiO-66 / UiO-66-NH₂)	HKUST-1 is a high-frequency benchmark adsorbent; Zr-MOFs are better for humidity/temperature/cycling stability baselines; –NH₂ leans toward enhanced CO₂ interactions / functionalization platform	C282528 (HKUST-1 Cu); Z282600 (UiO-66); Z282601 (UiO-66-NH₂)
Gas separation/sieving (e.g., CO₂/CH₄, CO₂/light hydrocarbons, H₂/CO₂): selectivity and kinetics	Microporous sieving/separation (ZIF-8) + robust framework (UiO-66 series)	ZIF-8 is a classic micropore/kinetic-sieving approach; UiO-66 series provides “structurally stable and comparable” separation/adsorption baselines	Z282555 (ZIF-8); Z282600 (UiO-66); Z282601 (UiO-66-NH₂)
Mixed-matrix membranes (MMM) / membrane separation: quickly validate “MOF + polymer film” benefits in the permeability–selectivity trade-off	Membrane materials / composite membranes (HKUST-1/PVDF composite membrane)	A membrane-ready form that enables rapid membrane performance evaluation and process-variable optimization (filler dispersion/interfacial compatibility/thickness)	C282530 (HKUST-1(Cu)/PVDF membrane)
More engineered, scalable adsorption evaluation (packing, shaping, reproducibility, batch consistency)—avoid staying at “lab powder” level only	Commercial MOFs (Basolite® series)	Commercial products are better for scale/reproducibility benchmarking (process window, cycle life, bed evaluation) and easier for benchmarking vs in-house samples	B475903 (Basolite® F300); B487216 (Basolite® Z377)
Photocatalytic H₂ evolution / solar-driven CO₂ conversion, or MOF–co-catalyst/carbon composites for photoconversion	Photocatalysis / solar conversion (NH₂-MIL-125(Ti))	Ti-oxo cluster MOFs are common photocatalysis platforms; –NH₂ helps with light absorption/material modification and composite design for charge separation	H282370 (NH₂-MIL-125(Ti))
Adsorption refrigeration/heat pumps/dehumidification/low-grade heat utilization: focus on water-vapor uptake, regeneration temperature, cycling stability	Adsorption thermal management/dehumidification (CAU-10)	CAU-10 is a common candidate for water-vapor adsorption; suitable for water isotherms, cycle life, regeneration window, and thermal-management KPI comparisons	A281773 (CAU-10)
Al-based MOF adsorption baseline / lower-cost benchmark (CO₂ adsorption, separation, thermal effects) or shaped-adsorbent candidates	Al-based frameworks/adsorbents (aluminum terephthalate)	Al-based materials are often used as cost/stability/surface-area benchmarks; convenient for side-by-side comparisons with Zr-MOFs and Cu-MOFs under conditions	A281775 (aluminum terephthalate)
Prioritize humidity/thermal robustness and operating-condition fit (water vapor, temperature swings, many cycles)	Robust framework (UiO-66) first, then UiO-66-NH₂	Zr-MOFs are typically more suitable for stability validation under realistic conditions; –NH₂ balances functionalization and adsorption interactions, but condition-fit should remain primary	Z282600 (UiO-66); Z282601 (UiO-66-NH₂)
Want a minimal benchmark set (2–3 materials) covering “adsorption capability + stability + microporous sieving”	HKUST-1 + UiO-66 + ZIF-8	They represent: a classic high-frequency adsorption benchmark, a robust framework for condition-fit, and a microporous sieving / carbon-precursor route—covering the most common energy data framework	C282528 (HKUST-1); Z282600 (UiO-66); Z282555 (ZIF-8)

Usage tips:

• For adsorption/capture, start with HKUST-1 as the benchmark, then use UiO-66 as the operating-condition stability control; add ZIF-8 for sieving separations; for membranes, go directly to the HKUST-1/PVDF composite membrane; for photocatalysis, choose NH₂-MIL-125(Ti); for thermal management/dehumidification, choose CAU-10; for engineering scalability and reproducibility, choose Basolite® products.

Table 1 | Representative MOF Materials for Energy Applications: Categorized by “Adsorption/Separation—Membranes—Photocatalysis—Thermal Management”

Category	CAS No.	Aladdin item No.	Name	Specification / purity	Product features & applications (energy-related MOFs)
Gas adsorption/storage & separation | Cu-MOF with open-site potential (HKUST-1)	51937-85-0	C282528	Copper(II) trimesate MOF, HKUST-1 (Cu)	Particle size: ≤3000 nm; BET surface area >1000 m²/g	A classic Cu-BTC/HKUST-1 with high surface area and potential open Cu sites; widely used for CO₂ adsorption/separation, CH₄/H₂ storage evaluation, and heat-of-adsorption studies. Also used as a precursor for porous carbon/metal(oxide) composites in electrocatalysis and energy-storage material exploration.
Robust framework/support | Zr-MOF (UiO-66), water/thermal stable (separation/capture/storage)	1072413-89-8	Z282600	Zirconium terephthalate MOF (UiO-66)	Particle size: 100–500 nm; BET surface area 1000–2000 m²/g	A representative high-stability Zr-MOF, suitable as a benchmark for CO₂ capture, gas separation, and gas storage under humid and temperature-varying conditions. Nanoscale particles facilitate composite membranes/coatings/electrode composites; also commonly used as a stable porous support in energy-relevant catalysis (e.g., hosting and confining CO₂ conversion catalysts).
Functionalized robust framework | UiO-66-NH₂ (CO₂ affinity / catalytic & photofunctional platform)	1260119-00-3	Z282601	Zr-MOF (UiO-66-BDC-NH₂, BDC-NH₂:Zr = 0.9–1.0)	0.8–1.1 nm; particle size 800 nm–3 μm	–NH₂ functionalization on UiO-66 often enhances interactions with acidic gases such as CO₂, enabling carbon capture/selective adsorption and serving as a platform for functionalized catalysis (e.g., CO₂ conversion). Also widely used as a starting material for photo/electrocatalytic composite supports and porous confinement reaction systems.
Microporous sieving/separation | ZIF-8 (gas separation / carbon precursor)	59061-53-9	Z282555	ZIF-8 (2-methylimidazolate zinc MOF)	Zn = 28–30 wt%	A typical hydrophobic microporous framework used for gas separation/molecular sieving (e.g., CO₂/light-hydrocarbon selectivity studies) and adsorption kinetics. Also a common precursor for porous carbon/N-doped carbon (after pyrolysis) in electrochemical energy-storage routes (ORR, supercapacitors, battery electrodes, etc.).
Commercial MOF | BASF Basolite® series (engineered gas adsorption/separation)	1195763-37-1	B475903	Basolite® F300	BASF product	A commercial MOF series product (better suited for scale-up and reproducibility benchmarking), commonly used in CO₂ adsorption/carbon capture and gas separation/purification process comparisons. Suitable for evaluating cycling stability, shaping/packing, and bed-level engineering metrics such as pressure drop (specific framework type to be confirmed by COA/technical datasheet).
Commercial MOF | BASF Basolite® series (engineered gas adsorption/separation)	676593-65-0	B487216	Basolite® Z377	—	Another Basolite® commercial MOF for verifying reproducibility and cycle life in adsorption/separation, and for side-by-side benchmarking versus powders, shaped bodies, and composite membrane solutions (specific framework type to be confirmed by COA/technical datasheet).
Membrane materials/composite separators | MOF–polymer composite membrane (gas separation/carbon capture)	51937-85-0	C282530	HKUST-1(Cu)/PVDF membrane (35/65 wt.%)	MOF HKUST-1(Cu)/PVDF membrane (35/65 wt.%)	A mixed-matrix membrane (MMM) form combining PVDF film-forming/chemical resistance with HKUST-1’s porous adsorption. Used for CO₂ capture and gas separations (e.g., CO₂/CH₄, H₂/CO₂), natural gas sweetening and H₂ purification. Well-suited for studying permeability–selectivity trade-offs and optimizing filler dispersion and interfacial compatibility.
Photocatalysis/solar conversion | Ti-MOF (visible-light-response modification)	1309760-94-8	H282370	Hexa-[μ-(2-amino-1,4-benzenedicarboxylate)][tetra-μ-hydroxy-octa-μ-oxo-octatitanium], NH₂-MIL-125(Ti)	Reagent grade	A typical Ti-oxo cluster MOF photocatalysis platform; –NH₂ functionalization is often used to expand light absorption and study charge separation. Applied in photocatalytic H₂ evolution/CO₂ reduction, solar-driven reactions, and photoelectro-material composites (with co-catalysts/dyes/conductive carbon) for energy conversion.
Adsorption thermal management/dehumidification | CAU-10 (low-temperature regeneration heat pump/heat conversion)	1416330-84-1	A281773	Aluminum hydroxide isophthalate MOF (CAU-10, Isophthalate:Al = 0.9–1.0)	Particle size 0.4–0.7 μm	CAU-10 is a common water-vapor-adsorbing MOF candidate for adsorption refrigeration/heat pumps, dehumidification, and low-grade heat utilization. Suitable for water isotherms, cycling stability, regeneration temperature window evaluation, and energy-efficiency benchmarking against other water-adsorption materials.
Al-based framework/adsorbent | Al-BDC (separation/capture/thermal-management benchmark)	654061-20-8	A281775	Aluminum terephthalate	Surface area 1100–1500 m²/g	Al-based metal–carboxylate frameworks are often used in CO₂ adsorption/separation and heat-of-adsorption studies; relatively high surface area makes it a candidate adsorbent (including shaped bodies) and a benchmark for screening energy-related composites (porous supports, confined catalysis, electrolyte additives).

Aladdin: https://www.aladdinsci.com/