Five MOF formula families engineered for extreme space environments — radiation shielding, life support, propulsion catalysis, water harvesting, and thermal management for Mars, Lunar, and orbital missions.
Spacecraft and satellites operate in some of the most extreme conditions imaginable: temperatures swinging from -270°C in deep space to +250°C in direct sunlight, constant bombardment by cosmic rays and solar radiation, vacuum conditions, microgravity, and atomic oxygen erosion in low Earth orbit. Conventional materials fail. MOFs don't.
Each formula family in CWY004 addresses one or more critical satellite/spacecraft needs. Together they form a complete materials toolkit for the next generation of space missions.
Flagship radiation protection MOFs. Gadolinium (Z=64) has the highest neutron capture cross-section of any element and strongly absorbs gamma rays. Hafnium has a high X-ray and γ-ray attenuation coefficient, superior to conventional Zr. Gd-MOFs thermally stable to 500°C in vacuum; resistant to oxidation. Hf-MOFs show strong thermal resistance under extreme UV radiation and superior mechanical strength in microgravity. 32 linker systems including pyrene, anthracene, and naphthalene tetracarboxylate series.
The most thermally, chemically, and mechanically stable MOF family. UiO-66, UiO-67, and MOF-808 withstand -200°C to 500°C, cosmic radiation, vacuum, and atomic oxygen. Strong Zr-O bonds (Young's modulus ~20 GPa) prevent structural failure. MOF-808 provides high H₂ storage; UiO-66/67 for CO₂ removal and O₂ management. Nanocomposite Zr-MOF coatings self-heal from micrometeoroid damage. 16 linker variants including terphenyl, azido, and bromo-functionalised series.
Exceptionally lightweight (density as low as 0.2 g/cm³) with surface areas >4000 m²/g. ZIF-8 provides remarkable CO₂ selectivity for air revitalisation. Thermal stability to 550°C. Photocatalytic activity with TiO₂/graphene composites for solar-driven water splitting and H₂ generation. ZIF composites combined with aerogels and polymers create radiation-resistant coatings for LEO satellite exteriors. Resists atomic oxygen corrosion — a critical failure mode in low Earth orbit. 3 btb/terphenyl linker variants.
Fe-MOFs (MIL-101, PCN-250, MIL-88B) possess intrinsic magnetic properties for magnetically controlled spacecraft components. MIL-101(Fe) enables CO₂ to CH₄ conversion for onboard power. MIL-88B(Fe) catalyses hydrazine decomposition for efficient satellite thrusters. Cr-MOFs (MIL-101(Cr), MIL-100(Cr)) have ~4000–4500 m²/g porosity and catalyse CO₂ hydrogenation to CH₄ for Martian ISRU. Porphyrin linkers (C₂₀H₁₄N₄) provide enhanced catalytic and electronic properties. 16 ligand variants for Cr, Ni, Co, Mn; 11 azobenzene variants for Fe.
ZIFs combine the best properties of zeolites and MOFs in a single material uniquely suited to space. Thermal stability to 550°C; structural integrity under vacuum, microgravity, and mechanical stress during launch (high G-force). High porosity (up to 90% free volume) enables compact H₂ and CH₄ fuel storage. ZIF membranes enable gas separation for ISRU on Mars — CO₂ from the Martian atmosphere can be separated and converted to CH₄ for fuel. ZIF-67 provides O₂ adsorption for life support systems. ZIF-8 efficiently scrubs CO₂ from spacecraft cabins. Hydrophobic nature and chemical stability protect against atomic oxygen erosion in LEO. 11 imidazolate ligand variants including methylimidazolate, trimethyl, and pentamethylbenzimidazolate.
Gd-MOF coatings for neutron and gamma-ray absorption. Hf-MOF for X-ray and solar radiation. Cr-MOF composites for cosmic ray protection. All lighter and more effective than conventional Pb/Al shielding.
ZIF-8 and UiO-66 for CO₂ scrubbing from cabin air. Ni-MOF-74 and Co-MOF-74 for O₂ storage and release. Compact, regenerable, and mass-efficient vs. LiOH canister systems.
MOF-808 (Zr) for high-capacity H₂ storage. ZIF membranes for CH₄ storage. MIL-88B(Fe) and MIL-100(Cr) for hydrazine decomposition. NH₂-MIL-125(Ti) for photocatalytic H₂ from water.
ZIF membranes separate CO₂ from Mars atmosphere (95% CO₂). Gd-MOF and Cr-MOF catalysts convert CO₂ to CH₄ (Sabatier reaction) for propellant. Hf-MOF water splitting for O₂ and H₂.
Zr-MOFs adsorb and desorb water as phase-change materials to regulate heat in electronic components. ZIF-8 thermal insulation coatings manage extreme temperature swings from -200°C to +250°C.
Hf-MOFs with hydrophilic properties capture and condense water from trace atmospheric moisture. Critical for long-duration missions. Prevents moisture damage to electronics and provides drinking water for astronauts.
Primary MOFs: ZIF-8 (AO resistance), Zr-UiO (structural durability), Cr-MIL-101 (gas management). Key threats: atomic oxygen erosion, thermal cycling, micrometeorites. ZIF hydrophobicity and Zr-MOF self-healing coatings are specifically engineered for LEO operating conditions.
Primary MOFs: Gd-MOF + Hf-MOF (intense radiation environment), Zr-MOF (extreme thermal). Deep space missions face unfiltered cosmic rays and solar particle events — Gd's neutron capture and Hf's X-ray attenuation provide layered shielding unachievable with conventional materials.
Primary MOFs: Zn-MOFs (lightweight, O₂/H₂ storage), Ni/Co-MOFs (energy storage, fuel cells), Hf-MOF (water splitting for LOX/LH₂). The lunar surface lacks a magnetosphere — radiation shielding and in-situ resource utilisation for water and oxygen are mission-critical needs.
Primary MOFs: Gd-MOF (CO₂→CH₄ ISRU catalyst), ZIF membranes (CO₂ separation from 95% CO₂ Martian atmosphere), UiO-66(Ti/Zr) (H₂ from water for fuel), Ni-MOF-74 (life support O₂). Mars ISRU is the single biggest enabler of cost-effective crewed missions — MOFs are central to it.
| Family | Metal(s) | Primary Use |
|---|---|---|
| Lanthanide (I) | Gd(III), Hf(IV) | Radiation shielding, ISRU |
| Zirconium (II) | Zr(IV) | Structural, thermal, H₂ storage |
| Zinc (III) | Zn(II) | Lightweight gas storage, LEO coatings |
| Fe/Cr/Ni/Co/Mn (IV) | Fe, Cr, Ni, Co, Mn | Propulsion catalysis, energy storage |
| ZIF (V) | Zn, Co, Fe, Cu | All-round: gas, ISRU, shielding |
| Property | Best-in-Class MOF | Value |
|---|---|---|
| Thermal stability | ZIF-8 / ZIF-67 | Up to 550°C |
| Mechanical strength | Zr-UiO series | ~20 GPa Young's modulus |
| Surface area | MIL-101 (Cr) | ~4000–4500 m²/g |
| Density | Zn-MOF-5 | 0.2 g/cm³ |
| Neutron shielding | Gd-MOF | Highest capture cross-section |
| H₂ adsorption | Ni-MOF-74 | ~6 wt% |
| CO₂ adsorption (Ni) | Ni-MOF-74 | >40 wt% |
| Free volume (ZIF) | ZIF-8 | Up to 90% |