Neftaly 100 Proposals for the Chemistry for Climate Action Challenge

1. CO₂‑to‑Fuel Electrocatalyst – Develop a low‑cost, earth‑abundant catalyst that converts CO₂ into methanol at mild conditions.
2. Solar‑Driven Water Splitting Membrane – Create a photo‑electrochemical cell with a self‑healing membrane for green hydrogen production.
3. Biodegradable Plastic from Lactic Acid – Engineer a fully compostable PLA blend using waste agricultural feedstocks.
4. Carbon‑Negative Biochar Fertilizer – Produce biochar from rice husks and integrate it into a slow‑release NPK matrix.
5. Low‑Temperature Methanol Synthesis – Design a catalyst that operates at <150 °C for small‑scale renewable methanol plants.
6. Seaweed‑Derived Carbon Fiber – Convert cultivated seaweed biomass into carbon‑fiber composites for lightweight transport.
7. Nanocellulose‑Based Air Filter – Fabricate a biodegradable filter that captures PM₂.₅ and CO₂ simultaneously.
8. Recyclable Lithium‑Sulfur Battery – Develop a sulfur‑based cathode with a dissolvable polymer binder for easy recycling.
9. CO₂ Capture from Flue Gas Using Ionic Liquids – Engineer task‑specific ionic liquids that absorb CO₂ at ambient pressure.
10. Green Synthesis of Adipic Acid – Replace petrochemical routes with a one‑step enzymatic conversion of glucose.
11. Solar‑Powered Desalination Catalyst – Create a photocatalyst that enhances seawater desalination under sunlight.
12. Self‑Healing Concrete Additive – Use microbial calcite precipitation to extend infrastructure lifespan.
13. Waste‑Tyre Upcycling to Carbon Black – Develop a low‑energy pyrolysis process with integrated emissions scrubbing.
14. Bio‑Based Surfactants from Cashew Nut Shell Liquid – Produce eco‑friendly detergents for textile and cleaning industries.
15. CO₂‑Utilizing Cyanobacteria Bioreactor – Engineer cyanobacteria to fix CO₂ into biodegradable PHA polymers.
16. Metal‑Organic Framework for Methane Storage – Synthesize MOFs that adsorb methane at low pressures for rural energy.
17. Green Extraction of Rare Earth Elements – Use deep eutectic solvents to recover REEs from electronic waste.
18. Solar‑Reflective Cool Roof Coating – Formulate a water‑based paint with infrared‑reflective pigments from waste iron oxide.
19. Carbon‑Neutral Fertilizer Production – Combine electrolytic hydrogen with nitrogen fixation using a renewable catalyst.
20. Biocatalytic Conversion of CO₂ to Formic Acid – Immobilize formate dehydrogenase on nanocarriers for continuous operation.
21. Eco‑Friendly Leather Tanning Agent – Replace chromium with tannins extracted from acacia bark.
22. Low‑Energy Phosphorus Recovery – Develop a struvite precipitation system powered by microbial fuel cells.
23. CO₂‑Cured Concrete Blocks – Accelerate carbonation curing using waste CO₂ from fermentation.
24. Silica Aerogel from Rice Husk Ash – Produce super‑insulating aerogels for building energy efficiency.
25. Waste‑Water Nutrient Recovery – Use ion‑exchange resins to harvest nitrogen and phosphorus for hydroponics.
26. Green Synthesis of Graphene Oxide – Replace harsh oxidants with oxygen plasma treatment.
27. Carbon Capture by Enzyme‑Functionalized Nanofibers – Immobilize carbonic anhydrase on electrospun fibers for ambient CO₂ capture.
28. Bio‑Pesticide from Neem Oil Nanoemulsion – Formulate a stable nano‑emulsion for reduced pesticide load.
29. Solar‑Powered CO₂ Conversion to Syngas – Integrate perovskite PV with a solid‑oxide electrolyzer.
30. Reusable Silicone‑Based Face Mask – Design a mask with antimicrobial silver‑nanowire coating and replaceable filters.
31. Wheat Straw‑Derived Activated Carbon for Water Purification – Produce low‑cost adsorbent for heavy metal removal.
32. Electrochemical Upcycling of PET Waste – Convert PET monomers back to terephthalic acid using a paired electrolysis cell.
33. CO₂‑Based Polyurethane Foams – Incorporate captured CO₂ into polyol chains for insulation panels.
34. Solar‑Charged Zinc‑Air Battery – Combine a bifunctional photovoltaic cell with a zinc‑air flow battery for off‑grid storage.
35. Carbon Capture by Metal‑Organic Framework Membranes – Fabricate thin‑film MOF membranes for selective CO₂/N₂ separation.
36. Biodegradable Super‑Absorbent Polymer from Cassava Starch – Replace polyacrylate in diapers with a compostable alternative.
37. CO₂‑Derived Polycarbonate Plastics – Co‑polymerize CO₂ with epoxides to produce rigid, recyclable polymers.
38. Green Synthesis of Nano‑Zero‑Valent Iron – Use plant extracts as reductants for soil remediation agents.
39. Solar‑Powered Ammonia Synthesis – Develop a low‑voltage electrocatalyst for N₂ reduction under ambient conditions.
40. Recyclable Catalyst for Biodiesel Production – Immobilize sulfonic acid groups on magnetic nanoparticles for easy recovery.
41. Carbon Fiber from Lignin Waste – Lignin valorization into carbon‑fiber precursors for automotive parts.
42. CO₂ Capture by Solid Amine Sorbents on Textiles – Functionalize cotton fabrics for indoor CO₂ scrubbing.
43. Bio‑Based Antifungal Coating for Post‑Harvest Produce – Extract chitosan from shrimp shells for edible coating.
44. Electrochemical Upcycling of CO₂ to Formic Acid – Use bismuth‑based cathodes in a flow cell for high Faradaic efficiency.
45. Solar‑Reflective Cool Paint from Waste Copper Slag – Recycle slag into pigments for building envelopes.
46. Green Synthesis of Vitamin B12 Analogues – Chemo‑enzymatic route reducing hazardous solvents.
47. CO₂‑Derived Carbon Nanotubes – Grow CNTs via catalytic chemical vapor deposition using captured CO₂.
48. Biodegradable Mulch Film from Polylactic Acid‑Starch Blend – Develop a film that degrades within 60 days.
49. Low‑Energy Desalination via Capacitive Deionization – Engineer carbon‑electrode materials for brackish water treatment.
50. CO₂ Capture by Enzyme‑Modified Biochar – Immobilize carbonic anhydrase on biochar for enhanced adsorption.

51‑100 (continued)

51. Solar‑Powered Pesticide Degradation – Photocatalytic nanocomposite tiles that break down pesticide residues on water surfaces.
52. Carbon‑Neutral Cement Additive – Use waste fly ash and nano‑silica to reduce clinker content by 30 %.
53. CO₂‑Based Microalgae Bio‑Fuel – Co‑feed flue‑gas CO₂ to high‑lipid microalgae for biodiesel.
54. Electrochemical Conversion of Biomass to Platform Chemicals – Produce furfural and levulinic acid from lignocellulose.
55. Green Antifouling Paint from Seaweed Extracts – Replace copper‑based paints for marine vessels.
56. CO₂ Capture by Solid‑State Ionic Liquids – Design polymer‑supported ionic liquids for rapid cyclic adsorption.
57. Biodegradable Super‑Capacitor Electrolyte – Use sodium‑carboxymethyl cellulose gel for flexible energy storage.
58. Solar‑Driven Wastewater Treatment – Integrate TiO₂‑based photocatalysts with compound parabolic collectors.
59. CO₂‑Derived Formaldehyde for Resins – Catalytic hydrogenation of CO₂ to formaldehyde for wood adhesives.
60. Eco‑Friendly Fire‑Retardant Coating – Develop phosphorus‑based intumescent coatings from phytochemicals.
61. Carbon Capture by Metal‑Organic Framework‑Functionalized Membranes – Thin‑film composite membranes for industrial CO₂/N₂ separation.
62. Green Synthesis of Nanocatalysts Using Coffee Ground Extracts – Produce Pd‑nanoparticles for Suzuki coupling reactions.
63. Solar‑Powered Electrochemical CO₂ Reduction to Ethylene – Copper‑based catalyst tuned for C₂H₄ selectivity.
64. Biodegradable Mulch Film with Fertilizer Nanocapsules – Slow‑release nitrogen integrated into PLA matrix.
65. CO₂ Capture by Low‑Cost Alkaline Earth Silicates – Sorbents derived from mining tailings for cyclic operation.
66. Electrochemical Upcycling of Waste PET to Value‑Added Monomers – Split PET into terephthalic acid and ethylene glycol.
67. Solar‑Reflective Roof Tiles from Recycled Glass – High albedo tiles for urban heat island mitigation.
68. CO₂‑Derived Polycarbonate Foams for Insulation – Expandable beads using CO₂ as blowing agent.
69. Green Extraction of Astaxanthin from Shrimp Waste – Supercritical CO₂ method with co‑solvent optimization.
70. *Carbon Capture by Enzyme‑
    [11/09, 10:34] Meta AI: *Proposals 71‑100 for the Chemistry for Climate Action Challenge*
71. Carbon Capture by Enzyme‑Modified Bio‑Silica – Immobilize carbonic anhydrase on mesoporous silica for rapid CO₂ uptake.
72. Solar‑Powered CO₂ Conversion to Formic Acid – Use a bismuth‑based electrocatalyst in a photovoltaic‑electrochemical cell.
73. Biodegradable Super‑Absorbent Hydrogel from Sweet‑Potato Starch – Replace polyacrylate in hygiene products.
74. CO₂‑Derived Polyhydroxyalkanoates (PHA) via Engineered Halomonas – Produce biodegradable plastics from industrial flue gas.
75. Electrochemical Upcycling of Waste Polyurethane – Break down PU into reusable polyols using a paired electrolysis system.
76. Green Synthesis of Nano‑Zero‑Valent Copper – Reduce copper salts with green tea extract for water remediation.
77. Solar‑Reflective Cool Asphalt Additive – Incorporate titanium‑doped iron oxide pigments to lower road temperature.
78. CO₂ Capture by Solid Amine‑Functionalized Metal‑Organic Frameworks – Tailor MOF ligands for high CO₂ affinity at low pressure.
79. Electrochemical Conversion of Biomass to Lactic Acid – Use a bimetallic Ni‑Sn cathode in a flow reactor.
80. Bio‑Based Antifouling Coating from Marine Algae – Extract brominated furanones to inhibit biofilm formation on ships.
81. Carbon‑Neutral Synthetic Methane Production – Combine electrolytic H₂ with CO₂ using a structured Ni‑Fe catalyst.
82. Recyclable Magnetic Nanocatalyst for Biodiesel – Sulfonated iron‑oxide nanoparticles for easy separation.
83. Solar‑Powered Nitrogen Fixation – Develop a photo‑electrochemical cell with a Mo‑based catalyst for ammonia at ambient conditions.
84. CO₂‑Derived Carbon Nanofibers for Supercapacitors – Grow CNFs on carbon paper using CO₂ as carbon source.
85. Green Extraction of Lignin Using Deep Eutectic Solvents – Optimize choline‑chloride/urea mixtures for high‑purity lignin.
86. Electrochemical Upcycling of Waste Polystyrene to Styrene Monomers – Paired electrolysis with a graphite anode.
87. Biodegradable Packaging Film from Chitosan‑Nanocellulose Composite – Enhance barrier properties with nano‑clay.
88. CO₂ Capture by Enzyme‑Functionalized Electrospun Nanofibers – Carbonic anhydrase immobilized on polyacrylonitrile fibers.
89. Solar‑Driven Hydrogen Production from Seawater – Dual‑photoelectrode system with corrosion‑resistant coatings.
90. Carbon Capture by Low‑Cost Alkaline Earth Silicates Derived from Red Mud – Recycle bauxite residue into CO₂ sorbents.
91. Electrochemical Conversion of CO₂ to Ethanol – Copper‑tin alloy catalyst in a gas‑diffusion electrode cell.
92. Green Synthesis of Vitamin D₂ from Mushroom Ergosterol – Photochemical conversion using UV‑LED reactors.
93. CO₂‑Based Polyurethane Elastomers for Automotive Interiors – Replace petroleum‑based polyols with CO₂‑derived polyether polyols.
94. Solar‑Reflective Cool Roof Tiles from Recycled Ceramic Waste – High NIR reflectance for building energy savings.
95. Electrochemical Upcycling of Waste PET to Value‑Added Monomers – Split PET into terephthalic acid and ethylene glycol.
96. Biodegradable Super‑Capacitor Electrolyte from Gelatin‑Ionic Liquid Blend – Safe, low‑cost energy storage for wearables.
97. CO₂ Capture by Solid‑State Ionic Liquids Supported on Porous Carbon – Enhanced cyclic stability for post‑combustion capture.
98. Green Synthesis of Nano‑Hydroxyapatite from Fish Bones – Produce biocompatible filler for bone‑repair composites.
99. Solar‑Powered Pesticide Degradation Using ZnO‑Graphene Nanocomposites – Photocatalytic breakdown of organophosphates in water.
100. Carbon‑Neutral Cement Additive from Waste Steel Slag – Alkali‑activated slag cement reduces clinker demand by 40 %.