Chemistry – Electrochemistry - Hydrogen-oxygen fuel cells | e-Consult
Electrochemistry - Hydrogen-oxygen fuel cells (1 questions)
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Here's a table outlining the environmental considerations for hydrogen-oxygen fuel cells and gasoline/petrol engines:
| Cell | ||
| Gasoline/Petrol Engine | Hydrogen-Oxygen Fuel Cell | |
| Emissions | Emissions | |
| CO2, NOx, HC, Particulate Matter (PM) | Water (H2O) - primarily. Potential for NOx if hydrogen production involves nitrogen oxides. | |
| Resource Use | Resource Use | |
| Fossil Fuel Depletion, Oil Spills, Refining processes | Water for hydrogen production (electrolysis), potential for energy-intensive hydrogen production methods (e.g., steam methane reforming). Metal use for fuel cell components (platinum). | |
| Climate Change Impact | Potentially lower climate impact if hydrogen is produced from renewable sources (e.g., electrolysis powered by solar/wind). Impact depends on hydrogen production method. | Higher if hydrogen is produced from fossil fuels. Lower with renewable hydrogen production. |
| Other Considerations | Requires significant infrastructure investment for hydrogen production, storage, and distribution. | Safety concerns associated with hydrogen storage and handling. |