Despite its potential, CO2RR faces several challenges:
1. Selectivity: Achieving high selectivity for a desired product is difficult due to the variety of possible reaction pathways. 2. Energy Efficiency: The process requires significant energy input, often in the form of electricity, which must come from renewable sources to be truly sustainable. 3. Catalyst Stability: Catalysts can degrade over time, reducing their effectiveness and lifespan. 4. Reaction Rates: The rates of CO2RR are often slow, necessitating the development of more active catalysts.
