Artificial photosynthesis used to produce renewable molecular hydrogen for synthesizing carbon dioxide into methane. Credit: Berkeley Lab
Researchers using a bioinorganic hybrid approach to artificial photosynthesis have combined semiconducting nanowires with select microbes to create a system that produces renewable H2 and uses it to synthesize CO2 into methane, the primary constituent of natural gas.
“By generating renewable hydrogen and feeding it to microbes for the production of methane, we can now expect an electrical-to-chemical efficiency of better than 50% and a solar-to-chemical energy conversion efficiency of 10% if our system is coupled with state-of-art solar panel and electrolyzer.”
The concept in the 2 studies is essentially the same – a membrane of semiconductor nanowires t...
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