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Most electrochemical CO2 reduction research has been confined to fundamental studies that attempt to understand how to overcome low selectivity and energy efficiency for valuable oxygenated products. Now, a modular, scalable system generates multi-carbon oxygenates with a potential solar-to-alcohol efficiency of more than 8%.
Electrophilic substitution of aromatics on zeolites is generally assumed to occur through the Wheland-type intermediate, although direct experimental evidence is lacking. Now, this carbenium ion has been identified as a stable intermediate in the alkylation of benzene with ethanol on an industrial zeolite catalyst.
Chemical and biological catalysts provide distinct advantages and disadvantages to the synthetic chemist. This Review focuses on efforts to combine chemo- and biocatalysts, outlining the opportunities achievable by this approach and also efforts to overcome any incompatibilities between these different systems.
