Discovery Sagaサイレントキーワード俯瞰

Geo-electrochemistry / Amino acids / Alteration / Carbonaceous chondrites / CO2 fixation / electroreduction of CO2 / bio-inspired catalysis / Carbon dioxide reduction / Bio-inspired catalysis / Electrocatalysis / Energy conversion / Thiamin pyrophosphate / Carbon Dioxide Reduction / Green Energy / Energy Conversion

Previously,I found that thiozolidine 4-carboxylic acid (TCA) can promote the generation of organic compounds under electrochemical conditions in presence of CO2. I confirmed the origin of these organics by isotope labeled CO2, however, no 13C-labeled products were observed. I discussed the results with geochemists in our institute, and we came into an idea that electrochemical alteration of amino acids could occur and contribute to the generation of amines, carboxylic acids on the icy plantesimals (parent bodies of carbonaceous chondrites).I studied the reactivity of model amino acids (glycine, valine, and alanine) under electrochemical conditions using iron sulfide and nickel sulfide as the catalysts. This opens up a new research area in geo-electrochemistry field.