Structure-Reactivity Effects of Biomass-based Hydroxyacids for Sustainable Electrochemical Hydrogen Production.

摘要: Biomass electro-oxidation is a promising approach for the sustainable generation of H2 by electrolysis with simultaneous synthesis value-added chemicals. In this work, two structurally different organic hydroxyacids, lactic acid and gluconic acid, was studied comparatively to understand how chemical structure hydroxyacid affects electrochemical reactivity under various conditions. It concluded that hydroxyacids such as considerable density C-OH groups, are highly reactive at low potentials high conversion rates (less than -0.15 V vs. Hg/HgO 400 mA cm-2 ) but selectivity specific final products. contrast, lower did not enable very (<100 mA cm-2 ), reaction significantly more selective (64 % pyruvic acid). This work shows potential biomass-based highlights importance on reactions.