过氧化氢
三氧化钨
制氢
电解水
钒酸铋
化学
水溶液
分解水
无机化学
钨酸盐
钨
氢
钒酸盐
阴极
电解
光化学
光催化
催化作用
电极
电解质
有机化学
生物化学
物理化学
作者
Kojiro Fuku,Kazuhiro Sayama
摘要
An aqueous solution of hydrogen carbonate (HCO3(-)) facilitated oxidative hydrogen peroxide (H2O2) production from water on a WO3/BiVO4 photoanode with the simultaneous production of hydrogen (H2) on a Pt cathode even at an applied voltage far lower than the theoretical electrolysis voltage (+1.77 V vs. RHE) under simulated solar light. The unprecedentedly efficient simultaneous production and accumulation of H2O2 and H2 was achieved in 2.0 M KHCO3 at low temperature, and the maximum selectivity, accumulated concentration and turnover number (TON) of H2O2 generated reached ca. 54%, more than 2 mM and 108, respectively.
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