An efficient, formic acid selective CO2 electrolyzer with a boron-doped diamond cathode
An efficient, formic acid selective CO2 electrolyzer with a boron-doped diamond cathode
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DOI：
10.1039/d1se00309g
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发表时间：
2021-04-05
影响因子：
5.6
通讯作者：
Einaga, Yasuaki
中科院分区：
文献类型：
--
作者：
Du, Jinglun;Fiorani, Andrea;Einaga, Yasuaki
我们制作了一个CO2电解槽，以调查的能量需求和电化学能量转换效率时，使用硼掺杂金刚石作为阴极。使用硼掺杂的金刚石电极电化学还原CO2的主要产物是甲酸，法拉第效率为96%。的电化学能转换效率进行了研究，在不同的偏压，它达到43%，非常接近预测的最大值，在3 V的电池电压。如果二次产品，氢气和一氧化碳，也被认为是，总的电化学能转换效率高达45%。
We fabricated a CO2 electrolyzer in order to investigate the energy requirements and the electrical-to-chemical energy conversion efficiency obtained when using boron-doped diamond as the cathode. The main product in the electrochemical reduction of CO2 using a boron-doped diamond electrode is formic acid, with a faradaic efficiency of 96%. The electrical-to-chemical energy conversion efficiency was investigated at various bias voltages, and it reached 43%, very close to the predicted maximum value, at a cell voltage of 3 V. If the secondary products, hydrogen and carbon monoxide, are also considered, the total electrical-to-chemical energy conversion efficiency was as much as 45%.