The optimization of electrolyte composition for CH4 and H2 generation via CO2/H2O co-electrolysis in eutectic molten salts

The optimization of electrolyte composition for CH4 and H2 generation via CO2/H2O co-electrolysis in eutectic molten salts
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共晶熔盐中 CO2/H2O 共电解产生 CH4 和 H2 的电解质组成优化

DOI:
10.1016/j.ijhydene.2018.09.089
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发表时间:
2019-02
影响因子:
7.2
通讯作者:
吴红军
吴红军
中科院分区:
工程技术2区
文献类型:
--
作者:
纪德强;李志达;李伟;苑丹丹;王宇航;于艳艳;吴红军

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A huge number of carbon dioxide (CO2) emission is beyond the scope of the natural changes of the earth itself and destabilizes the carbon cycle, which leads to worsening global warming problem, and also seriously threats the survival and development of human. Herein, CO2is captured and transformed electrochemically with H2O to controllably generate CH4and H2in an electrolyte comprising a eutectic of carbonates and hydroxides with equal-area Fe cathode and Ni anode. Gas chromatography (GC) is employed to analyze the content of gaseous products. Additionally, Faraday efficiency under different conditions is measured via the comparison between moles of obtained fuel gas (mainly composed of CH4and H2) and the Faradays of charge passed during the electrolysis reaction. This article investigates the effect of molten salt compositions on gaseous product generation, and confirms the visible dependence of obtained products on the electrolytes.
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