为了制备实验所需的电催化剂使用了上海麦克林生化科技有限公司提供的四硫钼酸铵≥9995以及广东翁江化学化学试剂有限公司提供的硝酸银AR。为了洗涤电催化剂使用了购自天津科密欧化学试剂有限公司的乙醇胺AR。在电催化剂负载过程中使用了天津市大茂化学试剂厂的无水乙醇AR加入部分的去离子水用于溶解催化剂；同时使用美国杜邦公司提供的Nafion 溶液5 wtAR和郑州阿尔法化工有限公司的碳纳米管≥95固定催化剂

In order to prepare the required electrocatalyst for the experiment, ammonium tetrathiomolybdate (≥99.95%) provided by Shanghai Macklin Biochemical Technology Co., Ltd. and silver nitrate (AR) provided by Guangdong Wengjiang Chemical Reagent Co., Ltd. were used. Ethanolamine (AR) purchased from Tianjin Kemiou Chemical Reagent Co., Ltd. was used for washing the electrocatalyst. During the electrocatalyst loading process, anhydrous ethanol (AR) supplied by Tianjin Damao Chemical Reagent Factory was used, along with some deionized water for dissolving the catalyst. Nafion solution (5 wt.%, AR) provided by DuPont and carbon nanotubes (≥95%) from Zhengzhou Alfa Chemical Co., Ltd. were used for immobilizing the catalyst. Sulfuric acid (AR) from Tianjin Damao Chemical Reagent Factory, 1-butyl-3-methylimidazolium tetrafluoroborate ([Bmim]BF4) (≥98%) and tetrabutylammonium tetrafluoroborate (TBABF4) (≥98%) supplied by Shanghai Macklin Biochemical Technology Co., Ltd. were used to construct the H-type electrolytic cell. Carbon dioxide (CO2) and helium gas (He) (both ≥99.99%) were purchased from Baoding Jinglian Gas Plant