Wednesday, 16 May 2018
Ballroom 6ABC (Washington State Convention Center)
Electrochemical reduction of carbon dioxide (ERC) is a promising way to solve the greenhouse effect and energy issues. We look forward to finding efficient, durable and cost-effective catalysts for the practical application of ERC. Metal sulfides can be used as desirable catalysts for ERC. Sulfides of transition metals are considered as catalyst candidates for the ERC in this study. Selected metal sulfides are coated on carbon paper to get the gas diffusion electrode (GDE), which are then used to catalyze the ERC in KHCO3 solution. Their electrocatalystic activity, product selectivity and durability for ERC were evaluated by cyclic voltammetry and linear sweep voltammetry. The structures of them are investigated by using SEM, TEM, etc. To confirm the influence of different synthesis methods on the performance, we used hydrothermal and chemical synthesis to prepare the metal sulfides. The results indicated the desirable electrochemical catalytic performance.