题目：

Achieving electroreduction of CO₂ to CH₃OH with high selectivity using a pyrite�nickel sulfide nanocomposite

作者：

Siqi Zhao, Sijie Guo, Cheng Zhu, Jin Gao, Hao Li, Hui Huang,* Yang Liu* and Zhenhui Kang*

单位：

Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & SoftMaterials (FUNSOM), Soochow University, 199 Ren'ai Road, Suzhou, 215123, Jiangsu, PR China.

摘要：

Electrochemical reduction of carbon dioxide (CO₂) to methanol (CH₃OH) catalyzed by transition metals has been proved feasible and effective in aqueous electrolytes. In this work, we introduce a FeS₂/NiS nanocomposite electrocatalyst synthesized by traditional hydrothermal method, which selectively reduces CO₂ to CH₃OH with an unprecedented overpotential of 280 mV and a high faradaic efficiency up to 64% at the potential of -0.6 V vs. reversible hydrogen electrode (RHE). The FeS₂/NiS nanocomposite electrocatalyst exhibits a stable current density of 3.1 mA cm^-2 over a 4 hour stability test. The high selectivity towards CO₂ electroreduction to CH₃OH may be attributed to the special ladder structure of the FeS₂/NiS nanocomposite. The active sites are located at the interface between FeS₂ and NiS which can effectively suppress the side reaction hydrogen evolution reaction and facilitate the CO₂ reduction reaction.

影响因子：

3.289

分区情况：

2区

链接：

http://pubs.rsc.org/en/content/articlelanding/2017/ra/c6ra26868d#!divAbstract

责任编辑：向丹婷 联系方式：dtxiang@suda.edu.cn