一种用于高效稳定可见光驱动析氢的无贵金属MoS纳米片耦合MAPbI光催化剂。

A noble-metal-free MoS nanosheet-coupled MAPbI photocatalyst for efficient and stable visible-light-driven hydrogen evolution.

作者信息

Wang Fang, Liu Xiangyu, Zhang Zhengguo, Min Shixiong

机构信息

School of Chemistry and Chemical Engineering, Key Laboratory of Electrochemical Energy Conversion Technology and Application, North Minzu University, Yinchuan, 750021, P. R. China.

出版信息

Chem Commun (Camb). 2020 Mar 17;56(22):3281-3284. doi: 10.1039/d0cc00095g.

DOI:10.1039/d0cc00095g

PMID:32073108

Abstract

We report that MoS2 nanosheets (MoS2 NSs) as a cocatalyst in situ coupled with MAPbI3 lead to a highly efficient composite photocatalyst for visible-light-driven photocatalytic H2 evolution. The most efficient MAPbI3/MoS2 NSs composite exhibits a high H2 evolution rate (206.1 μmol h-1) in MAPbI3-saturated HI solution, which is 121 times higher than that of pristine MAPbI3 (1.7 μmol h-1) and greatly superior to that of MAPbI3/Pt/C (68.5 μmol h-1), and the composite is very stable for H2 evolution in a 156 h reaction.

摘要

我们报道，二硫化钼纳米片（MoS2 NSs）作为助催化剂与MAPbI3原位耦合，可形成一种用于可见光驱动光催化析氢的高效复合光催化剂。在MAPbI3饱和的HI溶液中，最有效的MAPbI3/MoS2 NSs复合材料表现出高析氢速率（206.1 μmol h-1），这比原始MAPbI3（1.7 μmol h-1）高121倍，且大大优于MAPbI3/Pt/C（68.5 μmol h-1），并且该复合材料在156小时的反应中析氢非常稳定。