题目：

A nickel nanoparticle/carbon quantum dot hybrid as an efficient electrocatalyst for hydrogen evolution under alkaline conditions

作者：

Yanmei Yang, Juan Liu, Sijie Guo, Yang Liu* and Zhenhui Kang*

单位：

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

摘要：

The exploration of an efficient electrocatalyst for hydrogen evolution reaction (HER) from water is a key to relieve the energy crisis, which is a great challenge. Herein, a nickel nanoparticle/carbon quantum dot (Ni/CQD) hybrid is synthesized and evaluated as an electrocatalyst for HER under a strongly alkaline medium (1 M KOH solution). The obtained Ni/CQD hybrid shows good catalytic ability for HER with an onset potential comparable to that of Pt wire and a low Tafel slope of 98 mV dec^-1, which may be attributed to the Ni�O�C interface between Ni NPs and CQDs. The Ni/CQDs also exhibit high stability after 1000 CV cycles with negligible current loss (around 1 mA cm^-2). Moreover, the catalytic ability of Ni/CQDs can be further improved under visible light illumination, suggested by a lower Tafel slope of 77 mV dec^-1.

影响因子：

6.629

分区情况：

1区

链接： 

http://pubs.rsc.org/en/content/articlelanding/2015/ta/c5ta04867b