Carbon quantum dots modified MoS2 with visible-light-induced high hydrogen evolution catalytic ability | |
作者： | Shunyan Zhao, Chuanxi Li, Liping Wang, Naiyun Liu, Shi Qiao, Beibei Liu, Hui Huang, Yang Liu**, 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： | We developed a facile hydrothermal method to fabricate the carbon quantum dots (CQDs)/MoS2 composite as hydrogen evolution reduction (HER) catalyst. After irradiation with visible light for 30 min, the CQDs/MoS2 composite (as CQDs/MoS2-L30) performed improved HER activity, featured by a **all overpotential of ~0.125 V at 10 mA cm-2, a high current density, a **all Tafel slope of 45 mV/decade and a long term stability in 0.5 M H2SO4. This kind of activity improvement towards HER may be due to the high charge transfer efficiency, the decrease of S4+ and the increase of S22- and S2- after the light treatment. |
影响因子： | 6.196 |
分区情况： | 1区 |
链接： | http://www.sciencedirect.com/science/article/pii/S0008622315305546 |
