Template-assisted synthesis of highly dispersed MoS2 nanosheets with enhanced activity for hydrogen evolution reaction
By Liu, Yan-Ru; Li, Xiao; Han, Guan-Qun; Dong, Bin; Hu, Wen-Hui; Shang, Xiao; Chai, Yong-Ming; Liu, Yun-Qi; Liu, Chen-Guang
Published in International Journal of Hydrogen Energy
2017
Abstract
Abstract Owing to the real active sites for hydrogen evolution reaction (HER) located on the rims and edges, it is critical to expose maximum active sites by limiting the stacking of MoS2. On the other hand, the existence of disulfide ligand (S22?) in MoS2 has been proved to be another key factor determining the rate of HER. In this work, a facile ?-Al2O3 template-assisted synthesis has been conducted to prepare highly dispersed MoS2 with appropriate amount of terminal disulfide ligand (S22?) as efficient electrocatalysts for HER. ?-Al2O3 template can facilitate the highly-dispersed growth of MoS2 with small size, which can provide vast active sites for HER. The effect of the different calcination temperature at 300, 350, 400, 450 and 500