MoS2-Co3S4 hollow polyhedrons derived from ZIF-67 towards hydrogen evolution reaction and hydrodesulfurization
MoS2-Co3S4 hollow polyhedrons derived from ZIF-67 towards hydrogen evolution reaction and hydrodesulfurization
复制标题
ZIF-67衍生的MoS2-Co3S4空心多面体用于析氢反应和加氢脱硫
DOI：
10.1016/j.ijhydene.2019.07.160
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发表时间：
2019
影响因子：
7.2
通讯作者：
Liang Xin
中科院分区：
文献类型：
--
作者：
Xie Yating;Chen Ligang;Jin Qiu;Yun Jimmy;Liang Xin
Co–Mo–S based catalysts have promising applications in both hydrogen evolution reaction (HER) and hydrodesulfurization (HDS). Herein, MoS2–Co3S4hollow polyhedrons have been successfully synthesized by the vulcanization of Mo doped ZIF-67. MoS2–Co3S4hollow polyhedrons show the superior HER and HDS catalytic activities to pure MoS2, Co3S4and MoS2–Co3S4nanoparticles prepared by the traditional coprecipitation methods, owing to the both morphology effect and synergistic effect between Co3S4and MoS2. DFT calculation studied the activation energies needed by MoS2and Co–Mo–S for HER and HDS, respectively. The required activation energies for C–S bond fracture and H2generation on Co–Mo–S structure are both obviously lower than that of MoS2structure. Our work reported a new method to synthesize Co–Mo–S catalysts with large surface area and numerous active sites, and further experimentally and theoretically proved Co–Mo–S structure had better catalytic activities for both HER and HDS.
