MoS2 nanosheets array on carbon cloth as a 3D electrode for highly efficient electrochemical hydrogen evolution
MoS2 nanosheets array on carbon cloth as a 3D electrode for highly efficient electrochemical hydrogen evolution
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DOI：
10.1016/j.carbon.2015.10.071
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发表时间：
2016-03
期刊：
影响因子：
10.9
通讯作者：
Zhongcheng Xiang;Zhong-Shi Zhang;Xijin Xu;Qin Zhang;Chengwu Yuan
中科院分区：
文献类型：
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作者：
Zhongcheng Xiang;Zhong-Shi Zhang;Xijin Xu;Qin Zhang;Chengwu Yuan
我们报告了一种在碳布（2H-MoS2NS/CC）上低温水热制造 2H-MoS2 纳米片阵列的简便方法。使用锂嵌入从原始 2H–MoS2NS/CC 制备 1T-MoS2 片。 X射线光电子能谱（XPS）和拉曼光谱证实了从三方棱柱（2H-MoS2）到八面体配位Mo（1T-MoS2）的局部相变。然后，我们使用典型的三电极设置在室温下研究了 Li–MoS2NS/CC 作为 3D 集成电极在 0.5 M H2SO4 中的 HER 活性。结果在酸性介质中表现出优异的催化活性。 Li–MoS2NS/CC 3D 电极分别需要 97 和 132 mV 的过电势才能接近 10 和 100 mA cm−2，这比之前报道的值要小。 Li–MoS2NS/CC 电极的这种性能表明它在实际应用中可能具有广阔的前景。
We report a facile approach to the low-temperature hydrothermal fabrication of a 2H–MoS2nanosheets array on carbon cloth (2H–MoS2NS/CC). Li-intercalation was used to prepare 1T-MoS2sheets from pristine 2H–MoS2NS/CC. X-ray photoelectron spectroscopy (XPS) and Raman spectra confirmed the local phase transitions from trigonal prismatic (2H–MoS2) into octahedrally coordinated Mo (1T-MoS2). Then, we investigated the HER activity of Li–MoS2NS/CC as a 3D integrated electrode in 0.5 M H2SO4at room temperature using a typical three-electrode setup. The results exhibited excellent catalytic activity in acidic media. The Li–MoS2NS/CC 3D Electrode needs overpotentials of 97 and 132 mV to approach 10 and 100 mA cm−2, respectively, which are smaller than the previously reported values. This performance of the Li–MoS2NS/CC electrode suggests that it may hold great promise for practical applications.