Enhanced Water Electrolysis by Pd/WS<sub>2</sub> Nanosheets Composite

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Abstract Thin-Layer WS₂ nanosheets were obtained through a modified Li-intercalation method, followed by an In situ reduction of Pd nanoparticles to prepare the Pd/WS₂ composite. The XRD and TEM tests showed that uniform Pd nanoparticles were successfully deposited on the surfaces of layered WS₂ nanosheets. The HER performance of the Pd/WS₂ nanosheets composite was studied through the linear sweep voltammetry (LSV) method. The results showed the composite has an onset overpotential of 155 mV and a Tafel slope of 121.79 mV·dec^-1, which is much improved from the WS₂ nanosheets or Pd nanoparticles alone, and better than the commercial Pd/C catalyst as well. Cyclic voltammetry (CV) test showed after 1 000 cycles in acidic solution, the current density made little changes, which demonstrated the stability of the composite. In summary, we describe a simple method to obtain the Pd/WS₂ nanosheet composite. Further investigations show an improved HER catalytic activity with excellent stability, which indicates a promising application in the HER industry.

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	Articles by authors
	Cai Di
	Zhu Yuanzhi
	Zhai Tingting
	Zhou Zhou
	Ding Chaoying
	Fan Xiaobin

Keywords： Pd/WS₂ nanosheets； water electrolysis； hydrogen evolution

Received 2017-04-20;

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Cai Di, Zhu Yuanzhi, Zhai Tingting, Zhou Zhou, Ding Chaoying, Fan Xiaobin.Enhanced Water Electrolysis by Pd/WS₂ Nanosheets Composite[J] Chemcial Industry and Engineering, 2019,V36(2): 48-52

[1] Turner J A. A realizable renewable energy future[J]. Science, 1999, 285(5428):687-689
[2] Thomas J G N. Kinetics of electrolytic hydrogen evolution and the adsorption of hydrogen by metals[J]. Transactions of the Faraday Society, 1961, 57:1603-1611
[3] Greeley J, Jaramillo T F, Bonde J, et al. Computational high-throughput screening of electrocatalytic materials for hydrogen evolution[J]. Nat Mater, 2006, 5(11):909-913
[4] Zou X, Zhang Y. Noble metal-free hydrogen evolution catalysts for water splitting[J]. Chemical Society Reviews, 2015, 44(15):5148-5180
[5] 王宏智, 张晓振, 黄波, 等. 碳毡基体上电沉积Ni-Mo合金及其催化析氢性能[J]. 化学工业与工程, 2017, 34(1):53-59 Wang Hongzhi, Zhang Xiaozhen, Huang Bo, et al. Electrodeposition of Ni-Mo alloy from ionic liquids and its catalytic properties for hydrogen evolution[J]. Chemcial Industry and Engineering, 2017, 34(1):53-59(in Chinese)
[6] Tsai C, Chan K R, Norskov J K, et al. Theoretical insights into the hydrogen evolution activity of layered transition metal dichalcogenides[J]. Surf Sci, 2015, 640:133-140
[7] Li Y, Wang H, Xie L, et al. MoS₂ nanoparticles grown on graphene:An advanced catalyst for the hydrogen evolution reaction[J]. Journal of the American Chemical Society, 2011, 133(19):7296-7299
[8] Hinnemann B, Moses P G, Bonde J, et al. Biomimetic hydrogen evolution:MoS₂ nanoparticles as catalyst for hydrogen evolution[J]. Journal of the American Chemical Society, 2005, 127(15):5308-5309
[9] Zong X, Yan H, Wu G, et al. Enhancement of photocatalytic H₂ evolution on CdS by loading MOS₂ as cocatalyst under visible light irradiation[J]. Journal of the American Chemical Society, 2008, 130(23):7176-7177
[10] Xiang Q, Yu J, Jaroniec M. Synergetic effect of MoS₂ and graphene as cocatalysts for enhanced photocatalytic H₂ production activity of TiO₂ nanoparticles[J]. Journal of the American Chemical Society, 2012, 134(15):6575-6578
[11] 秦瑞杰, 张占男, 王宇新. 石墨烯负载MoS₂-Ni₂P纳米颗粒作为析氢电催化剂[J]. 化学工业与工程, 2017, 34(2):21-26 Qin Ruijie, Zhang Zhannan, Wang Yuxin. MoS₂-Ni₂P nanoparticles supported on graphene as electrocatalyst towards hydrogen evolution reaction[J]. Chemcial Industry and Engineering, 2017, 34(2):21-26(in Chinese)
[12] Duan J, Chen S, Chambers B A, et al. 3D WS₂ nanolayers@heteroatom-doped graphene films as hydrogen evolution catalyst electrodes[J]. Advanced Materials, 2015, 27(28):4234-4241
[13] Lukowski M A, Daniel A S, English C R, et al. Highly active hydrogen evolution catalysis from metallic WS₂ nanosheets[J]. Energy & Environmental Science, 2014, 7(8):2608-2613
[14] Yang J, Voiry D, Ahn S J, et al. Two-Dimensional hybrid nanosheets of tungsten disulfide and reduced graphene oxide as catalysts for enhanced hydrogen evolution[J]. Angewandte Chemie International Edition, 2013, 52(51):13751-13754
[15] Jin J, Zhu Y, Liu Y, et al. CoP nanoparticles combined with WS₂ nanosheets as efficient electrocatalytic hydrogen evolution reaction catalyst[J]. International Journal Of Hydrogen Energy, 2017, 42(7):3947-3954
[16] Wang X, Gan X, Hu T, et al. Noble-Metal-Free hybrid membranes for highly efficient hydrogen evolution[J]. Advanced Materials, 2017, 29(4):1603617-1603625
[17] Li H, Tsai C, Koh A L, et al. Activating and optimizing MoS₂ basal planes for hydrogen evolution through the formation of strained sulphur vacancies[J]. Nat Mater, 2016, 15(1):48-53
[18] Cao S, Chen Y, Wang C, et al. Spectacular photocatalytic hydrogen evolution using metal-phosphide/CdS hybrid catalysts under sunlight irradiation[J]. Chemical Communications, 2015, 51(41):8708-8711
[19] Chhowalla M, Shin H S, Eda G, et al. The chemistry of two-dimensional layered transition metal dichalcogenide nanosheets[J]. Nat Chem, 2013, 5(4):263-275