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WS2/C复合材料的制备及其电催化析氢性能研究

万磊 史春薇 余宗宝 武宏大 肖伟 耿忠兴 任铁强 杨占旭

万磊, 史春薇, 余宗宝, 武宏大, 肖伟, 耿忠兴, 任铁强, 杨占旭. WS2/C复合材料的制备及其电催化析氢性能研究[J]. 燃料化学学报. doi: 10.1016/S1872-5813(21)60078-6
引用本文: 万磊, 史春薇, 余宗宝, 武宏大, 肖伟, 耿忠兴, 任铁强, 杨占旭. WS2/C复合材料的制备及其电催化析氢性能研究[J]. 燃料化学学报. doi: 10.1016/S1872-5813(21)60078-6
WAN Lei, SHI Chun-wei, YU Zong-bao, WU Hong-da, XIAO Wei, GENG Zhong-xing, REN Tie-qiang, YANG Zhan-xu. Preparation of WS2/C composite material and its electrocatalytic hydrogen evolution performance[J]. Journal of Fuel Chemistry and Technology. doi: 10.1016/S1872-5813(21)60078-6
Citation: WAN Lei, SHI Chun-wei, YU Zong-bao, WU Hong-da, XIAO Wei, GENG Zhong-xing, REN Tie-qiang, YANG Zhan-xu. Preparation of WS2/C composite material and its electrocatalytic hydrogen evolution performance[J]. Journal of Fuel Chemistry and Technology. doi: 10.1016/S1872-5813(21)60078-6

WS2/C复合材料的制备及其电催化析氢性能研究

doi: 10.1016/S1872-5813(21)60078-6
基金项目: 国家自然科学基金(21671092),辽宁省“兴辽英才”创新领军人才项目(XLYC1802057),辽宁省-沈阳材料科学国家研究中心联合研发基金(2019010280-JH3/301)和抚顺英才计划青年拔尖人才(FSYC202007001)资助
详细信息
    通讯作者:

    Tel: 13841322030,E-mail: zhanxuy@126.com

  • 中图分类号: O646

Preparation of WS2/C composite material and its electrocatalytic hydrogen evolution performance

Funds: The project was supported by the National Natural Science Foundation of China (21671092), Liaoning Province "Xing Liao Talents" Innovation Leading Talent Project (XLYC1802057), Liaoning Province-Shenyang National Research Center for Materials Science Joint R&D Fund Project (2019010280-JH3/301) and Young top talents of Fushun talent plan(FSYC202007001)
  • 摘要: 以H2WO4和EDA为前驱体,通过机械搅拌与原位固相热解,得到WO3/C中间体,通过高温硫化得到WS2/C复合材料。通过X射线衍射(XRD)、扫描电子显微镜(SEM)、透射电子显微镜(TEM)、X射线光电子能谱(XPS)等仪器分析方法对制备的WS2/C复合材料结构和形貌等进行表征。同时对材料进行了电催化稳态极化曲线(LSV)、塔菲尔斜率(Tafel)、循环稳定性(CP)和电化学阻抗(PEIS)和电化学活性表面积(ECSA)测试,分析了催化剂的电催化性能。结果表明,当WS2/C复合材料的电流密度为10 mA/cm2时,过电位为179 mV,Tafel斜率为98 mV/dec。
  • 图  1  WS2/C复合材料的制备流程图

    Figure  1  WS2/C composite preparation flow chart

    图  2  (a) H2WO4和H2WO4/EDA材料;(b) WO3/C材料和不同煅烧温度的WS2/C复合材料XRD谱图

    Figure  2  (a) H2WO4 and H2WO4/EDA materials; (b) XRD patterns of WO3/C materials and WS2/C composites at different calcination temperatures

    图  3  不同煅烧温度的WS2/C的SEM照片:(a) WS2/C-600;(b) WS2/C-700;(c) WS2/C-800

    Figure  3  SEM photos of WS2/C at different calcination temperatures: (a) WS2/C-600, (b) WS2/C-700, (c) WS2/C-800

    图  4  ((a)−(c)):H2WO4材料、H2WO4/EDA和WS2/C-700复合材料的SEM照片;(d) :WS2/C-700复合材料的TEM照片;(e):WS2/C-700复合材料的高分辨率TEM照片;(f):WS2/C-700复合材料的元素EDX mapping分布

    Figure  4  ((a)−(c)): SEM pictures of H2WO4 materials, H2WO4/EDA and WS2/C-700 composites, (d): TEM pictures of WS2/C-700 composites, (e): high resolution TEM of WS2/C-700 composites photos, (f): EDX mapping distribution of elements of WS2/C-700 composite

    图  5  WS2/C-700复合材料的XPS谱图:(a)总谱、(b)钨谱、(c)硫谱和(d)碳谱

    Figure  5  XPS spectrum of WS2/C-700 composite material: (a) total spectrum, (b) tungsten spectrum, (c) sulfur spectrum, (d) carbon spectrum

    图  6  WS2/C-700复合材料的Raman谱图

    Figure  6  Raman spectrum of WS2/C-700 composite

    图  7  不同煅烧温度下WS2/C复合材料的孔径分布(a)和氮吸附-脱附等温曲线(b)

    Figure  7  Pore size distribution diagram (a) and nitrogen adsorption isotherm diagram (b) of WS2/C composites at different calcination temperatures

    图  8  WS2/C-600、WS2/C-700和WS2/C-800复合材料的极化曲线(a)和Tafel曲线(b)

    Figure  8  Polarization curve (a) and Tafel curve (b) of WS2/C-600, WS2/C-700 and WS2/C-800 composite materials

    图  9  WS2/C-600、WS2/C-700和WS2/C-800复合材料的电化学阻抗谱

    Figure  9  Electrochemical impedance spectroscopy of WS2/C-600, WS2/C-700 and WS2/C-800 composite materials

    图  10  (a): WS2/C-600、WS2/C-700和WS2/C-800复合材料在2000圈循环伏安测试前后的极化曲线;(b): WS2/C-700复合材料在0.5 mol/L H2SO4电解液中的恒电流曲线

    Figure  10  (a): Polarization curves of WS2/C-600, WS2/C-700 and WS2/C-800 composites before and after 2000 cycles of cyclic voltammetry; (b): Constant current curve of WS2/C-700 composite in 0.5 mol/L H2SO4 electrolyte

    图  11  WS2/C-600、WS2/C-700和WS2/C-800复合材料在不同扫速下的双电层电容

    Figure  11  Electric double layer capacitors of WS2/C-600, WS2/C-700 and WS2/C-800 composite materials at different scanning speeds

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  • 网络出版日期:  2021-04-19

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