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  • 研究员
  • 博士生导师
  • 硕士生导师
  • 教师英文名称:Yarong Zheng
  • 教师拼音名称:zhengyarong
  • 电子邮箱:
  • 所在单位:化学系
  • 职务:化学系系主任
  • 学历:研究生(博士)毕业
  • 办公地点:昇华楼301
  • 性别:
  • 学位:博士学位
  • 在职信息:在职
  • 毕业院校:中国科学技术大学
  • 学科:无机化学
    物理化学
    材料学
    应用化学
论文成果
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Doping-induced structural phase transition in cobalt diselenide enables enhanced hydrogen evolution catalysis
  • 发表刊物:Nat. Commun.
  • 摘要:Transition metal dichalcogenide materials have been explored extensively as catalysts to negotiate the hydrogen evolution reaction, but they often run at a large excess thermodynamic cost. Although activating strategies, such as defects and composition engineering, have led to remarkable activity gains, there remains the requirement for better performance that aims for real device applications. We report here a phosphorus-doping-induced phase transition from cubic to orthorhombic phases in CoSe2. It has been found that the achieved orthorhombic CoSe2 with appropriate phosphorus dopant (8 wt%) needs the lowest overpotential of 104 mV at 10 mA cm−2 in 1 M KOH, with onset potential as small as −31 mV. This catalyst demonstrates negligible activity decay after 20 h of operation. The striking catalysis performance can be attributed to the favorable electronic structure and local coordination environment created by this doping-induced structural phase transition strategy.
  • 备注:Ya-Rong Zheng, Ping Wu, Min-Rui Gao*, Xiao-Long Zhang, Fei-Yue Gao, Huan-Xin Ju, Rui Wu, Qiang Gao, Rui You, Wei-Xin Huang, Shou-Jie Liu, Shan-Wei Hu, Junfa Zhu, Zhenyu Li, and Shu-Hong Yu*
  • 卷号:9
  • 页面范围:2533
  • 是否译文:
  • 发表时间:2018-06-28
  • 发布期刊链接:https://www.nature.com/articles/s41467-018-04954-7