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高性能电催化析氧催化剂氧化钌的设计

卢学毅 王紫凌 蔡默航 卢侠

卢学毅, 王紫凌, 蔡默航, 卢侠. 高性能电催化析氧催化剂氧化钌的设计[J]. 华南师范大学学报(自然科学版), 2022, 54(3): 1-7. doi: 10.6054/j.jscnun.2022036
引用本文: 卢学毅, 王紫凌, 蔡默航, 卢侠. 高性能电催化析氧催化剂氧化钌的设计[J]. 华南师范大学学报(自然科学版), 2022, 54(3): 1-7. doi: 10.6054/j.jscnun.2022036
LU Xueyi, WANG Ziling, CAI Mohang, LU Xia. The Design of High-performance Ruthenium Oxide Catalyst for Electrocatalytic Oxygen Evolution Reaction[J]. Journal of South China normal University (Natural Science Edition), 2022, 54(3): 1-7. doi: 10.6054/j.jscnun.2022036
Citation: LU Xueyi, WANG Ziling, CAI Mohang, LU Xia. The Design of High-performance Ruthenium Oxide Catalyst for Electrocatalytic Oxygen Evolution Reaction[J]. Journal of South China normal University (Natural Science Edition), 2022, 54(3): 1-7. doi: 10.6054/j.jscnun.2022036

高性能电催化析氧催化剂氧化钌的设计

doi: 10.6054/j.jscnun.2022036
基金项目: 

中央高校基本科研业务费项目 19LGZD05

中央高校基本科研业务费项目 22QNTD2024

详细信息
    通讯作者:

    卢学毅, Email: luxueyi@mail.sysu.edu.cn

    卢侠,Email: luxia3@mail.sysu.edu.cn

  • 中图分类号: O646.5

The Design of High-performance Ruthenium Oxide Catalyst for Electrocatalytic Oxygen Evolution Reaction

  • 摘要: 采用高温固相法结合离子交换法制备了一种HRu4O8微米棒;利用X射线衍射仪、透射电子显微镜、扫描电子显微镜、X射线光电子能谱等对材料进行形貌和物相表征;采用线性扫描伏安、循环伏安、塔菲尔、计时电位等电化学方法研究了HRu4O8微米棒电解水氧析出反应的催化活性。结果表明:以RuO2纳米颗粒为前驱体制备HRu4O8,其电化学活性比表面积显著增大,展现出优异的氧析出催化反应活性,在10 mA/cm2电流密度下的过电位(仅为208 mV)低于RuO2纳米颗粒(276 mV)。另外,HRu4O8微米棒具有出色的稳定性,该研究为设计高活性的电解水催化剂提供了新思路。
  • 图  1  KRu4O8和HRu4O8的晶体结构及XRD图谱

    Figure  1.  The crystal structures and XRD patterns of KRu4O8 and HRu4O8

    图  2  KRu4O8和HRu4O8的表征

    Figure  2.  The characterization of KRu4O8 and HRu4O8

    图  3  HRu4O8的XPS谱以及Ru 3p与O 1s峰的拟合曲线

    Figure  3.  The XPS spectrum of HRu4O8 and the fitting curves of Ru 3p and O 1s peaks

    图  4  HRu4O8和RuO2的线性扫描伏安和Tafel斜率曲线

    Figure  4.  The LSV and Tafel profiles of HRu4O8 and RuO2

    图  5  HRu4O8和RuO2电极在不同扫速下的CV曲线及其拟合曲线

    Figure  5.  The CV and fitting curves of HRu4O8 and RuO2 electrodes at different scan rates

    图  6  HRu4O8和RuO2在10 mA/cm2电流密度下的计时电位曲线

    Figure  6.  The chronopotentiometry profiles of HRu4O8 and RuO2 at a current density of 10 mA/cm2

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出版历程
  • 收稿日期:  2022-03-28
  • 网络出版日期:  2022-07-29
  • 刊出日期:  2022-06-25

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