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人工晶体学报 ›› 2024, Vol. 53 ›› Issue (12): 2167-2172.

• 研究论文 • 上一篇    下一篇

基于混合配体的镍(Ⅱ)MOF基电催化剂的合成、结构表征及性能研究

潘会宾1,2, 乔得聪2, 王嘉欣2, 高霞3, 卢久富2   

  1. 1.商洛职业技术学院公共课教学部,商洛 726000;
    2.陕西理工大学催化基础与应用重点实验室,化学与环境科学学院,汉中 723001;
    3.商洛学院化学工程与现代材料学院,商洛 726000
  • 收稿日期:2024-07-22 出版日期:2024-12-15 发布日期:2024-12-20
  • 通信作者: 卢久富,博士,教授。E-mail:jiufulu@163.com
  • 作者简介:潘会宾(1983—),男,陕西省人,讲师。E-mail:371648621@qq.com
  • 基金资助:
    国家自然科学基金青年科学基金(22003037)

Synthesis, Structure Characterization and Properties of Nickel (Ⅱ) MOF-Based Electrocatalyst Based on Mixed Ligands

PAN Huibin1, QIAO Decong2, WANG Jiaxin2, GAO Xia3, LU Jiufu2   

  1. 1. Department of Public Education, Shangluo Vocational & Technical College, Shangluo 726000, China;
    2. Shaanxi Province Key Laboratory of Catalysis, College of Chemical and Environment Science, Shaanxi University of Technology, Hanzhong 723001, China;
    3. School of Chemical Engineering & Modern Materials, Shangluo University, Shangluo 726000, China
  • Received:2024-07-22 Online:2024-12-15 Published:2024-12-20

摘要: 在溶剂热条件下,以Ni(NO3)2·6H2O为金属源、五甲基间苯二甲酸(H2MIP)配体和1,3-双(2-甲基-1H-咪唑-1-基)丙烷(BMIP)为混合配体,构筑了一例新型Ni(Ⅱ)有机骨架材料{[Ni4(MIP)4(BMIP)3]·DMF}n(SNUT-36)。X射线单晶衍射结果表明:SNUT-36呈现一个4,6链接双节点的二重穿插的三维骨架结构,拓扑分析数据为(32·45·5·67)(34·47·5·63)。进一步通过粉末X射线衍射、红外光谱、热重分析等手段对得到的配合物进行表征。此外,化学测试结果显示,SNUT-36达到20 mA·cm-2时的过电位为430 mV,表明其具有良好的电催化性能,Tafel斜率为89 mV·dec-1,也证实了其对提高析氧反应速率具有良好的效果。

关键词: Ni(Ⅱ)有机骨架材料, 溶剂热, 电催化, 混合配体, 析氧反应

Abstract: Under solvothermal conditions, using Ni(NO3)2·6H2O as the metal source, pentamethy lisophthalic acid (H2MIP) ligand and 1,3-bis(2-methyl-1H-imidazol-1-yl)propane (BMIP) as mixed ligands, a new Ni(Ⅱ) organic framework material, {[Ni4(MIP)4(BMIP)3]·DMF}n (SNUT-36), was constructed. X-ray single crystal diffraction analysis shows that SNUT-36 presents a binodal (4,6) connected double-interpenetrated three-dimensional skeleton structure with topological analysis data of (32·45·5·67)(34·47·5·63). The obtained complex was further characterized by powder X-ray diffraction, infrared spectroscopy, thermogravimetric analysis and other means. In addition, the electrochemical test results show that SNUT-36 achieve an overpotential of 430 mV at 20 mA·cm-2, indicating its good electrocatalytic performance. The Tafel slope of 89 mV·dec-1 also confirmed its good effect on improving the oxygen evolution reaction rate.

Key words: Ni(Ⅱ) organic framework, solvothermal, electro-catalysis, mixed ligand, oxygen evolution reaction

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