高等学校化学学报 ›› 2026, Vol. 47 ›› Issue (10): 20260141.doi: 10.7503/cjcu20260141

• 物理化学 • 上一篇    下一篇

普鲁士蓝类似物衍生FeSe2/CoSe2复合材料的制备及在碱性电解液中的高效电催化析氢性能

鲁婷, 刘璐, 王蕾斐, 杨阳, 刘泽昌, 王浚韬, 云斯宁()   

  1. 西安建筑科技大学材料科学与工程学院, 西安 710055
  • 收稿日期:2026-04-03 出版日期:2026-10-10 发布日期:2026-05-25
  • 通讯作者: 云斯宁 E-mail:yunsining@xauat.edu.cn
  • 基金资助:
    国家自然科学基金(51672208);陕西省自然科学基金重点项目(2019JZ-20);陕西省重点研发计划国际合作重点项目(2019KWZ-03);陕西省重点科技创新团队项目(2022TD-34)

Preparation of Prussian Blue Analogue-derived FeSe2/CoSe2 Composites and Their Efficient Alkaline Electrocatalytic Hydrogen Evolution Performance

LU Ting, LIU Lu, WANG Leifei, YANG Yang, LIU Zechang, WANG Juntao, YUN Sining()   

  1. School of Materials Science and Engineering,Xi’an University of Architecture and Technology,Xi’an 710055,China
  • Received:2026-04-03 Online:2026-10-10 Published:2026-05-25
  • Contact: YUN Sining E-mail:yunsining@xauat.edu.cn
  • Supported by:
    the National Natural Science Foundation of China(51672208);the Key Program for Nature Science Foundation of Shaanxi Province, China(2019JZ-20);the Key Program for International S&T Cooperation Projects of Shaanxi Province, China(2019KWZ-03);the Program of Key Science and Technology Innovation Team of Shaanxi Province, China(2022TD-34)

摘要:

通过共沉淀法结合硒化策略合成了普鲁士蓝类似物(PBA)衍生过渡金属硒化物(FeSe2, CoSe2和 FeSe2/CoSe2)碳基复合材料, 并系统评估了3种催化剂在碱性电解液中作为析氢反应(HER)阴极材料的催化活性和稳定性. 采用XRD, SEM和XPS对合成的催化剂进行了物相分析和形貌表征. 结果表明, FeSe2/CoSe2材料表现出最优异的电催化析氢性能, 在10 mA/cm2电流密度下的过电位仅为118 mV, Tafel斜率仅为86 mV/dec, 催化性能优于单一相的FeSe2和CoSe2. FeSe2/CoSe2性能增强主要归因于FeSe2和CoSe2界面间的强电子耦合作用优化了其电子结构. 此外, FeSe2/CoSe2催化剂在经过8 h的稳定性测试后, 过电位保持率仍达到91.74%; 并且3种催化剂经过1000次CV循环后的LSV曲线几乎不变, 表现出良好的电化学稳定性.

关键词: 电解水析氢反应, 过渡金属硒化物, 电催化, 电极材料, 普鲁士蓝类似物

Abstract:

Using a coprecipitation method combined with a selenization strategy, Prussian blue analogue(PBA) derived transition metal selenides-based(FeSe2, CoSe2 and FeSe2/CoSe2) composites were synthesized, and the catalytic activity and stability of these three catalysts as cathodes for the hydrogen evolution reaction(HER) in alkaline electrolytes were systematically evaluated. The synthesized catalysts were characterized by XRD, SEM, and XPS to determine their phase composition, morphology, and surface chemistry. The results indicate that the FeSe2/CoSe2 composite exhibits the most outstanding electrocatalytic hydrogen evolution performance, with an overpotential of only 118 mV at 10 mA/cm2 and a Tafel slope of only 86 mV/dec. FeSe2/CoSe2 catalytic performance surpasses that of the single-phase FeSe2 and CoSe2, owing to the strong electronic coupling at the FeSe2/CoSe2 interface, which optimizes the electronic structure of FeSe2/CoSe2. After an 8 h chronopotentiometry test, the FeSe2/CoSe2 catalyst exhibited an overpotential retention rate of 91.74%, and the linear sweep voltammetry curves of all three catalysts remained nearly unchanged after 1000 cyclic voltammetry cycles.

Key words: Hydrogen evolution reaction, Transition metal selenide, Electrocatalysis, Electrode material, Prussian blue analogue

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