多孔碳纳米纤维负载铜铂合金催化剂的制备及电催化析氢性能  

Preparation of Porous Carbon Nanofiber Loaded Copper-platinum Alloy Catalysts and Their Electrocatalytic Hydrogen Evolution Performance

作　　者：陈鑫 刘婧媛 于静 CHEN Xin;LIU Jingyuan;YU Jing(College of Materials Science and Chemical Engineering,Harbin Engineering University,Harbin 150001,China)

机构地区：[1]哈尔滨工程大学材料科学与化学工程学院,哈尔滨150001

出　　处：《高等学校化学学报》2024年第6期120-129,共10页Chemical Journal of Chinese Universities

基　　金：国家自然科学基金(批准号:51901055)资助。

摘　　要：通过静电纺丝和分阶段热处理方法,在多孔碳纳米纤维(PCNFs)上制备了一系列不同合金比例的PtCu纳米合金催化剂,研究了合金颗粒表面形貌和Cu-Pt-Cu结构对析氢反应(HER)的影响.结果表明,PtCu添加摩尔比为1∶2时可获得最佳析氢性能,在酸性条件下电流密度为10 mA/cm^(2)时,过电位为37 mV,拥有良好的长期稳定性.研究结果为PCNFs负载过渡金属与Pt的二元合金纳米催化剂的制备提供了一种新的方法.In this investigation,a series of PtCu nano-alloy catalysts with varying alloy ratios were prepared on porous carbon nanofibers(PCNFs)using electrostatic spinning and staged heat treatment methods.The effect of the geometrical morphology of the alloy particles and the Cu-Pt-Cu structure on the hydrogen evolution efficiency was discovered.The study determined that the most effective hydrogen evolution performance was achieved using a PtCu additive molar ratio of 1∶2 under acidic conditions,resulting in an overpotential of 37 mV at 10 mA/cm^(2) and exhibiting robust long-term stability.This research presents an innovative approach for producing binary alloy nanocatalysts of PCNFs impregnated with transition metals and Pt.

关 键 词：静电纺丝 多孔碳纤维 铜铂合金 析氢反应 

分 类 号：O643[理学—物理化学]