摘要
为了提高硼氢化物燃料电池金属催化剂的催化效率,以Al-Ag和Al-Ag-Ni为前驱体合金,通过脱合金法制得三维纳米多孔Ag/NiO复合催化剂。该催化剂在降低Ag使用量的前提下,凭借NiO的加入和结构优势,使其电催化氧化硼氢化钠性能显著提升。其中,Al_(90)Ag_(9)Ni_(1)前驱体合金脱合金后得到的纳米多孔Ag/NiO催化剂在电催化氧化硼氢化钠性能测试中性能最好,其峰值电流密度为158.72 mA·mg^(-1),催化性能相较纳米多孔Ag(116.88 mA·mg^(-1))提高了35%。该催化剂为研究提高硼氢化钠燃料电池催化剂活性和降低成本提供了一种可行的改进方案。
In order to improve the catalytic efficiency of metal catalysTSfor borohydride fuel cells,three-dimensional nano-porous Ag/NiO composite catalysTSwere prepared by dealloying method,with Al-Ag and Al-Ag-Ni as precursor alloys.On the premise of reducing the amount of Ag used,the catalyst has significantly improved iTSperformance of electrocatalytic sodium borohydride oxide by virtue of the addition of NiO and iTSstructural advantages.Among them,the nano porous Ag/NiO catalyst obtained after dealloying the precursor alloy Al_(90)Ag_(9)Ni_(1) has the best performance in the performance test of electrocatalytic oxidation of sodium borohydride,with a peak current density of 158.72 mA·mg^(-1),and a catalytic performance improvement of 35%compared to the nano porous Ag(116.88 mA·mg^(-1)).This catalyst provides a feasible improvement method for improving the activity of sodium borohydride fuel cell catalysTSand reducing costs.
作者
宋衍滟
王晨星
杨鹏飞
胡泳池
卢琳琳
刘毅
SONG Yanyan;WANG Chenxing;YANG Pengfei;HU Yongchi;LU Linlin;LIU Yi(School of Materials Science and Engineering/Xi’an Key Laboratory of Textile Composite Materials,Xi’an Polytechnic University,Xi’an 710048,China)
出处
《西安工程大学学报》
CAS
2023年第3期44-50,58,共8页
Journal of Xi’an Polytechnic University
基金
陕西省自然科学基础研究计划项目(2023-JC-QN-0616)
西安市碑林区科技计划项目(GX2143)
中国纺织工业联合会科技指导性计划项目(2021041)。
关键词
硼氢化物燃料电池
催化剂
脱合金
电催化性能
borohydride fuel cell
catalyzer
dealloying
electrocatalytic performance
