摘要
采用改进的浸渍还原法在低温下制备了Pd_2Ni_3/C纳米催化剂.TEM图像显示,催化剂的粒径较小,且均匀分散在碳载体表面;XRD图谱可以看出,Pd(111)衍射峰由于Ni的掺杂效应发生宽化,说明采用这种方法合成的Pd-Ni/C催化剂粒径较小;电化学测试表明,Pd_2Ni_3/C具有较高的甲酸电催化活性和稳定性.
Carbon supported well-dispersed Pd-Ni composite nanocatalysts are synthesized by an improved impregnation reducation method in ice water bath environment. TEM images show that Pd-Ni nanoparticles are uniformly dispersion on carbon black. XRD analysis is conducted to broaden in Pd（ Ⅲ） diffraction peak for Pd2Ni3/C ,demonstrating that Pd2Ni3 possesses smaller particle size due to Ni doping effect. Electrochemical measurement shows that Pd2Ni3/C has higher catalyt- ic activity and stability towards HCOOH electrooxidation compared to Pd/C.
作者
李巧霞
李云华
王龙龙
赵亚飞
LI Qiaoxia LI Yunhua WANG Longlong ZHAO Yafei(School of Environmental and Chemical Engineering, Shanghai University of Electric Power, Shanghai 200090, Chin)
出处
《上海电力学院学报》
CAS
2017年第2期152-156,共5页
Journal of Shanghai University of Electric Power
基金
国家自然科学基金(21103107)
上海市科学技术委员会重点项目(10160502300)
关键词
直接甲酸燃料电池
Pd基催化剂
浸渍还原法
催化活性
催化稳定性
direct formic acid fuel cell
Pd-based catalysts
impregnation reducation method
catalytic activity
catalytic stability.
