负载于刻蚀镍泡沫上钯纳米粒子作为乙醇氧化高性能电催化剂（英文）  

Pd Nanoparticles Supported on the Etched Ni Foams as High-Performance Electrocatalysts for Direct Ethanol Fuel Cells

作　　者：张翅 李成飞 李高仁 ZHANG Chi;LI Cheng-fei;LI Gao-ren(MOE Laboratory of Bioinorganic and Synthetic Chemistry,The Key Lab of Low-carbon Chemistry&Energy Conservation of Guangdong Province,School of Chemistry,Sun Yat-sen University,Guangzhou 510275,China)

机构地区：[1]中山大学化学学院生物无机与合成化学教育部重点实验室广东省低碳化学与过程节能重点实验室

出　　处：《电化学》2019年第5期571-578,共8页Journal of Electrochemistry

基　　金：supported by the National Basic Research Program of China ( 2015CB932304 and 2016YFA0202603);NSFC (91645104);Science and Technology Program of Guangzhou (201704030019);Natural Science Foundation of Guangdong Province (2016A010104004 and 2017A010103007);Guangdong Science and Technology Innovation Leading Talent Fund (2016TX03N187)

摘　　要：发展具有高催化活性和高稳定性的非Pt阳极催化剂目前仍面临着巨大的挑战.除了设计催化剂以外,设计合适的载体对提高电催化剂性能也具有重要意义.在这篇论文中,作者报导了一种以混合酸(HNO3+H2SO4+H3PO4+CH3COOH)腐蚀的镍泡沫负载Pd纳米粒子作为高性能电催化剂用于碱性条件下乙醇氧化.因具有开放孔结构、快速电解质渗透能力及快速的电荷传输性能,这些镍泡沫负载的Pd纳米粒子显示了很好的电催化活性和循环稳定性,显示了该材料在乙醇阳极氧化具有较好的应用前景.The development of non-Pt anode electrocatalysts with high activity and long-term durability at low cost for fuel cells still remains enormous challenge.Here we report the Pd nanoparticles supported on Ni foams etched by the mixed acids(HNO3+H2 SO4+H3 PO4+CH3 COOH)(Pd/ME-NF)that are designed and fabricated as high-performance electrocatalysts for ethanol oxidation in alkaline media.Because of the advantages of large open space,fast electrolyte penetration/diffusion and rapid electron transfer process,the Pd/ME-NF catalysts exhibited significantly improved electrocatalytic activity and durability compared with the commercial Pd/C catalysts.

关 键 词：PD纳米粒子 泡沫镍 混酸腐蚀 电催化剂 乙醇氧化物 

分 类 号：O646[理学—物理化学]