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张晓伟,路金林,李继东,王一雍,亢淑梅,韩 露.电沉积制备PdxCoy/rGO纳米复合催化剂及其对甲酸电催化性能研究[J].稀有金属材料与工程(英文),2018,47(12):3893~3898.[Zhang Xiaowei,Lu Jinin,Li Jidong,Wang Yiyong,Kang Shumei and Han Lu.PdxCoy/rGO nanocomposite electrocatalysts synthesized by electrodeposition for formic electrooxidation in acid medium[J].Rare Metal Materials and Engineering,2018,47(12):3893~3898.]
PdxCoy/rGO nanocomposite electrocatalysts synthesized by electrodeposition for formic electrooxidation in acid medium
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Received:March 20, 2018  Revised:April 20, 2018
DOI:
Key words: Catalyst support  Electrodeposition  Electrocatalysis  Fuel cell  Graphene
Foundation item:国家自然科学基金(51504133,51774177),辽宁省自然科学基金(20170540468,20170540465),辽宁省“百千万人才工程”项目(2017-104),辽宁科技大学研究生教育改革与科技创新创业项目(LKDYC201712),辽宁科技大学创新团队项目(2016TD05)
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Zhang Xiaowei,Lu Jinin,Li Jidong,Wang Yiyong,Kang Shumei and Han Lu  
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Abstract:
      Abstract: In this work, PdxCoy/rGO nanocomposite catalysts with different Pd:Co ratios were prepared by electrodeposition. The structure and morphology of the prepared catalysts were characterized by Field emission scanning electron microscope, X-ray energy dispersive spectroscopy and Fourier transform infrared. The results indicate that the compositions of the as-synthesized electrocatalysts are close to the metal ion concentration ratios in the precursors. The metal particle sizes of the PdxCoy/rGO binary electrocatalys are smaller than the particle sizes of Pd/rGO and Co/rGO monometallic electrocatalysts. The size distributions of the PdxCoy/rGO binary electrocatalys are more even in comparison with those of the Pd/rGO and Co/rGO monometallic electrocatalysts. The Pd1Co3/rGO nanocomposite catalyst exhibits the largest electrochemical active surface area in 0.5 M H2SO4 electrolyte, and demonstrates the highest electrocatalytic activity and the best stability for formic acid electrooxidation. The results indicates that the as prepared Pd1Co3/rGO nanocomposite catalyst by electrodeposition is very promising for application in direct formic acid fuel cell.