| 还原态氧化石墨烯载Pd纳米催化剂对甲酸氧化的电催化性能 |
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| 引用本文： | 何卫,浦龙娟,周毅,黄庆红,邹志青,张校刚,杨辉.还原态氧化石墨烯载Pd纳米催化剂对甲酸氧化的电催化性能[J].中国科学:化学,2011(12):1805-1810. |
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| 作者姓名： | 何卫 浦龙娟 周毅 黄庆红 邹志青 张校刚 杨辉 |
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| 作者单位： | [1]南京航空航天大学材料科学与技术学院,南京210016 [2]中国科学院上海高等研究院,上海201210 |
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| 基金项目： | 国家重点基础研究发展计划（2012CB932800）; 国家自然科学基金（21073219）; 上海市科委（11DZ1200400）; 上海市浦东种子基金（PKZ2010-01）; 江苏省高校研究生科研创新计划（CX09B_076Z）; 中国科学院知识创新工程（12406、124091231）项目资助致谢本工作得到国家重点基础研究发展计划（2012CB932800）、国家自然科学基金（21073219）、上海市科委（11DZ1200400）、上海市浦东种子基金（PKZ2010.01）、江苏省高校研究生科研创新计划（CX09B_076Z）和中国科学院知识创新工程（12406、124091231）项目资助,特此致谢. |
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| 摘 要： | 采用改进的Hummers法氧化石墨后,对其超声剥离成氧化石墨烯水溶液,继之通过乙二醇还原Pd金属离子和氧化石墨烯,得到了还原态氧化石墨烯（RGO）负载Pd纳米催化剂,并用于甲酸的电催化氧化.透射电子显微镜和X射线衍射结果显示：负载于RGO上的Pd粒子平均粒径为3.8nm,其优先在RGO的褶皱和边缘处生长.电化学测试表明：RGO上残存的含氧基团降低了Pd催化剂受CO毒化的程度,Pd/RGO催化剂表现出了较商业化Pd/C更高的电催化活性和更好的稳定性.
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| 关 键 词： | 石墨烯 Pd纳米粒子 甲酸氧化 稳定性 |
Electrocatalytic performance of Pd nanoparticles supported on reduced graphene oxide nanosheets towards formic acid oxidation |
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| HE Wei,PU LongJuan,ZHOU Yi,HUANG QingHong,ZOU ZhiQing,ZHANG XiaoGang,YANG Hui.Electrocatalytic performance of Pd nanoparticles supported on reduced graphene oxide nanosheets towards formic acid oxidation[J].Scientia Sinica Chimica,2011(12):1805-1810. |
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| Authors: | HE Wei PU LongJuan ZHOU Yi HUANG QingHong ZOU ZhiQing ZHANG XiaoGang YANG Hui |
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| Institution: | 1 College of Material Science and Technology,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,China 2 Shanghai Advanced Research Institute,Chinese Academy of Sciences,Shanghai 201210,China ) |
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| Abstract: | Reduced graphene oxide nanosheets supported Pd nanoparticles（Pd/RGO） were prepared by a simultaneous reduction of Pd ions and graphene oxide（GO）,where GO was obtained through the oxidation of graphite by Hummers method and then ultrasonic exfoliation.Transmission electron microscopy and X-ray diffraction show that Pd nanoparticles were preferentially deposited onto the defects and wrinkles of RGO nanosheets with a mean particle size of 3.8 nm.The as-prepared Pd/RGO catalyst exhibited the higher electrocatalytic activity and better durability than commercial Pd/C towards formic acid oxidation,which could be ascribed to the higher Pd utilization and to the residual oxygen-containing group on RGO,promoting CO tolerance of the Pd/RGO catalyst. |
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| Keywords: | graphene nanosheets Pd nanoparticles formic acid oxidation durability |
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