| 炭载体改性对炭载Pd催化剂电催化性能的影响 |
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| 引用本文： | 丁良鑫,王士瑞,郑小龙,陈煜,陆天虹,曹殿学,唐亚文. 炭载体改性对炭载Pd催化剂电催化性能的影响[J]. 物理化学学报, 2010, 26(5): 1311-1316. DOI: 10.3866/PKU.WHXB20100521 |
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| 作者姓名： | 丁良鑫 王士瑞 郑小龙 陈煜 陆天虹 曹殿学 唐亚文 |
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| 作者单位： | School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, P. R. China; College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China |
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| 基金项目： | 国家高技术研究发展计划(863)，国家自然科学基金 |
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| 摘 要： | 研究了硝酸和氨水改性处理对活性炭表面基团、炭载Pd纳米粒子的形态及其对甲酸氧化电催化性能的影响.傅里叶变换红外(FT-IR)光谱、X射线光电子能谱(XPS)及Boehm滴定结果表明,硝酸和氨水处理分别增加了活性炭表面含氧基团和含氮基团的含量.透射电镜(TEM)及电化学测试显示,活性炭经硝酸处理后,表面负载的Pd粒子粒径降低,催化剂对甲酸氧化活性和稳定性提高.进一步用氨水处理后,Pd粒子的粒径没有明显变化,但催化剂中Pd0的含量增加,催化剂性能进一步提高.
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| 关 键 词： | 活性炭 炭载Pd催化剂 硝酸处理 氨水处理 甲酸氧化 |
| 收稿时间： | 2009-10-09 |
| 修稿时间： | 2010-04-01 |
Effect of Carbon Modification on Electrocatalytic Performance of Carbon Supported Pd Catalysts |
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| DING Liang-Xin WANG Shi-Rui ZHENG Xiao-Long CHEN Yu, LU Tian-Hong CAO Dian-Xue TANG Ya-Wen. Effect of Carbon Modification on Electrocatalytic Performance of Carbon Supported Pd Catalysts[J]. Acta Physico-Chimica Sinica, 2010, 26(5): 1311-1316. DOI: 10.3866/PKU.WHXB20100521 |
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| Authors: | DING Liang-Xin WANG Shi-Rui ZHENG Xiao-Long CHEN Yu LU Tian-Hong CAO Dian-Xue TANG Ya-Wen |
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| Affiliation: | School of Chemistry and Environmental Science, Nanjing Normal University, Nanjing 210097, P. R. China; College of Material Science and Chemical Engineering, Harbin Engineering University, Harbin 150001, P. R. China |
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| Abstract: | The effect of carbon modification on electrocatalytic performance of carbon supported Pd catalysts was investigated.Fourier transform infrared(FT-IR) spectrometer,X-ray photoelectron spectroscopy(XPS) and Boehm titration measurements demonstrate that the contents of O-containing groups and N-containing groups on the activated carbon surface increase via HNO3 and NH4OH treatment.Transmission electron microscope(TEM) and electrochemical measurements indicate that the treatment of activated carbon with HNO3 ca... |
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| Keywords: | Activated carbon Carbon supported Pd catalyst Nitric acid treatment Ammonia treatment Formic acid oxidation |
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