| 钼磷酸-纳米金修饰电极的制备及其电催化作用 |
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| 引用本文： | 张玉,王振平,赵燕荣,吴莹,CHEN Zhe-guan,WU Ying.钼磷酸-纳米金修饰电极的制备及其电催化作用[J].常熟理工学院学报,2009,23(2):59-62. |
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| 作者姓名： | 张玉 王振平 赵燕荣 吴莹 CHEN Zhe-guan WU Ying |
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| 作者单位： | 苏州大学材料和化学化工学部,江苏,苏州,215123 |
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| 基金项目： | 江苏省教育厅资助项目 |
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| 摘 要： | 以钼磷杂多酸作为光催化还原剂制备了表面负载钼磷杂多酸的纳米金溶胶（PMo12-NGs），并将此PMo12-NGs修饰到具PVP膜的玻碳电极表面，考察该修饰电极的电化学行为．实验结果表明，用光催化还原法可直接制备得到杂多酸负载量大且均匀性好的纳米金，由此制备的纳米金修饰电极具有PMo12的良好的电化学行为，且电化学响应和电极稳定性优于单独PMo12修饰电极，该修饰电极对IO3^-等有明显的电催化还原作用，其催化速率常数k可达1．34×10^5mol^-1·L·s^-1．
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| 关 键 词： | 光催化还原 钼磷杂多酸 纳米金 修饰电极 电催化作用 |
Preparation and Electrocatalysis of Gold Nanoparticles Supported with Heteropolyanions Modified Electrode |
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| ZHANG Yu,WANG Zhen-ping,ZHAO Yan-rong,CAO Xia,CHEN Zhe-guan,WU Ying.Preparation and Electrocatalysis of Gold Nanoparticles Supported with Heteropolyanions Modified Electrode[J].Journal of Changshu Institute of Technology,2009,23(2):59-62. |
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| Authors: | ZHANG Yu WANG Zhen-ping ZHAO Yan-rong CAO Xia CHEN Zhe-guan WU Ying |
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| Institution: | School of Chemistry;Chemical Engineering and Materials Science;Soochow University;Suzhou 215123;China |
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| Abstract: | Gold nanoparticles supported with Keggin heteropolyanions phosphododecamolybdates H_3PMo_(12)O_(40) (PMo~(12)-NGs) were prepared by simple photoreduction technique.PMo_(12)-NGs were successfully immobilized on the glassy carbon electrode surface with PVP film and a PMo_(12)-NG modified electrode(PMo_(12)-NG/PVP/GC) was obtained.The redox behaviour of PMo_(12)-NG/PVP/GC CME was discussed.The results showed that the PMo_(12)-NG/ PVP modified electrode exhibited high sensitivity,good reproducibility and excell... |
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| Keywords: | photoreduction phosphododecamolybdates gold nanoparticles modified electrode electrocatalysis |
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