| 电化学还原脱氯用GC负载Pd-Ni电极的制备及表征 |
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| 引用本文： | 孙治荣,李保华,胡翔,石敏,葛慧,彭永臻.电化学还原脱氯用GC负载Pd-Ni电极的制备及表征[J].化工学报,2008,59(5):1271-1277. |
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| 作者姓名： | 孙治荣 李保华 胡翔 石敏 葛慧 彭永臻 |
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| 作者单位： | 北京工业大学北京市水质科学与水环境恢复工程重点实验室; 北京化工大学化学工程学院 ; |
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| 基金项目： | 北京市科技新星计划项目
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北京市属市管高校人才强教计划项目
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北京市教育委员会科技计划项目
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教育部留学回国人员科研启动基金 |
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| 摘 要： | 通过电沉积法在玻碳板（GC）电极上负载钯镍双金属颗粒，并利用正交实验对其进行循环伏安（CV）研究，得到Pd-Ni/GC电极的最佳制备条件为：Ni2+=8.5 mmol·L-1，Pd2+=3 mmol·L-1，pH=7.0，Jk=15 mA·cm-2，T=30 min。可以在-500 mV（以Hg/Hg2SO4为参比电极）左右获得-24.83 mA的氢吸附峰。用聚吡咯(PPy)修饰GC制备Pd-Ni/PPy/GC电极，CV结果表明，Pd-Ni/PPy/GC电极具有比Pd-Ni/GC电极更大的氢吸附峰值，可以在-500 mV（以Hg/Hg2SO4为参比电极）左右获得-32.33 mA的氢吸附峰。扫描电镜（SEM）分析表明，聚吡咯的修饰明显改变了Pd-Ni颗粒的沉积形态，使其沉积粒径更小，分散度更高。
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| 关 键 词： | Pd-Ni/GC电极 Pd-Ni/PPy/GC电极 循环伏安 |
| 文章编号： | 0438-1157(2008)05-1271-07 |
| 收稿时间： | 2007-9-30 |
| 修稿时间： | 2007年9月30日 |
Preparation and characterization of glassy carbon electrode modified by composite palladium-nickel film used in electrochemical reductive dechlorination |
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| SUN Zhirong,LI Baohua,HU Xiang,SHI Min,GE Hui,PENG Yongzhen.Preparation and characterization of glassy carbon electrode modified by composite palladium-nickel film used in electrochemical reductive dechlorination[J].Journal of Chemical Industry and Engineering(China),2008,59(5):1271-1277. |
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| Authors: | SUN Zhirong LI Baohua HU Xiang SHI Min GE Hui PENG Yongzhen |
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| Abstract: | The electrochemical deposition behavior of Pd-Ni bimetal on glassy carbon (GC) electrode was studied by means of cyclic voltammetry (CV) based on orthogonal experiments.The optimum preparation conditions of Pd-Ni/GC electrode were Ni2+=8.5 mmol·L-1, Pd2+=3 mmol·L-1, pH=7.0, Jk=15 mA·cm-2, and T=30 min.The hydrogen adsorption peak on Pd-Ni/GC electrode of -24.83 mA was obtained at about -500 mV (vs Hg/Hg2SO4).Pd-Ni/PPy/GC electrode modified by polypyrrole film was prepared.CV results revealed that the hydrogen adsorption peak of -32.33 mA was obtained at about -500 mV (vs Hg/Hg2SO4), which was larger than that on Pd-Ni/GC electrode.Scanning electron microscope (SEM) images revealed that PPy film changed the deposition configuration of Pd-Ni particles evidently.The diameters of Pd-Ni microparticles were smaller and the dispersion degree was higher. |
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| Keywords: | Pd-Ni/GC electrode Pd-Ni/PPy/GC electrode cyclic voltammetry |
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