| 修饰金电极对甲烷的电催化氧化 |
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| 引用本文： | 张利琴, 张彦, 董川. 修饰金电极对甲烷的电催化氧化[J]. 环境工程学报, 2016, 10(4): 1919-1923. doi: 10.12030/j.cjee.20160454 |
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| 作者姓名： | 张利琴 张彦 董川 |
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| 作者单位： | 1.山西省环境监控中心, 太原 030024; 2.山西大学环境科学与工程研究中心, 太原 030006 |
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| 基金项目： | 国家自然科学基金资助项目(50534100) |
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| 摘 要： | 采用连续电位扫描法对含有Pd(Ⅱ)离子的溶液进行多次循环电位扫描,将钯沉积到金电极、多壁碳纳米管(WCNTs)-Nafion修饰的金电极上,制备了钯纳米、钯纳米-WCNTs修饰的金电极(Pd/Au、Pd-WCNTs/Au电极),利用循环伏安法、交流阻抗法对修饰电极的电化学特性进行了表征,利用差分脉冲法及计时电流法分别研究了Pd/Au电极、Pd-WCNTs/Au电极、Au电极及Pb电极对甲烷电氧化的催化活性,并研究了电极的稳定性和重现性,结果表明,Pd-WCNTs/Au电极对甲烷具有最高的电催化活性,重现性好、稳定性高。
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| 关 键 词： | 甲烷 金电极 钯 循环伏安法 电催化氧化 |
| 收稿时间： | 2015-03-27 |
Electro-catalytic-oxidation of methane on modified gold electrode |
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| Zhang Liqin, Zhang Yan, Dong Chuan. Electro-catalytic-oxidation of methane on modified gold electrode[J]. Chinese Journal of Environmental Engineering, 2016, 10(4): 1919-1923. doi: 10.12030/j.cjee.20160454 |
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| Authors: | Zhang Liqin Zhang Yan Dong Chuan |
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| Affiliation: | 1.Center of Shanxi Environmental Monitor, Taiyuan 030024, China; 2.Research Center of Environmental Science and Engineering, Shanxi University, Taiyuan 030006, China |
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| Abstract: | Pd nanoparticles and Pd nanoparticle-WCNT modified Au electrodes were prepared by a cyclic potential sweep in a solution containing Pd(II) ions with a Au electrode and a WCNT-Nafion modified electrode.Voltammetric characterization of the electrodes was carried out by cyclic voltammetry (CV) and electrochemical impedance.Different pulse voltammograms and amperometric I-T curves were used to study the electro-catalytic-oxidation of methane on Pd-WCNT/Au, Pb/Au, Pb, and Au electrodes.The highest electro-catalytic activity, satisfactory reproducibility, and stability were observed on the Pd-WCNT/Au electrode. |
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| Keywords: | methane Au-electrode Pd cyclic voltammetry electro-catalytic-oxidation |
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