| 铂纳米粒子电极上NO吸附和还原的CV及原位FTIR研究 |
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| 引用本文： | 程前,姜艳霞,曾冬梅,孙世刚. 铂纳米粒子电极上NO吸附和还原的CV及原位FTIR研究[J]. 电化学, 2009, 15(4): 392. DOI: 10.61558/2993-074X.2014 |
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| 作者姓名： | 程前 姜艳霞 曾冬梅 孙世刚 |
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| 作者单位： | 厦门大学固体表面物理化学国家重点实验室化学化工学院化学系; |
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| 基金项目： | 国家自然科学基金(20833005,20873116,20423002和20620130427); 科技部国际科技合作项目(2007DFC40440)资助 |
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| 摘 要： | 运用电化学循环伏安法(CV)和原位傅里叶变换红外反射光谱(in situ FTIRS)研究了酸性介质中铂纳米粒子电极(nm-Pt/GC)上NO吸附及其电催化还原过程.结果表明,NO分子的吸附是电催化还原的重要步骤.在铂纳米粒子电极上饱和吸附的NO存在两种不同键合强度的吸附态,其中弱吸附的NO(NOW)在0.60 V至-0.05 V电位区间还原生成N2O和NH4+;而强吸附的NO(NOS)则在-0.05 V至-0.15 V区间还原,其产物为NH+.
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| 关 键 词： | 铂纳米粒子 电催化 NO 吸附和还原 原位FITR反射光谱 |
| 收稿时间： | 2009-11-28 |
Cyclic Voltammetric and in-situ FTIR Spectroscopic Studies of Adsorption and Reduction of NO on Electrode of Pt Nanoparticles |
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| CHENG Qian,JIANG Yan-xia,ZENG Dong-mei,SUN Shi-gang. Cyclic Voltammetric and in-situ FTIR Spectroscopic Studies of Adsorption and Reduction of NO on Electrode of Pt Nanoparticles[J]. Electrochemistry, 2009, 15(4): 392. DOI: 10.61558/2993-074X.2014 |
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| Authors: | CHENG Qian JIANG Yan-xia ZENG Dong-mei SUN Shi-gang |
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| Affiliation: | CHENG Qian,JIANG Yan-xia,ZENG Dong-mei,SUN Shi-gang*(State Key Laboratory of Physical Chemistry of Solid Surfaces,Department of Chemistry,College of Chemistry , Chemical Engineering,Xiamen University,Xiamen 361005,Fujian,China) |
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| Abstract: | Adsorption and reduction of NO on electrode of Pt nanoparticles in acid solutions were studied by means of cyclic voltammetry(CV) and in-situ FTIR spectroscopy.The results indicated that the reduction of NO is a complicated process including the adsorption of NO on electrode surface.Two types of surface-bonded NO were determined on Pt nanoparticles.The weakly adsorbed NO was reduced between 0.6 V and-0.05 V,which yielded nitrous oxide(N2O) and ammonium(NH+4) as products;while the strongly bonded NO was redu... |
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| Keywords: | nanostructured Pt electrode NO adsorption and electrocatalytic reduction cyclic voltammetry in-situ FTIR spectroscopy |
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