钴铂合金薄膜的循环伏安电沉积及其异常红外性能研究

doi:10.13208/j.electrochem.131163

电化学（中英文） ›› 2014, Vol. 20 ›› Issue (5): 410-415. doi: 10.13208/j.electrochem.131163

• 电化学近期研究专辑（厦门大学姜艳霞教授主编） • 上一篇下一篇

钴铂合金薄膜的循环伏安电沉积及其异常红外性能研究

陈青松^1,2，郭国聪²，孙世刚^1*

1. 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，福建厦门 361005；2. 中国科学院福建物质结构研究所，结构化学国家重点实验室，福建福州 350002

收稿日期:2013-12-12 修回日期:2014-03-12 出版日期:2014-10-28 发布日期:2014-03-17
通讯作者: 孙世刚 E-mail:sgsun@xmu.edu.cn
基金资助:
国家973计划项目（No. 2012CB215500，No. 2013CB933200）、国家自然科学基金项目（No. 21021002，No. 21203200，No. 21303202）及福建省自然科学基金项目（No. 2012J05032，No. 2013J05034）资助

Electrochemical Deposition of CoPt Alloy Thin Film and Its Abnormal Infrared Effects

CHEN Qing-song^1,2, GUO Guo-cong², SUN Shi-gang^1*

1. State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China; 2. State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou 350002, China

Received:2013-12-12 Revised:2014-03-12 Published:2014-10-28 Online:2014-03-17
Contact: SUN Shi-gang E-mail:sgsun@xmu.edu.cn

摘要/Abstract

摘要： 运用循环伏安电沉积在玻碳基底上制得纳米结构钴铂合金薄膜，扫描电子显微镜和X-射线能量散射谱研究表明，钴铂薄膜主要由平均粒经为139 nm的纳米粒子组成，钴和铂的原子比为3:5. 以CO为探针分子，电化学原位FTIR反射光谱研究发现钴铂薄膜具有异常红外效应. 吸附态CO发生异常红外吸收，谱峰比本体钴和铂分别增强了34和43倍.

关键词: 钴铂合金, 薄膜, 异常红外效应, 原位红外光谱

Abstract: Nanostructured CoPt alloy thin film was deposited on glassy carbon substrate (denoted as CoPt/GC) under cyclic voltammetric conditions. SEM studies demonstrated that the CoPt/GC was composed of nonuniform nanoparticles with an average size of 139 nm. The composition of the CoPt/GC was analyzed by energy dispersive X-ray spectroscopy (EDS), which depicts a Co:Pt ratio of ca. 3:5. In situ FTIR spectroscopy employing CO adsorption as a probe reaction revealed that the CoPt/GC exhibits abnormal infrared effects (AIREs). The unique anomalous IR features of CO adsorbed (CO_ad) on CoPt/GC consist in the complete inversion of the CO_ad IR bands, the significant enhancement of IR absorption of CO_ad, and the broadening of the CO_ad IR bands. The current investigation has extended the study of AIREs to nanomaterials of alloy of iron family and Pt group, which is of great importance to reveal the relationship among peculiar optical properties and surface composition, structure of nanomaterials, and shed valuable insights into understanding the nature of anomalous IR properties.

Key words: CoPt alloy, thin film, abnormal infrared effects, in situ FTIRS

中图分类号:

O646

陈青松，郭国聪，孙世刚*. 钴铂合金薄膜的循环伏安电沉积及其异常红外性能研究[J]. 电化学（中英文）, 2014, 20(5): 410-415.

CHEN Qing-song, GUO Guo-cong, SUN Shi-gang*. Electrochemical Deposition of CoPt Alloy Thin Film and Its Abnormal Infrared Effects[J]. Journal of Electrochemistry, 2014, 20(5): 410-415.

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https://electrochem.xmu.edu.cn/CN/Y2014/V20/I5/410

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钴铂合金薄膜的循环伏安电沉积及其异常红外性能研究

Electrochemical Deposition of CoPt Alloy Thin Film and Its Abnormal Infrared Effects

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