高等学校化学学报 ›› 2000, Vol. 21 ›› Issue (S1): 93.

• Analytical Sciences • 上一篇    下一篇

Micro-Pt Array Electrode Towards CO Adsorption Investigated by Using In Situ FTIR Microscopy

GONG Hui, LUO Tao, ZHOU Zhi-You, CHEN Sheng-Pei, SUN Shi-Gang   

  1. Department of Chemistry, State key lab for physical chemistry of solid surfaces, Xiamen University, Xiamen 361005
  • 出版日期:2000-12-31 发布日期:2000-12-31
  • 通讯作者: SUN Shi-Gang E-mail:sgsun@xmu.edu.cn

Micro-Pt Array Electrode Towards CO Adsorption Investigated by Using In Situ FTIR Microscopy

GONG Hui, LUO Tao, ZHOU Zhi-You, CHEN Sheng-Pei, SUN Shi-Gang   

  1. Department of Chemistry, State key lab for physical chemistry of solid surfaces, Xiamen University, Xiamen 361005
  • Online:2000-12-31 Published:2000-12-31
  • Contact: SUN Shi-Gang E-mail:sgsun@xmu.edu.cn

摘要:

The best-known quality of microelectrode is the low capacity of the interfacial double layer[1]. In this paper, we have designed specially and fabricated an array electrode of micro-Pt (μ-Pt). 16 μ-Pt (200μm in diameter) electrodes were arranged in a 4 x 4 array, and the distance between each neighboring μ-Pt is 200μm. The associating designed electronic board allows to connect any individual μ-Pt or collective μ-Pts by selection with potentiostat, so the properties of an individual μ-Pt or arbitrarily grouped μ-Pt can be investigated conveniently. Moreover, by employing the in situ FTIR Microscopy[2], the surface processes of CO adsorption on the array electrode were studied. Information at molecule level concerning the abnormal infrared effects (AIREs)[3] of individual μ-Pt subjected to a fast potential scan treatment and the interaction between μ-Pts (coupled action) have been obtained for the first time.

Abstract:

The best-known quality of microelectrode is the low capacity of the interfacial double layer[1]. In this paper, we have designed specially and fabricated an array electrode of micro-Pt (μ-Pt). 16 μ-Pt (200μm in diameter) electrodes were arranged in a 4 x 4 array, and the distance between each neighboring μ-Pt is 200μm. The associating designed electronic board allows to connect any individual μ-Pt or collective μ-Pts by selection with potentiostat, so the properties of an individual μ-Pt or arbitrarily grouped μ-Pt can be investigated conveniently. Moreover, by employing the in situ FTIR Microscopy[2], the surface processes of CO adsorption on the array electrode were studied. Information at molecule level concerning the abnormal infrared effects (AIREs)[3] of individual μ-Pt subjected to a fast potential scan treatment and the interaction between μ-Pts (coupled action) have been obtained for the first time.

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