INSITU STUDIES OF A DISPERSED PLATINUM ON CARBON ELECTRODE USING X-RAY ABSORPTION-SPECTROSCOPY

被引：58

作者：

HERRON, ME

DOYLE, SE

PIZZINI, S

ROBERTS, KJ

ROBINSON, J

HARDS, G

WALSH, FC

机构：

[1] UNIV STRATHCLYDE,DEPT PURE & APPL CHEM,GLASGOW G1 1XL,SCOTLAND

[2] UNIV WARWICK,DEPT PHYS,COVENTRY CV4 7AL,W MIDLANDS,ENGLAND

[3] JOHNSON MATTHEY TECHNOL CTR,READING RG4 9NH,ENGLAND

[4] PORTSMOUTH POLYTECH,DEPT CHEM,PORTSMOUTH PO1 2DT,ENGLAND

[5] SERC,DARESBURY LAB,WARRINGTON WA4 4AD,CHESHIRE,ENGLAND

来源：

JOURNAL OF ELECTROANALYTICAL CHEMISTRY | 1992年 / 324卷 / 1-2期

关键词：

D O I：

10.1016/0022-0728(92)80049-A

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

In situ X-ray absorption spectroscopy measurements at the Pt L3 edge are reported for a high surface area platinum on carbon fuel cell type electrode in 1 M H2SO4 at 20-degrees-C. A purpose-built thin-layer cell was used in the transmission mode and spectra were recorded for the electrode at controlled potentials in the range 0.10-1.20 V/SCE. Changes in the near-edge spectra (XANES) and in the extended X-ray absorption fine structure (EXAFS) are reported and discussed in terms of the structural nature of the surface oxidation process.

引用

页码：243 / 258

页数：16

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