Performance of a fuel cell optimized for in situ X-ray absorption experiments

被引：24

作者：

Principi, Emiliano ^{[1
]}

Di Cicco, Andrea

Witkowska, Agnieszka

Marassi, Roberto

机构：

[1] Univ Camerino, Dipartimento Fis, CNISM, CNR,INFM,CRS,SOFT, I-62032 Camerino, MC, Italy

[2] Univ Paris 06, CNRS, UMR 7590, IMPMC, F-75015 Paris, France

[3] Gdansk Univ Technol, Dept Solid State Phys, PL-80952 Gdansk, Poland

[4] Univ Camerino, Dipartimento Chim, I-62032 Camerino, MC, Italy

来源：

JOURNAL OF SYNCHROTRON RADIATION | 2007年 / 14卷

关键词：

in situ XAS; fuel cell;

D O I：

10.1107/S0909049507013593

中图分类号：

TH7 [仪器、仪表];

学科分类号：

0804 ; 080401 ; 081102 ;

摘要：

A commercial fuel cell has been successfully modified to carry out X-ray absorption spectroscopy (XAS) measurements under optimized in operando conditions. The design is conceived for the performance of XAS experiments in transmission mode over a wide range of X-ray energies above 6 keV, owing to the reduced absorption of the cell. The wide angular aperture allows the collection of XAS in fluorescence mode and of X-ray diffraction patterns when needed. Details of the design of the cell and its performances are given. The quality of the extended X-ray absorption fine-structure spectra under working conditions has been verified at the ESRF and ELETTRA synchrotron radiation facilities, showing that relatively fast and low-noise transmission measurements on electrodes over a wide range of catalyst concentrations and energies are feasible.

引用

页码：276 / 281

页数：6

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