In-situ Raman spectroscopic studies on the oxide species in molten Li/K2CO3

被引：30

作者：

Chen, LJ

Cheng, X

Lin, CJ ^{[1
]}

Huang, CM

机构：

[1] Xiamen Univ, Dept Chem, Xiamen 361005, Peoples R China

[2] Xiamen Univ, Dept Mat Sci, State Key Lab Phys Chem Solid Surfaces, Xiamen 361005, Peoples R China

[3] Energy Res Corp Connecticut, Danbury, CT 06813 USA

来源：

ELECTROCHIMICA ACTA | 2002年 / 47卷 / 09期

关键词：

MCFC; in-situ Raman; Li/K carbonate; NiO cathode; oxide species;

D O I：

10.1016/S0013-4686(01)00872-6

中图分类号：

O646 [电化学、电解、磁化学];

学科分类号：

081704 [应用化学];

摘要：

Many concerns have been raised about the mechanism of cathode reaction in molten carbonate fuel cell (MCFC). The chemical behavior of oxide species at cathode in molten carbonate is a key for understanding the process of cathode reactions. In this paper, the variety and role of the oxide species in both bulk and thin-film of basic molten carbonates were investigated by using a novel in-situ Raman spectroscopy. The results indicated that the dominant oxide species under basic conditions was peroxide ion, and it was possible to transform into the oxygen of crystalline lattice during the lithium-doped process. It was demonstrated that in-situ Raman spectroscopic technique was a promising tool to elucidate the mechanism of electrode reaction in molecular level in the MCFC condition. (C) 2002 Elsevier Science Ltd. All rights reserved.

引用

页码：1475 / 1480

页数：6

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