| In-situ Raman光谱研究MCFC中NiO阴极溶解破坏机理 |
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| 引用本文： | 陈丽江,程璇,林昌健,黄朝明. In-situ Raman光谱研究MCFC中NiO阴极溶解破坏机理[J]. 高等学校化学学报, 2002, 23(4): 661-664 |
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| 作者姓名： | 陈丽江 程璇 林昌健 黄朝明 |
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| 作者单位： | 厦门大学化学系,材料科学与工程系,固体表面物理化学国家重点实验室,厦门,361005;美国能源研究公司,Connecticut,06813,USA |
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| 基金项目： | 国家杰出青年科学基金(批准号:59525102)资助． |
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| 摘 要： | 采用一种新的原位Raman光谱技术对CO2在熔融碳酸盐燃料电池中的NiO阴极的溶解过程中的微观作用进行初步研究。结果表明，CO2气体极易吸附于NiO阴极的表面，在含氧气氛及熔融碳酸盐的条件下，吸附的CO2与活化态O2相互作用形成碳酸根，并进入熔盐电解质，NiO表面的脱附态CO2驰可与NiO中的晶格氧作用，导致NiO的溶解破坏。
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| 关 键 词： | 熔融碳酸盐燃料电池 NiO阴极 溶解破坏 二氧化碳 原位 Raman光谱 |
| 文章编号： | 0251-0790(2002)04-0661-04 |
Investigations on Dissolution Mechanism of the NiO Cathode Materials in MCFC by In-situ Raman Spectroscopy |
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| CHEN Li-Jiang,CHENG Xuan,LIN Chang-Jian. Investigations on Dissolution Mechanism of the NiO Cathode Materials in MCFC by In-situ Raman Spectroscopy[J]. Chemical Research In Chinese Universities, 2002, 23(4): 661-664 |
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| Authors: | CHEN Li-Jiang CHENG Xuan LIN Chang-Jian |
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| Abstract: | The investigation of dissolution and degradation mechanism of NiO cathode in Molten CarbonateFuel Cell (MCFC) has recently attracted considerable attention. In this work a novel in-situ Raman spec-troscopic technique were developed to study the CO2 microscopic action in the dissolution of NiO. The re-sults indicate that CO2 tend to adsorb on the surface of NiO, and the adsorbing CO2 is prone to being des-orbed in molten carbonate under O2 contained atmosphere, due to the strong reaction between the adsordedCO2 and active O2 on the NiO surface. |
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| Keywords: | MCFC NiO cathode Dissolution and degradation CO2 In-situ Raman spectroscopy |
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