引用本文:
郭黎平, 林祥钦. 固体六氰合铁酸钴微粒在聚电解质中的现场显微红外光谱电化学[J]. 应用化学,
1998, 15(4): 13-16.
Citation: Guo Liping, Lin Xiangqin. In-situ Microscopic FTIR Spectroelectrochemical Study of Cobalt Hexacyanoferrate Microcrystallites in Polyelectrolyte[J]. Chinese Journal of Applied Chemistry, 1998, 15(4): 13-16.
Citation: Guo Liping, Lin Xiangqin. In-situ Microscopic FTIR Spectroelectrochemical Study of Cobalt Hexacyanoferrate Microcrystallites in Polyelectrolyte[J]. Chinese Journal of Applied Chemistry, 1998, 15(4): 13-16.
固体六氰合铁酸钴微粒在聚电解质中的现场显微红外光谱电化学
摘要:
报道了六氰合铁酸钴(COHCF)微粒在聚电解质中的光谱电化学及电催化行为.CoHCF的循环伏安呈现一对可逆氧化还原峰,电位扫速在100mV/s范围内,峰电流与扫速成正比.现场红外光谱表明,氧化还原属于CoHCF中的Fe(Ⅱ/Ⅲ)的转化CoHCF微粒可以催化抗坏血酸的氧化,使氧化电位负移,氧化电流增大.根据现场红外光谱推测,催化作用是通过抗坏血酸的烯酸基与CoHCF相互作用实现的.
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关键词:
- 六氰合铁酸钴
- / 聚乙二醇
- / 现场显微红外光谱电化学
- / 电催化
English
In-situ Microscopic FTIR Spectroelectrochemical Study of Cobalt Hexacyanoferrate Microcrystallites in Polyelectrolyte
Abstract:
Cobalt hexacyanoferrate (CoHCF) microcrystallites exhibited well-defined cyclic voltammetric waves in polyethylene glycol. The peak current of COHCF was linear to the scanning speed at 100 mV/s and lower. In-situ IR spectra indicated that the redox involved interchange of ferric and ferrous states of the hexacyanoferrate. CoHCF catalyzed the oxidation of ascorbic acid with the oxidation peak poteneial shifting negatively to 183 mV. A catalysis mechanism is proposed.
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