Electrochemical oxidation of dihydronicotinadmide adenine dinucleotide (NADH) on single crystal gold electrodes

Xuekun Xing, Meijun Shao, Chung Chiun Liu

研究成果: 雜誌貢獻期刊論文同行評審

21 引文 斯高帕斯(Scopus)

摘要

The electro-oxidation of dihydronicotinamide adenine dinucleotide (NADH) on three low-index basal single crystal gold faces was studied in a phosphate buffer solution. The reaction was found highly structure-sensitive; the Au(100) and Au(111) faces showed a high electrocatalytic activity, while the Au(110) face was much less active. The high electrocatalytic effect was attributed to the oxidation-mediator ability of the partially discharged OH(1-r)- species on the gold surface. The structural effect of the gold faces on the electro-oxidation of NADH may result from the difference in the adsorption of NAD+, via its pyridine moiety as the adsorption site, on the different gold faces. The possibility of developing a highly sensitive NADH sensor based on the electrochemical faceting technique is suggested.

原文???core.languages.en_GB???
頁(從 - 到)83-90
頁數8
期刊Journal of Electroanalytical Chemistry
406
發行號1-2
DOIs
出版狀態已出版 - 30 4月 1996

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