Electrocatalytic oxidation of sugars at Ag ad-layer modified Au(100) electrodes in alkaline solutions
Bildiriler > Tam Metin Bildiri
Yazarlar: Isao Taniguchi, Yasuhiro Nonaka, Zekerya DURSUN, Sami Ben Aoun, Changchun Jin, Gyeong Sook Bang, Tesshu Koga, Tadashi Sotomura
, Uluslararası, Tam Metin Bildiri, Scopus, cilt 72, ss 427-429
DOI: 10.5796/electrochemistry.72.427
Özet
Ag ad-layer modified Au(100) and Au(111) electrodes showed excellent catalytic behavior for oxidation of aldose type (such as glucose, maltose, galactose and xylose) sugars. The best catalytic effect was observed at a (√2 × 5√2)R 45° Ag-Au(100) electrode, 2/5 monolayer of Ag on Au(100), where the oxidation of glucose began at -0.7 V (vs. Ag/AgCl) with a negative shift of ca. 0.2 V in oxidation potential compared to the oxidation at a bare Au(100) electrode. As was observed at a (√3√3)R 30° Ag-Au(111) electrode, 1/3 monolayer of Ag on Au(111), the catalytic oxidation of glucose was also seen at Au (111) film electrodes with large surface areas after deposition of Ag ad-layer.