RAPID-DETERMINATION OF KINETIC-PARAMETERS FOR THE ELECTROCATALYTIC REDUCTION OF DIOXYGEN BY VITAMIN-B12 ADSORBED ON GLASSY-CARBON ELECTRODE
文献类型：期刊论文
| 作者 | QIU QS ; DONG SJ |
| 刊名 | electrochimica acta
 |
| 出版日期 | 1993 |
| 卷号 | 38期号:15页码:2297-2303 |
| 关键词 | PROTOPORPHYRIN MODIFIED ELECTRODE OXYGEN REDUCTION PHTHALOCYANINES COBINAMIDES COBALAMINS |
| ISSN号 | 0013-4686 |
| 中文摘要 | in this paper, the electrochemical behavior of vitamin b-12, ie cyanocobalamin (abbr. vb12) in a weak acidic aqueous solution and adsorbed on glassy carbon (gc) surface (abbr. vb12(ad)/gc) in different ph buffer solutions have been described by using cyclic voltammetry (cv). it is found that vb12 and vb12(ad)/gc exhibit catalytic activity for the electroreduction of o2 according to two reduction peaks at -0.50 and -1.00 v vs. sce; but their electrocatalytic activity is very unstable. based on the method of hydrodynamic amperometry [b. miller and s. bruckenstein, j. electrochem. soc. 117, 1033 (1970)], some kinetic parameters for the electrocatalytic reduction of o2 by vb12(ad)/gc have been determined rapidly by using a linear rotation-scan method [rongzhong jiang and shaojun dong, electrochim. acta 35, 1451 (1990)]. these kinetic parameters indicate that the reduction of o2 on vb12(ad)/gc gives water predominantly in both potential ranges which correspond to those two reduction peaks. possible reaction mechanisms have been suggested. |
| 收录类别 | SCI收录期刊论文 |
| 语种 | 英语 |
| 公开日期 | 2011-01-19 ; 2011-06-10 |
| 源URL | [http://ir.ciac.jl.cn/handle/322003/36045]  |
| 专题 | 长春应用化学研究所_长春应用化学研究所知识产出_期刊论文 |
| 推荐引用方式 GB/T 7714 | QIU QS,DONG SJ. RAPID-DETERMINATION OF KINETIC-PARAMETERS FOR THE ELECTROCATALYTIC REDUCTION OF DIOXYGEN BY VITAMIN-B12 ADSORBED ON GLASSY-CARBON ELECTRODE[J]. electrochimica acta,1993,38(15):2297-2303. |
| APA | QIU QS,&DONG SJ.(1993).RAPID-DETERMINATION OF KINETIC-PARAMETERS FOR THE ELECTROCATALYTIC REDUCTION OF DIOXYGEN BY VITAMIN-B12 ADSORBED ON GLASSY-CARBON ELECTRODE.electrochimica acta,38(15),2297-2303. |
| MLA | QIU QS,et al."RAPID-DETERMINATION OF KINETIC-PARAMETERS FOR THE ELECTROCATALYTIC REDUCTION OF DIOXYGEN BY VITAMIN-B12 ADSORBED ON GLASSY-CARBON ELECTRODE".electrochimica acta 38.15(1993):2297-2303. |
入库方式： OAI收割
来源：长春应用化学研究所
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