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	Heterogeneous electrocatalytic reduction of maleic acid on nanocrystalline TiO2 film modified Ti electrode
	Gu, JS ; Gu JS(顾家山) ; Chu, DB ; Chu DB(褚道葆) ; Zhou, XF ; Zhou XF(周幸福) ; Shen, GX ; Shen GX(沈广霞)
	2003
关键词	nanocrystalline TiO2 film electrode electrocatalysis cyclic voltammetry maleic acid butane diacid
英文摘要	The precursor Ti(OEt)(4) was prepared by anodic dissolution of metallic titanium in absolute ethanol and direct hydrolysis to prepare nanocrystalline TiO2 film on titanium electrode (Ti/nano-TiO2) by a sol-gel process. SEM and XRD were used to characterize the structure of nanocrystalline TiO2 film (anatase, 25 nm). Redox behavior and electrocatalytic activities of the Ti/nano-TiO2 electrode were investigated by cyclic voltammetry (CV) and cyclic osteryoung square wave voltammetry (COV) and bulk electrolysis. The results indicate that there are two pairs of well-defined redox peaks for Ti/nano-TiO2 film electrode in 1 mol/L H2SO4 with E-1/2(r) of -0.53 V and -0.92 V (vs. SCE) at 0.05 V (.) s(-1) in correspondence with TiO2/Ti2O3 and TiO2/Ti(OH)(3) reversible electrode process and the heterogeneous electrocatalytic reduction activities of TiO2/Ti2O3 redox in the electrode for maleic acid. It is found that the indirect electroreduction of maleic acid to butane diacid was achieved by Ti-IV/Ti-III redox system on the nanocrystalline TiO2 film surface, the electrode reaction mechanism is the called catalytic (EC') mechanism.
语种	中文
出版者	SCIENCE CHINA PRESS
内容类型	期刊论文
源URL	[http://dspace.xmu.edu.cn/handle/2288/12017]
专题	化学化工－已发表论文
推荐引用方式 GB/T 7714	Gu, JS,Gu JS,Chu, DB,et al. Heterogeneous electrocatalytic reduction of maleic acid on nanocrystalline TiO2 film modified Ti electrode[J],2003.
APA	Gu, JS.,顾家山.,Chu, DB.,褚道葆.,Zhou, XF.,...&沈广霞.(2003).Heterogeneous electrocatalytic reduction of maleic acid on nanocrystalline TiO2 film modified Ti electrode..
MLA	Gu, JS,et al."Heterogeneous electrocatalytic reduction of maleic acid on nanocrystalline TiO2 film modified Ti electrode".(2003).

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