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Citation: CHU Dao-Bao, ZHANG Li-Yan, ZHANG Jin-Hua, ZHANG Xiu-Mei, YIN Xiao-Juan. Heterogeneous Electrocatalytic Reduction of Furfural on Nanocrystalline TiO₂-CNT Complex Film Electrode in DMF Solution[J]. Acta Physico-Chimica Sinica, ;2006, 22(03): 373-377. doi: 10.3866/PKU.WHXB20060324 shu

Heterogeneous Electrocatalytic Reduction of Furfural on Nanocrystalline TiO₂-CNT Complex Film Electrode in DMF Solution

1.
Anhui Key Laboratory of Functional Molecular Solids, College of Chemistry and Materials Science, Anhui Normal University, Wuhu 241000, P. R. China; Department of Chemistry, Chizhou Normal Technological Academy, Chizhou 247000, P. R. China

Received Date: 22 September 2005
Available Online: 10 March 2006

The precursor Ti(OEt)4 was prepared by anodic dissolution of metallic titanium in absolute ethanol and directly hydrolyzed to prepare nanocrystalline TiO2-carbon nanotube(nanoTiO2-CNT) complex film by a sol-gel process. Redox behavior and electrocatalytic activities of the nanoTiO2-CNT complex film electrode were investigated by cyclic voltammetry (CV) and bulk electrolysis in DMF solution. It was found that there were two pairs of well-defined redox peaks for nanoTiO2-CNT complex film electrode with Er1/2 of －1.27 V and －2.44 V(vs SCE) at 100 mV•s-1 in correspondence with TiO2/Ti2O3 reversible and TiO2/Ti(OH)3 quasi-reversible electrode process, and the heterogeneous electrocatalytic reduction activities of TiO2/Ti(OH)3 redox system for furfural; The indirect electroreduction of furfural to furfural alcohol by Ti(IV)/Ti(III) redox system on nanoTiO2-CNT complex film surface in DMF. The electrode reaction mechanism is the called catalytic (EC′) mechanism.
- Furfural; Electrocatalytic reduction; Furfural alcohol; Nanocrystalline TiO2; Carbon nanotube; Complex film electrode
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Heterogeneous Electrocatalytic Reduction of Furfural on Nanocrystalline TiO2-CNT Complex Film Electrode in DMF Solution

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Heterogeneous Electrocatalytic Reduction of Furfural on Nanocrystalline TiO₂-CNT Complex Film Electrode in DMF Solution