Enhanced Photoelectrochemical Oxygen Evolution Reaction Ability of Iron-Derived Hematite Photoanode with Titanium Modification.

Qiu, Weitao; Huang, Yongchao; Long, Bei; Li, Haibo; Tong, Yexiang; Ji, Hongbing

Qiu, Weitao; Huang, Yongchao; Long, Bei; Li, Haibo; Tong, Yexiang; Ji, Hongbing.

Afiliação

Qiu W; MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, The Key Lab of Low-Carbon Chem & Energy Conservation of Guangdong Province, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135, Xingang West Road, Guangzhou 5
Huang Y; The Key Lab of Low-Carbon Chem & Energy Conservation of Guangdong Province, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135, Xingang West Road, Guangzhou 510275 (P. R. China).
Long B; MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, The Key Lab of Low-Carbon Chem & Energy Conservation of Guangdong Province, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135, Xingang West Road, Guangzhou 5
Li H; MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, The Key Lab of Low-Carbon Chem & Energy Conservation of Guangdong Province, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135, Xingang West Road, Guangzhou 5
Tong Y; MOE of the Key Laboratory of Bioinorganic and Synthetic Chemistry, KLGHEI of Environment and Energy Chemistry, The Key Lab of Low-Carbon Chem & Energy Conservation of Guangdong Province, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135, Xingang West Road, Guangzhou 5
Ji H; The Key Lab of Low-Carbon Chem & Energy Conservation of Guangdong Province, School of Chemistry and Chemical Engineering, Sun Yat-Sen University, No. 135, Xingang West Road, Guangzhou 510275 (P. R. China). jihb@mail.sysu.edu.cn.

Chemistry ; 21(52): 19250-6, 2015 Dec 21.

Article em En | MEDLINE | ID: mdl-26558337

ABSTRACT

ABSTRACT

A facile fabrication route towards a titanium-modified hematite photoanode has been developed, and the photoelectrochemical properties of this anode have been evaluated. Compared to pristine hematite, the activity of the modified photoanode in this work delivered almost twofold higher photocurrent under Air Mass 1.5G illumination. Further research revealed that the enhanced performance of the hematite photoanode with a titanium-modified surface resulted from the dominant impact of heterojunction formation and suppressed surface recombination, supplemented by a slightly improved light-harnessing ability.

Palavras-chave

electrodeposition; hematite; heterojunction; photoelectrochemical cell; surface chemistry; titanium

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