Effects of platinum doping on the photoelectrochemical properties of Fe2O3 electrodes

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题名:	Effects of platinum doping on the photoelectrochemical properties of Fe2O3 electrodes
作者:	曾重仁;Hsu, Ya-Ping;Lee, Sheng-Wei;Chang, Jeng-Kuei;Tseng, Chung-Jen;Lee, Kan-Rong;Wang, Chih-Hao
贡献者:	工學院能源工程研究所
关键词:	Fe2O3;Photoelectrochemical method;Pt-doping;Sol-gel process;thin films
日期:	2013-09-30
上传时间:	2026-04-23 11:58:15 (UTC+8)
出版者:	Electrochemical Science Group;Elsevier B.V
摘要:	摘要： The effects of platinum (Pt) doping on the structure and photoelectrochemical properties of Fe2O3 electrodes have been investigated. The Pt-doped Fe2O3 electrodes were prepared by sol-gel and spin coated on fluorine-tin-oxide coated glass substrate. Influences of dopant concentration on material properties and photoelectrochemical characteristics were examined. Results of XRD and XPS showed that _-Fe2O3 can be obtained using 500 oC annealing in air. The band gaps of the samples obtained from reflectance and transmittance spectra measurement were found to vary from 1.98 to 2.03 eV. The flat band potentials of the samples were obtained from the Mott-Schottky analysis and found to be in the range of -0.135 V to -0.6 V. The maximum photocurrent density of undoped and 0.1 at.% Pt-doped Fe2O3 electrodes was 0.5 mA/cm2 and 0.7 mA/cm2 under a 300 W Xe lamp system, respectively. The good photoelectrochemical results of the Pt-doped Fe2O3 electrode warrant further investigation for broader applications in the future. 出版者： Elsevier B.V 出版日期： 2013-09-01 出處： International journal of electrochemical science, 2013-09, Vol.8 (9), p.11615-11623 資源來源： Alma/SFX Local Collection 版權： 2013 The Authors. Published by ESG 識別號： ISSN: 1452-3981 識別號： EISSN: 1452-3981 識別號： DOI: 10.1016/S1452-3981(23)13209-3
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