Self-oriented iron oxide nanorod array thin film for photoelectrochemical hydrogen production

NCUIR > Engineering College > Energy of Mechatronics > journal & Dissertation > Item 987654321/104985

Please use this identifier to cite or link to this item: https://ir.lib.ncu.edu.tw/handle/987654321/104985

Title:	Self-oriented iron oxide nanorod array thin film for photoelectrochemical hydrogen production
Authors:	曾重仁;Chang, Chih-Yung;Wang, Chih-Hao;Tseng, Chung-Jen;Cheng, Kong-Wei;Hourng, Lih-Wu;Tsai, Bin-Tsang
Contributors:	工學院能源工程研究所
Keywords:	Alternative fuels. Production and utilization;Anodization;Anodizing;Applied sciences;Energy;Exact sciences and technology;Fuels;Hydrogen;Hydrogen production;Iron oxide;Photoelectrochemical method
Date:	2012-09-01
Issue Date:	2026-04-23 12:03:08 (UTC+8)
Publisher:	Elsevier Ltd.;Kidlington: Elsevier Ltd
Abstract:	摘要： In this work, iron films were deposited on fluorine-tin-oxide coated glass substrate using radio frequency sputtering. Self-oriented iron oxide nanorod array thin films were obtained by anodizing the sputtered films. Anodization was carried out in an ethylene glycol solution containing 0.1 M NH4F and various content of water. We studied the mechanism of anodization of iron thin films, and investigated the effects of some parameters on the properties of the iron oxide thin films. Nanorod-like structures were observed from cross-sectional field-emission scanning electron microscope images. The size of the pores between the nanorods varies from 48 to 140 nm. The pore size increases as the conductivity of the electrolyte was increased from 596 to 957 μS/cm by adjusting water content. The direct energy band gaps of the samples are found to vary from 1.95 to 2.2 eV. The flat-band potentials were obtained from Mott-Schottky analysis and found to be in the range of −0.7 V to −0.75 V. The maximum photocurrent density was 0.72 mA/cm2 with a bias voltage of 0.5 V (V vs. Ag/AgCl), under a 300 W xenon lamp system. ► Properties of iron oxide thin films for solar water splitting were investigated. ► The self-oriented nanorod array films were obtained by anodizing iron films. ► Effects of anodization parameters were studied. ► Energy band gaps are found to vary from 1.95 to 2.2 eV from Mott-Schottky analysis. ► The maximum photocurrent density was 0.72 mA/cm2 with a bias voltage of 0.5 V. 出版者： Kidlington: Elsevier Ltd 出版日期： 2012-09-01 出處： International journal of hydrogen energy, 2012-09, Vol.37 (18), p.13616-13622 資源來源： Elsevier ScienceDirect Journals Complete 版權： 2012 Hydrogen Energy Publications, LLC. 版權： 2014 INIST-CNRS 識別號： ISSN: 0360-3199 識別號： EISSN: 1879-3487 識別號： DOI: 10.1016/j.ijhydene.2012.01.136 識別號： CODEN: IJHEDX
Appears in Collections:	[Energy of Mechatronics] journal & Dissertation

Files in This Item:

File	Description	Size	Format
index.html		0Kb	HTML	13	View/Open

社群 sharing

Loading...