Novel synthesis of nanosized cellular iron oxide/oxyhydroxide thin films

2020-03-13 15:54:56

films Iron electrochemical oxide oxyhydroxide

责任者: Kyeong Woo Chung;Kwang Bum Kim;Seong-Ho Han;Hongkee Lee 单位: Dept. of Metall. Eng., Yonsei Univ., Seoul, South Korea 来源出处: Journal of the Electrochemical Society(J. Electrochem. Soc. (USA)),2005/08/,152(8):560-5 摘要: Iron oxide/oxyhydroxide thin films are currently being investigated for their applications in photoelectrochemical solar cells for solar energy conversion, sensors, catalysts, Li batteries, and electrochemical capacitors. The fabrication of nanoarchitectural thin films is very important for those applications because of the size-related effects of their performance. This study reports the novel synthesis of nanosized cellular iron oxide/oxyhydroxide thin films with high degrees of crystallinity and purity by electrochemical deposition of green rust thin films and their chemical oxidation. This technique is applicable to substrates with large surface areas of a few square centimeters or above without the aid of templates, high temperature, vacuum, or post-treatment 关键词: electrochemistry;electrodeposition;iron compounds;nanostructured materials;nanotechnology;oxidation;thin films;nanosized cellular iron oxide/oxyhydroxide thin films;electrochemical synthesis;green rust thin films;chemical oxidation;photoelectrochemical solar cells;solar energy conversion;sensors;catalysts;Li batteries;electrochemical capacitors;electrochemical deposition;FeOOH;Fe3O4;Fe2O3