The Influence of Oxygen Content on the Thermal Activation of Hematite Nanowires | Zendy

Ling Yichuan | Zendy; Wang Gongming | Zendy; Reddy Jay | Zendy; Wang Changchun | Zendy; Zhang Jin Z. | Zendy; Li Yat | Zendy

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The Influence of Oxygen Content on the Thermal Activation of Hematite Nanowires

Author(s) -

Ling Yichuan,

Wang Gongming,

Reddy Jay,

Wang Changchun,

Zhang Jin Z.,

Li Yat

Publication year - 2012

Publication title -

angewandte chemie international edition

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 5.831

H-Index - 550

eISSN - 1521-3773

pISSN - 1433-7851

DOI - 10.1002/anie.201107467

Subject(s) - hematite , nanowire , photocurrent , materials science , thermal decomposition , oxygen , chemical engineering , nanotechnology , chemistry , metallurgy , optoelectronics , organic chemistry , engineering

Live wire : Thermal decomposition of β‐FeOOH nanowires at 550 °C in an oxygen‐deficient atmosphere generates highly photoactive hematite nanowires (N‐hematite), which yielded a substantially enhanced photocurrent density, as compared to a hematite sample prepared in air (A‐hematite). This enhanced photoactivity is attributed to the improved donor density of hematite nanowires, as a result of formation of oxygen vacancies.

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