SrNb 0.1 Co 0.7 Fe 0.2 O 3− δ   Perovskite as a Next‐Generation Electrocatalyst for Oxygen Evolution in Alkaline Solution | Zendy

Zhu Yinlong | Zendy; Zhou Wei | Zendy; Chen ZhiGang | Zendy; Chen Yubo | Zendy; Su Chao | Zendy; Tadé Moses O. | Zendy; Shao Zongping | Zendy

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SrNb 0.1 Co 0.7 Fe 0.2 O 3− δ Perovskite as a Next‐Generation Electrocatalyst for Oxygen Evolution in Alkaline Solution

Author(s) -

Zhu Yinlong,

Zhou Wei,

Chen ZhiGang,

Chen Yubo,

Su Chao,

Tadé Moses O.,

Shao Zongping

Publication year - 2015

Publication title -

angewandte chemie

Language(s) - English

Resource type - Journals

eISSN - 1521-3757

pISSN - 0044-8249

DOI - 10.1002/ange.201408998

Subject(s) - tafel equation , electrocatalyst , oxygen evolution , perovskite (structure) , catalysis , chemistry , desorption , ionic bonding , inorganic chemistry , oxygen , adsorption , chemical engineering , materials science , ion , electrode , crystallography , electrochemistry , biochemistry , organic chemistry , engineering

The perovskite SrNb 0.1 Co 0.7 Fe 0.2 O 3− δ (SNCF) is a promising OER electrocatalyst for the oxygen evolution reaction (OER), with remarkable activity and stability in alkaline solutions. This catalyst exhibits a higher intrinsic OER activity, a smaller Tafel slope and better stability than the state‐of‐the‐art precious‐metal IrO 2 catalyst and the well‐known BSCF perovskite. The mass activity and stability are further improved by ball milling. Several factors including the optimized e g orbital filling, good ionic and charge transfer abilities, as well as high OH − adsorption and O 2 desorption capabilities possibly contribute to the excellent OER activity.

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