A corrosion-reconstructed and stabilized economical Fe-based catalyst for oxygen evolution

Lang，Zhiquan1; Song，Guang Ling1,2,3,4; Wu，Pengpeng1; Zheng，Dajiang1

2022

10.1007/s12274-022-5006-y

Nano Research   Impact Factor & Quartile

1998-0124

1998-0000

The anode activity can to a great degree limit the cathodic hydrogen evolution efficiency in an electrolyte cell. Thus, cost-efficient electrocatalysts with good water oxidation performance and stability are highly desired in widespread implementation of the hydrogen production from water splitting. This paper proposes a facile corrosion-reconstruction strategy to transform Fe surface into a Fe-Co hydroxide layer to improve the oxygen evolution activity. The as-prepared catalyst was measured to have an over-potentential as low as 320 mV at 100 mA·cm, and its stability even exceeded 600 h. Surface and Raman spectroscopy analyses indicated that the catalyst experienced chemical changes from hydroxides to oxyhydroxides and Co to Co during oxygen evolution reaction (OER). The corrosion-reconstruction is not only an economical method to synthesize a highly efficient, stable and durable Fe-based catalysts, it also converses the detrimental corrosion into a beneficial catalyst fabrication process. [Figure not available: see fulltext.]

corrosion electrocatalyst oxygen evolution reaction stability

SCI

English

Others

National Natural Science Foundation of China["51731008","51671163"]

Chemistry ; Science & Technology - Other Topics ; Materials Science ; Physics

Chemistry, Physical ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied

WOS:000856614800001

TSINGHUA UNIV PRESS

2-s2.0-85138560881

Scopus

1.Center for Marine Materials Corrosion and Protection,Xiamen University,Xiamen,361005,China
2.Department of Ocean Science and Engineering,Southern University of Science and Technology,Shenzhen,518055,China
3.State Key Laboratory of Physical Chemistry of Solid Surfaces,Xiamen University,Xiamen,361005,China
4.The University of Queensland,St. Lucia,Australia

Lang，Zhiquan,Song，Guang Ling,Wu，Pengpeng,et al. A corrosion-reconstructed and stabilized economical Fe-based catalyst for oxygen evolution[J]. Nano Research,2022.

Lang，Zhiquan,Song，Guang Ling,Wu，Pengpeng,&Zheng，Dajiang.(2022).A corrosion-reconstructed and stabilized economical Fe-based catalyst for oxygen evolution.Nano Research.

Lang，Zhiquan,et al."A corrosion-reconstructed and stabilized economical Fe-based catalyst for oxygen evolution".Nano Research (2022).