Opening book details…
Can I read Selenic Acid Etching Assisted Vacancy Engineering for Designing Highly Active Electrocatalysts toward the Oxygen Evolution Reaction on EtoBox?
Selenic Acid Etching Assisted Vacancy Engineering for Designing Highly Active Electrocatalysts toward the Oxygen Evolution Reaction by Lin Zhang; Chengjie Lu; Fei Ye; Ruilvjing Pang; Yang Liu; Zeyi Wu; Zongping Shao; Zhengming Sun; Linfeng Hu is a Engineering article available to read on EtoBox.
What is Selenic Acid Etching Assisted Vacancy Engineering for Designing Highly Active Electrocatalysts toward the Oxygen Evolution Reaction about?
Oxygen evolution electrocatalysts are central to overall water splitting, and they should meet the requirements of low cost, high activity, high conductivity, and stable performance. Herein, a general, selenic-acid-assisted etching strategy is designed from a metal-organic framework as a precursor to realize carbon-coated 3d metal selenides M Se (Co Se , NiSe , FeSe ) with rich Se vacancies as high-performance precious metal-free oxygen evolution reaction (OER) electrocatalysts. Specifically, the as-prepared Co Se @C nanocages deliver an overpotential of only 231 mV at a current density of 10 mA cm for the OER and the corresponding full water-splitting electrolyzer requires only a cell voltage of 1.49 V at 10 mA cm in alkaline media. Density functional theory calculation reveals the important role of abundant Se vacancies for improving the catalytic activity through improving the conductivity and reducing reaction barriers for the formation of intermediates. Although phase change after long-term operation is observed with the formation of metal hydroxides, catalytic activity is not obviously affected, which strengthens the important role of the carbon network in the operating stabi
Who reads Selenic Acid Etching Assisted Vacancy Engineering for Designing Highly Active Electrocatalysts toward the Oxygen Evolution Reaction?
It is typically read by researchers, students, and practitioners in Engineering.
- Author
- Lin Zhang; Chengjie Lu; Fei Ye; Ruilvjing Pang; Yang Liu; Zeyi Wu; Zongping Shao; Zhengming Sun; Linfeng Hu
- Publisher
- Wiley
- Published
- 2021
- Language
- EN
- Field
- Engineering (Physical Sciences)