An Efficient Turing‐Type Ag 2 Se‐CoSe 2 Multi‐Interfacial Oxygen‐Evolving Electrocatalyst**
| Autor: | Xusheng Zheng, Fei-Yue Gao, Xiao-Long Zhang, Xiao Zheng, Tao Ma, Rui Wu, Li-Ping Chi, Yu Duan, Ya-Rong Zheng, Chengming Wang, Zhi-Zheng Wu, Shaojin Hu, Min-Rui Gao, Zhuang-Zhuang Niu, Junfa Zhu, Peng-Peng Yang, Chao Gu, Shuai Qin, Xingxing Yu |
|---|---|
| Rok vydání: | 2021 |
| Předmět: |
Materials science
010405 organic chemistry Oxygen evolution General Medicine General Chemistry Electrolyte 010402 general chemistry Electrochemistry Electrocatalyst 01 natural sciences Catalysis 0104 chemical sciences Anode Adsorption Chemical physics Reaction–diffusion system Absorption (chemistry) |
| Zdroj: | Angewandte Chemie International Edition. 60:6553-6560 |
| ISSN: | 1521-3773 1433-7851 |
| DOI: | 10.1002/anie.202017016 |
| Popis: | Although the Turing structures, or stationary reaction-diffusion patterns, have received increasing attention in biology and chemistry, making such unusual patterns on inorganic solids is fundamentally challenging. We report a simple cation exchange approach to produce Turing-type Ag2 Se on CoSe2 nanobelts relied on diffusion-driven instability. The resultant Turing-type Ag2 Se-CoSe2 material is highly effective to catalyze the oxygen evolution reaction (OER) in alkaline electrolytes with an 84.5 % anodic energy efficiency. Electrochemical measurements show that the intrinsic OER activity correlates linearly with the length of Ag2 Se-CoSe2 interfaces, determining that such Turing-type interfaces are more active sites for OER. Combing X-ray absorption and computational simulations, we ascribe the excellent OER performance to the optimized adsorption energies for critical oxygen-containing intermediates at the unconventional interfaces. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Plný text