Engineering of Coordination Environment and Multiscale Structure in Single-Site Copper Catalyst for Superior Electrocatalytic Oxygen Reduction
| Autor: | Yadong Li, Wenxing Chen, Tianyu Zheng, Yang-Gang Wang, Lianbin Xu, Yinlong Li, Dingsheng Wang, Zedong Zhang, Xianzhang Fu, Pianpian Zhang, Tingting Sun, Tingting Cui, Shaolong Zhang |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
Materials science
Mechanical Engineering chemistry.chemical_element Bioengineering 02 engineering and technology General Chemistry Carbon matrix 021001 nanoscience & nanotechnology Condensed Matter Physics Copper Oxygen reduction Catalysis Condensed Matter::Materials Science Copper atom chemistry Chemical engineering Oxidation state Single site General Materials Science Physics::Atomic Physics 0210 nano-technology Mesoporous material |
| Zdroj: | Nano Letters. 20:6206-6214 |
| ISSN: | 1530-6992 1530-6984 |
| Popis: | Herein, we report efficient single copper atom catalysts that consist of dense atomic Cu sites dispersed on a three-dimensional carbon matrix with highly enhanced mesoporous structures and improved active site accessibility (Cu-SA/NC(meso)). The ratio of +1 to +2 oxidation state of the Cu sites in the Cu-SA/NC(meso) catalysts can be controlled by varying the urea content in the adsorption precursor, and the activity for ORR increases with the addition of Cu |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|