In Situ Identification of Zinc Sites as Potential-Dependent Selectivity Switch over Dual-Atom Catalysts for H 2 O 2 Electrosynthesis
University of Science and Technology of China · National Synchrotron Radiation Laboratory · +10 more institutions
Abstract
Controllably breaking the activity–selectivity trade-offs in the electrocatalytic oxygen reduction reaction to produce H2O2 has long been a challenge in renewable energy technologies. Herein, by assigning the activity and selectivity requirements to two independent single-atom sites, we deliberately engineered a Co–Zn DAC for promising H2O2 electrosynthesis, from which the Co sites provided the activity response for oxygen reduction, and the Zn sites regulated the reaction selectivity toward the 2e– pathway. Through multidimensional in situ characterizations, a potential-dependent switching function of the Zn sites was revealed, which made the increase in H2O2 production at various reaction stages…
Citation impact
- FWCI
- 15.39
- Percentile
- 100%
- References
- 48
Authors
17- QAQizheng An
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- XQXupeng Qin
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- XSXuan Sun
University of Science and Technology of China, National Synchrotron Radiation Laboratory
- XZXu Zhang
Beijing University of Technology
- YZYuhao Zhang
University of Science and Technology of China, National Synchrotron Radiation Laboratory
Topics & keywords
- Selectivity
- Electrosynthesis
- Chemistry
- Catalysis
- Zinc
- Atom (system on chip)
- Redox
- In situ
- Affordable and clean energy