Revealing the role of interfacial water and key intermediates at ruthenium surfaces in the alkaline hydrogen evolution reaction
Xiamen University · Collaborative Innovation Center of Chemistry for Energy Materials · +4 more institutions
Abstract
Abstract Ruthenium exhibits comparable or even better alkaline hydrogen evolution reaction activity than platinum, however, the mechanistic aspects are yet to be settled, which are elucidated by combining in situ Raman spectroscopy and theoretical calculations herein. We simultaneously capture dynamic spectral evidence of Ru surfaces, interfacial water, *H and *OH intermediates. Ru surfaces exist in different valence states in the reaction potential range, dissociating interfacial water differently and generating two distinct *H, resulting in different activities. The local cation tuning effect of hydrated Na + ion water and the large work function of high-valence Ru(n+) surfaces promote interfacial water…
Citation impact
- FWCI
- 29.81
- Percentile
- 100%
- References
- 63
Authors
12- XCXing Chen
Xiamen University, Collaborative Innovation Center of Chemistry for Energy Materials
- XWXiaoting Wang
Xiamen University, Chinese Academy of Sciences, Collaborative Innovation Center of Chemistry for Energy Materials, Ningbo Institute of Industrial Technology
- JLJiabo Le
Chinese Academy of Sciences, Ningbo Institute of Industrial Technology
- SLShumin Li
Xiamen University, Collaborative Innovation Center of Chemistry for Energy Materials
- XWXue Wang
Xiamen University, Chinese Academy of Sciences, Collaborative Innovation Center of Chemistry for Energy Materials, Ningbo Institute of Industrial Technology
Topics & keywords
- Valence (chemistry)
- Ruthenium
- Dissociation (chemistry)
- Catalysis
- Raman spectroscopy
- Chemistry
- Reaction intermediate
- Hydrogen
- Clean water and sanitation