Journal
DALTON TRANSACTIONS
Volume 51, Issue 20, Pages 7957-7965Publisher
ROYAL SOC CHEMISTRY
DOI: 10.1039/d2dt00824f
Keywords
-
Categories
Funding
- Futura Foundation
- National Natural Science Foundation of China [NSFC-21727801]
- SPST, ShanghaiTech University [SPST-AIC 10112914]
- Swedish National Infrastructure for Computing [SNIC 2020/13-64]
Ask authors/readers for more resources
This study reports a new type of active anode based on a molecular catalyst for electrochemically-driven water oxidation. By attaching the catalyst to glassy carbon, the stability and reactivity of the anode are improved. Using various characterization techniques, it is demonstrated that this anode performs comparably to state-of-the-art metal oxide anodes.
Electrochemical water splitting constitutes one of the most promising strategies for converting water into hydrogen-based fuels, and this technology is predicted to play a key role in the transition towards a carbon-neutral energy economy. To enable the design of cost-effective electrolysis cells based on this technology, new and more efficient anodes with augmented water splitting activity and stability will be required. Herein, we report an active molecular Ru-based catalyst for electrochemically-driven water oxidation (overpotential of similar to 395 mV at pH 7 phosphate buffer) and two simple methods for preparing anodes by attaching this catalyst onto glassy carbon through multi-walled carbon nanotubes to improve stability as well as reactivity. The anodes modified with the molecular catalyst were characterized by a broad toolbox of microscopy and spectroscopy techniques, and interestingly no RuO2 formation was detected during electrocatalysis over 4 h. These results demonstrate that the herein presented strategy can be used to prepare anodes that rival the performance of state-of-the-art metal oxide anodes.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available