Publications by authors named "Wenxing Zheng"
Ruthenium dioxide has attracted extensive attention as a promising catalyst for oxygen evolution reaction in acid. However, the over-oxidation of RuO into soluble HRuO species results in a poor durability, which hinders the practical application of RuO in proton exchange membrane water electrolysis. Here, we report a confinement strategy by enriching a high local concentration of in-situ formed HRuO species, which can effectively suppress the RuO degradation by shifting the redox equilibrium away from the RuO over-oxidation, greatly boosting its durability during acidic oxygen evolution.
View Article and Find Full Text PDFOxyanion Engineering on RuO for Efficient Proton Exchange Membrane Water Electrolysis.
Angew Chem Int Ed Engl
November 2024
In acidic proton exchange membrane water electrolysis (PEMWE), the anode oxygen evolution reaction (OER) catalysts rely heavily on the expensive and scarce iridium-based materials. Ruthenium dioxide (RuO) with lower price and higher OER activity, has been explored for the similar task, but has been restricted by the poor stability. Herein, we developed an anion modification strategy to improve the OER performance of RuO in acidic media.
View Article and Find Full Text PDFArticle Synopsis
- - Non-alcoholic fatty liver disease (NAFLD) is a common chronic liver condition in developed countries, with 10-20% of patients progressing to a more severe form called non-alcoholic steatohepatitis (NASH), where 25% may develop cirrhosis within a decade.
- - Researchers identified the gene C5aR1 as highly expressed in NASH and linked its levels to liver damage markers, suggesting a role in liver inflammation and health.
- - Reducing C5aR1 in mouse models showed decreased liver weight, improved liver enzyme levels, and reduced inflammation, highlighting its potential for targeted treatment of NASH.