Effect of silver electrode wetting state on oxygen reduction electrochemistry. Issue 65 (30th June 2021)

• Record Type: Journal Article
• Authors: McKee, Austin; Samanta, Avik; Rassoolkhani, Alan; Koonce, Jonathan; Huang, Wuji; Fields, Jacob; Shaw, Scott K.; Gomes, Joseph; Ding, Hongtao; Mubeen, Syed
• Is Part Of: Chemical communications. Volume 57:Issue 65(2021)
• Page Start: 8003
• Page End: 8006
• Publication Date: 2021-06-30
• Subjects: Chemistry -- Periodicals; 540
• DOI: 10.1039/d1cc01438b
• Languages: English
• ISSNs: 1359-7345

Abstract

Abstract : Direct tuning of silver electrode wetting state affects its activity and selectivity for oxygen reduction reaction. Abstract : Surface wettability plays an important role in heterogeneous electrocatalysis. Here we report a facile laser ablation strategy to directly modify the wettability of the silver catalyst surface and investigate its effect on oxygen reduction reaction (ORR). A broad range tuning of 2e − /4e − ORR pathways was achieved, with hydrophilic silver surfaces (contact angle ( θ w ) 31.1° ± 0.6°) showing high activity and selectivity towards 4e − reduction of oxygen to water.