Journal
CATALYSIS TODAY
Volume 262, Issue -, Pages 95-99Publisher
ELSEVIER
DOI: 10.1016/j.cattod.2015.08.046
Keywords
Interfacial water; Pt(111) surface; Oxygen reduction; Methanesulfonic acid; Hanging meniscus rotating disk; voltammetry
Funding
- Estudiantes sobresalientes de posgrado at the UNAL
- COLCIENCIAS National Doctoral Scholarship [567]
- UNAL [19030]
Ask authors/readers for more resources
Most of electrocatalytic reactions occur in an aqueous environment. Understanding the influence of water structure on reaction dynamics is fundamental in electrocatalysis. In this work, the role of liquid water structure on the oxygen reduction at Pt(1 1 1) electrode is analyzed in methanesulfonic (MTSA) and perchloric acids. This is because these different anions can exert a different influence on liquid water structure. Results reveal a lower ORR electrode activity in MTSA than in HClO4 solutions and they are discussed in light of anion's influence on water structural ordering. From them, the existence of an outer-sphere, rate determining, step in the ORR mechanism is suggested. (C) 2015 Elsevier B.V. All rights reserved.
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