Effect of surface-bound sulfide on oxygen reduction reaction on Pt: Breaking the scaling relationship and mechanistic insights
Journal Article
·
· Journal of Chemical Physics
- Georgetown Univ., Washington, DC (United States); DOE/OSTI
- Georgetown Univ., Washington, DC (United States)
- National Inst. of Standards and Technology (NIST), Gaithersburg, MD (United States)
A combined in situ electrochemical attenuated total reflection-surface enhanced IR absorption spectroscopy, microkinetic simulation, and density functional theory calculation study shows that not only can the adsorbed sulfide disproportionally affect the surface binding of OOH* (EOOH*) vs OH* (EOH*), i.e., breaking the original scaling relationship of pure metals (Ir, Pd, Pt, Au), to enhance oxygen reduction reaction (ORR) activity but can also be used as a reaction pathway alternating species to help deepen our mechanistic understanding of ORR.
- Research Organization:
- Georgetown Univ., Washington, DC (United States)
- Sponsoring Organization:
- USDOE Office of Science (SC)
- Grant/Contract Number:
- FG02-07ER15895
- OSTI ID:
- 1609802
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 4 Vol. 150; ISSN 0021-9606
- Publisher:
- American Institute of Physics (AIP)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Theory-guided design of catalytic materials using scaling relationships and reactivity descriptors
|
journal | November 2019 |
Special Topic on Interfacial Electrochemistry and Photo(electro)catalysis
|
journal | January 2019 |
Similar Records
Interfacial Water Manipulation with Ionic Liquids for the Oxygen Reduction Reaction
Improving Electrocatalysts for O2 Reduction by Fine-Tuning the Pt-Support Interaction: Pt Monolayer on the Surfaces of a Pd3Fe(111) Single-Crystal Alloy
Communication: Enhanced oxygen reduction reaction and its underlying mechanism in Pd-Ir-Co trimetallic alloys
Journal Article
·
2022
· ACS Catalysis
·
OSTI ID:2228285
+4 more
Improving Electrocatalysts for O2 Reduction by Fine-Tuning the Pt-Support Interaction: Pt Monolayer on the Surfaces of a Pd3Fe(111) Single-Crystal Alloy
Journal Article
·
2009
· Journal of American Chemical Society
·
OSTI ID:1040229
+5 more
Communication: Enhanced oxygen reduction reaction and its underlying mechanism in Pd-Ir-Co trimetallic alloys
Journal Article
·
2013
· Journal of Chemical Physics
·
OSTI ID:22251320
+4 more
Related Subjects
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Adsorption
Attenuated total reflection
Catalysis
Chemistry
Density functional theory
Fuel cells
Infrared absorption spectroscopy
Physics
Reaction mechanisms
Surface and interface chemistry Electrochemistry
Surface reactions
71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
Adsorption
Attenuated total reflection
Catalysis
Chemistry
Density functional theory
Fuel cells
Infrared absorption spectroscopy
Physics
Reaction mechanisms
Surface and interface chemistry Electrochemistry
Surface reactions