Integrating PtCo Intermetallic with Highly Graphitized Carbon Toward Durable Oxygen Electroreduction in Proton Exchange Membrane Fuel Cells
Nanchang University · Jiangxi Normal University · +3 more institutions
Abstract
Abstract Exploiting robust and high‐efficiency electrocatalysts for sluggish oxygen reduction reaction (ORR) is essential for proton exchange membrane fuel cells (PEMFCs) toward long‐term operation for practical applications, yet remains challenging. Herein, the ordered PtCo intermetallic is reported with a Pt‐rich shell loaded on a highly graphitized carbon carrier (O‐PtCo@GCoNC) prepared by an impregnation annealing strategy. Systematic X‐ray spectroscopic, operando electrochemical techniques and theoretical calculations reveal that thanks to the synergistic interaction of the core–shell PtCo intermetallic structure with a tailor‐made Pt electronic configuration and highly graphitized carbon, O‐PtCo@GCoNC…
Citation impact
- FWCI
- 16.88
- Percentile
- 100%
- References
- 83
Authors
10Topics & keywords
- Intermetallic
- Materials science
- Proton exchange membrane fuel cell
- Electrochemistry
- Catalysis
- Cathode
- Annealing (glass)
- Chemical engineering