Designing high performance Pt monolayer core–shell electrocatalysts for fuel cells
Journal Article
·
· Current Opinion in Electrochemistry
- Brookhaven National Lab. (BNL), Upton, NY (United States). Chemistry Department
In proton exchange membrane fuel cells, platinum (Pt) has been the dominant choice for both the cathode and the anode catalysts. The high Pt content and high associated costs particularly at the cathode, and sluggish oxygen reduction reaction (ORR) kinetics and poor stability, remain a challenge. Pt monolayer (ML) catalysts offer a distinctively reduced Pt content while providing considerable possibilities for enhancing their catalytic activity and stability for the ORR. Here, we first review the achievement in active and stable Pt ML on palladium (Pd) nanoparticle catalysts for the ORR. We then describe the mechanisms that rationalize their high activity and durability. Recently, we developed several novel nanostructured cores to further improve the ORR activity and stability by optimizing their surface orientation, composition, and morphology. The results from the Pt ML catalysts significantly impact the research of electrocatalysis and fuel-cell technology, as they demonstrate an exceptionally effective way of design and syntheses of catalysts.
- Research Organization:
- Brookhaven National Laboratory (BNL), Upton, NY (United States)
- Sponsoring Organization:
- USDOE Office of Energy Efficiency and Renewable Energy (EERE), Fuel Cell Technologies Program
- Grant/Contract Number:
- SC0012704
- OSTI ID:
- 1650008
- Alternate ID(s):
- OSTI ID: 1690087
- Report Number(s):
- BNL--216276-2020-JAAM
- Journal Information:
- Current Opinion in Electrochemistry, Journal Name: Current Opinion in Electrochemistry Vol. 21; ISSN 2451-9103
- Publisher:
- ElsevierCopyright Statement
- Country of Publication:
- United States
- Language:
- English
Similar Records
Recent Advances in Developing Platinum Monolayer Electrocatalysts for the O2 Reduction Reaction
Highly Dispersed Carbon Supported PdNiMo Core with Pt Monolayer Shell Electrocatalysts for Oxygen Reduction Reaction
Recent Advances in Pt Monolayer Electrocatalysts for Oxygen Reduction Reaction: Scale-up Synthesis, Structure, and Activity of Pt Shells on Pd Cores
Conference
·
Mon Sep 15 00:00:00 EDT 2008
·
OSTI ID:937157
Highly Dispersed Carbon Supported PdNiMo Core with Pt Monolayer Shell Electrocatalysts for Oxygen Reduction Reaction
Journal Article
·
Sun Mar 25 20:00:00 EDT 2018
· ECS Transactions (Online)
·
OSTI ID:1485439
Recent Advances in Pt Monolayer Electrocatalysts for Oxygen Reduction Reaction: Scale-up Synthesis, Structure, and Activity of Pt Shells on Pd Cores
Journal Article
·
Thu Dec 31 23:00:00 EST 2009
· Electrochimica Acta
·
OSTI ID:989151