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Title: Ordered CoPt oxygen reduction catalyst with high performance and durability

Journal Article · · Chem Catalysis

A high-performance and durable polymer electrolyte membrane fuel cell cathode catalyst composed of an ordered L10–CoPt core and a thin Pt shell was designed and prepared. Under practical fuel cell membrane electrode assembly testing conditions, the cathode catalyst showed an outstanding initial mass activity of 0.6 A/mgPt, which satisfies the U.S. Department of Energy performance target while also meeting the durability target of less than 40% loss in mass activity after 30,000 accelerated stress test voltage cycles. The high structural stability of the L10–CoPt@Pt-shell catalyst was confirmed by postmortem materials characterization, and the origin of this robustness was revealed by density functional theory calculations, where the barriers for diffusion of Co atoms were observed to be significantly increased in the ordered intermetallic core.

Research Organization:
Oak Ridge National Lab. (ORNL), Oak Ridge, TN (United States); Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Argonne National Lab. (ANL), Argonne, IL (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE); USDOE Laboratory Directed Research and Development (LDRD) Program
Grant/Contract Number:
AC05-00OR22725; AC02-06CH11357
OSTI ID:
1907227
Journal Information:
Chem Catalysis, Vol. 2, Issue 12; ISSN 2667-1093
Publisher:
Cell PressCopyright Statement
Country of Publication:
United States
Language:
English

References (39)

Synergistic Bimetallic Metallic Organic Framework-Derived Pt–Co Oxygen Reduction Electrocatalysts journal September 2020
Tungsten‐Doped L1 0 ‐PtCo Ultrasmall Nanoparticles as a High‐Performance Fuel Cell Cathode journal October 2019
ATHENA , ARTEMIS , HEPHAESTUS : data analysis for X-ray absorption spectroscopy using IFEFFIT journal June 2005
Conversion of PtNi alloy from disordered to ordered for enhanced activity and durability in methanol-tolerant oxygen reduction reactions journal August 2015
Efficient oxygen reduction catalysis by subnanometer Pt alloy nanowires journal February 2017
Durability of Pt-Co Alloy Polymer Electrolyte Fuel Cell Cathode Catalysts under Accelerated Stress Tests journal January 2018
The Priority and Challenge of High-Power Performance of Low-Platinum Proton-Exchange Membrane Fuel Cells journal March 2016
Record activity and stability of dealloyed bimetallic catalysts for proton exchange membrane fuel cells journal January 2015
Electrochemical dissolution of surface alloys in acids: Thermodynamic trends from first-principles calculations journal May 2007
Achievements, challenges and perspectives on cathode catalysts in proton exchange membrane fuel cells for transportation journal July 2019
Engineering bunched Pt-Ni alloy nanocages for efficient oxygen reduction in practical fuel cells journal November 2019
Boosting Fuel Cell Performance with Accessible Carbon Mesopores journal February 2018
Achieving High-Power PEM Fuel Cell Performance with an Ultralow-Pt-Content Core–Shell Catalyst journal February 2016
Highly Crystalline Multimetallic Nanoframes with Three-Dimensional Electrocatalytic Surfaces journal February 2014
3D carbon aerogel-supported PtNi intermetallic nanoparticles with high metal loading as a durable oxygen reduction electrocatalyst journal October 2017
Activity benchmarks and requirements for Pt, Pt-alloy, and non-Pt oxygen reduction catalysts for PEMFCs journal March 2005
Highly Durable and Active PtCo Alloy/Graphitized Carbon Black Cathode Catalysts by Controlled Deposition of Stabilized Pt Skin Layers journal January 2016
Unlocking the door to highly active ORR catalysts for PEMFC applications: polyhedron-engineered Pt-based nanocrystals journal January 2018
Impact of Carbon Support Structure on the Durability of PtCo Electrocatalysts journal May 2021
High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction journal June 2015
Catalysts by Platonic design journal July 2015
Mechanism for Self-Diffusion in Metallic Copper journal March 1942
New roads and challenges for fuel cells in heavy-duty transportation journal March 2021
Improved adsorption energetics within density-functional theory using revised Perdew-Burke-Ernzerhof functionals journal March 1999
Electronic structure calculations with GPAW: a real-space implementation of the projector augmented-wave method journal June 2010
Platinum‐Based Nanowires as Active Catalysts toward Oxygen Reduction Reaction: In Situ Observation of Surface‐Diffusion‐Assisted, Solid‐State Oriented Attachment journal October 2017
The stability of Pt–M (M=first row transition metal) alloy catalysts and its effect on the activity in low temperature fuel cells journal October 2006
Ultrafine jagged platinum nanowires enable ultrahigh mass activity for the oxygen reduction reaction journal November 2016
A climbing image nudged elastic band method for finding saddle points and minimum energy paths journal December 2000
Theoretical x-ray absorption fine structure standards journal July 1991
1H, 15N and 13C resonance assignments of a repetitive domain of tubuliform spidroin 2 journal August 2021
Ultralow-loading platinum-cobalt fuel cell catalysts derived from imidazolate frameworks journal November 2018
Surface engineering of hierarchical platinum-cobalt nanowires for efficient electrocatalysis journal June 2016
Ordered Pt 3 Co Intermetallic Nanoparticles Derived from Metal–Organic Frameworks for Oxygen Reduction journal June 2018
Facile Synthesis of PtNi Intermetallic Nanoparticles: Influence of Reducing Agent and Precursors on Electrocatalytic Activity journal March 2011
Structure Design Reveals the Role of Au for ORR Catalytic Performance Optimization in PtCo‐Based Catalysts journal April 2020
Strong electrostatic adsorption approach to the synthesis of sub-three nanometer intermetallic platinum–cobalt oxygen reduction catalysts journal January 2021
Tuning the Electrocatalytic Oxygen Reduction Reaction Activity of Pt–Co Nanocrystals by Cobalt Concentration with Atomic-Scale Understanding journal July 2019
Durability of De-Alloyed Platinum-Nickel Cathode Catalyst in Low Platinum Loading Membrane-Electrode Assemblies Subjected to Accelerated Stress Tests journal January 2018

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