skip to main content
OSTI.GOV title logo U.S. Department of Energy
Office of Scientific and Technical Information

Title: Editors' Choice—Electrochemically Active Surface Area Measurement of Aged Pt Alloy Catalysts in PEM Fuel Cells by CO Stripping

Journal Article · · Journal of the Electrochemical Society
DOI:https://doi.org/10.1149/2.0381702jes· OSTI ID:1425404
 [1];  [2];  [2];  [2]
  1. General Motors Global Product Development, Pontiac, MI (United States); Univ. of South Carolina, Columbia, SC (United States)
  2. General Motors Global Product Development, Pontiac, MI (United States)

The use of hydrogen adsorption/desorption (HAD) is a convenient method to measure the Pt surface area of a catalyst. However, it was shown that electrochemical charges measured by this technique can underestimate the Pt surface area by up to a factor of two for small Pt nanoparticles or Pt alloy nanoparticles. Electrooxidation of CO, so-called CO stripping, has been shown to be more accurate. Yet measurements of CO stripping in MEAs are scarce, especially on high activity alloy catalysts. In this study we investigated CO stripping and the ratio between Pt surface areas measured by CO and by HAD on several Pt and Pt alloy catalysts. The effects on these measurements of temperature and catalyst aging by voltage cycling are discussed.

Research Organization:
General Motors, Inc., Pontiac, MI (United States)
Sponsoring Organization:
USDOE Office of Energy Efficiency and Renewable Energy (EERE), Sustainable Transportation Office. Hydrogen Fuel Cell Technologies Office
Grant/Contract Number:
EE0007271
OSTI ID:
1425404
Journal Information:
Journal of the Electrochemical Society, Vol. 164, Issue 2; ISSN 0013-4651
Publisher:
The Electrochemical SocietyCopyright Statement
Country of Publication:
United States
Language:
English
Citation Metrics:
Cited by: 57 works
Citation information provided by
Web of Science

References (43)

Mechanism of CO Oxidation on Pt(111) in Alkaline Media journal May 2006
Solvothermal Synthesis of Platinum Alloy Nanoparticles for Oxygen Reduction Electrocatalysis journal May 2012
Low Cost Electrodes for Proton Exchange Membrane Fuel Cells journal January 1997
The Priority and Challenge of High-Power Performance of Low-Platinum Proton-Exchange Membrane Fuel Cells journal March 2016
Instability of Pt∕C Electrocatalysts in Proton Exchange Membrane Fuel Cells journal January 2005
Record activity and stability of dealloyed bimetallic catalysts for proton exchange membrane fuel cells journal January 2015
Adsorption of hydrogen on Pt(111) and Pt(100) surfaces and its role in the HOR journal October 2008
Achieving High-Power PEM Fuel Cell Performance with an Ultralow-Pt-Content Core–Shell Catalyst journal February 2016
The Impact of Platinum Loading on Oxygen Transport Resistance journal January 2012
Highly Crystalline Multimetallic Nanoframes with Three-Dimensional Electrocatalytic Surfaces journal February 2014
Size effects on reactivity of Pt nanoparticles in CO monolayer oxidation: The role of surface mobility journal January 2004
Study of temperature, air dew point temperature and reactant flow effects on proton exchange membrane fuel cell performances using electrochemical spectroscopy and voltammetry techniques journal February 2010
Oxidation of carbon monoxide and formic acid on bulk and nanosized Pt–Co alloys journal April 2011
Atomic-Resolution Spectroscopic Imaging of Ensembles of Nanocatalyst Particles Across the Life of a Fuel Cell journal December 2011
Synthesis and Oxygen Reduction Activity of Shape-Controlled Pt 3 Ni Nanopolyhedra journal February 2010
High-performance transition metal-doped Pt3Ni octahedra for oxygen reduction reaction journal June 2015
Stripping voltammetry of carbon monoxide oxidation on stepped platinum single-crystal electrodes in alkaline solution journal January 2008
Effect of Temperature on Surface Processes at the Pt(111)−Liquid Interface:  Hydrogen Adsorption, Oxide Formation, and CO Oxidation journal October 1999
The Role of OOH Binding Site and Pt Surface Structure on ORR Activities journal January 2014
Comparative analysis of the electroactive area of Pt/C PEMFC electrodes in liquid and solid polymer contact by underpotential hydrogen adsorption/desorption journal June 2009
Element-specific anisotropic growth of shaped platinum alloy nanocrystals journal December 2014
Measurement of oxygen reduction activities via the rotating disc electrode method: From Pt model surfaces to carbon-supported high surface area catalysts journal February 2008
Truncated Octahedral Pt 3 Ni Oxygen Reduction Reaction Electrocatalysts journal April 2010
New evaluation method for the effectiveness of platinum/carbon electrocatalysts under operating conditions journal December 2010
Carbon Monoxide-Induced Stability and Atomic Segregation Phenomena in Shape-Selected Octahedral PtNi Nanoparticles journal October 2015
Transient Platinum Oxide Formation and Oxygen Reduction on Carbon-Supported Platinum and Platinum-Alloy Electrocatalysts conference January 2011
Artifacts in Measuring Electrode Catalyst Area of Fuel Cells through Cyclic Voltammetry conference January 2007
Kinetics of Oxygen Reduction on Pt(hkl) Electrodes: Implications for the Crystallite Size Effect with Supported Pt Electrocatalysts journal January 1997
Spectroscopic in situ Measurements of the Relative Pt Skin Thicknesses and Porosities of Dealloyed PtM n (Ni, Co) Electrocatalysts journal December 2014
Synthesis and Characterization of 9 nm Pt–Ni Octahedra with a Record High Activity of 3.3 A/mg Pt for the Oxygen Reduction Reaction journal June 2013
Particle size and structural effects in platinum electrocatalysis journal July 1990
Unique Electrochemical Adsorption Properties of Pt-Skin Surfaces journal February 2012
Effect of particle size on the electrocatalysis by carbon-supported Pt electrocatalysts: an in situ XAS investigation journal May 1998
Electrocatalysis on Platinum Nanoparticles: Particle Size Effect on Oxygen Reduction Reaction Activity journal September 2011
Electronic Structures of Pt−Co and Pt−Ru Alloys for CO-Tolerant Anode Catalysts in Polymer Electrolyte Fuel Cells Studied by EC−XPS journal November 2006
Relative Humidity Dependence of Pt Utilization in Polymer Electrolyte Fuel Cell Electrodes: Effects of Electrode Thickness, Ionomer-to-Carbon Ratio, Ionomer Equivalent Weight, and Carbon Support journal January 2011
Shape and Composition-Controlled Platinum Alloy Nanocrystals Using Carbon Monoxide as Reducing Agent journal February 2011
Electrochemical surface area measurements of platinum- and palladium-based nanoparticles journal June 2013
Solid-State Chemistry-Enabled Scalable Production of Octahedral Pt–Ni Alloy Electrocatalyst for Oxygen Reduction Reaction journal May 2014
Atomic Structure of Pt 3 Ni Nanoframe Electrocatalysts by in Situ X-ray Absorption Spectroscopy journal December 2015
CO Tolerance of Pt alloy electrocatalysts for polymer electrolyte fuel cells and the detoxification mechanism journal January 2001
Temperature-Dependent Hydrogen Electrochemistry on Platinum Low-Index Single-Crystal Surfaces in Acid Solutions journal July 1997
Circumventing Metal Dissolution Induced Degradation of Pt-Alloy Catalysts in Proton Exchange Membrane Fuel Cells: Revealing the Asymmetric Volcano Nature of Redox Catalysis journal January 2016

Cited By (18)

Alloy Nanocatalysts for the Electrochemical Oxygen Reduction (ORR) and the Direct Electrochemical Carbon Dioxide Reduction Reaction (CO 2 RR) journal December 2018
Pitfalls in Heterogeneous Thermal, Electro‐ and Photocatalysis journal April 2019
Electrocatalytic Study of Ethylene Glycol Oxidation on Pt 3 Sn Alloy Nanoparticles journal December 2018
Fuel Cell Measurements with Cathode Catalysts of Sputtered Pt 3 Y Thin Films journal April 2018
Determination of Specific Electrocatalytic Sites in the Oxidation of Small Molecules on Crystalline Metal Surfaces journal January 2019
Electrochemical processes on solid shaped nanoparticles with defined facets journal January 2018
Enhanced oxygen reduction activity of platinum subnanocluster catalysts through charge redistribution journal January 2019
A highly durable carbon-nanofiber-supported Pt–C core–shell cathode catalyst for ultra-low Pt loading proton exchange membrane fuel cells: facile carbon encapsulation journal January 2019
Catalytic electrooxidation of formic acid by noble metal nanoparticle catalysts on reduced graphene oxide journal August 2019
Cathode Loading Impact on Voltage Cycling Induced PEMFC Degradation: A Voltage Loss Analysis journal January 2018
Mitigation of PEM Fuel Cell Catalyst Degradation with Porous Carbon Supports journal January 2019
Editors' Choice—Connecting Fuel Cell Catalyst Nanostructure and Accessibility Using Quantitative Cryo-STEM Tomography journal January 2018
Ir-Ni Bimetallic OER Catalysts Prepared by Controlled Ni Electrodeposition on Irpoly and Ir(111) journal December 2018
Catalytic electrooxidation of formic acid by noble metal nanoparticle catalysts on reduced graphene oxide text January 2019
Fuel Cell Measurements with Cathode Catalysts of Sputtered Pt 3 Y Thin Films journal May 2018
Pitfalls in Heterogeneous Thermal, Electro‐ and Photocatalysis text January 2021
Catalytic electrooxidation of formic acid by noble metal nanoparticle catalysts on reduced graphene oxide text January 2019
Particle Size-Controlled Growth of Carbon-Supported Platinum Nanoparticles (Pt/C) through Water-Assisted Polyol Synthesis journal September 2019

Figures / Tables (5)


Similar Records

Characterization of PEM fuel cell membrane-electrode-assemblies by electrochemical methods and microanalysis
Conference · Fri Sep 01 00:00:00 EDT 1995 · OSTI ID:1425404

Catalysis of CO electrooxidation at Pt, Ru, and PtRu alloy. An in situ FTIR study
Journal Article · Thu Apr 22 00:00:00 EDT 1999 · Journal of Physical Chemistry B: Materials, Surfaces, Interfaces, amp Biophysical · OSTI ID:1425404

High-Current Density Durability of Pt/C and PtCo/C Catalysts at Similar Particle Sizes in PEMFCs
Journal Article · Mon Feb 22 00:00:00 EST 2021 · Journal of the Electrochemical Society · OSTI ID:1425404

Related Subjects