Following ORR intermediates adsorbed on a Pt cathode catalyst during break-in of a PEM fuel cell by in operando X-ray absorption spectroscopy

Author:

Ramaker D. E.123,Korovina A.123,Croze V.456,Melke J.456,Roth C.456

Affiliation:

1. Chemistry Dept.

2. George Washington University

3. Washington, USA

4. Institute for Materials Science

5. Technische Universität Darmstadt

6. Darmstadt, Germany

Abstract

In operando X-ray absorption spectroscopy data using the Δμ X-ray Absorption Near Edge Spectroscopy (XANES) analysis procedure is used to follow the ORR intermediate adsorbate coverage on a working catalyst in a PEMFC during initial activation and break-in.

Publisher

Royal Society of Chemistry (RSC)

Subject

Physical and Theoretical Chemistry,General Physics and Astronomy

Reference55 articles.

1. P. W. Atkins , Physical Chemistry , W. H. Freeman and Co , 1986 , 3rd edn, p. 724

2. Ex situ testing method to characterize cathode catalysts degradation under simulated start-up/shut-down conditions – A contribution to polymer electrolyte membrane fuel cell benchmarking

3. Dissolution and Migration of Platinum in PEMFCs Investigated for Start/Stop Cycling and High Potential Degradation

4. Electrochemical Test Procedures for Accelerated Evaluation of Fuel Cell Cathode Catalyst Degradation

5. A. Kongkanand , 2013 Annual Merit Review, US Department of Energy Hydrogen and Fuel Cells Program, accessed January 6, 2014, http://www.hydrogen.energy.gov/pdfs/review13/fc087_kongkanand_2013_o.pdf

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