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  Stability and Activity of Non-Noble-Metal-Based Catalysts Toward the Hydrogen Evolution Reaction

Ledendecker, M., Mondschein, J. S., Kasian, O., Geiger, S., Göhl, D., Schalenbach, M., et al. (2017). Stability and Activity of Non-Noble-Metal-Based Catalysts Toward the Hydrogen Evolution Reaction. Angewandte Chemie International Edition, 56(33), 9767-9771. doi:10.1002/anie.201704021.

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Item Permalink: http://hdl.handle.net/11858/00-001M-0000-002E-88FD-8 Version Permalink: http://hdl.handle.net/21.11116/0000-0000-2682-2
Genre: Journal Article

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 Creators:
Ledendecker, Marc1, Author              
Mondschein, Jared S.2, Author              
Kasian, Olga3, Author              
Geiger, Simon3, Author              
Göhl, Daniel3, Author              
Schalenbach, Maximilian3, Author              
Žeradjanin, Aleksandar R.3, Author              
Cherevko, Serhiy3, 4, Author              
Schaak, Raymond E.2, Author              
Mayrhofer, Karl Johann Jakob3, 4, 5, Author              
Affiliations:
1Kolloidchemie, Max Planck Institute of Colloids and Interfaces, Max Planck Society, ou_1863288              
2Department of Chemistry and Materials Research Institute, The Pennsylvania State University, University Park, PA, USA, persistent22              
3Electrocatalysis, Interface Chemistry and Surface Engineering, Max-Planck-Institut für Eisenforschung GmbH, Max Planck Society, ou_1863354              
4Helmholtz-Institute Erlangen-Nuremberg for Renewable Energy (IEK-11), Forschungszentrum Jülich, Egerlandstrasse 3, 91058 Erlangen, Germany, ou_persistent22              
5Department of Chemical and Biological Engineering, Friedrich-Alexander-Universität Erlangen-Nürnberg, 91058 Erlangen, Germany, ou_persistent22              

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Free keywords: OXYGEN EVOLUTION; NICKEL PHOSPHIDE; EDGE SITES; ELECTROCATALYST; DISSOLUTION; PERFORMANCE; CELL; CORROSION; TUNGSTEN; FILMSChemistry; ceramics; electrocatalysis; hydrogen evolution; non-noble metals; water splitting;
 Abstract: A fundamental understanding of the behavior of non-noble based materials toward the hydrogen evolution reaction is crucial for the successful implementation into practical devices. Through the implementation of a highly sensitive inductively coupled plasma mass spectrometer coupled to a scanning flow cell, the activity and stability of nonnoble electrocatalysts is presented. The studied catalysts comprise a range of compositions, including metal carbides (WC), sulfides (MoS2), phosphides (Ni5P4, Co2P), and their base metals (W, Ni, Mo, Co); their activity, stability, and degradation behavior was elaborated and compared to the state-of-the-art catalyst platinum. The non-noble materials are stable at HER potentials but dissolve substantially when no current is flowing. Through pre-and post-characterization of the catalysts, explanations of their stability (thermodynamics and kinetics) are discussed, challenges for the application in real devices are analyzed, and strategies for circumventing dissolution are suggested. The precise correlation of metal dissolution with applied potential/current density allows for narrowing down suitable material choices as replacement for precious group metals as for example, platinum and opens up new ways in finding cost-efficient, active, and stable new-generation electrocatalysts.

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Language(s): eng - English
 Dates: 2017-08-07
 Publication Status: Published in print
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Method: Peer
 Identifiers: ISI: 000406798700018
DOI: 10.1002/anie.201704021
 Degree: -

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Title: Angewandte Chemie International Edition
  Other : Angew. Chem., Int. Ed.
  Other : Angewandte Chemie, International Edition
Source Genre: Journal
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Publ. Info: Weinheim : Wiley-VCH
Pages: - Volume / Issue: 56 (33) Sequence Number: - Start / End Page: 9767 - 9771 Identifier: ISSN: 1433-7851
CoNE: /journals/resource/1433-7851