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

Ledendecker M, Mondschein JS, Kasian O, Geiger S, Goehl D, Schalenbach M, Zeradjanin A, Cherevko S, Schaak RE, Mayrhofer K (2017)

Publication Status: Published

Publication Type: Journal article

Publication year: 2017

Journal

Angewandte Chemie International Edition Wiley

Publisher: WILEY-V C H VERLAG GMBH

Book Volume: 56

Pages Range: 9767-9771

Journal Issue: 33

DOI: 10.1002/anie.201704021

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.

Authors with CRIS profile

Karl Mayrhofer Lehrstuhl für Elektrokatalyse (HIERN)

Involved external institutions

Max-Planck-Institut für Eisenforschung GmbH (MPIE) / Max Planck Institute for Iron Research DE Germany (DE) Pennsylvania State University (Penn State) US United States (USA) (US)

How to cite

APA:

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

MLA:

Ledendecker, Marc, et al. "Stability and Activity of Non-Noble-Metal-Based Catalysts Toward the Hydrogen Evolution Reaction." Angewandte Chemie International Edition 56.33 (2017): 9767-9771.

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