From an Fe2P3 complex to FeP nanoparticles as efficient electrocatalysts for water-splitting

Yao S, Forstner V, Menezes PW, Panda C, Mebs S, Zolnhofer E, Miehlich M, Szilvasi T, Kumar NA, Haumann M, Meyer K, Grutzmacher H, Driess M (2018)

Publication Type: Journal article

Publication year: 2018

Journal

Chemical Science Royal Society of Chemistry

Book Volume: 9

Pages Range: 8590-8597

Journal Issue: 45

DOI: 10.1039/c8sc03407a

Abstract

In large-scale, hydrogen production from water-splitting represents the most promising solution for a clean, recyclable, and low-cost energy source. The realization of viable technological solutions requires suitable efficient electrochemical catalysts with low overpotentials and long-term stability for both hydrogen evolution reaction (HER) and oxygen evolution reaction (OER) based on cheap and nontoxic materials. Herein, we present a unique molecular approach to monodispersed, ultra-small, and superiorly active iron phosphide (FeP) electrocatalysts for bifunctional OER, HER, and overall water-splitting. They result from transformation of a molecular iron phosphide precursor, containing a [Fe2P3] core with mixed-valence FeIIFeIII sites bridged by an asymmetric cyclo-P(2+1) 3- ligand. The as-synthesized FeP nanoparticles act as long-lasting electrocatalysts for OER and HER with low overpotential and high current densities that render them one of the best-performing electrocatalysts hitherto known. The fabricated alkaline electrolyzer delivered low cell voltage with durability over weeks, representing an attractive catalyst for large-scale water-splitting technologies.

Authors with CRIS profile

Eva Zolnhofer Lehrstuhl für Anorganische und Allgemeine Chemie Matthias Miehlich Lehrstuhl für Anorganische und Allgemeine Chemie Karsten Meyer Lehrstuhl für Anorganische und Allgemeine Chemie

Involved external institutions

Technische Universität Berlin DE Germany (DE) Freie Universität Berlin DE Germany (DE) University of Wisconsin - Madison US United States (USA) (US) University of Queensland AU Australia (AU) École Polytechnique Fédérale de Lausanne (EPFL) CH Switzerland (CH)

How to cite

APA:

Yao, S., Forstner, V., Menezes, P.W., Panda, C., Mebs, S., Zolnhofer, E.,... Driess, M. (2018). From an Fe2P3 complex to FeP nanoparticles as efficient electrocatalysts for water-splitting. Chemical Science, 9(45), 8590-8597. https://dx.doi.org/10.1039/c8sc03407a

MLA:

Yao, Shenglai, et al. "From an Fe2P3 complex to FeP nanoparticles as efficient electrocatalysts for water-splitting." Chemical Science 9.45 (2018): 8590-8597.

BibTeX: Download