Mesoporous Iron Sulfide for Highly Efficient Electrocatalytic Hydrogen Evolution.

Miao, Ran; Dutta, Biswanath; Sahoo, Sanjubala; He, Junkai; Zhong, Wei; Cetegen, Shaylin A; Jiang, Ting; Alpay, S Pamir; Suib, Steven L

Miao, Ran; Dutta, Biswanath; Sahoo, Sanjubala; He, Junkai; Zhong, Wei; Cetegen, Shaylin A; Jiang, Ting; Alpay, S Pamir; Suib, Steven L.

Afiliação

Miao R; Department of Chemistry, U-3060, University of Connecticut , Storrs, Connecticut 06269, United States.
Dutta B; Department of Chemistry, U-3060, University of Connecticut , Storrs, Connecticut 06269, United States.
Sahoo S; Institute of Materials Science, U-3136, University of Connecticut , Storrs, Connecticut 06269, United States.
He J; Department of Materials Science & Engineering, Unit-3136, University of Connecticut , Storrs, Connecticut 06269, United States.
Zhong W; Institute of Materials Science, U-3136, University of Connecticut , Storrs, Connecticut 06269, United States.
Cetegen SA; Institute of Materials Science, U-3136, University of Connecticut , Storrs, Connecticut 06269, United States.
Jiang T; Department of Chemical and Biomolecular Engineering, Unit-3222, University of Connecticut , Storrs, Connecticut 06269, United States.
Alpay SP; Department of Chemical and Biomolecular Engineering, Unit-3222, University of Connecticut , Storrs, Connecticut 06269, United States.
Suib SL; Institute of Materials Science, U-3136, University of Connecticut , Storrs, Connecticut 06269, United States.

J Am Chem Soc ; 139(39): 13604-13607, 2017 10 04.

Article em En | MEDLINE | ID: mdl-28871790

ABSTRACT

ABSTRACT

We report a facile synthetic protocol to prepare mesoporous FeS2 without the aid of hard template as an electrocatalyst for the hydrogen evolution reaction (HER). The mesoporous FeS2 materials with high surface area were successfully prepared by a sol-gel method following a sulfurization treatment in an H2S atmosphere. A remarkable HER catalytic performance was achieved with a low overpotential of 96 mV at a current density of 10 mA·cm-2 and a Tafel slope of 78 mV per decade under alkaline conditions (pH 13). The theoretical calculations indicate that the excellent catalytic activity of mesoporous FeS2 is attributed to the exposed (210) facets. The mesoporous FeS2 material might be a promising alternative to the Pt-based electrocatalysts for water splitting.

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Texto completo: 1 Coleções: 01-internacional Temas: Agentes_cancerigenos Base de dados: MEDLINE Tipo de estudo: Guideline Idioma: En Revista: J Am Chem Soc Ano de publicação: 2017 Tipo de documento: Article País de afiliação: Estados Unidos

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