Issue 38, 2020

Operando X-ray absorption spectroscopy of hyperfine β-FeOOH nanorods modified with amorphous Ni(OH)2 under electrocatalytic water oxidation conditions

Abstract

Operando X-ray absorption spectroscopy was employed to study an active electrocatalyst, hyperfine β-FeOOH nanorods (∅ 3 × 15 nm) surface-modified with amorphous Ni hydroxide. The nearest neighbor structure and valence of Fe3+ ions did not change under water oxidation conditions, while changes in the nearest neighbor ordering of Ni2+ ions and a reversible transition to Ni3+ were observed in accordance with the electrical bias for the reaction.

Graphical abstract: Operando X-ray absorption spectroscopy of hyperfine β-FeOOH nanorods modified with amorphous Ni(OH)2 under electrocatalytic water oxidation conditions

Supplementary files

Article information

Article type
Communication
Submitted
26 jan 2020
Accepted
30 mar 2020
First published
01 apr 2020

Chem. Commun., 2020,56, 5158-5161

Operando X-ray absorption spectroscopy of hyperfine β-FeOOH nanorods modified with amorphous Ni(OH)2 under electrocatalytic water oxidation conditions

T. Morikawa, S. Gul, Y. F. Nishimura, T. M. Suzuki and J. Yano, Chem. Commun., 2020, 56, 5158 DOI: 10.1039/D0CC00692K

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