Insight toward the role of Fe in layered Ni(OH)2 for electrochemical oxidations of water and 5-hydroxymethylfurfural

Bora Seo; Jongin Woo; Eunji Kim; Seok-Hyeon Cheong; Dong Ki Lee; Hyunjoo Lee

Catalysis Communications (Oct 2022)

Insight toward the role of Fe in layered Ni(OH)2 for electrochemical oxidations of water and 5-hydroxymethylfurfural

Bora Seo,
Jongin Woo,
Eunji Kim,
Seok-Hyeon Cheong,
Dong Ki Lee,
Hyunjoo Lee

Affiliations

Bora Seo: Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Hydrogen and Fuel Cell Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Division of Energy & Environment Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea; Corresponding authors at: Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.
Jongin Woo: Clean Energy Research Division, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Graduate School of Energy and Environment, Korea University, Seoul 02841, Republic of Korea
Eunji Kim: Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Department of Chemical and Biological Engineering, Korea University, Seoul 02841, Republic of Korea
Seok-Hyeon Cheong: Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Division of Energy & Environment Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea
Dong Ki Lee: Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Division of Energy & Environment Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea; Graduate School of Energy and Environment, Korea University, Seoul 02841, Republic of Korea; Department of Chemical and Biomolecular Engineering, Yonsei-KIST Convergence Research Institute, Yonsei University, Seoul, 03722, Republic of Korea; Corresponding authors at: Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.
Hyunjoo Lee: Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea; Division of Energy & Environment Technology, KIST School, University of Science and Technology, Seoul 02792, Republic of Korea; Corresponding authors at: Clean Energy Research Center, Korea Institute of Science and Technology (KIST), Seoul 02792, Republic of Korea.

Journal volume & issue: Vol. 170
p. 106501

Abstract

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5-hydroxymethylfurfural oxidation reaction (HMFOR) has been considered as promising anodic reaction alternating oxygen evolution reaction (OER). The introduction of Fe into layered nickel hydroxide has been effective strategy to enhance performance of OER as well as HMFOR. However, considering that HMFOR and OER are competitive with each other, it is hardly understandable how Fe simultaneously enhances both reactions. Herein, we provide an insight toward the role of Fe in the layered Ni(OH)2 in both oxidation reactions. While the OER activity of the layered Ni(OH)2 electrocatalyst has volcanic relation with Fe content, the HMFOR activity was highest in the Fe-free Ni(OH)2.

Published in Catalysis Communications

ISSN: 1566-7367 (Print); 1873-3905 (Online)
Publisher: Elsevier
Country of publisher: Netherlands
LCC subjects: Science: Chemistry
Website: https://www.journals.elsevier.com/catalysis-communications

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