Integration of active nickel oxide clusters by amino acids for water oxidation

Masaaki Yoshida, Sho Onishi, Yosuke Mitsutomi, Futaba Yamamoto, Masanari Nagasaka, Hayato Yuzawa, Nobuhiro Kosugi, Hiroshi Kondoh

Research output: Contribution to journalArticle

4 Citations (Scopus)

Abstract

The move toward sustainable hydrogen production from water using renewable energy, a highly efficient oxygen evolution electrocatalyst, is crucial because watersplitting efficiency is restricted to the oxygen evolution capability, which is insufficient compared to the hydrogen evolution reaction. Herein, we report a new method that improves the oxygen evolution activity by integration of active nickel oxide clusters using amino acids, meaning that the amount of electrodeposited nickel oxides is increasing with maintaining the catalytic activity. This method enhances the catalytic activity because the reaction sites drastically increase in three dimensions. The detailed reaction mechanism was investigated using operando UV/vis absorption and Ni K-edge X-ray absorption spectroscopic techniques, which suggested that amino acids such as glycine, alanine, and glutamine promoted the electrodeposition of NiO6 octahedral structure clusters. Meanwhile, the analysis of N and O K-edge X-ray absorption spectra showed that the amino acid (glycine) in the nickel electrocatalyst was present in the molecular state. Therefore, it was spectroscopically demonstrated that amino acids are bound to nickel oxide clusters accompanied by oxygen evolution activity.

Original languageEnglish
JournalJournal of Physical Chemistry C
Volume121
Issue number1
DOIs
Publication statusPublished - 2017 Jan 1

Fingerprint

Nickel oxide
nickel oxides
amino acids
Amino acids
Oxygen
Amino Acids
Oxidation
oxidation
Water
Electrocatalysts
X ray absorption
Glycine
water
electrocatalysts
oxygen
Catalyst activity
glycine
catalytic activity
glutamine
Hydrogen production

ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Energy(all)
  • Physical and Theoretical Chemistry
  • Surfaces, Coatings and Films

Cite this

Integration of active nickel oxide clusters by amino acids for water oxidation. / Yoshida, Masaaki; Onishi, Sho; Mitsutomi, Yosuke; Yamamoto, Futaba; Nagasaka, Masanari; Yuzawa, Hayato; Kosugi, Nobuhiro; Kondoh, Hiroshi.

In: Journal of Physical Chemistry C, Vol. 121, No. 1, 01.01.2017.

Research output: Contribution to journalArticle

Yoshida, M, Onishi, S, Mitsutomi, Y, Yamamoto, F, Nagasaka, M, Yuzawa, H, Kosugi, N & Kondoh, H 2017, 'Integration of active nickel oxide clusters by amino acids for water oxidation', Journal of Physical Chemistry C, vol. 121, no. 1. https://doi.org/10.1021/acs.jpcc.6b08796
Yoshida, Masaaki ; Onishi, Sho ; Mitsutomi, Yosuke ; Yamamoto, Futaba ; Nagasaka, Masanari ; Yuzawa, Hayato ; Kosugi, Nobuhiro ; Kondoh, Hiroshi. / Integration of active nickel oxide clusters by amino acids for water oxidation. In: Journal of Physical Chemistry C. 2017 ; Vol. 121, No. 1.
@article{e56ecbbbe2d9427f89ac56b63d5b123d,
title = "Integration of active nickel oxide clusters by amino acids for water oxidation",
abstract = "The move toward sustainable hydrogen production from water using renewable energy, a highly efficient oxygen evolution electrocatalyst, is crucial because watersplitting efficiency is restricted to the oxygen evolution capability, which is insufficient compared to the hydrogen evolution reaction. Herein, we report a new method that improves the oxygen evolution activity by integration of active nickel oxide clusters using amino acids, meaning that the amount of electrodeposited nickel oxides is increasing with maintaining the catalytic activity. This method enhances the catalytic activity because the reaction sites drastically increase in three dimensions. The detailed reaction mechanism was investigated using operando UV/vis absorption and Ni K-edge X-ray absorption spectroscopic techniques, which suggested that amino acids such as glycine, alanine, and glutamine promoted the electrodeposition of NiO6 octahedral structure clusters. Meanwhile, the analysis of N and O K-edge X-ray absorption spectra showed that the amino acid (glycine) in the nickel electrocatalyst was present in the molecular state. Therefore, it was spectroscopically demonstrated that amino acids are bound to nickel oxide clusters accompanied by oxygen evolution activity.",
author = "Masaaki Yoshida and Sho Onishi and Yosuke Mitsutomi and Futaba Yamamoto and Masanari Nagasaka and Hayato Yuzawa and Nobuhiro Kosugi and Hiroshi Kondoh",
year = "2017",
month = "1",
day = "1",
doi = "10.1021/acs.jpcc.6b08796",
language = "English",
volume = "121",
journal = "Journal of Physical Chemistry C",
issn = "1932-7447",
publisher = "American Chemical Society",
number = "1",

}

TY - JOUR

T1 - Integration of active nickel oxide clusters by amino acids for water oxidation

AU - Yoshida, Masaaki

AU - Onishi, Sho

AU - Mitsutomi, Yosuke

AU - Yamamoto, Futaba

AU - Nagasaka, Masanari

AU - Yuzawa, Hayato

AU - Kosugi, Nobuhiro

AU - Kondoh, Hiroshi

PY - 2017/1/1

Y1 - 2017/1/1

N2 - The move toward sustainable hydrogen production from water using renewable energy, a highly efficient oxygen evolution electrocatalyst, is crucial because watersplitting efficiency is restricted to the oxygen evolution capability, which is insufficient compared to the hydrogen evolution reaction. Herein, we report a new method that improves the oxygen evolution activity by integration of active nickel oxide clusters using amino acids, meaning that the amount of electrodeposited nickel oxides is increasing with maintaining the catalytic activity. This method enhances the catalytic activity because the reaction sites drastically increase in three dimensions. The detailed reaction mechanism was investigated using operando UV/vis absorption and Ni K-edge X-ray absorption spectroscopic techniques, which suggested that amino acids such as glycine, alanine, and glutamine promoted the electrodeposition of NiO6 octahedral structure clusters. Meanwhile, the analysis of N and O K-edge X-ray absorption spectra showed that the amino acid (glycine) in the nickel electrocatalyst was present in the molecular state. Therefore, it was spectroscopically demonstrated that amino acids are bound to nickel oxide clusters accompanied by oxygen evolution activity.

AB - The move toward sustainable hydrogen production from water using renewable energy, a highly efficient oxygen evolution electrocatalyst, is crucial because watersplitting efficiency is restricted to the oxygen evolution capability, which is insufficient compared to the hydrogen evolution reaction. Herein, we report a new method that improves the oxygen evolution activity by integration of active nickel oxide clusters using amino acids, meaning that the amount of electrodeposited nickel oxides is increasing with maintaining the catalytic activity. This method enhances the catalytic activity because the reaction sites drastically increase in three dimensions. The detailed reaction mechanism was investigated using operando UV/vis absorption and Ni K-edge X-ray absorption spectroscopic techniques, which suggested that amino acids such as glycine, alanine, and glutamine promoted the electrodeposition of NiO6 octahedral structure clusters. Meanwhile, the analysis of N and O K-edge X-ray absorption spectra showed that the amino acid (glycine) in the nickel electrocatalyst was present in the molecular state. Therefore, it was spectroscopically demonstrated that amino acids are bound to nickel oxide clusters accompanied by oxygen evolution activity.

UR - http://www.scopus.com/inward/record.url?scp=85031693226&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=85031693226&partnerID=8YFLogxK

U2 - 10.1021/acs.jpcc.6b08796

DO - 10.1021/acs.jpcc.6b08796

M3 - Article

AN - SCOPUS:85031693226

VL - 121

JO - Journal of Physical Chemistry C

JF - Journal of Physical Chemistry C

SN - 1932-7447

IS - 1

ER -