Application of an iridium complex for detecting hydrogen permeation through pure iron

Saya Ajito; Tomohiko Hojo; Motomichi Koyama; Ken ichi Fujita; Eiji Akiyama

doi:10.1016/j.ijhydene.2020.06.113

Application of an iridium complex for detecting hydrogen permeation through pure iron

Saya Ajito, Tomohiko Hojo, Motomichi Koyama, Ken ichi Fujita, Eiji Akiyama

Materials Design Division

Research output: Contribution to journal › Article › peer-review

9 Citations (Scopus)

Abstract

Hydrogen embrittlement of high strength steel is seriously concerned and hydrogen visualization techniques in metals are strongly required to investigate the mechanism of hydrogen embrittlement. In this study, an in situ technique for hydrogen visualization in metals using aqua(2,2′-bipyridine-6,6′-dionato)(pentamethylcyclopentadienyl)iridium(III) (hereafter, Ir complex) has been developed. Hydrogen permeated through palladium-plated iron reacted with the Ir complex leading to the color change of the Ir complex. Furthermore, the flux of hydrogen could be quantitatively obtained from the changes in the RGB color values of the Ir complex. These results indicate that the Ir complex can be used for in-situ hydrogen visualization in metals.

Original language	English
Pages (from-to)	25580-25586
Number of pages	7
Journal	International Journal of Hydrogen Energy
Volume	45
Issue number	46
DOIs	https://doi.org/10.1016/j.ijhydene.2020.06.113
Publication status	Published - 2020 Sep 21

Keywords

Hydrogen
In situ observation
Iridium complex
Pure iron

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.ijhydene.2020.06.113

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@article{5a20003e388e46dcbc621bd716c249d9,

title = "Application of an iridium complex for detecting hydrogen permeation through pure iron",

abstract = "Hydrogen embrittlement of high strength steel is seriously concerned and hydrogen visualization techniques in metals are strongly required to investigate the mechanism of hydrogen embrittlement. In this study, an in situ technique for hydrogen visualization in metals using aqua(2,2′-bipyridine-6,6′-dionato)(pentamethylcyclopentadienyl)iridium(III) (hereafter, Ir complex) has been developed. Hydrogen permeated through palladium-plated iron reacted with the Ir complex leading to the color change of the Ir complex. Furthermore, the flux of hydrogen could be quantitatively obtained from the changes in the RGB color values of the Ir complex. These results indicate that the Ir complex can be used for in-situ hydrogen visualization in metals.",

keywords = "Hydrogen, In situ observation, Iridium complex, Pure iron",

author = "Saya Ajito and Tomohiko Hojo and Motomichi Koyama and Fujita, {Ken ichi} and Eiji Akiyama",

note = "Funding Information: This work was supported by JSPS KAKENHI Grants-in-Aid for Scientific Research on Innovative Areas “Hydrogenomics”, JP18H05514 and JP19H05053 . ",

year = "2020",

month = sep,

day = "21",

doi = "10.1016/j.ijhydene.2020.06.113",

language = "English",

volume = "45",

pages = "25580--25586",

journal = "International Journal of Hydrogen Energy",

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TY - JOUR

T1 - Application of an iridium complex for detecting hydrogen permeation through pure iron

AU - Ajito, Saya

AU - Hojo, Tomohiko

AU - Koyama, Motomichi

AU - Fujita, Ken ichi

AU - Akiyama, Eiji

N1 - Funding Information: This work was supported by JSPS KAKENHI Grants-in-Aid for Scientific Research on Innovative Areas “Hydrogenomics”, JP18H05514 and JP19H05053 .

PY - 2020/9/21

Y1 - 2020/9/21

N2 - Hydrogen embrittlement of high strength steel is seriously concerned and hydrogen visualization techniques in metals are strongly required to investigate the mechanism of hydrogen embrittlement. In this study, an in situ technique for hydrogen visualization in metals using aqua(2,2′-bipyridine-6,6′-dionato)(pentamethylcyclopentadienyl)iridium(III) (hereafter, Ir complex) has been developed. Hydrogen permeated through palladium-plated iron reacted with the Ir complex leading to the color change of the Ir complex. Furthermore, the flux of hydrogen could be quantitatively obtained from the changes in the RGB color values of the Ir complex. These results indicate that the Ir complex can be used for in-situ hydrogen visualization in metals.

AB - Hydrogen embrittlement of high strength steel is seriously concerned and hydrogen visualization techniques in metals are strongly required to investigate the mechanism of hydrogen embrittlement. In this study, an in situ technique for hydrogen visualization in metals using aqua(2,2′-bipyridine-6,6′-dionato)(pentamethylcyclopentadienyl)iridium(III) (hereafter, Ir complex) has been developed. Hydrogen permeated through palladium-plated iron reacted with the Ir complex leading to the color change of the Ir complex. Furthermore, the flux of hydrogen could be quantitatively obtained from the changes in the RGB color values of the Ir complex. These results indicate that the Ir complex can be used for in-situ hydrogen visualization in metals.

KW - Hydrogen

KW - In situ observation

KW - Iridium complex

KW - Pure iron

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U2 - 10.1016/j.ijhydene.2020.06.113

DO - 10.1016/j.ijhydene.2020.06.113

M3 - Article

AN - SCOPUS:85089253665

VL - 45

SP - 25580

EP - 25586

JO - International Journal of Hydrogen Energy

JF - International Journal of Hydrogen Energy

SN - 0360-3199

IS - 46

ER -

Application of an iridium complex for detecting hydrogen permeation through pure iron

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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