Poly(vinyl diphenylquinoxaline) as a hydrogen storage material toward rapid hydrogen evolution

Kouki Oka; Miho Kataoka; Hiroyuki Nishide; Kenichi Oyaizu

doi:10.1557/s43579-022-00164-x

Poly(vinyl diphenylquinoxaline) as a hydrogen storage material toward rapid hydrogen evolution

Kouki Oka, Miho Kataoka, Hiroyuki Nishide, Kenichi Oyaizu^*

^*Corresponding author for this work

School of Advanced Science and Engineering

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

2 Citations (Scopus)

Abstract

A safe hydrogen storage method that does not entail high-temperature reactions, high pressures, and explosion risks is required urgently. Herein, we present a polymeric hydrogen carrier bearing 2,3-diphenylquinoxaline as a hydrogen storage unit. The introduction of phenyl group into a heterocyclic nitrogen compound led to rapid dehydrogenation. The radical polymerization of 6-vinyl-2,3-diphenylquinoxline produced poly(6-vinyl-2,3-diphenylquinoxline) with a high molecular weight of ~ 10⁵. The hydrogenation of poly(6-vinyl-2,3-diphenylquinoxline) by a borane–tetrahydrofuran complex resulted in poly(6-vinyl-2,3-diphenyl-1,2,3,4-tetrahydroquinoxaline). The reversible hydrogenation/dehydrogenation of these newly synthesized polymers was demonstrated with full conversion under mild conditions (~ 1 atm and < 200°C). Graphical abstract: [Figure not available: see fulltext.]

Original language	English
Pages (from-to)	213-216
Number of pages	4
Journal	MRS Communications
Volume	12
Issue number	2
DOIs	https://doi.org/10.1557/s43579-022-00164-x
Publication status	Published - 2022 Apr

Keywords

Energy storage
Functional
Hydrogenation
Polymer

ASJC Scopus subject areas

Materials Science(all)

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10.1557/s43579-022-00164-x

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title = "Poly(vinyl diphenylquinoxaline) as a hydrogen storage material toward rapid hydrogen evolution",

abstract = "A safe hydrogen storage method that does not entail high-temperature reactions, high pressures, and explosion risks is required urgently. Herein, we present a polymeric hydrogen carrier bearing 2,3-diphenylquinoxaline as a hydrogen storage unit. The introduction of phenyl group into a heterocyclic nitrogen compound led to rapid dehydrogenation. The radical polymerization of 6-vinyl-2,3-diphenylquinoxline produced poly(6-vinyl-2,3-diphenylquinoxline) with a high molecular weight of ~ 105. The hydrogenation of poly(6-vinyl-2,3-diphenylquinoxline) by a borane–tetrahydrofuran complex resulted in poly(6-vinyl-2,3-diphenyl-1,2,3,4-tetrahydroquinoxaline). The reversible hydrogenation/dehydrogenation of these newly synthesized polymers was demonstrated with full conversion under mild conditions (~ 1 atm and < 200°C). Graphical abstract: [Figure not available: see fulltext.]",

keywords = "Energy storage, Functional, Hydrogenation, Polymer",

author = "Kouki Oka and Miho Kataoka and Hiroyuki Nishide and Kenichi Oyaizu",

note = "Funding Information: This work was partially supported by Grants-in-Aids for Scientific Research (18H05515 and 21H04695) and by the Top Global University Project from MEXT, Japan. Publisher Copyright: {\textcopyright} 2022, The Author(s), under exclusive licence to The Materials Research Society.",

year = "2022",

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doi = "10.1557/s43579-022-00164-x",

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AU - Oka, Kouki

AU - Kataoka, Miho

AU - Nishide, Hiroyuki

AU - Oyaizu, Kenichi

N1 - Funding Information: This work was partially supported by Grants-in-Aids for Scientific Research (18H05515 and 21H04695) and by the Top Global University Project from MEXT, Japan. Publisher Copyright: © 2022, The Author(s), under exclusive licence to The Materials Research Society.

PY - 2022/4

Y1 - 2022/4

N2 - A safe hydrogen storage method that does not entail high-temperature reactions, high pressures, and explosion risks is required urgently. Herein, we present a polymeric hydrogen carrier bearing 2,3-diphenylquinoxaline as a hydrogen storage unit. The introduction of phenyl group into a heterocyclic nitrogen compound led to rapid dehydrogenation. The radical polymerization of 6-vinyl-2,3-diphenylquinoxline produced poly(6-vinyl-2,3-diphenylquinoxline) with a high molecular weight of ~ 105. The hydrogenation of poly(6-vinyl-2,3-diphenylquinoxline) by a borane–tetrahydrofuran complex resulted in poly(6-vinyl-2,3-diphenyl-1,2,3,4-tetrahydroquinoxaline). The reversible hydrogenation/dehydrogenation of these newly synthesized polymers was demonstrated with full conversion under mild conditions (~ 1 atm and < 200°C). Graphical abstract: [Figure not available: see fulltext.]

AB - A safe hydrogen storage method that does not entail high-temperature reactions, high pressures, and explosion risks is required urgently. Herein, we present a polymeric hydrogen carrier bearing 2,3-diphenylquinoxaline as a hydrogen storage unit. The introduction of phenyl group into a heterocyclic nitrogen compound led to rapid dehydrogenation. The radical polymerization of 6-vinyl-2,3-diphenylquinoxline produced poly(6-vinyl-2,3-diphenylquinoxline) with a high molecular weight of ~ 105. The hydrogenation of poly(6-vinyl-2,3-diphenylquinoxline) by a borane–tetrahydrofuran complex resulted in poly(6-vinyl-2,3-diphenyl-1,2,3,4-tetrahydroquinoxaline). The reversible hydrogenation/dehydrogenation of these newly synthesized polymers was demonstrated with full conversion under mild conditions (~ 1 atm and < 200°C). Graphical abstract: [Figure not available: see fulltext.]

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Poly(vinyl diphenylquinoxaline) as a hydrogen storage material toward rapid hydrogen evolution

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