Hydrogen Energy System That Uses [NiFe] Hydrogenase Functional Models and Works at 20-40 °C

Seiji Ogo; Chiaki Takahashi; Takeshi Yatabe; Kahori Yoshida; Hidetaka Nakai

doi:10.1021/acssuschemeng.4c08971

Hydrogen Energy System That Uses [NiFe] Hydrogenase Functional Models and Works at 20-40 °C

Seiji Ogo, Chiaki Takahashi, Takeshi Yatabe, Kahori Yoshida, Hidetaka Nakai

Chemistry and Biochemistry

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

Abstract

Hydrogen gas is a strong contender for the next generation of energy, but it has serious drawbacks in terms of storage and transportation. So chemical derivatives, known as hydrogen energy carriers, are currently being developed. All current carriers have their own weaknesses, however, so here, we present an entirely new direction for their development. Instead of transporting H₂-derived H or H^-, we transport only its electrons. We describe a fully functioning system with a Ni complex for electron extraction, ethyl viologen for electron storage, and a NiFe complex for regenerating H₂. Our system is notable for (1) working wholly at 20-40 °C, (2) not generating any CO₂, (3) not using any precious metals, and (4) having a recyclable carrier.

Original language	English
Pages (from-to)	1051-1055
Number of pages	5
Journal	ACS Sustainable Chemistry and Engineering
Volume	13
Issue number	2
DOIs	https://doi.org/10.1021/acssuschemeng.4c08971
Publication status	Published - Jan 20 2025

All Science Journal Classification (ASJC) codes

General Chemistry
Environmental Chemistry
General Chemical Engineering
Renewable Energy, Sustainability and the Environment

UN SDGs

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

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10.1021/acssuschemeng.4c08971

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title = "Hydrogen Energy System That Uses [NiFe] Hydrogenase Functional Models and Works at 20-40 °C",

abstract = "Hydrogen gas is a strong contender for the next generation of energy, but it has serious drawbacks in terms of storage and transportation. So chemical derivatives, known as hydrogen energy carriers, are currently being developed. All current carriers have their own weaknesses, however, so here, we present an entirely new direction for their development. Instead of transporting H2-derived H or H-, we transport only its electrons. We describe a fully functioning system with a Ni complex for electron extraction, ethyl viologen for electron storage, and a NiFe complex for regenerating H2. Our system is notable for (1) working wholly at 20-40 °C, (2) not generating any CO2, (3) not using any precious metals, and (4) having a recyclable carrier.",

keywords = "H evolution, H oxidation, electron extraction, hydrogen energy carrier, hydrogenase, viologen",

author = "Seiji Ogo and Chiaki Takahashi and Takeshi Yatabe and Kahori Yoshida and Hidetaka Nakai",

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TY - JOUR

T1 - Hydrogen Energy System That Uses [NiFe] Hydrogenase Functional Models and Works at 20-40 °C

AU - Ogo, Seiji

AU - Takahashi, Chiaki

AU - Yatabe, Takeshi

AU - Yoshida, Kahori

AU - Nakai, Hidetaka

PY - 2025/1/20

Y1 - 2025/1/20

N2 - Hydrogen gas is a strong contender for the next generation of energy, but it has serious drawbacks in terms of storage and transportation. So chemical derivatives, known as hydrogen energy carriers, are currently being developed. All current carriers have their own weaknesses, however, so here, we present an entirely new direction for their development. Instead of transporting H2-derived H or H-, we transport only its electrons. We describe a fully functioning system with a Ni complex for electron extraction, ethyl viologen for electron storage, and a NiFe complex for regenerating H2. Our system is notable for (1) working wholly at 20-40 °C, (2) not generating any CO2, (3) not using any precious metals, and (4) having a recyclable carrier.

AB - Hydrogen gas is a strong contender for the next generation of energy, but it has serious drawbacks in terms of storage and transportation. So chemical derivatives, known as hydrogen energy carriers, are currently being developed. All current carriers have their own weaknesses, however, so here, we present an entirely new direction for their development. Instead of transporting H2-derived H or H-, we transport only its electrons. We describe a fully functioning system with a Ni complex for electron extraction, ethyl viologen for electron storage, and a NiFe complex for regenerating H2. Our system is notable for (1) working wholly at 20-40 °C, (2) not generating any CO2, (3) not using any precious metals, and (4) having a recyclable carrier.

KW - H evolution

KW - H oxidation

KW - electron extraction

KW - hydrogen energy carrier

KW - hydrogenase

KW - viologen

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Hydrogen Energy System That Uses [NiFe] Hydrogenase Functional Models and Works at 20-40 °C

Abstract

All Science Journal Classification (ASJC) codes

UN SDGs

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