Microwave-assisted hydrothermal synthesis of amino acid-loaded Cu2O hybrid particles for CO2 reduction electrocatalysis

Yuki Tsuda; Mizuki Irizawa; Saki Fukuma; Minami Kato; Takao Gunji; Kazuki Yoshii; Nobuhiko Takeichi

doi:10.1039/D5RA02252E

Microwave-assisted hydrothermal synthesis of amino acid-loaded Cu₂O hybrid particles for CO₂ reduction electrocatalysis†

Yuki Tsuda,

*^ab Mizuki Irizawa,^c Saki Fukuma,

^a Minami Kato,

^a Takao Gunji,

^c Kazuki Yoshii

^a and Nobuhiko Takeichi

Author affiliations

* Corresponding authors

^a Research Institute of Electrochemical Energy (RIECEN), Department of Energy and Environment, National Institute of Advanced Industrial Science and Technology (AIST), Ikeda, Osaka, Japan
E-mail: y-tsuda@aist.go.jp

^b Renewable Energy Advanced Research Center (READ), National Institute of Advanced Industrial Science and Technology (AIST), 2-2-9 Machiikedai, Koriyama, Fukushima 963-0298, Japan

^c Department of Chemical and Environmental Engineering, The University of Kitakyushu, Kitakyushu, Fukuoka 808-0135, Japan

Abstract

Amino acid-loaded Cu₂O hybrid particles were synthesized via microwave-assisted hydrothermal reaction for efficient CO₂ reduction. The amino acid-loaded Cu₂O particles exhibited different selectivities in the CO₂ electrolysis products depending on type of loaded amino acid. Notably, as compared to amino acid-unloaded Cu₂O particles, the L-histidine-loaded Cu₂O hybrid particles exhibited an improvement of faradaic efficiency to 18.5% toward ethylene production.

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Article information

DOI: https://doi.org/10.1039/D5RA02252E
Article type: Paper
Submitted: 01 Apr 2025
Accepted: 07 May 2025
First published: 15 May 2025
This article is Open Access

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RSC Adv., 2025,15, 16211-16218

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Microwave-assisted hydrothermal synthesis of amino acid-loaded Cu₂O hybrid particles for CO₂ reduction electrocatalysis

Y. Tsuda, M. Irizawa, S. Fukuma, M. Kato, T. Gunji, K. Yoshii and N. Takeichi, RSC Adv., 2025, 15, 16211 DOI: 10.1039/D5RA02252E

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Microwave-assisted hydrothermal synthesis of amino acid-loaded Cu₂O hybrid particles for CO₂ reduction electrocatalysis†

Abstract

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Microwave-assisted hydrothermal synthesis of amino acid-loaded Cu₂O hybrid particles for CO₂ reduction electrocatalysis

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