Elucidation of the reaction mechanism on dry reforming of methane in an electric field by in situ DRIFTs

Naoya Nakano; Maki Torimoto; Hiroshi Sampei; Reiji Yamashita; Ryota Yamano; Koki Saegusa; Ayaka Motomura; Kaho Nagakawa; Hideaki Tsuneki; Shuhei Ogo; Yasushi Sekine

doi:10.1039/d2ra00402j

Elucidation of the reaction mechanism on dry reforming of methane in an electric field by in situ DRIFTs

Naoya Nakano, Maki Torimoto, Hiroshi Sampei, Reiji Yamashita, Ryota Yamano, Koki Saegusa, Ayaka Motomura, Kaho Nagakawa, Hideaki Tsuneki, Shuhei Ogo, Yasushi Sekine^*

^*Corresponding author for this work

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

17 Citations (Scopus)

Abstract

With increasing expectations for carbon neutrality, dry reforming is anticipated for direct conversion of methane and carbon dioxide: the main components of biogas. We have found that dry reforming of methane in an electric field using a Pt/CeO₂ catalyst proceeds with sufficient rapidity even at a low temperature of about 473 K. The effect of the electric field (EF) on dry reforming was investigated using kinetic analysis, in situ DRIFTs, XPS, and DFT calculation. In situ DRIFTs and XPS measurements indicated that the amount of carbonate, which is an adsorbed species of CO₂, increased with the application of EF. XPS measurements also confirmed the reduction of CeO₂ by the reaction of surface oxygen and CH₄.

Original language	English
Pages (from-to)	9036-9043
Number of pages	8
Journal	RSC Advances
Volume	12
Issue number	15
DOIs	https://doi.org/10.1039/d2ra00402j
Publication status	Published - 2022 Mar 23

ASJC Scopus subject areas

General Chemistry
General Chemical Engineering

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abstract = "With increasing expectations for carbon neutrality, dry reforming is anticipated for direct conversion of methane and carbon dioxide: the main components of biogas. We have found that dry reforming of methane in an electric field using a Pt/CeO2 catalyst proceeds with sufficient rapidity even at a low temperature of about 473 K. The effect of the electric field (EF) on dry reforming was investigated using kinetic analysis, in situ DRIFTs, XPS, and DFT calculation. In situ DRIFTs and XPS measurements indicated that the amount of carbonate, which is an adsorbed species of CO2, increased with the application of EF. XPS measurements also confirmed the reduction of CeO2 by the reaction of surface oxygen and CH4.",

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AU - Nakano, Naoya

AU - Torimoto, Maki

AU - Sampei, Hiroshi

AU - Yamashita, Reiji

AU - Yamano, Ryota

AU - Saegusa, Koki

AU - Motomura, Ayaka

AU - Nagakawa, Kaho

AU - Tsuneki, Hideaki

AU - Ogo, Shuhei

AU - Sekine, Yasushi

PY - 2022/3/23

Y1 - 2022/3/23

N2 - With increasing expectations for carbon neutrality, dry reforming is anticipated for direct conversion of methane and carbon dioxide: the main components of biogas. We have found that dry reforming of methane in an electric field using a Pt/CeO2 catalyst proceeds with sufficient rapidity even at a low temperature of about 473 K. The effect of the electric field (EF) on dry reforming was investigated using kinetic analysis, in situ DRIFTs, XPS, and DFT calculation. In situ DRIFTs and XPS measurements indicated that the amount of carbonate, which is an adsorbed species of CO2, increased with the application of EF. XPS measurements also confirmed the reduction of CeO2 by the reaction of surface oxygen and CH4.

AB - With increasing expectations for carbon neutrality, dry reforming is anticipated for direct conversion of methane and carbon dioxide: the main components of biogas. We have found that dry reforming of methane in an electric field using a Pt/CeO2 catalyst proceeds with sufficient rapidity even at a low temperature of about 473 K. The effect of the electric field (EF) on dry reforming was investigated using kinetic analysis, in situ DRIFTs, XPS, and DFT calculation. In situ DRIFTs and XPS measurements indicated that the amount of carbonate, which is an adsorbed species of CO2, increased with the application of EF. XPS measurements also confirmed the reduction of CeO2 by the reaction of surface oxygen and CH4.

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Elucidation of the reaction mechanism on dry reforming of methane in an electric field by in situ DRIFTs

Abstract

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