Application of TiO2 nanotubes as bulky supports of highly active CO2 methanation catalysts prepared via the polygonal barrel-sputtering method

Mitsuhiro Inoue; Ren Chung Peng; Hibiki Sagami; Yuta Kasai; Tomoya Suga; Toshiya Shibayanagi; Takayuki Abe

doi:10.1016/j.matlet.2023.134787

Application of TiO₂ nanotubes as bulky supports of highly active CO₂ methanation catalysts prepared via the polygonal barrel-sputtering method

Mitsuhiro Inoue, Ren Chung Peng, Hibiki Sagami, Yuta Kasai, Tomoya Suga, Toshiya Shibayanagi, Takayuki Abe^*

^*Corresponding author for this work

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

2 Scopus citations

Abstract

Herein, TiO₂ nanotubes (TiO₂-NTs) were used as bulky supports for the preparation of highly active CO₂ methanation catalysts to maintain the stability of the reaction at high gas flow rates. The nanotube shapes of the prepared TiO₂-NTs remained unchanged at a calcination temperature of 300 °C. The CO₂ methanation reaction on Ru-sputtered catalysts indicated that at high gas flow rates of 10% CO₂/Ar and H₂, some crack-like gaps were formed in the catalyst bed using raw anatase TiO₂ particle supports, whereas no gaps appeared in the case where TiO₂-NTs were used as the support, leading to a stable reaction. This result is attributed to the formation of a sparse catalyst bed owing to the bulky TiO₂-NT supports.

Original language	English
Article number	134787
Journal	Materials Letters
Volume	349
DOIs	https://doi.org/10.1016/j.matlet.2023.134787
State	Published - 2023/10/15

Keywords

CO methanation catalyst
Low-temperature reaction
Polygonal barrel-sputtering method
TiO nanotube support

ASJC Scopus subject areas

General Materials Science
Condensed Matter Physics
Mechanics of Materials
Mechanical Engineering

Access to Document

10.1016/j.matlet.2023.134787

Cite this

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title = "Application of TiO2 nanotubes as bulky supports of highly active CO2 methanation catalysts prepared via the polygonal barrel-sputtering method",

abstract = "Herein, TiO2 nanotubes (TiO2-NTs) were used as bulky supports for the preparation of highly active CO2 methanation catalysts to maintain the stability of the reaction at high gas flow rates. The nanotube shapes of the prepared TiO2-NTs remained unchanged at a calcination temperature of 300 °C. The CO2 methanation reaction on Ru-sputtered catalysts indicated that at high gas flow rates of 10% CO2/Ar and H2, some crack-like gaps were formed in the catalyst bed using raw anatase TiO2 particle supports, whereas no gaps appeared in the case where TiO2-NTs were used as the support, leading to a stable reaction. This result is attributed to the formation of a sparse catalyst bed owing to the bulky TiO2-NT supports.",

keywords = "CO methanation catalyst, Low-temperature reaction, Polygonal barrel-sputtering method, TiO nanotube support",

author = "Mitsuhiro Inoue and {Chung Peng}, Ren and Hibiki Sagami and Yuta Kasai and Tomoya Suga and Toshiya Shibayanagi and Takayuki Abe",

note = "Publisher Copyright: {\textcopyright} 2023",

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doi = "10.1016/j.matlet.2023.134787",

language = "英語",

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T1 - Application of TiO2 nanotubes as bulky supports of highly active CO2 methanation catalysts prepared via the polygonal barrel-sputtering method

AU - Inoue, Mitsuhiro

AU - Chung Peng, Ren

AU - Sagami, Hibiki

AU - Kasai, Yuta

AU - Suga, Tomoya

AU - Shibayanagi, Toshiya

AU - Abe, Takayuki

PY - 2023/10/15

Y1 - 2023/10/15

N2 - Herein, TiO2 nanotubes (TiO2-NTs) were used as bulky supports for the preparation of highly active CO2 methanation catalysts to maintain the stability of the reaction at high gas flow rates. The nanotube shapes of the prepared TiO2-NTs remained unchanged at a calcination temperature of 300 °C. The CO2 methanation reaction on Ru-sputtered catalysts indicated that at high gas flow rates of 10% CO2/Ar and H2, some crack-like gaps were formed in the catalyst bed using raw anatase TiO2 particle supports, whereas no gaps appeared in the case where TiO2-NTs were used as the support, leading to a stable reaction. This result is attributed to the formation of a sparse catalyst bed owing to the bulky TiO2-NT supports.

AB - Herein, TiO2 nanotubes (TiO2-NTs) were used as bulky supports for the preparation of highly active CO2 methanation catalysts to maintain the stability of the reaction at high gas flow rates. The nanotube shapes of the prepared TiO2-NTs remained unchanged at a calcination temperature of 300 °C. The CO2 methanation reaction on Ru-sputtered catalysts indicated that at high gas flow rates of 10% CO2/Ar and H2, some crack-like gaps were formed in the catalyst bed using raw anatase TiO2 particle supports, whereas no gaps appeared in the case where TiO2-NTs were used as the support, leading to a stable reaction. This result is attributed to the formation of a sparse catalyst bed owing to the bulky TiO2-NT supports.

KW - CO methanation catalyst

KW - Low-temperature reaction

KW - Polygonal barrel-sputtering method

KW - TiO nanotube support

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