Low-temperature selective dehydrogenation of methylcyclohexane by surface protonics over Pt/anatase-TiO2 catalyst

Misato Kosaka; Takuma Higo; Shuhei Ogo; Jeong Gil Seo; Shigeru Kado; Ken ichi Imagawa; Yasushi Sekine

doi:10.1016/j.ijhydene.2019.10.133

Low-temperature selective dehydrogenation of methylcyclohexane by surface protonics over Pt/anatase-TiO₂ catalyst

Misato Kosaka, Takuma Higo, Shuhei Ogo, Jeong Gil Seo, Shigeru Kado, Ken ichi Imagawa, Yasushi Sekine^*

^*Corresponding author for this work

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

50 Citations (Scopus)

Abstract

For a liquid organic hydride system used for a hydrogen carrier, methylcyclohexane (MCH)–toluene cycle is promising. In this cycle, dehydrogenation of MCH is an endothermic reaction and a key step. We have conducted dehydrogenation of MCH over Pt/anatase-TiO₂ catalyst in an electric field to promote MCH dehydrogenation at a temperature as low as 448 K. The electric field application brought high activity of 37% conversion even at 448 K, exceeding the thermodynamic equilibrium of 12%. This Pt/anatase-TiO₂ catalyst showed only a small amount of methane and carbon by-production and showed high activity for 360 min because of surface protonics.

Original language	English
Pages (from-to)	738-743
Number of pages	6
Journal	International Journal of Hydrogen Energy
Volume	45
Issue number	1
DOIs	https://doi.org/10.1016/j.ijhydene.2019.10.133
Publication status	Published - 2020 Jan 1

Keywords

Dehydrogenation
Electric field
Hydrogen carrier
Methylcyclohexane
Proton hopping

ASJC Scopus subject areas

Renewable Energy, Sustainability and the Environment
Fuel Technology
Condensed Matter Physics
Energy Engineering and Power Technology

UN SDGs

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

Access to Document

10.1016/j.ijhydene.2019.10.133

Cite this

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title = "Low-temperature selective dehydrogenation of methylcyclohexane by surface protonics over Pt/anatase-TiO2 catalyst",

abstract = "For a liquid organic hydride system used for a hydrogen carrier, methylcyclohexane (MCH)–toluene cycle is promising. In this cycle, dehydrogenation of MCH is an endothermic reaction and a key step. We have conducted dehydrogenation of MCH over Pt/anatase-TiO2 catalyst in an electric field to promote MCH dehydrogenation at a temperature as low as 448 K. The electric field application brought high activity of 37% conversion even at 448 K, exceeding the thermodynamic equilibrium of 12%. This Pt/anatase-TiO2 catalyst showed only a small amount of methane and carbon by-production and showed high activity for 360 min because of surface protonics.",

keywords = "Dehydrogenation, Electric field, Hydrogen carrier, Methylcyclohexane, Proton hopping",

author = "Misato Kosaka and Takuma Higo and Shuhei Ogo and Seo, {Jeong Gil} and Shigeru Kado and Imagawa, {Ken ichi} and Yasushi Sekine",

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T1 - Low-temperature selective dehydrogenation of methylcyclohexane by surface protonics over Pt/anatase-TiO2 catalyst

AU - Kosaka, Misato

AU - Higo, Takuma

AU - Ogo, Shuhei

AU - Seo, Jeong Gil

AU - Kado, Shigeru

AU - Imagawa, Ken ichi

AU - Sekine, Yasushi

PY - 2020/1/1

Y1 - 2020/1/1

N2 - For a liquid organic hydride system used for a hydrogen carrier, methylcyclohexane (MCH)–toluene cycle is promising. In this cycle, dehydrogenation of MCH is an endothermic reaction and a key step. We have conducted dehydrogenation of MCH over Pt/anatase-TiO2 catalyst in an electric field to promote MCH dehydrogenation at a temperature as low as 448 K. The electric field application brought high activity of 37% conversion even at 448 K, exceeding the thermodynamic equilibrium of 12%. This Pt/anatase-TiO2 catalyst showed only a small amount of methane and carbon by-production and showed high activity for 360 min because of surface protonics.

AB - For a liquid organic hydride system used for a hydrogen carrier, methylcyclohexane (MCH)–toluene cycle is promising. In this cycle, dehydrogenation of MCH is an endothermic reaction and a key step. We have conducted dehydrogenation of MCH over Pt/anatase-TiO2 catalyst in an electric field to promote MCH dehydrogenation at a temperature as low as 448 K. The electric field application brought high activity of 37% conversion even at 448 K, exceeding the thermodynamic equilibrium of 12%. This Pt/anatase-TiO2 catalyst showed only a small amount of methane and carbon by-production and showed high activity for 360 min because of surface protonics.

KW - Dehydrogenation

KW - Electric field

KW - Hydrogen carrier

KW - Methylcyclohexane

KW - Proton hopping

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