Ni-Mg Supported Catalysts on Low-Temperature Electrocatalytic Tri-reforming of Methane with Suppressed Oxidation

Tomohiro Yabe; Kensei Yamada; Task Oguri; Takuma Higo; Shuhei Ogo; Yasushi Sekine

doi:10.1021/acscatal.8b02476

Ni-Mg Supported Catalysts on Low-Temperature Electrocatalytic Tri-reforming of Methane with Suppressed Oxidation

Tomohiro Yabe, Kensei Yamada, Task Oguri, Takuma Higo, Shuhei Ogo, Yasushi Sekine^*

^*Corresponding author for this work

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

24 Citations (Scopus)

Abstract

10wt%Ni-10wt%Mg-La_0.1Zr_0.9O_2-x (LZO) catalyst shows high reforming activity of methane while suppressing methane combustion on tri-reforming of methane at low temperatures of 473 K in an electric field. On the basis of results of light-on and light-off tests for methane oxidation and temperature dependencies for catalytic methane steam reforming activity with or without the electric field, we found that Mg addition to 10wt%Ni-LZO catalyst suppresses methane combustion, while the methane steam reforming proceeds well by virtue of surface protonics in the electric field. Ni²⁺ on 10wt%Ni-10wt%Mg-LZO catalyst was more cationic than that on 10wt%Ni-LZO catalyst, and NiO-MgO solid solution formed on LZO support played an important role in combustion suppression.

Original language	English
Pages (from-to)	11470-11477
Number of pages	8
Journal	ACS Catalysis
Volume	8
Issue number	12
DOIs	https://doi.org/10.1021/acscatal.8b02476
Publication status	Published - 2018 Dec 7

Keywords

Ni catalyst
XAFS measurements
methane tri-reforming
oxidation suppression
steam reforming

ASJC Scopus subject areas

Catalysis
Chemistry(all)

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10.1021/acscatal.8b02476

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title = "Ni-Mg Supported Catalysts on Low-Temperature Electrocatalytic Tri-reforming of Methane with Suppressed Oxidation",

abstract = "10wt%Ni-10wt%Mg-La0.1Zr0.9O2-x (LZO) catalyst shows high reforming activity of methane while suppressing methane combustion on tri-reforming of methane at low temperatures of 473 K in an electric field. On the basis of results of light-on and light-off tests for methane oxidation and temperature dependencies for catalytic methane steam reforming activity with or without the electric field, we found that Mg addition to 10wt%Ni-LZO catalyst suppresses methane combustion, while the methane steam reforming proceeds well by virtue of surface protonics in the electric field. Ni2+ on 10wt%Ni-10wt%Mg-LZO catalyst was more cationic than that on 10wt%Ni-LZO catalyst, and NiO-MgO solid solution formed on LZO support played an important role in combustion suppression.",

keywords = "Ni catalyst, XAFS measurements, methane tri-reforming, oxidation suppression, steam reforming",

author = "Tomohiro Yabe and Kensei Yamada and Task Oguri and Takuma Higo and Shuhei Ogo and Yasushi Sekine",

year = "2018",

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doi = "10.1021/acscatal.8b02476",

language = "English",

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T1 - Ni-Mg Supported Catalysts on Low-Temperature Electrocatalytic Tri-reforming of Methane with Suppressed Oxidation

AU - Yabe, Tomohiro

AU - Yamada, Kensei

AU - Oguri, Task

AU - Higo, Takuma

AU - Ogo, Shuhei

AU - Sekine, Yasushi

PY - 2018/12/7

Y1 - 2018/12/7

N2 - 10wt%Ni-10wt%Mg-La0.1Zr0.9O2-x (LZO) catalyst shows high reforming activity of methane while suppressing methane combustion on tri-reforming of methane at low temperatures of 473 K in an electric field. On the basis of results of light-on and light-off tests for methane oxidation and temperature dependencies for catalytic methane steam reforming activity with or without the electric field, we found that Mg addition to 10wt%Ni-LZO catalyst suppresses methane combustion, while the methane steam reforming proceeds well by virtue of surface protonics in the electric field. Ni2+ on 10wt%Ni-10wt%Mg-LZO catalyst was more cationic than that on 10wt%Ni-LZO catalyst, and NiO-MgO solid solution formed on LZO support played an important role in combustion suppression.

AB - 10wt%Ni-10wt%Mg-La0.1Zr0.9O2-x (LZO) catalyst shows high reforming activity of methane while suppressing methane combustion on tri-reforming of methane at low temperatures of 473 K in an electric field. On the basis of results of light-on and light-off tests for methane oxidation and temperature dependencies for catalytic methane steam reforming activity with or without the electric field, we found that Mg addition to 10wt%Ni-LZO catalyst suppresses methane combustion, while the methane steam reforming proceeds well by virtue of surface protonics in the electric field. Ni2+ on 10wt%Ni-10wt%Mg-LZO catalyst was more cationic than that on 10wt%Ni-LZO catalyst, and NiO-MgO solid solution formed on LZO support played an important role in combustion suppression.

KW - Ni catalyst

KW - XAFS measurements

KW - methane tri-reforming

KW - oxidation suppression

KW - steam reforming

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JF - ACS Catalysis

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ER -

Ni-Mg Supported Catalysts on Low-Temperature Electrocatalytic Tri-reforming of Methane with Suppressed Oxidation

Abstract

Keywords

ASJC Scopus subject areas

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