Ultra-stable porous yolk-shell Ni catalysts for the steam reforming of methane with alkali poisoning

Kyung Won Jeon; Jin Koo Kim; Beom Jun Kim; Won Jun Jang; Yun Chan Kang; Hyun Seog Roh

doi:10.1016/j.cej.2022.140060

Ultra-stable porous yolk-shell Ni catalysts for the steam reforming of methane with alkali poisoning

Kyung Won Jeon, Jin Koo Kim, Beom Jun Kim, Won Jun Jang, Yun Chan Kang, Hyun Seog Roh

Department of Materials Science and Engineering

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

4 Citations (Scopus)

Abstract

Hydrogen, a clean energy carrier, can be produced from renewable sources such as biomass and waste, but it is needed to develop new catalysts with high resistance against impurities. Ni/Al₂O₃ yolk-shell catalysts were prepared by different procedure for the steam reforming of methane reaction with alkali poisoning. Yolk-shell (ys) and porous yolk-shell (pys) materials were synthesized using a spray pyrolysis process. The physicochemical and structural properties of the prepared catalysts on the reaction performance and alkali resistance were investigated. All the yolk-shell catalysts exhibited high resistance to carbon deposition. The Ni/pys-Al₂O₃ catalyst showed the highest CH₄ conversion and the best stability at a gas hourly space velocity of 932,492 mL·g⁻¹·h⁻¹ even upon exposure to alkali hydroxide vapor. It also showed strong resistance to sintering, whereas the structures of the ys-Ni-Al₂O₃ and Ni/ys-Al₂O₃ catalysts were relatively degraded under the same conditions.

Original language	English
Article number	140060
Journal	Chemical Engineering Journal
Volume	454
DOIs	https://doi.org/10.1016/j.cej.2022.140060
Publication status	Published - 2023 Feb 15

Keywords

Alkali resistance
Carbon deposition
Ni/AlO catalysts
Porous yolk-shell
Steam reforming of methane

ASJC Scopus subject areas

Chemistry(all)
Environmental Chemistry
Chemical Engineering(all)
Industrial and Manufacturing Engineering

UN SDGs

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

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10.1016/j.cej.2022.140060

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title = "Ultra-stable porous yolk-shell Ni catalysts for the steam reforming of methane with alkali poisoning",

abstract = "Hydrogen, a clean energy carrier, can be produced from renewable sources such as biomass and waste, but it is needed to develop new catalysts with high resistance against impurities. Ni/Al2O3 yolk-shell catalysts were prepared by different procedure for the steam reforming of methane reaction with alkali poisoning. Yolk-shell (ys) and porous yolk-shell (pys) materials were synthesized using a spray pyrolysis process. The physicochemical and structural properties of the prepared catalysts on the reaction performance and alkali resistance were investigated. All the yolk-shell catalysts exhibited high resistance to carbon deposition. The Ni/pys-Al2O3 catalyst showed the highest CH4 conversion and the best stability at a gas hourly space velocity of 932,492 mL·g−1·h−1 even upon exposure to alkali hydroxide vapor. It also showed strong resistance to sintering, whereas the structures of the ys-Ni-Al2O3 and Ni/ys-Al2O3 catalysts were relatively degraded under the same conditions.",

keywords = "Alkali resistance, Carbon deposition, Ni/AlO catalysts, Porous yolk-shell, Steam reforming of methane",

author = "Jeon, {Kyung Won} and Kim, {Jin Koo} and Kim, {Beom Jun} and Jang, {Won Jun} and Kang, {Yun Chan} and Roh, {Hyun Seog}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1A4A1029632 and 2022R1C1C2006228). Publisher Copyright: {\textcopyright} 2022 Elsevier B.V.",

year = "2023",

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doi = "10.1016/j.cej.2022.140060",

language = "English",

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journal = "Chemical Engineering Journal",

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T1 - Ultra-stable porous yolk-shell Ni catalysts for the steam reforming of methane with alkali poisoning

AU - Jeon, Kyung Won

AU - Kim, Jin Koo

AU - Kim, Beom Jun

AU - Jang, Won Jun

AU - Kang, Yun Chan

AU - Roh, Hyun Seog

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (MSIT) (No. 2022R1A4A1029632 and 2022R1C1C2006228). Publisher Copyright: © 2022 Elsevier B.V.

PY - 2023/2/15

Y1 - 2023/2/15

N2 - Hydrogen, a clean energy carrier, can be produced from renewable sources such as biomass and waste, but it is needed to develop new catalysts with high resistance against impurities. Ni/Al2O3 yolk-shell catalysts were prepared by different procedure for the steam reforming of methane reaction with alkali poisoning. Yolk-shell (ys) and porous yolk-shell (pys) materials were synthesized using a spray pyrolysis process. The physicochemical and structural properties of the prepared catalysts on the reaction performance and alkali resistance were investigated. All the yolk-shell catalysts exhibited high resistance to carbon deposition. The Ni/pys-Al2O3 catalyst showed the highest CH4 conversion and the best stability at a gas hourly space velocity of 932,492 mL·g−1·h−1 even upon exposure to alkali hydroxide vapor. It also showed strong resistance to sintering, whereas the structures of the ys-Ni-Al2O3 and Ni/ys-Al2O3 catalysts were relatively degraded under the same conditions.

AB - Hydrogen, a clean energy carrier, can be produced from renewable sources such as biomass and waste, but it is needed to develop new catalysts with high resistance against impurities. Ni/Al2O3 yolk-shell catalysts were prepared by different procedure for the steam reforming of methane reaction with alkali poisoning. Yolk-shell (ys) and porous yolk-shell (pys) materials were synthesized using a spray pyrolysis process. The physicochemical and structural properties of the prepared catalysts on the reaction performance and alkali resistance were investigated. All the yolk-shell catalysts exhibited high resistance to carbon deposition. The Ni/pys-Al2O3 catalyst showed the highest CH4 conversion and the best stability at a gas hourly space velocity of 932,492 mL·g−1·h−1 even upon exposure to alkali hydroxide vapor. It also showed strong resistance to sintering, whereas the structures of the ys-Ni-Al2O3 and Ni/ys-Al2O3 catalysts were relatively degraded under the same conditions.

KW - Alkali resistance

KW - Carbon deposition

KW - Ni/AlO catalysts

KW - Porous yolk-shell

KW - Steam reforming of methane

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Ultra-stable porous yolk-shell Ni catalysts for the steam reforming of methane with alkali poisoning

Abstract

Keywords

ASJC Scopus subject areas

UN SDGs

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