Dissecting ZnOX/Cu interfacial self-encapsulation and methanol-induced strong metal-support interaction of the highly active alloyed CuZn and ZnO for methanol steam reforming

Aixia Wang; Peng Fu; Qingwen Fan; Yi Wang; Liang Zheng; Song Hu; Jun Xiang; Chaoyun Song

doi:10.1016/j.fuel.2023.129840

Dissecting ZnO_X/Cu interfacial self-encapsulation and methanol-induced strong metal-support interaction of the highly active alloyed CuZn and ZnO for methanol steam reforming

Aixia Wang, Peng Fu^*, Qingwen Fan, Yi Wang, Liang Zheng, Song Hu, Jun Xiang, Chaoyun Song

^*Corresponding author for this work

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

7 Citations (Scopus)

Abstract

A highly durable non-noble metal catalyst like copper for high-temperature methanol steam reforming is necessary for a compact hydrogen reactor. Herein, deactivation of copper-based catalysts with strong metal-support interaction is extremely sluggish even at 550 °C when using a selective chemical reduction approach paired with various induced activation procedures. The adsorbate methanol could enhance the migration of ZnOx onto the Cu and increase the number and electronic modulation of high-activity CuZn alloy sites. The Zn pre-deposited on the Cu surface induces continuous morphology and structural reorganization of the catalytic surface, which constantly refreshes the catalyst surface. The adsorbate methanol led to abundant CuZn alloy-ZnO synergism, which sped up the dissociation of·H₂O and the dehydrogenation of *CH₃O in accordance with the density functional theory and, ultimately, exhibited the highest methanol conversion (99.55 %) and hydrogen yield (97.73 %) compared to the hydrogen induction.

Original language	English
Article number	129840
Journal	FUEL
Volume	357
DOIs	https://doi.org/10.1016/j.fuel.2023.129840
Publication status	Published - 1 Feb 2024

Keywords

CuZn
Heterogeneous catalysis
Methanol induced activation
Methanol steam reforming

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

Access to Document

10.1016/j.fuel.2023.129840

Cite this

@article{d2075470291e4feaa3ad1355728c7292,

title = "Dissecting ZnOX/Cu interfacial self-encapsulation and methanol-induced strong metal-support interaction of the highly active alloyed CuZn and ZnO for methanol steam reforming",

abstract = "A highly durable non-noble metal catalyst like copper for high-temperature methanol steam reforming is necessary for a compact hydrogen reactor. Herein, deactivation of copper-based catalysts with strong metal-support interaction is extremely sluggish even at 550 °C when using a selective chemical reduction approach paired with various induced activation procedures. The adsorbate methanol could enhance the migration of ZnOx onto the Cu and increase the number and electronic modulation of high-activity CuZn alloy sites. The Zn pre-deposited on the Cu surface induces continuous morphology and structural reorganization of the catalytic surface, which constantly refreshes the catalyst surface. The adsorbate methanol led to abundant CuZn alloy-ZnO synergism, which sped up the dissociation of·H2O and the dehydrogenation of *CH3O in accordance with the density functional theory and, ultimately, exhibited the highest methanol conversion (99.55 %) and hydrogen yield (97.73 %) compared to the hydrogen induction.",

keywords = "CuZn, Heterogeneous catalysis, Methanol induced activation, Methanol steam reforming",

author = "Aixia Wang and Peng Fu and Qingwen Fan and Yi Wang and Liang Zheng and Song Hu and Jun Xiang and Chaoyun Song",

note = "Funding Information: The authors gratefully thank the support for this research from National Natural Science Foundation of China (No. 51976112 ), Special Project Fund of “Taishan Scholar” of Shandong Province (No. tsqn202103066 ), Youth Innovation Support Program of Shandong Colleges and Universities ( 2019KJD013 ) and Zibo Key R & D Project ( 2019ZBXC300 ). Publisher Copyright: {\textcopyright} 2023 Elsevier Ltd",

year = "2024",

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doi = "10.1016/j.fuel.2023.129840",

language = "English",

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T1 - Dissecting ZnOX/Cu interfacial self-encapsulation and methanol-induced strong metal-support interaction of the highly active alloyed CuZn and ZnO for methanol steam reforming

AU - Wang, Aixia

AU - Fu, Peng

AU - Fan, Qingwen

AU - Wang, Yi

AU - Zheng, Liang

AU - Hu, Song

AU - Xiang, Jun

AU - Song, Chaoyun

N1 - Funding Information: The authors gratefully thank the support for this research from National Natural Science Foundation of China (No. 51976112 ), Special Project Fund of “Taishan Scholar” of Shandong Province (No. tsqn202103066 ), Youth Innovation Support Program of Shandong Colleges and Universities ( 2019KJD013 ) and Zibo Key R & D Project ( 2019ZBXC300 ). Publisher Copyright: © 2023 Elsevier Ltd

PY - 2024/2/1

Y1 - 2024/2/1

N2 - A highly durable non-noble metal catalyst like copper for high-temperature methanol steam reforming is necessary for a compact hydrogen reactor. Herein, deactivation of copper-based catalysts with strong metal-support interaction is extremely sluggish even at 550 °C when using a selective chemical reduction approach paired with various induced activation procedures. The adsorbate methanol could enhance the migration of ZnOx onto the Cu and increase the number and electronic modulation of high-activity CuZn alloy sites. The Zn pre-deposited on the Cu surface induces continuous morphology and structural reorganization of the catalytic surface, which constantly refreshes the catalyst surface. The adsorbate methanol led to abundant CuZn alloy-ZnO synergism, which sped up the dissociation of·H2O and the dehydrogenation of *CH3O in accordance with the density functional theory and, ultimately, exhibited the highest methanol conversion (99.55 %) and hydrogen yield (97.73 %) compared to the hydrogen induction.

AB - A highly durable non-noble metal catalyst like copper for high-temperature methanol steam reforming is necessary for a compact hydrogen reactor. Herein, deactivation of copper-based catalysts with strong metal-support interaction is extremely sluggish even at 550 °C when using a selective chemical reduction approach paired with various induced activation procedures. The adsorbate methanol could enhance the migration of ZnOx onto the Cu and increase the number and electronic modulation of high-activity CuZn alloy sites. The Zn pre-deposited on the Cu surface induces continuous morphology and structural reorganization of the catalytic surface, which constantly refreshes the catalyst surface. The adsorbate methanol led to abundant CuZn alloy-ZnO synergism, which sped up the dissociation of·H2O and the dehydrogenation of *CH3O in accordance with the density functional theory and, ultimately, exhibited the highest methanol conversion (99.55 %) and hydrogen yield (97.73 %) compared to the hydrogen induction.

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KW - Heterogeneous catalysis

KW - Methanol induced activation

KW - Methanol steam reforming

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