The dual-active-site tandem catalyst containing Ru single atoms and Ni nanoparticles boosts CO2 methanation

Tengfei Zhang; Peng Zheng; Fangna Gu; Wenqing Xu; Wenxing Chen; Tingyu Zhu; Yi-Fan Han; Guangwen Xu; Ziyi Zhong; Fabing Su

doi:10.1016/j.apcatb.2022.122190

The dual-active-site tandem catalyst containing Ru single atoms and Ni nanoparticles boosts CO2 methanation

Tengfei Zhang, Peng Zheng, Fangna Gu^*, Wenqing Xu^*, Wenxing Chen^*, Tingyu Zhu, Yi-Fan Han, Guangwen Xu, Ziyi Zhong^*, Fabing Su^*

^*Corresponding author for this work

Chemical Engineering

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

33 Scopus citations

Abstract

Hydrogenation of CO2 into CH4 is an effective strategy for dealing with CO2-relevant environmental problems. Since the CO2 methanation reaction involves multiple electron transfers and various C1 intermediates, improving the reaction rate at each step is critical to accelerating the entire reaction. Here, we report a dual-active-site tandem catalyst (Ru1Ni/CeO2) composed of Ru single atoms (Ru1) and Ni nanoparticles, which can effectively convert CO2 to CH4, showing ∼90% CO2 conversion and ∼99% CH4 selectivity at 325 °C, much higher than those of the Ru1/CeO2 and Ni/CeO2 catalysts. Experimental and theoretical calculation results reveal that Ru1 is extremely active for converting CO2 to CO, while the Ni site is highly efficient for the subsequent sequential CO to CH4 reaction step. The coexistence of the Ru1 and Ni sites significantly boosts the overall reaction. This work offers a promising strategy for the rational design of efficient multisite tandem catalysts.

Original language	English
Journal	Applied Catalysis B: Environmental
Volume	323
DOIs	https://doi.org/10.1016/j.apcatb.2022.122190
State	Published - 1 Apr 2023

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title = "The dual-active-site tandem catalyst containing Ru single atoms and Ni nanoparticles boosts CO2 methanation",

abstract = "Hydrogenation of CO2 into CH4 is an effective strategy for dealing with CO2-relevant environmental problems. Since the CO2 methanation reaction involves multiple electron transfers and various C1 intermediates, improving the reaction rate at each step is critical to accelerating the entire reaction. Here, we report a dual-active-site tandem catalyst (Ru1Ni/CeO2) composed of Ru single atoms (Ru1) and Ni nanoparticles, which can effectively convert CO2 to CH4, showing ∼90% CO2 conversion and ∼99% CH4 selectivity at 325 °C, much higher than those of the Ru1/CeO2 and Ni/CeO2 catalysts. Experimental and theoretical calculation results reveal that Ru1 is extremely active for converting CO2 to CO, while the Ni site is highly efficient for the subsequent sequential CO to CH4 reaction step. The coexistence of the Ru1 and Ni sites significantly boosts the overall reaction. This work offers a promising strategy for the rational design of efficient multisite tandem catalysts.",

author = "Tengfei Zhang and Peng Zheng and Fangna Gu and Wenqing Xu and Wenxing Chen and Tingyu Zhu and Yi-Fan Han and Guangwen Xu and Ziyi Zhong and Fabing Su",

year = "2023",

month = apr,

day = "1",

doi = "10.1016/j.apcatb.2022.122190",

language = "英语",

volume = "323",

journal = "Applied Catalysis B: Environmental",

issn = "0926-3373",

publisher = "Elsevier",

}

TY - JOUR

T1 - The dual-active-site tandem catalyst containing Ru single atoms and Ni nanoparticles boosts CO2 methanation

AU - Zhang, Tengfei

AU - Zheng, Peng

AU - Gu, Fangna

AU - Xu, Wenqing

AU - Chen, Wenxing

AU - Zhu, Tingyu

AU - Han, Yi-Fan

AU - Xu, Guangwen

AU - Zhong, Ziyi

AU - Su, Fabing

PY - 2023/4/1

Y1 - 2023/4/1

N2 - Hydrogenation of CO2 into CH4 is an effective strategy for dealing with CO2-relevant environmental problems. Since the CO2 methanation reaction involves multiple electron transfers and various C1 intermediates, improving the reaction rate at each step is critical to accelerating the entire reaction. Here, we report a dual-active-site tandem catalyst (Ru1Ni/CeO2) composed of Ru single atoms (Ru1) and Ni nanoparticles, which can effectively convert CO2 to CH4, showing ∼90% CO2 conversion and ∼99% CH4 selectivity at 325 °C, much higher than those of the Ru1/CeO2 and Ni/CeO2 catalysts. Experimental and theoretical calculation results reveal that Ru1 is extremely active for converting CO2 to CO, while the Ni site is highly efficient for the subsequent sequential CO to CH4 reaction step. The coexistence of the Ru1 and Ni sites significantly boosts the overall reaction. This work offers a promising strategy for the rational design of efficient multisite tandem catalysts.

AB - Hydrogenation of CO2 into CH4 is an effective strategy for dealing with CO2-relevant environmental problems. Since the CO2 methanation reaction involves multiple electron transfers and various C1 intermediates, improving the reaction rate at each step is critical to accelerating the entire reaction. Here, we report a dual-active-site tandem catalyst (Ru1Ni/CeO2) composed of Ru single atoms (Ru1) and Ni nanoparticles, which can effectively convert CO2 to CH4, showing ∼90% CO2 conversion and ∼99% CH4 selectivity at 325 °C, much higher than those of the Ru1/CeO2 and Ni/CeO2 catalysts. Experimental and theoretical calculation results reveal that Ru1 is extremely active for converting CO2 to CO, while the Ni site is highly efficient for the subsequent sequential CO to CH4 reaction step. The coexistence of the Ru1 and Ni sites significantly boosts the overall reaction. This work offers a promising strategy for the rational design of efficient multisite tandem catalysts.

U2 - 10.1016/j.apcatb.2022.122190

DO - 10.1016/j.apcatb.2022.122190

M3 - 文章

SN - 0926-3373

VL - 323

JO - Applied Catalysis B: Environmental

JF - Applied Catalysis B: Environmental

ER -

The dual-active-site tandem catalyst containing Ru single atoms and Ni nanoparticles boosts CO2 methanation

Abstract

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