Catalysis Today, volume 365, pages 341-347

CO2 hydrogenation to methanol over Rh/In2O3 catalyst

Jingjing Wang ¹

Kaihang Sun ¹

Xinyu Jia ¹

Chang Jun Liu ¹

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School of Chemical Engineering and Technology, Tianjin University, Tianjin 300072 China |

Publication type: Journal Article

Publication date: 2021-04-01

Elsevier

Journal: Catalysis Today

Quartile SCImago

Quartile WOS

Impact factor: 5.3

ISSN: 09205861

DOI: 10.1016/j.cattod.2020.05.020

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General Chemistry

Catalysis

Abstract

• Rh/In 2 O 3 catalyst shows high activity for hydrogenation of CO 2 to methanol. • Rh/In 2 O 3 catalyst possesses similar methanol selectivity (>70 %) as In 2 O 3 under 275 °C. • Highly dispersed Rh catalyst enhances the dissociative adsorption and spillover of hydrogen. • The Rh loading promotes the formation of surface oxygen vacancy of In 2 O 3 . • CO 2 adsorption and activation are enhanced by surface oxygen vacancy of In 2 O 3 . CO 2 hydrogenation to methanol is of great significance for the emission control and utilization of CO 2 . In this work, the Rh/In 2 O 3 catalyst with high Rh dispersion was prepared by deposition-precipitation method. The catalyst characterization demonstrates that the highly dispersed Rh species promotes the dissociative adsorption and spillover of hydrogen, which further enhances not only the formation of surface oxygen vacancy of In 2 O 3 but also CO 2 adsorption and activation. Enhanced activity was thereby achieved for selective hydrogenation of CO 2 to methanol. A CO 2 conversion of 17.1 % with methanol selectivity of 56.1 %, corresponding to a methanol space time yield (STY) up to 0.5448 g MeOH h −1 g cat −1 , has been obtained under 300 °C, 5 MPa, 76/19/5 of H 2 /CO 2 /N 2 (molar ratio) and 21,000 cm 3 h −1 g −1 of gas hourly space velocity. Under the same reaction condition, the CO 2 conversion is only 9.4 % with a methanol STY of 0.3402 g MeOH h −1 g cat −1 over In 2 O 3 . The methanol selectivity can be even higher than 70 % at the reaction temperatures below 275 °C for Rh/In 2 O 3 catalyst.

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Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii	Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii, 1, 0.95% Autonomous Non-profit Organization Editorial Board of the journal Uspekhi Khimii 1 publication, 0.95%
Frontiers Media S.A.	Frontiers Media S.A., 1, 0.95% Frontiers Media S.A. 1 publication, 0.95%
	5 10 15 20 25 30 35 40 45

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Wang J. et al. CO2 hydrogenation to methanol over Rh/In2O3 catalyst // Catalysis Today. 2021. Vol. 365. pp. 341-347.

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Wang J., Sun K., Jia X., Liu C. J. CO2 hydrogenation to methanol over Rh/In2O3 catalyst // Catalysis Today. 2021. Vol. 365. pp. 341-347.

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RIS Copy

TY - JOUR

DO - 10.1016/j.cattod.2020.05.020

UR - https://doi.org/10.1016/j.cattod.2020.05.020

TI - CO2 hydrogenation to methanol over Rh/In2O3 catalyst

T2 - Catalysis Today

AU - Wang, Jingjing

AU - Sun, Kaihang

AU - Jia, Xinyu

AU - Liu, Chang Jun

PY - 2021

DA - 2021/04/01 00:00:00

PB - Elsevier

SP - 341-347

VL - 365

SN - 0920-5861

ER -

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@article{2021_Wang,

author = {Jingjing Wang and Kaihang Sun and Xinyu Jia and Chang Jun Liu},

title = {CO2 hydrogenation to methanol over Rh/In2O3 catalyst},

journal = {Catalysis Today},

year = {2021},

volume = {365},

publisher = {Elsevier},

month = {apr},

url = {https://doi.org/10.1016/j.cattod.2020.05.020},

pages = {341--347},

doi = {10.1016/j.cattod.2020.05.020}

}

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Elsevier

Journal

Catalysis Today

Quartile SCImago

Quartile WOS

Impact factor

5.3

ISSN

09205861 (Print)