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author:

Ma, Zongyu (Ma, Zongyu.) [1] | Zhang, Zhen (Zhang, Zhen.) [2] | Chen, Yinye (Chen, Yinye.) [3] | Su, Jianghua (Su, Jianghua.) [4] | Zuo, Jiachang (Zuo, Jiachang.) [5] | Yang, Mengqing (Yang, Mengqing.) [6] | Wang, Xiuyun (Wang, Xiuyun.) [7] | Qian, Qingrong (Qian, Qingrong.) [8] | Chen, Qinghua (Chen, Qinghua.) [9] | Luo, Yongjin (Luo, Yongjin.) [10]

Indexed by:

EI Scopus SCIE

Abstract:

In-plane sulfur vacancies in the MoS2 catalyst exhibit great potential for low-temperature CO2 hydrogenation to methanol. However, both CO2 and H-2 adsorb and activate at sulfur vacancies, leading to competition between them. Anchoring atomically dispersed Co atoms over MoS2 may facilitate H-2 adsorption and activation. Here, a thiourea-assisted strategy was employed to construct a Co-thiourea complex, which transformed into atomically dispersed Co species after heat treatment. Under reaction conditions of 5 MPa and 220 degrees C, the 0.5Co/MoS2 catalyst achieved a methanol space-time yield of 323 mg(MeOH) g(cat)(-1) h(-1) after induction, with stability maintained for at least 500 h, compared to 177 mg(MeOH) g(cat)(-1) h(-1) for pristine MoS2. Mechanistic study revealed that the hydrogenation of CO2 to methanol follows the COOH* pathway, where CO2 is first hydrogenated to COOH* intermediate and then gradually hydrogenated CH3O* species. This work presents a viable strategy for developing atomically dispersed metal-MoS2 catalysts for CO2 hydrogenation to methanol.

Keyword:

Catalysis mechanism CO2 hydrogenation Co/MoS2 Methanol S vacancies

Community:

  • [ 1 ] [Ma, Zongyu]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 2 ] [Zhang, Zhen]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 3 ] [Chen, Yinye]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 4 ] [Su, Jianghua]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 5 ] [Zuo, Jiachang]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 6 ] [Yang, Mengqing]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 7 ] [Qian, Qingrong]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 8 ] [Chen, Qinghua]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 9 ] [Luo, Yongjin]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China
  • [ 10 ] [Wang, Xiuyun]Qingyuan Innovat Lab, Quanzhou 362100, Peoples R China
  • [ 11 ] [Wang, Xiuyun]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China

Reprint 's Address:

  • [Zuo, Jiachang]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China;;[Luo, Yongjin]Fujian Normal Univ, Coll Environm & Resource Sci, Fujian Key Lab Pollut Control & Resource Reuse, Fuzhou 350007, Peoples R China;;[Wang, Xiuyun]Qingyuan Innovat Lab, Quanzhou 362100, Peoples R China;;[Wang, Xiuyun]Fuzhou Univ, Natl Engn Res Ctr Chem Fertilizer Catalyst, Fuzhou 350002, Peoples R China

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Source :

ACS SUSTAINABLE CHEMISTRY & ENGINEERING

ISSN: 2168-0485

Year: 2025

Issue: 27

Volume: 13

Page: 10690-10700

7 . 1 0 0

JCR@2023

Cited Count:

WoS CC Cited Count:

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 0

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