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author:

Yue, Yihua (Yue, Yihua.) [1] | Tian, Jian (Tian, Jian.) [2] | Ma, Jiechao (Ma, Jiechao.) [3] | Yang, Shui (Yang, Shui.) [4] | Li, Wen (Li, Wen.) [5] | Huang, Jiale (Huang, Jiale.) [6] | Li, Qingbiao (Li, Qingbiao.) [7] | Zhan, Guowu (Zhan, Guowu.) [8]

Indexed by:

EI Scopus SCIE

Abstract:

Herein, Ga-ZnZrOx&ZSM-5 bifunctional catalysts were designed for CO2 thermal hydrogenation to aromatics, particularly, aiming to enhance the selectivity of high-value BTX (i.e., benzene, toluene, and xylene). It was evident that the exterior surface properties and acidity of ZSM-5 can be effectively tailored by in-situ silicon deposition originating from the rice husk template. Catalytic performance assessments demonstrate an optimized catalyst achieving 88.1 % aromatics selectivity (exclusive CO) in a single pass, with a notable 45.2 % BTX selectivity within total aromatics and a low CO selectivity of 23.6 %. This superior performance is attributed to the in-situ silicon deposition on ZSM-5 during one-pot synthesis and the optimized spacing between Ga-ZnZrOx and ZSM-5 facilitated by the rice husk platform. Furthermore, in-situ DRIFTS analysis identifies key reaction intermediates. This study offers an effective strategy for tuning zeolite acidity using rice husks, while modulating metal oxide-zeolite proximity on the bio-SiO2 platform, thus boosting CO2 conversion to aromatics.

Keyword:

Aromatics Bifunctional catalysts CO2 hydrogenation Rice husk ZSM-5 zeolites

Community:

  • [ 1 ] [Yue, Yihua]Xiamen Univ, Coll Chem & Chem Engn, 422 Siming South Rd, Xiamen 361005, Fujian, Peoples R China
  • [ 2 ] [Ma, Jiechao]Xiamen Univ, Coll Chem & Chem Engn, 422 Siming South Rd, Xiamen 361005, Fujian, Peoples R China
  • [ 3 ] [Yang, Shui]Xiamen Univ, Coll Chem & Chem Engn, 422 Siming South Rd, Xiamen 361005, Fujian, Peoples R China
  • [ 4 ] [Huang, Jiale]Xiamen Univ, Coll Chem & Chem Engn, 422 Siming South Rd, Xiamen 361005, Fujian, Peoples R China
  • [ 5 ] [Li, Qingbiao]Xiamen Univ, Coll Chem & Chem Engn, 422 Siming South Rd, Xiamen 361005, Fujian, Peoples R China
  • [ 6 ] [Tian, Jian]Huaqiao Univ, Acad Adv Carbon Convers Technol, Coll Chem Engn, 668 Jimei Ave, Xiamen 361021, Fujian, Peoples R China
  • [ 7 ] [Zhan, Guowu]Huaqiao Univ, Acad Adv Carbon Convers Technol, Coll Chem Engn, 668 Jimei Ave, Xiamen 361021, Fujian, Peoples R China
  • [ 8 ] [Li, Wen]Fuzhou Univ, Coll Adv Mfg, 1 Shui Cheng Rd, Jinjiang 362200, Fujian, Peoples R China

Reprint 's Address:

  • [Huang, Jiale]Xiamen Univ, Coll Chem & Chem Engn, 422 Siming South Rd, Xiamen 361005, Fujian, Peoples R China;;[Li, Qingbiao]Xiamen Univ, Coll Chem & Chem Engn, 422 Siming South Rd, Xiamen 361005, Fujian, Peoples R China;;[Zhan, Guowu]Huaqiao Univ, Acad Adv Carbon Convers Technol, Coll Chem Engn, 668 Jimei Ave, Xiamen 361021, Fujian, Peoples R China

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Source :

APPLIED CATALYSIS B-ENVIRONMENT AND ENERGY

ISSN: 0926-3373

Year: 2024

Volume: 355

2 0 . 3 0 0

JCR@2023

Cited Count:

WoS CC Cited Count: 3

SCOPUS Cited Count: 3

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 2

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