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作者:

Chen, Qi (Chen, Qi.) | Liao, Fuxia (Liao, Fuxia.) | Ding, Chenyu (Ding, Chenyu.) | Hu, Xiaomin (Hu, Xiaomin.) | Xu, Yingchun (Xu, Yingchun.) | Cheng, Peng (Cheng, Peng.) | Zheng, Zhanfeng (Zheng, Zhanfeng.) | Huang, Lihong (Huang, Lihong.) | Wang, Ning (Wang, Ning.)

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EI Scopus SCIE

摘要:

Hydrogen can be produced from acetic acid (HAc) derived from renewable biomass oil via auto -thermal reforming (ATR), which is conducive to upgrading current energy supply in a carbon -neutral and clean way. However, deactivations caused by carbon deposition, sintering, and oxidation have been long-standing obstacles for nickel -based catalysts. To address these challenges, we synthesized a series of Ni-Mg-Ti-O catalysts by Pechini method and tested in ATR. Characterization results showed that mixed oxide of Ni1-xMgxTiO3 +/-delta perovskite was formed after calcination and transformed into Ni0, MgTiO3 and TiO2 after hydrogen reduction, while the Ti4+/ Ti3+ redox cycle promoted formation of oxygen vacancies. In addition, the in -situ evolution of MgTiO3 and TiO2 into MgTi2O5 during the ATR reaction was proved, which suppressed sintering and oxidation of Ni species. Density functional theory (DFT) study confirmed the electron transfer over the Ni/MgTi2O5 interface, as well as the enhanced metal -support interaction, which promoted adsorption and dissociation of acetic acid molecules. Consequently, the Ni0.08Mg0.10Ti0.37O0.92 +/-delta (N10MT) catalyst with Ni/MgTi2O5 interface showed high stability and activity with hydrogen yield at 2.72 mol-H2/mol-HAc.

关键词:

Auto-thermal reforming DFT Ni-based catalyst Acetic acid

作者机构:

  • [ 1 ] [Chen, Qi]Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Peoples R China
  • [ 2 ] [Huang, Lihong]Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Peoples R China
  • [ 3 ] [Chen, Qi]Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China
  • [ 4 ] [Liao, Fuxia]Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China
  • [ 5 ] [Ding, Chenyu]Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China
  • [ 6 ] [Xu, Yingchun]Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China
  • [ 7 ] [Cheng, Peng]Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China
  • [ 8 ] [Huang, Lihong]Chengdu Univ Technol, Coll Mat & Chem & Chem Engn, Chengdu 610059, Peoples R China
  • [ 9 ] [Hu, Xiaomin]Beijing Univ Technol, Coll Environm Sci & Engn, Beijing 100124, Peoples R China
  • [ 10 ] [Wang, Ning]Beijing Univ Technol, Coll Environm Sci & Engn, Beijing 100124, Peoples R China
  • [ 11 ] [Zheng, Zhanfeng]Chinese Acad Sci, State Key Lab Coal Convers, Inst Coal Chem, Taiyuan 030001, Peoples R China
  • [ 12 ] [Zheng, Zhanfeng]Chinese Acad Sci, Inst Coal Chem, Natl Key Lab High Efficiency & Low Carbon Utilizat, Taiyuan 030001, Peoples R China
  • [ 13 ] [Zheng, Zhanfeng]Univ Chinese Acad Sci, Ctr Mat Sci & Optoelect Engn, Beijing 100049, Peoples R China

通讯作者信息:

  • [Huang, Lihong]Chengdu Univ Technol, State Key Lab Geohazard Prevent & Geoenvironm Prot, Chengdu 610059, Peoples R China;;[Wang, Ning]Beijing Univ Technol, Coll Environm Sci & Engn, Beijing 100124, Peoples R China;;

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来源 :

CATALYSIS TODAY

ISSN: 0920-5861

年份: 2024

卷: 432

5 . 3 0 0

JCR@2022

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SCOPUS被引频次: 3

ESI高被引论文在榜: 0 展开所有

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