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Author:

Wang, Mingyue (Wang, Mingyue.) | Li, Feifei (Li, Feifei.) | Dong, Jiale (Dong, Jiale.) | Lin, Xingtao (Lin, Xingtao.) | Liu, Xianyun (Liu, Xianyun.) | Wang, Dazhi (Wang, Dazhi.) | Cai, Weijie (Cai, Weijie.)

Indexed by:

EI Scopus SCIE

Abstract:

Up to date, to design the efficient catalysts for CO2 reforming with ethanol is of great challenge due to the severe coke deposition. In this work, MOF derived CoCeOx nanocomposite (CoCe-MOF) with outstanding performance for ethanol dry reforming was successfully prepared. Indeed, the experimental results revealed that ethanol conversion was 97% with a H-2/CO ratio of ca.1 and negligible acetone formation (0.4 mol%) at 550 degrees C which was better than that of Co3O4/CeO2 synthesized by impregnation technique. Moreover, no obvious deactivation was observed even after 40 h time-on-stream tests for CoCe-MOF catalyst. Interestingly, ethanol conversion over CoCe-MOF slightly decreased from 99% to 96% while the value over Co3O4/CeO2 sample remarkably declined from 90% to 79% as well as the increase of byproduct formation (acetone from 1.1 mol% to 1.9 mol%). Particularly, the relationship between catalytic performance and morphology structure were investigated in detail by a series of characterization technique such as XRD, H-2-TPR, BET, XPS, TEM, Raman etc. The results demonstrated that the uniform aliovalent incorporation of Co into CeO2 framework greatly improved the physicochemical features of the CoCe-MOF catalyst including the generation of more oxygen defects/surface oxygen species (14,5% of Ce3+ species), stronger Co-O-Ce interaction, lower temperature reducibility etc. Hence, these positive factors might explain its high activity and stability. Eventually, this study might provide a simple method to develop the high-performance catalysts for dry reforming process and other heterogeneous catalytic reactions.

Keyword:

MOF Syngas Anti-coking CoCeOx Ethanol dry reforming

Author Community:

  • [ 1 ] [Wang, Mingyue]Dalian Polytech Univ, Fac Light Ind & Chem Engn, Dalian 116023, Peoples R China
  • [ 2 ] [Li, Feifei]Dalian Polytech Univ, Fac Light Ind & Chem Engn, Dalian 116023, Peoples R China
  • [ 3 ] [Dong, Jiale]Dalian Polytech Univ, Fac Light Ind & Chem Engn, Dalian 116023, Peoples R China
  • [ 4 ] [Wang, Dazhi]Dalian Polytech Univ, Fac Light Ind & Chem Engn, Dalian 116023, Peoples R China
  • [ 5 ] [Cai, Weijie]Dalian Polytech Univ, Fac Light Ind & Chem Engn, Dalian 116023, Peoples R China
  • [ 6 ] [Lin, Xingtao]Beijing Univ Technol, Fac Environm & Life, Beijing 100124, Peoples R China
  • [ 7 ] [Liu, Xianyun]Henan Polytech Univ, Henan Key Lab Coal Green Convers, Jiaozuo 454000, Peoples R China

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Source :

JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING

ISSN: 2213-2929

Year: 2022

Issue: 3

Volume: 10

7 . 7

JCR@2022

7 . 7 0 0

JCR@2022

JCR Journal Grade:1

CAS Journal Grade:2

Cited Count:

WoS CC Cited Count: 18

SCOPUS Cited Count: 19

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 5

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