Journal of Inorganic Materials, Volume. 34, Issue 8, 811(2019)

Effect of Fe on CoxAl3FeyOm±δ Catalysts for Hydrogen Production by Auto-thermal Reforming of Acetic Acid

Qiao WANG... Qing ZHOU, Shuang AN, Hao YANG and Li-Hong HUANG* |Show fewer author(s)
Author Affiliations
  • College of Materials and Chemistry & Chemical Engineering, Chengdu University of Technology, Chengdu 610059, China
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    Bio-oil obtained from biomass can be used as an important raw material for hydrogen production. In this work, acetic acid (HAc) from bio-oil was selected as the model compound to produce hydrogen via auto-thermal reforming (ATR). Fe-promoted Co-based hydrotalcite-like CoxAl3FeyOm±δ catalysts were prepared by co-precipitation method and characterized by XRD, N2 physisorption, H2-TPR and TG to study the relationship between the catalytic performance and structure within these catalysts. The characterization results show that hydrotalcite-like structure of (Co/Fe)xAl2CO3(OH)y·zH2O were obtained by co-precipitation, then transformed to alumina supported spinel structures, including CoAl2O4, Co3O4, Fe3O4, and FeAl2O4, after calcination. BJH analysis indicated that within these calcined CoxAl3FeyOm±δ catalysts, there were mesoporous structures, in which the Co0.45Al3Fe0.4O5.55±δ centered structure with pore size distribution 4 nm. As suggested by H2-TPR and XRD, the reducibility of Co metal was enhanced with the Fe promoter, and there were CoFe alloys formed after reduction. In the stability test, the hydrogen yield reached 2.72 mol-H2/mol-HAc and remained stable, meanwhile, the CoFe alloy was also stable and no carbon deposit was detected after reaction, indicating that there was high resistance to oxidation and coking within Fe-promoted CoxAl3FeyOδ catalysts.

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    Qiao WANG, Qing ZHOU, Shuang AN, Hao YANG, Li-Hong HUANG. Effect of Fe on CoxAl3FeyOm±δ Catalysts for Hydrogen Production by Auto-thermal Reforming of Acetic Acid[J]. Journal of Inorganic Materials, 2019, 34(8): 811

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    Paper Information

    Category: RESEARCH PAPER

    Received: Aug. 13, 2018

    Accepted: --

    Published Online: Sep. 26, 2021

    The Author Email: HUANG Li-Hong (huanglihong06@cdut.cn)

    DOI:10.15541/jim20180356

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