CeO2-supported Ni and Co catalysts prepared by a solution combustion method for H2 production from glycerol: the effect of fuel/oxidizer ratio and oxygen excess

Anna N. Matveyeva; Shamil O. Omarov; Marianna A. Gavrilova; Andrey D. Trofimuk; Johan Wärnå; Dmitry Yu Murzin

doi:10.1039/d3cy00854a

CeO₂-supported Ni and Co catalysts prepared by a solution combustion method for H₂ production from glycerol: the effect of fuel/oxidizer ratio and oxygen excess

Anna N. Matveyeva^*, Shamil O. Omarov, Marianna A. Gavrilova, Andrey D. Trofimuk, Johan Wärnå, Dmitry Yu Murzin^*

^*Corresponding author for this work

Industrial Chemistry and Reaction Engineering

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Abstract

Glycerol is a promising raw material for obtaining various chemicals and fuels, including H₂. Nevertheless, the development of cost-effective and stable catalysts with high activity and selectivity for H₂ production from glycerol under mild conditions has been a serious problem for their practical use. In this work, a series of CeO₂-supported Ni and Co catalysts with the content of Ni and Co as metal(ii) oxides being 30 wt% was prepared by solution combustion synthesis via changing the fuel/oxidizer ratio (φ = 0.7-3), the fuel type (glycine, urea), and the oxygen excess. Thus, various species of Ni and Co and their interactions with CeO₂ were obtained, which affected the reduction sequence, defectiveness, textural characteristics, and activity in steam and aqueous-phase reforming of glycerol. To study the characteristics of the obtained samples, instrumental methods such as XRD, DTA-TGA, low-temperature N₂ physisorption, SEM-EDX, H₂-TPR, and H₂- and CO₂-TPD, as well as Raman spectroscopy, were used. The results demonstrated that the Ni-Ce-O system synthesized with a high glycine-to-oxidizer ratio can successfully compete with catalysts based on noble metals (Pt/γ-Al₂O₃) in aqueous-phase reforming of glycerol.

Original language	English
Pages (from-to)	5387-5406
Number of pages	20
Journal	Catalysis Science and Technology
Volume	13
Issue number	18
DOIs	https://doi.org/10.1039/d3cy00854a
Publication status	Published - 21 Sept 2023
MoE publication type	A1 Journal article-refereed

Funding

This research was funded by the Russian Science Foundation (grant number 22-23-20094, https://rscf.ru/project/22-23-20094/ , accessed on 18 June 2023) and the St. Petersburg Science Foundation (agreement number 26/2022 from 14 April 2022). The authors would like to thank MSc Maria Chebanenko (Ioffe Institute) and MSc Maria Serazhim (St. Petersburg State Institute of Technology (Technical University)) for performing N physisorption measurements. 2

Funders	Funder number
St. Petersburg Science Foundation	26/2022
Russian Science Foundation	22-23-20094

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10.1039/d3cy00854a

d3cy00854aFinal published version, 3.62 MBLicence: CC BY

https://urn.fi/URN:NBN:fi-fe202401294608

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title = "CeO2-supported Ni and Co catalysts prepared by a solution combustion method for H2 production from glycerol: the effect of fuel/oxidizer ratio and oxygen excess",

abstract = "Glycerol is a promising raw material for obtaining various chemicals and fuels, including H2. Nevertheless, the development of cost-effective and stable catalysts with high activity and selectivity for H2 production from glycerol under mild conditions has been a serious problem for their practical use. In this work, a series of CeO2-supported Ni and Co catalysts with the content of Ni and Co as metal(ii) oxides being 30 wt% was prepared by solution combustion synthesis via changing the fuel/oxidizer ratio (φ = 0.7-3), the fuel type (glycine, urea), and the oxygen excess. Thus, various species of Ni and Co and their interactions with CeO2 were obtained, which affected the reduction sequence, defectiveness, textural characteristics, and activity in steam and aqueous-phase reforming of glycerol. To study the characteristics of the obtained samples, instrumental methods such as XRD, DTA-TGA, low-temperature N2 physisorption, SEM-EDX, H2-TPR, and H2- and CO2-TPD, as well as Raman spectroscopy, were used. The results demonstrated that the Ni-Ce-O system synthesized with a high glycine-to-oxidizer ratio can successfully compete with catalysts based on noble metals (Pt/γ-Al2O3) in aqueous-phase reforming of glycerol.",

author = "Matveyeva, {Anna N.} and Omarov, {Shamil O.} and Gavrilova, {Marianna A.} and Trofimuk, {Andrey D.} and Johan W{\"a}rn{\aa} and Murzin, {Dmitry Yu}",

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CeO₂-supported Ni and Co catalysts prepared by a solution combustion method for H₂ production from glycerol: the effect of fuel/oxidizer ratio and oxygen excess. / Matveyeva, Anna N.; Omarov, Shamil O.; Gavrilova, Marianna A. et al.
In: Catalysis Science and Technology, Vol. 13, No. 18, 21.09.2023, p. 5387-5406.

Research output: Contribution to journal › Article › Scientific › peer-review

TY - JOUR

T1 - CeO2-supported Ni and Co catalysts prepared by a solution combustion method for H2 production from glycerol

T2 - the effect of fuel/oxidizer ratio and oxygen excess

AU - Matveyeva, Anna N.

AU - Omarov, Shamil O.

AU - Gavrilova, Marianna A.

AU - Trofimuk, Andrey D.

AU - Wärnå, Johan

AU - Murzin, Dmitry Yu

PY - 2023/9/21

Y1 - 2023/9/21

N2 - Glycerol is a promising raw material for obtaining various chemicals and fuels, including H2. Nevertheless, the development of cost-effective and stable catalysts with high activity and selectivity for H2 production from glycerol under mild conditions has been a serious problem for their practical use. In this work, a series of CeO2-supported Ni and Co catalysts with the content of Ni and Co as metal(ii) oxides being 30 wt% was prepared by solution combustion synthesis via changing the fuel/oxidizer ratio (φ = 0.7-3), the fuel type (glycine, urea), and the oxygen excess. Thus, various species of Ni and Co and their interactions with CeO2 were obtained, which affected the reduction sequence, defectiveness, textural characteristics, and activity in steam and aqueous-phase reforming of glycerol. To study the characteristics of the obtained samples, instrumental methods such as XRD, DTA-TGA, low-temperature N2 physisorption, SEM-EDX, H2-TPR, and H2- and CO2-TPD, as well as Raman spectroscopy, were used. The results demonstrated that the Ni-Ce-O system synthesized with a high glycine-to-oxidizer ratio can successfully compete with catalysts based on noble metals (Pt/γ-Al2O3) in aqueous-phase reforming of glycerol.

AB - Glycerol is a promising raw material for obtaining various chemicals and fuels, including H2. Nevertheless, the development of cost-effective and stable catalysts with high activity and selectivity for H2 production from glycerol under mild conditions has been a serious problem for their practical use. In this work, a series of CeO2-supported Ni and Co catalysts with the content of Ni and Co as metal(ii) oxides being 30 wt% was prepared by solution combustion synthesis via changing the fuel/oxidizer ratio (φ = 0.7-3), the fuel type (glycine, urea), and the oxygen excess. Thus, various species of Ni and Co and their interactions with CeO2 were obtained, which affected the reduction sequence, defectiveness, textural characteristics, and activity in steam and aqueous-phase reforming of glycerol. To study the characteristics of the obtained samples, instrumental methods such as XRD, DTA-TGA, low-temperature N2 physisorption, SEM-EDX, H2-TPR, and H2- and CO2-TPD, as well as Raman spectroscopy, were used. The results demonstrated that the Ni-Ce-O system synthesized with a high glycine-to-oxidizer ratio can successfully compete with catalysts based on noble metals (Pt/γ-Al2O3) in aqueous-phase reforming of glycerol.

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CeO₂-supported Ni and Co catalysts prepared by a solution combustion method for H₂ production from glycerol: the effect of fuel/oxidizer ratio and oxygen excess

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