Microalgae gasification over Ni loaded perovskites for enhanced biohydrogen generation

Soheil Valizadeh; Yasin Khani; Abid Farooq; Gopalakrishnan Kumar; Pau Loke Show; Wei Hsin Chen; See Hoon Lee; Young Kwon Park

doi:10.1016/j.biortech.2023.128638

Microalgae gasification over Ni loaded perovskites for enhanced biohydrogen generation

Soheil Valizadeh, Yasin Khani, Abid Farooq, Gopalakrishnan Kumar, Pau Loke Show, Wei Hsin Chen, See Hoon Lee, Young Kwon Park

School of Environmental Engineering

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

11 Scopus citations

Abstract

Steam gasification of microalgae upon perovskite oxide-supported nickel (Ni) catalysts was carried out for H₂-rich gas production. Ni-perovskite oxide catalysts with partial substitution of B in perovskite structures (Ni/CaZrO₃, Ni/Ca(Zr_0.8Ti_0.2)O₃, and Ni/Ca(Zr_0.6Ti_0.4)O₃) were synthesized and compared with those of the Ni/Al₂O₃ catalyst. The perovskite oxide supports improved Ni dispersion by reducing the particle size and strengthening the Ni-support interaction. Higher gas yields and H₂ selectivity were obtained using Ni-perovskite oxide catalysts rather than Ni/Al₂O₃. In particular, Ni/Ca(Zr_0.8Ti_0.2)O₃ showed the highest activity and selectivity for H₂ production because of the synergetic effect of metallic Ni and elements present in the perovskite structures caused by high catalytic activity coupled with enhanced oxygen mobility. Moreover, increasing the temperature promoted the yield of gas and H₂ content. Overall, considering the outstanding advantages of perovskite oxides as supports for Ni catalysts is a promising prospect for H₂ production via gasification technology.

Original language	English
Article number	128638
Journal	Bioresource Technology
Volume	372
DOIs	https://doi.org/10.1016/j.biortech.2023.128638
State	Published - Mar 2023

Keywords

Hydrogen production
Microalgae
Ni catalysts
Perovskite oxides
Steam gasification

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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title = "Microalgae gasification over Ni loaded perovskites for enhanced biohydrogen generation",

abstract = "Steam gasification of microalgae upon perovskite oxide-supported nickel (Ni) catalysts was carried out for H2-rich gas production. Ni-perovskite oxide catalysts with partial substitution of B in perovskite structures (Ni/CaZrO3, Ni/Ca(Zr0.8Ti0.2)O3, and Ni/Ca(Zr0.6Ti0.4)O3) were synthesized and compared with those of the Ni/Al2O3 catalyst. The perovskite oxide supports improved Ni dispersion by reducing the particle size and strengthening the Ni-support interaction. Higher gas yields and H2 selectivity were obtained using Ni-perovskite oxide catalysts rather than Ni/Al2O3. In particular, Ni/Ca(Zr0.8Ti0.2)O3 showed the highest activity and selectivity for H2 production because of the synergetic effect of metallic Ni and elements present in the perovskite structures caused by high catalytic activity coupled with enhanced oxygen mobility. Moreover, increasing the temperature promoted the yield of gas and H2 content. Overall, considering the outstanding advantages of perovskite oxides as supports for Ni catalysts is a promising prospect for H2 production via gasification technology.",

keywords = "Hydrogen production, Microalgae, Ni catalysts, Perovskite oxides, Steam gasification",

author = "Soheil Valizadeh and Yasin Khani and Abid Farooq and Gopalakrishnan Kumar and Show, {Pau Loke} and Chen, {Wei Hsin} and Lee, {See Hoon} and Park, {Young Kwon}",

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year = "2023",

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doi = "10.1016/j.biortech.2023.128638",

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T1 - Microalgae gasification over Ni loaded perovskites for enhanced biohydrogen generation

AU - Valizadeh, Soheil

AU - Khani, Yasin

AU - Farooq, Abid

AU - Kumar, Gopalakrishnan

AU - Show, Pau Loke

AU - Chen, Wei Hsin

AU - Lee, See Hoon

AU - Park, Young Kwon

PY - 2023/3

Y1 - 2023/3

N2 - Steam gasification of microalgae upon perovskite oxide-supported nickel (Ni) catalysts was carried out for H2-rich gas production. Ni-perovskite oxide catalysts with partial substitution of B in perovskite structures (Ni/CaZrO3, Ni/Ca(Zr0.8Ti0.2)O3, and Ni/Ca(Zr0.6Ti0.4)O3) were synthesized and compared with those of the Ni/Al2O3 catalyst. The perovskite oxide supports improved Ni dispersion by reducing the particle size and strengthening the Ni-support interaction. Higher gas yields and H2 selectivity were obtained using Ni-perovskite oxide catalysts rather than Ni/Al2O3. In particular, Ni/Ca(Zr0.8Ti0.2)O3 showed the highest activity and selectivity for H2 production because of the synergetic effect of metallic Ni and elements present in the perovskite structures caused by high catalytic activity coupled with enhanced oxygen mobility. Moreover, increasing the temperature promoted the yield of gas and H2 content. Overall, considering the outstanding advantages of perovskite oxides as supports for Ni catalysts is a promising prospect for H2 production via gasification technology.

AB - Steam gasification of microalgae upon perovskite oxide-supported nickel (Ni) catalysts was carried out for H2-rich gas production. Ni-perovskite oxide catalysts with partial substitution of B in perovskite structures (Ni/CaZrO3, Ni/Ca(Zr0.8Ti0.2)O3, and Ni/Ca(Zr0.6Ti0.4)O3) were synthesized and compared with those of the Ni/Al2O3 catalyst. The perovskite oxide supports improved Ni dispersion by reducing the particle size and strengthening the Ni-support interaction. Higher gas yields and H2 selectivity were obtained using Ni-perovskite oxide catalysts rather than Ni/Al2O3. In particular, Ni/Ca(Zr0.8Ti0.2)O3 showed the highest activity and selectivity for H2 production because of the synergetic effect of metallic Ni and elements present in the perovskite structures caused by high catalytic activity coupled with enhanced oxygen mobility. Moreover, increasing the temperature promoted the yield of gas and H2 content. Overall, considering the outstanding advantages of perovskite oxides as supports for Ni catalysts is a promising prospect for H2 production via gasification technology.

KW - Hydrogen production

KW - Microalgae

KW - Ni catalysts

KW - Perovskite oxides

KW - Steam gasification

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Microalgae gasification over Ni loaded perovskites for enhanced biohydrogen generation

Abstract

Keywords

UN SDGs

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