Fishbone derived-hydroxyapatite supported Ni-Zr nanocatalyst for CO2 methanation: Synergistic effects of support and zirconia

Fishbone derived-hydroxyapatite supported Ni-Zr nanocatalyst for CO2 methanation: Synergistic effects of support and zirconia

[Display omitted] Herein, the effectiveness of nickel-zirconia nanocatalyst decorated on hydroxyapatite (HA) is examined as a potential candidate for the methanation of carbon dioxide (CO2). Co-impregnation was used to produce undoped nickel as well as zirconia-doped nickel catalysts that were suppo...

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Bibliographic Details
Published in:Arabian journal of chemistry Vol. 16; no. 12; p. 105307
Main Authors: Doan Trang Tran, Ngoc, Ngoc Han Che, Thi, Thuy Van Nguyen, Thi, Long Do, Ba, Gia-Thien Ho, Thanh, Anh Nguyen, Phung, Thuy Phuong Pham, Thi, Tri, Nguyen, Ky Phuong Ha, Huynh
Format: Journal Article
Language:English
Published: Elsevier B.V 01-12-2023
Elsevier
Subjects:
CO2 methanation
Fishbone
Hydroxyapatite
Nickel nanocatalyst
Zirconia
Zirconia
Fishbone
Hydroxyapatite
CO2 methanation
Nickel nanocatalyst
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Summary:[Display omitted] Herein, the effectiveness of nickel-zirconia nanocatalyst decorated on hydroxyapatite (HA) is examined as a potential candidate for the methanation of carbon dioxide (CO2). Co-impregnation was used to produce undoped nickel as well as zirconia-doped nickel catalysts that were supported on hydroxyapatite derived from fishbone. The prepared catalysts were characterized using several methods. With the molar ratio of H2/CO2 fixed at 4/1, the catalytic activity was evaluated through the CO2 methanation at low temperatures ranging of 250–––400 °C. A high dispersion of nickel particles over the catalyst surface with a size range of 30–––40 nm was provided as a function of HA and zirconia. This led to an improvement in the reducibility and CO2 adsorption capacity of the catalysts and an enhancement of the efficiency in CO2 methanation. At a reaction temperature of 400 °C, the data reveal that the 10Ni/HA sample doped with 4 wt% zirconia was the most effective. At this temperature, the CO2 conversion reached 92.9%, and the CH4 selectivity reached approximately 100%.
ISSN:1878-5352
1878-5379
DOI:10.1016/j.arabjc.2023.105307