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Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production

Nowadays, catalytic supercritical water gasification (SCWG) is undoubtedly used for production of H2-rich syngas from biomass. The present study reported the synthesis and characterisation of Mg1-xNixO (x = 0.05, 0.10, 0.15, 0.20) nanomaterials that were obtained via self-propagating combustion (SPC...

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Main Authors: Mastuli, Mohd Sufri, Kasim, Muhd Firdaus, Mahat, Annie Maria, Mijan, N. Asikin, S., Sivasangar, Yap, Taufiq Yun Hin
Format: Article
Published: Elsevier 2020
Online Access:http://psasir.upm.edu.my/id/eprint/85941/
https://www.sciencedirect.com/science/article/pii/S0360319920333875
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spelling my.upm.eprints.859412023-10-31T06:24:19Z http://psasir.upm.edu.my/id/eprint/85941/ Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production Mastuli, Mohd Sufri Kasim, Muhd Firdaus Mahat, Annie Maria Mijan, N. Asikin S., Sivasangar Yap, Taufiq Yun Hin Nowadays, catalytic supercritical water gasification (SCWG) is undoubtedly used for production of H2-rich syngas from biomass. The present study reported the synthesis and characterisation of Mg1-xNixO (x = 0.05, 0.10, 0.15, 0.20) nanomaterials that were obtained via self-propagating combustion (SPC) method, and catalysed the SCWG for the first time. It had found that increased the nickel (Ni) content in the catalyst reduced the crystallite size, thus, increased the specific surface area, which influenced the catalytic activity. The specific surface area followed the order of Mg0.95Ni0.05O (36.2 m2 g−1) < Mg0.90Ni0.10O (58.9 m2 g−1) < Mg0.85Ni0.15O (63.6 m2 g−1) < Mg0.80Ni0.20O (67.9 m2 g−1). From the Rietveld refinement, the Ni that was successfully partial substituted in the cubic crystal structure of MgO resulting in a cell contraction which ascribed the reduction of crystallite size. Increased the amount of Ni also narrowed the pore size distribution ranging between 4.17 nm and 6.23 nm, as well as increased the basicity active site up to 5741.0 μmol g−1 at medium basic strength. All the synthesised nanocatalysts were catalysed the SCWG of OPF (oil palm frond) biomass. Among them, the mesoporous Mg0.80Ni0.20O nanocatalyst exhibited the highest total gas volume of 193.5 mL g−1 with 361.7% increment of H2 yield than that of the non-catalytic reaction. Elsevier 2020 Article PeerReviewed Mastuli, Mohd Sufri and Kasim, Muhd Firdaus and Mahat, Annie Maria and Mijan, N. Asikin and S., Sivasangar and Yap, Taufiq Yun Hin (2020) Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production. International Journal of Hydrogen Energy, 45 (58). 33218 - 33234. ISSN 0360-3199; ESSN: 1879-3487 https://www.sciencedirect.com/science/article/pii/S0360319920333875 10.1016/j.ijhydene.2020.09.020
institution Universiti Putra Malaysia
building UPM Library
collection Institutional Repository
continent Asia
country Malaysia
content_provider Universiti Putra Malaysia
content_source UPM Institutional Repository
url_provider http://psasir.upm.edu.my/
description Nowadays, catalytic supercritical water gasification (SCWG) is undoubtedly used for production of H2-rich syngas from biomass. The present study reported the synthesis and characterisation of Mg1-xNixO (x = 0.05, 0.10, 0.15, 0.20) nanomaterials that were obtained via self-propagating combustion (SPC) method, and catalysed the SCWG for the first time. It had found that increased the nickel (Ni) content in the catalyst reduced the crystallite size, thus, increased the specific surface area, which influenced the catalytic activity. The specific surface area followed the order of Mg0.95Ni0.05O (36.2 m2 g−1) < Mg0.90Ni0.10O (58.9 m2 g−1) < Mg0.85Ni0.15O (63.6 m2 g−1) < Mg0.80Ni0.20O (67.9 m2 g−1). From the Rietveld refinement, the Ni that was successfully partial substituted in the cubic crystal structure of MgO resulting in a cell contraction which ascribed the reduction of crystallite size. Increased the amount of Ni also narrowed the pore size distribution ranging between 4.17 nm and 6.23 nm, as well as increased the basicity active site up to 5741.0 μmol g−1 at medium basic strength. All the synthesised nanocatalysts were catalysed the SCWG of OPF (oil palm frond) biomass. Among them, the mesoporous Mg0.80Ni0.20O nanocatalyst exhibited the highest total gas volume of 193.5 mL g−1 with 361.7% increment of H2 yield than that of the non-catalytic reaction.
format Article
author Mastuli, Mohd Sufri
Kasim, Muhd Firdaus
Mahat, Annie Maria
Mijan, N. Asikin
S., Sivasangar
Yap, Taufiq Yun Hin
spellingShingle Mastuli, Mohd Sufri
Kasim, Muhd Firdaus
Mahat, Annie Maria
Mijan, N. Asikin
S., Sivasangar
Yap, Taufiq Yun Hin
Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production
author_facet Mastuli, Mohd Sufri
Kasim, Muhd Firdaus
Mahat, Annie Maria
Mijan, N. Asikin
S., Sivasangar
Yap, Taufiq Yun Hin
author_sort Mastuli, Mohd Sufri
title Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production
title_short Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production
title_full Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production
title_fullStr Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production
title_full_unstemmed Structural and catalytic studies of Mg1-xNixO nanomaterials for gasification of biomass in supercritical water for H2-rich syngas production
title_sort structural and catalytic studies of mg1-xnixo nanomaterials for gasification of biomass in supercritical water for h2-rich syngas production
publisher Elsevier
publishDate 2020
url http://psasir.upm.edu.my/id/eprint/85941/
https://www.sciencedirect.com/science/article/pii/S0360319920333875
_version_ 1781706765061062656
score 13.211869

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