Staff View: Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification

Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification

Furfuryl acetate is a significant value-added chemical with applications in various fields such as the biofuel, food and beverage, and fragrance industries. Furfuryl acetate is commonly prepared via the catalytic hydrogenation-esterification of biomass-derived furfural. This study presents the desig...

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Main Authors:	Hashim, Luqman H., Halilu, Ahmed, Umar, Yahaya Balarabe, Johan, Mohd Rafie, Aroua, Mohamed Kheireddine, Koley, Paramita, Bhargava, Suresh K.
Format:	Article
Published:	Royal Society of Chemistry 2023
Subjects:	QD Chemistry TJ Mechanical engineering and machinery
Online Access:	http://eprints.um.edu.my/39204/
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spelling	my.um.eprints.392042023-11-29T07:07:48Z http://eprints.um.edu.my/39204/ Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification Hashim, Luqman H. Halilu, Ahmed Umar, Yahaya Balarabe Johan, Mohd Rafie Aroua, Mohamed Kheireddine Koley, Paramita Bhargava, Suresh K. QD Chemistry TJ Mechanical engineering and machinery Furfuryl acetate is a significant value-added chemical with applications in various fields such as the biofuel, food and beverage, and fragrance industries. Furfuryl acetate is commonly prepared via the catalytic hydrogenation-esterification of biomass-derived furfural. This study presents the design and synthesis of highly active bifunctional catalysts that achieve 91.3% furfural conversion. Bifunctional catalysts have recently emerged as exceptional heterogeneous catalysts exhibiting high catalytic activity and product selectivity. However, limited knowledge is available about the role of lattice strain in bifunctional catalysts. Lattice strain can strongly influence catalytic activity by controlling crystal orientation, exposure of crystal facets, and atom rearrangement. Pd, Ni, and Cu-based catalysts were prepared by doping on RHSiO2-Al-Mg acidic supports to obtain Pd/RHSiO2-Al-Mg, Ni/RHSiO2-Al-Mg, and Cu/RHSiO2-Al-Mg, respectively. Lattice strains of only similar to 0.094, 0.124, and 0.357% were observed for Cu/RHSiO2-Al-Mg, Ni/RHSiO2-Al-Mg, and Pd/RHSiO2-Al-Mg catalysts, respectively. This implied that the catalysts' metal sites were 99.991, 99.870, and 99.643% perfect crystals. All synthesized catalysts were active and selective for tandem hydrogenation-esterification of furfural to furfuryl acetate. Interestingly, Cu/RHSiO2-Al-Mg exhibited the best performance with a turnover frequency of 0.89 h(-1) for furfuryl acetate, which was significantly higher than Ni/RHSiO2-Al-Mg (0.032 h(-1)) and Pd/RHSiO2-Al-Mg (0.039 h(-1)). Based on catalytic and characterization data, higher lattice strain leads to poor active site reorientation in the catalysts, which affects the rate-limiting step of H-2 splitting in the tandem furfural hydrogenation-esterification reaction. Thus, bifunctional catalysts with perfect crystal structure and low lattice strain exhibited higher catalytic activity. Royal Society of Chemistry 2023-02-06 Article PeerReviewed Hashim, Luqman H. and Halilu, Ahmed and Umar, Yahaya Balarabe and Johan, Mohd Rafie and Aroua, Mohamed Kheireddine and Koley, Paramita and Bhargava, Suresh K. (2023) Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification. Catalysis Science and Technology, 13 (3). pp. 774-787. ISSN 2044-4753, DOI https://doi.org/10.1039/d2cy01929a <https://doi.org/10.1039/d2cy01929a>. 10.1039/d2cy01929a
institution	Universiti Malaya
building	UM Library
collection	Institutional Repository
continent	Asia
country	Malaysia
content_provider	Universiti Malaya
content_source	UM Research Repository
url_provider	http://eprints.um.edu.my/
topic	QD Chemistry TJ Mechanical engineering and machinery
spellingShingle	QD Chemistry TJ Mechanical engineering and machinery Hashim, Luqman H. Halilu, Ahmed Umar, Yahaya Balarabe Johan, Mohd Rafie Aroua, Mohamed Kheireddine Koley, Paramita Bhargava, Suresh K. Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification
description	Furfuryl acetate is a significant value-added chemical with applications in various fields such as the biofuel, food and beverage, and fragrance industries. Furfuryl acetate is commonly prepared via the catalytic hydrogenation-esterification of biomass-derived furfural. This study presents the design and synthesis of highly active bifunctional catalysts that achieve 91.3% furfural conversion. Bifunctional catalysts have recently emerged as exceptional heterogeneous catalysts exhibiting high catalytic activity and product selectivity. However, limited knowledge is available about the role of lattice strain in bifunctional catalysts. Lattice strain can strongly influence catalytic activity by controlling crystal orientation, exposure of crystal facets, and atom rearrangement. Pd, Ni, and Cu-based catalysts were prepared by doping on RHSiO2-Al-Mg acidic supports to obtain Pd/RHSiO2-Al-Mg, Ni/RHSiO2-Al-Mg, and Cu/RHSiO2-Al-Mg, respectively. Lattice strains of only similar to 0.094, 0.124, and 0.357% were observed for Cu/RHSiO2-Al-Mg, Ni/RHSiO2-Al-Mg, and Pd/RHSiO2-Al-Mg catalysts, respectively. This implied that the catalysts' metal sites were 99.991, 99.870, and 99.643% perfect crystals. All synthesized catalysts were active and selective for tandem hydrogenation-esterification of furfural to furfuryl acetate. Interestingly, Cu/RHSiO2-Al-Mg exhibited the best performance with a turnover frequency of 0.89 h(-1) for furfuryl acetate, which was significantly higher than Ni/RHSiO2-Al-Mg (0.032 h(-1)) and Pd/RHSiO2-Al-Mg (0.039 h(-1)). Based on catalytic and characterization data, higher lattice strain leads to poor active site reorientation in the catalysts, which affects the rate-limiting step of H-2 splitting in the tandem furfural hydrogenation-esterification reaction. Thus, bifunctional catalysts with perfect crystal structure and low lattice strain exhibited higher catalytic activity.
format	Article
author	Hashim, Luqman H. Halilu, Ahmed Umar, Yahaya Balarabe Johan, Mohd Rafie Aroua, Mohamed Kheireddine Koley, Paramita Bhargava, Suresh K.
author_facet	Hashim, Luqman H. Halilu, Ahmed Umar, Yahaya Balarabe Johan, Mohd Rafie Aroua, Mohamed Kheireddine Koley, Paramita Bhargava, Suresh K.
author_sort	Hashim, Luqman H.
title	Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification
title_short	Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification
title_full	Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification
title_fullStr	Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification
title_full_unstemmed	Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification
title_sort	role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification
publisher	Royal Society of Chemistry
publishDate	2023
url	http://eprints.um.edu.my/39204/
_version_	1783945858423717888
score	13.211869

Role of lattice strain in bifunctional catalysts for tandem furfural hydrogenation-esterification

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