Promising Ni/Al-SBA-15 catalysts for hydrodeoxygenation of dibenzofuran into fuel grade hydrocarbons: synergetic effect of Ni and Al-SBA-15 support

Gbadamasi, Sharafadeen; Ali, Tammar Hussein; Voon, Lee Hwei; Atta, A.Y.; Sudarsanam, Putla; Bhargava, Suresh K.; Hamid, Sharifah Bee Abd

doi:10.1039/c5ra27526a

Cited by 28 publications

(23 citation statements)

References 43 publications

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“…However, the contribution of Ni species more strongly interacting with the support observed for Zr-modified Ni/AlSBA-15 was considerably higher than that noted for the unmodified mesoporous catalyst. This was consistent with previous studies, which demonstrated that the presence of zirconium enhanced the strength of the interaction between the support and nickel clusters. ,, …”

Section: Results and Discussionsupporting

confidence: 93%

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Impact of Zr Incorporation into the Ni/AlSBA-15 Catalyst on Its Activity in Cellulose Conversion to Hydrogen-Rich Gas

et al. 2017

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This work focused on the investigation of the effect of zirconium incorporation into the structure of the Ni/AlSBA-15 catalyst on its performance in high-temperature conversion of cellulose (the main component of lignocellulosic feedstock) to hydrogen-rich gas. The modified supports were prepared by direct incorporation of zirconium and impregnation methods. The obtained results exhibited that introduction of zirconium into the structure of Ni/AlSBA-15 allowed for a considerable increase in the amount of hydrogen produced in the studied process in comparison to unmodified Ni/AlSBA-15 material. The characterization of physicochemical properties of the investigated materials (X-ray diffraction, scanning electron microscopy–energy-dispersive X-ray spectroscopy, time-of-flight secondary ion mass spectrometry, temperature-programmed reduction, temperature-programmed desorption of ammonia, etc.) showed that the preparation of mesoporous Ni/ZrAlSBA-15 with the use of the direct synthesis method led to obtaining the catalyst with a higher surface area and pore volume and smaller crystallites of an active phase in comparison to the material containing nickel supported on ZrAlSBA-15 with zirconium introduced by impregnation. Despite that the mesoporous catalyst prepared by impregnation possessed higher acidity, its structure underwent partial collapse during the preparation procedure.

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Section: Results and Discussionsupporting

confidence: 93%

“…In this case, two reduction peaks with the maxima at 300 and 570 °C were noticed. The first of them can be ascribed to nickel oxide with the limited contact with the support, while the second can be attributed to NiO strongly interacting with the mesoporous material, as previously reported in the literature. ,− …”

Section: Results and Discussionsupporting

confidence: 68%

Impact of Zr Incorporation into the Ni/AlSBA-15 Catalyst on Its Activity in Cellulose Conversion to Hydrogen-Rich Gas

et al. 2017

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“…Catalytic hydrodeoxygenation (HDO) of lignin oil is a promising strategy to reduce the amount of oxygen, resulting into a high-quality bio-oil that can be efficiently upgraded to compatible transportation fuels. [189][190][191][192] Co-Pyrolysis of cellulose and cobalt nitrate under NH 3 atmosphere was performed to prepare novel magnetic N-doped carbon supported cobalt nitride catalysts (CoN x @NC). 193 Their catalytic efficiency for HDO of lignin-derived phenols was subsequently tested.…”

Section: Biomass-derived Carbon Catalystsmentioning

confidence: 99%

Functionalised heterogeneous catalysts for sustainable biomass valorisation

et al. 2018

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Efficient transformation of biomass to value-added chemicals and high-energy density fuels is pivotal for a more sustainable economy and carbon-neutral society. In this framework, developing potential cascade chemical processes using functionalised heterogeneous catalysts is essential because of their versatile roles towards viable biomass valorisation. Advances in materials science and catalysis have provided several innovative strategies for the design of new appealing catalytic materials with well-defined structures and special characteristics. Promising catalytic materials that have paved the way for exciting scientific breakthroughs in biomass upgrading are carbon materials, metal-organic frameworks, solid phase ionic liquids, and magnetic iron oxides. These fascinating catalysts offer unique possibilities to accommodate adequate amounts of acid-base and redox functional species, hence enabling various biomass conversion reactions in a one-pot way. This review therefore aims to provide a comprehensive account of the most significant advances in the development of functionalised heterogeneous catalysts for efficient biomass upgrading. In addition, this review highlights important progress ensued in tailoring the immobilisation of desirable functional groups on particular sites of the above-listed materials, while critically discussing the role of consequent properties on cascade reactions as well as on other vital processes within the bio-refinery. Current challenges and future opportunities towards a rational design of novel functionalised heterogeneous catalysts for sustainable biomass valorisation are also emphasized.

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“…In our previous work, the hydrodeoxygenation products of DBF were obtained and the hydrogenation pathway (HYD) was discussed in detail. Considerable research has been focused on the hydrodeoxygenation of DBF to fuels via the HYD pathway over acid catalysts. − Only a few studies of the DBF hydrogenolysis to OPP have been reported in the literature, in which the selectivity for OPP reached 73% and the yield was just 16.8% over carbon supported Pd catalyst. As a consequence, C–O bond hydrogenolysis has been extensively studied over the past decade .…”

Section: Introductionmentioning

confidence: 99%

“…As a consequence, C–O bond hydrogenolysis has been extensively studied over the past decade . Various metals have been used as the active components, such as Ru, Pt, − , Pd, Rh, Ni, ,− Cu, , Fe, Au, W, and Co, and important progress has been made toward the cleavage of the C–O bond. In particular, the noble metals, Pt, Pd, Ru, and Rh, have attracted considerable attention because of their high hydrogenolysis activity.…”

Section: Introductionmentioning

confidence: 99%

Selective Hydrogenolysis of Dibenzofuran over Highly Efficient Pt/MgO Catalysts to o-Phenylphenol

Zhang

Wang

et al. 2018

Org. Process Res. Dev.

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Direct selective hydrogenolysis of dibenzofuran (DBF) derived from coal and shale oil to a value-added chemical, ortho-phenylphenol (OPP), with high selectivity (80%) and yield (48%) has been achieved over Pt/MgO at 400 °C and 1.0 MPa by controlling the C–O bond cleavage as well as minimizing the extent of hydrogenation of aromatic rings. Meanwhile, Pt/SiO2, Pt/Al2O3, and Pt/MgO/Al2O3 catalysts were used for the DBF hydrogenolysis and showed lower selectivity for OPP. The influence of reaction parameters has been studied to unveil the optimal reaction conditions. And the phenomenon of OPP dehydrogenation is found over various catalysts for the hydrogenation reaction of OPP. Extensive reactions and catalyst characterizations demonstrated that the OPP selectivity and the dehydrogenation of OPP to DBF follows the order of supports basicity: MgO-900 > MgO > SiO2 > MgO/Al2O3 > Al2O3, which shows that the acid–base properties of supports impact the adsorption and desorption behaviors of DBF and OPP, and results in the disparity of OPP selectivity and the dehydrogenation of OPP. Finally, a plausible reaction pathway and mechanistic understanding are proposed.

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Promising Ni/Al-SBA-15 catalysts for hydrodeoxygenation of dibenzofuran into fuel grade hydrocarbons: synergetic effect of Ni and Al-SBA-15 support

Abstract: First time application of Al-SBA-15 supported Ni catalysts for hydrodeoxygenation of dibenzofuran to hydrocarbons was investigated in this study.

Cited by 28 publications

References 43 publications

Impact of Zr Incorporation into the Ni/AlSBA-15 Catalyst on Its Activity in Cellulose Conversion to Hydrogen-Rich Gas

Impact of Zr Incorporation into the Ni/AlSBA-15 Catalyst on Its Activity in Cellulose Conversion to Hydrogen-Rich Gas

Functionalised heterogeneous catalysts for sustainable biomass valorisation

Selective Hydrogenolysis of Dibenzofuran over Highly Efficient Pt/MgO Catalysts to o-Phenylphenol

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