Ni nanoparticles supported on mesoporous silica (2D, 3D) architectures: highly efficient catalysts for the hydrocyclization of biomass-derived levulinic acid

Varkolu, Mohan; Velpula, Venkateshwarlu; Ganji, Saidulu; Burri, David Raju; Kamaraju, Seetha Rama Rao

doi:10.1039/c5ra10857h

Cited by 35 publications

(22 citation statements)

References 40 publications

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“…in the TPD pattern of SBA-15 material could be ascribed to the surface hydroxyl groups [31,32] while diverse patterns are appeared in the case of zirconia incorporated SBA-15 materials. The total acidity of SBA-15, ZrO 2 , 3ZS, 7ZS and 10ZS were found to be 130, 312, 177, 276, and 493 µmole g -1 respectively.…”

Section: Temperature Programmed Desorption Of Ammoniamentioning

confidence: 90%

Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst

Sankar

Varkolu

Suresh

et al. 2016

Catalysis Communications

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Section: Temperature Programmed Desorption Of Ammoniamentioning

confidence: 90%

Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst

Sankar

Varkolu

Suresh

et al. 2016

Catalysis Communications

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“…A number of catalysts used for the conversion of levulinic acid to GVL with formic acid as hydrogen source were homogeneous, leading to problems associated with the limited recyclability. Recently, we reported a continuous process for the hydrogenation of levulinic acid to GVL using supported Ni catalysts including the role of impurities such as water and formic acid , . These results seemed to bolster the idea that supported Ni‐based catalysts will work for the continuous hydrogenation of levulinic acid without an external hydrogen source.…”

Section: Introductionmentioning

confidence: 87%

Hydrogenation of Levulinic Acid Using Formic Acid as a Hydrogen Source over Ni/SiO₂ Catalysts

et al. 2017

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Several Ni/SiO 2 catalysts were developed for the hydrogenation of levulinic acid using formic acid as the hydrogen source. The catalysts were prepared by a variety of methods including impregnation, co-precipitation, deposition-precipitation, and citric acid assisted impregnation combustion. The morphological properties were investigated by XRD, N 2 sorption, HRTEM, and H 2 pulse chemisorption measurements. XRD patterns of the calcined material revealed the presence of NiO particles, while calcination in an inert atmosphere produced Ni particles through in situ reduction of NiO. The reaction proceeded without external H 2 flow using formic acid as hydrogen source. The Ni/SiO 2 catalyst prepared by the citric acid assisted method and calcined in inert gas flow was the most efficient for the hydrogenation of levulinic acid without external H 2 flow. The high catalytic performance was attributed to the high dispersion of cheap and earth-abundant Ni nanoparticles and optimal porosity.

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“…However, the nature of nanoparticles with large surface area‐to‐volume ratio often has a tendency to the aggregation of particles, resulting in their catalytic performance with uncontrollable and undesirable effects. To alleviate the aggregation problem, several strategies for the preparation of well dispersed Ni NPs have been applied . In particular, various types of siliceous materials, such as mesoporous silica MCM‐41, SBA‐15, and KIT‐6, and SiO 2 hollow spheres, have been extensively utilized as supports for fabrication of highly dispersed Ni NPs .…”

Section: Methodsmentioning

confidence: 99%

Ni Nanoparticles Supported on Cage‐Type Mesoporous Silica for CO₂ Hydrogenation with High CH₄ Selectivity

Budi

Chen

et al. 2016

ChemSusChem

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Ni nanoparticles (around 4 nm diameter) were successfully supported on cage-type mesoporous silica SBA-16 (denoted as Ni@SBA-16) via wet impregnation at pH 9, followed by the calcination-reduction process. The Ni@SBA-16 catalyst with a very high Ni loading amount (22.9 wt %) exhibited exceptionally high CH4 selectivity for CO2 hydrogenation. At a nearly identical loading amount, the Ni@SBA-16 catalysts with smaller particle size of Ni NPs surprisingly exhibited a higher catalytic activity of CO2 hydrogenation and also led to a higher selectivity on CH4 formation than the Ni@SiO2 catalysts. This enhanced activity of the Ni@SBA-16 catalyst is suggested to be an accumulative result of the advantageous structural properties of the support SBA-16 and the well confined Ni NPs within the support; both induced a favorable reaction pathway for high selectivity of CH4 in CO2 hydrogenation.

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Ni nanoparticles supported on mesoporous silica (2D, 3D) architectures: highly efficient catalysts for the hydrocyclization of biomass-derived levulinic acid

Abstract: Ni nanoparticles supported on various mesoporous silicas with 2D (COK-12) and 3D architectures (KIT-6 and SBA-16) exhibited superior catalytic performance in the vapor-phase hydrocyclization of biomass-derived levulinic acid at atmospheric pressure.

Cited by 35 publications

References 40 publications

Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst

Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst

Hydrogenation of Levulinic Acid Using Formic Acid as a Hydrogen Source over Ni/SiO₂ Catalysts

Ni Nanoparticles Supported on Cage‐Type Mesoporous Silica for CO₂ Hydrogenation with High CH₄ Selectivity

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Ni nanoparticles supported on mesoporous silica (2D, 3D) architectures: highly efficient catalysts for the hydrocyclization of biomass-derived levulinic acid

Abstract: Ni nanoparticles supported on various mesoporous silicas with 2D (COK-12) and 3D architectures (KIT-6 and SBA-16) exhibited superior catalytic performance in the vapor-phase hydrocyclization of biomass-derived levulinic acid at atmospheric pressure.

Cited by 35 publications

References 40 publications

Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst

Vapor phase esterification of levulinic acid over ZrO2/SBA-15 catalyst

Hydrogenation of Levulinic Acid Using Formic Acid as a Hydrogen Source over Ni/SiO2 Catalysts

Ni Nanoparticles Supported on Cage‐Type Mesoporous Silica for CO2 Hydrogenation with High CH4 Selectivity

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Product

Resources

About

Hydrogenation of Levulinic Acid Using Formic Acid as a Hydrogen Source over Ni/SiO₂ Catalysts

Ni Nanoparticles Supported on Cage‐Type Mesoporous Silica for CO₂ Hydrogenation with High CH₄ Selectivity