Effect of phosphorus on the activity of Cu/SiO 2 catalysts in the hydrogenolysis of glycerol

Sepúlveda, Catherine; Delgado, L.; Garcı́a, R.; Meléndrez, Manuel; Fierro, J.L.G.; Ghampson, I. Tyrone; Escalona, N.

doi:10.1016/j.cattod.2016.06.004

Cited by 19 publications

(18 citation statements)

References 40 publications

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“…A quantity of about 80 mg of catalyst was introduced into the fixed bed tubular reactor. The N 2 O consumption was calculated from a two-step analysis consisting of (i) XPS measurements were performed using a VG Escalab 200R electron spectrometer equipped with a hemispherical electron analyzer and Mg Kα (1253.6 eV) X-ray source, according to procedure detailed in our previous publication [14].…”

Section: Characterization Of Supports and Catalystsmentioning

confidence: 99%

“…Hydrogenolysis of glycerol was performed according to detailed experimental conditions reported in our previous work [14]. The condition of the reaction included an aqueous glycerol solution (80 wt % or 10 mol L −1 ), a 0.5 g of pre-reduced catalyst, a temperature of 220 • C and a total pressure of 5 MPa of H 2 .…”

Section: Catalytic Testsmentioning

confidence: 99%

“…Copper is known for its poor hydrogenolytic activity towards C-C bond but it is an efficient catalyst for C-O bond hydrogenation and dehydrogenation reactions. In fact, different publications using Cu as a metallic active phase on different supports (ZrO 2 , Al 2 O 3 , ZSM-5, ZnO, SiO 2 ) have shown 1,2-PDO as a principal product [10][11][12][13][14].…”

Section: Introductionmentioning

confidence: 99%

“…Although Cu has been used as an active phase on several support with different physicochemical properties [10][11][12][13][14], its use on activated carbon has only been as a promoter of Pt for glycerol oxidation [29]. Therefore, the present work investigates the effect of thermal treatment of activated carbon as supports for copper catalysts for glycerol conversion.…”

Section: Introductionmentioning

confidence: 99%

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Thermal Modification Effect on Supported Cu-Based Activated Carbon Catalyst in Hydrogenolysis of Glycerol

et al. 2020

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Glycerol hydrogenolysis to 1,2-propanediol (1,2-PDO) was performed over activated carbon supported copper-based catalysts. The catalysts were prepared by impregnation using a pristine carbon support and thermally-treated carbon supports (450, 600, 750, and 1000 °C). The final hydrogen adsorption capacity, porous structure, and total acidity of the catalysts were found to be important descriptors to understand catalytic performance. Oxygen surface groups on the support controlled copper dispersion by modifying acidic and adsorption properties. The amount of oxygen species of thermally modified carbon supports was also found to be a function of its specific surface area. Carbon supports with high specific surface areas contained large amount of oxygen surface species, inducing homogeneous distribution of Cu species on the carbon support during impregnation. The oxygen surface groups likely acted as anchorage centers, whereby the more stable oxygen surface groups after the reduction treatment produced an increase in the interaction of the copper species with the carbon support, and determined catalytic performances.

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Section: Characterization Of Supports and Catalystsmentioning

confidence: 99%

Section: Catalytic Testsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Thermal Modification Effect on Supported Cu-Based Activated Carbon Catalyst in Hydrogenolysis of Glycerol

et al. 2020

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“…Undoubtedly, the acidity of the catalysts is fundamental in the glycerol hydrogenolysis [13]. To change the activity and selectivity in glycerol hydrogenolysis, the many routes to modify the acidic properties of catalysts always are the hot spot.…”

Section: Introductionmentioning

confidence: 99%

Hydrogenolysis of Glycerol on the ZrO2-TiO2 Supported Pt-WOx Catalyst

Hong

Huang

et al. 2020

Catalysts

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A series of Pt/WOx-ZrO2-TiO2 catalysts with different Ti/Zr molar ratios was prepared by an evaporation induced self-assembly method, and used to efficient hydrogenolysis of glycerol to 1-PO and 1,3-PDO. BET, XRD, Raman, TEM, XPS and Py-IR were employed to characterize the physicochemical properties of the catalysts. The structural and acidic properties of the catalysts were affected by the Ti/Zr ratio of the support ZrO2-TiO2. Two new crystalline phases of ZrTiO4 and Ti2ZrO6 and the amount of acid sites were detected in the Pt/WOx-ZrO2-TiO2 catalysts. 1-PO is dominant in all products of glycerol hydrogenolysis over the supported Pt-WOx catalysts, which is attributed to more Lewis acid sites on the catalyst surface. The Pt/WOx-ZrO2-TiO2 catalyst with a Ti/Zr ratio of 7/3 showed the highest 1,3-PDO yield (25.3%) and 1-PO yield (42.3%), due to its more acid sites including Brønsted and Lewis, and higher concentration of surface Pt0.

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Dual Sulfonic Acid Functionalized Heteropolyacid-Based Ionic Liquids for Esterification of Glycerol Toward Triacetylglycerol

Guang

Zhang

et al. 2022

Catal Lett

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Effect of phosphorus on the activity of Cu/SiO 2 catalysts in the hydrogenolysis of glycerol

Cited by 19 publications

References 40 publications

Thermal Modification Effect on Supported Cu-Based Activated Carbon Catalyst in Hydrogenolysis of Glycerol

Thermal Modification Effect on Supported Cu-Based Activated Carbon Catalyst in Hydrogenolysis of Glycerol

Hydrogenolysis of Glycerol on the ZrO2-TiO2 Supported Pt-WOx Catalyst

Dual Sulfonic Acid Functionalized Heteropolyacid-Based Ionic Liquids for Esterification of Glycerol Toward Triacetylglycerol

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