Hydrogenation of alkenes over palladium and platinum metals supported on a variety of metal(IV) phosphates

Johnstone, R. A. W.; Liu, Jun-Yao; Lu, Lyan Ywan; Whittaker, D.

doi:10.1016/s1381-1169(02)00212-1

Cited by 14 publications

(11 citation statements)

References 13 publications

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“…In the literature, some metal carbonates, phosphates, and sulfates have been used as supports to load metals [2]. From the examples on the catalytic applications of metal phosphate-based catalysts cited in the Introduction section [4,5,6,7,8,9,10,11,12,13,14,15,16,17,18,19,20,21,22,23,24,25,26,27,28,29,30,31,32,33,34,35,36,37,38,39,40,41,42,43,44,45,46,47,48,49,50,51,52,53,54,55,56,57,58,59,60,61,62,63,64,65,66,67,…”

Section: Resultsmentioning

confidence: 99%

Metal Phosphate-Supported Pt Catalysts for CO Oxidation

et al. 2014

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Oxides (such as SiO2, TiO2, ZrO2, Al2O3, Fe2O3, CeO2) have often been used to prepare supported Pt catalysts for CO oxidation and other reactions, whereas metal phosphate-supported Pt catalysts for CO oxidation were rarely reported. Metal phosphates are a family of metal salts with high thermal stability and acid-base properties. Hydroxyapatite (Ca10(PO4)6(OH)2, denoted as Ca-P-O here) also has rich hydroxyls. Here we report a series of metal phosphate-supported Pt (Pt/M-P-O, M = Mg, Al, Ca, Fe, Co, Zn, La) catalysts for CO oxidation. Pt/Ca-P-O shows the highest activity. Relevant characterization was conducted using N2 adsorption-desorption, inductively coupled plasma (ICP) atomic emission spectroscopy, X-ray diffraction (XRD), transmission electron microscopy (TEM), CO2 temperature-programmed desorption (CO2-TPD), X-ray photoelectron spectroscopy (XPS), and H2 temperature-programmed reduction (H2-TPR). This work furnishes a new catalyst system for CO oxidation and other possible reactions.

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Section: Resultsmentioning

confidence: 99%

Metal Phosphate-Supported Pt Catalysts for CO Oxidation

et al. 2014

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“…The resulting catalysts (Pd/ZrPO, Pd/Ti/ZrPO, Pt/ZrPO and Pt/Ti/ZrPO) were examined for their effectiveness in the hydrogenation of oct-1-ene, and several cyclic alkenes [38]. Finally this family of solids has been used as catalyst supports.…”

Section: Zirconium Phosphatementioning

confidence: 99%

“…Palladium doped tin phosphate (Pd/SnPO) was used in the hydrogenation of oct-1-ene, 1-, 3-, 4-methylcyclohexenes and cyclododecene [38].…”

Section: Tin Phosphatementioning

confidence: 99%

“…Natural phosphate used in our work was obtained from the Khouribga region (Morocco). Prior to use this Pd/ZrPO [41,38] Ni/AlPO [11,12,13,72,73] Rh/ZrPO [42,40,41] Ni/Cu/AlPO [13] Pt/ZrPO [38] Ni/AlPO/SiO2 [12] ZrPO/TiO2 [25,35] AlPO/Al2O3 [20,21, material requires initial treatments such as crushing and washing. For use in organic synthesis, the natural phosphate is treated by techniques involving attrition, sifting, calcinations (900 °C), washing and re-calcinations.…”

Section: -2 Natural Phosphatementioning

confidence: 99%

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Phosphates: New Generation of Liquid-Phase Heterogeneous Catalysts in Organic Chemistry

Sebti¹,

Zahouily²,

Lazrek³

et al. 2008

COC

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This two part review looks at the uses of phosphate based heterogeneous catalysts for a range of synthetic organic reactions. Many different phosphates are known and have been tested as catalysts in a wide range of reaction types, either as catalysts, or in combination with other species such as zinc chloride or KF. The first section deals with the wide variety of phosphates which have been utilized in organic chemistry, while the second focuses more tightly on catalysts derived from naturally occurring phosphates. In all cases, efficient reactions can be achieved and in many reactions, significant solvent effects have been noted. Of benefit is the fact that relatively benign solvents such as lower alcohols and water are often the most effective.

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“…[3][4][5] At the contrary, a useful building block for chemical and pharmaceutical processes, 1-propanol, 6 could be obtained by hydrogenation of 2-propen-1-ol, which, in turn, can be produced by deoxydehydration of glycerol, a by-product of biodiesel production, available in large amounts and at relatively low costs. [17][18][19][20] The selectivity in the reduction of the C=C group in the presence of other functional substituents (e.g., C=O or OH), can be controlled by a variety of parameters, such as the nature of the metal catalyst, the presence of a second metal (bimetallic catalysts), the size of metal particles and the nature of the supporting materials (electron-donating or -withdrawing ligand effects, metal-support interactions and solvent effect). 16 Hydrogenations are normally performed using hydrogen gas and heterogeneous metal catalysts, such as Raney Nickel or Palladium, Rhodium or Platinum metals.…”

Section: Introductionmentioning

confidence: 99%

Hydrogenation of allyl alcohols catalyzed by aqueous palladium and platinum nanoparticles

et al. 2015

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A series of Pd and Pt nanoparticles (NPs) was prepared starting from the corresponding metal ions and lignosulphonates; NPs were tested as catalysts for allyl alcohols hydrogenation in water at room temperature and pressure. All NPs were active with sharp differences in conversions and selectivites: Pt NPs formed mainly saturated alcohols, whereas Pd NPS were more active, but less selective, forming, in addition to saturated alcohols, also isomeric unsaturated alcohols and aldehydes, both saturated and unsaturated.. Results and DiscussionWe prepared a series of twelve NPs using two metals (Pt and Pd) and six water-soluble lignins: Kraft lignin (KrLig), ammonium lignosulphonate (AmLig), calcium (CaLig) and sodium (NaLig) lignosulphonates and the corresponding lowsugar ones (CaROLig and NaROLig); lignins, in water solution and at 80 °C, acted as both reducing agents for the metal ions, i.e. H 2 PtCl 6 and PdCl 2 , and as stabilizing agents for the formed

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Hydrogenation of alkenes over palladium and platinum metals supported on a variety of metal(IV) phosphates

Cited by 14 publications

References 13 publications

Metal Phosphate-Supported Pt Catalysts for CO Oxidation

Metal Phosphate-Supported Pt Catalysts for CO Oxidation

Phosphates: New Generation of Liquid-Phase Heterogeneous Catalysts in Organic Chemistry

Hydrogenation of allyl alcohols catalyzed by aqueous palladium and platinum nanoparticles

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