Catalysis of terpene rearrangements by zirconium phosphates and zirconium organo-substituted phosphonates

Costa, Magda; Johnstone, R. A. W.; Whittaker, D.

doi:10.1016/s1381-1169(97)00135-0

Cited by 16 publications

(3 citation statements)

References 14 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%

“…In a classic book written by Tanabe, Misono, Ono, and Hattori, metal phosphates are highlighted as a new family of solid acids showing some promising applications in heterogeneous catalysis [3]. Metal phosphates can be used as catalysts directly, for instance, in the partial oxidation of propane [4], oxidative dehydrogenation of isobutane to isobutene [5,6,7], oxidative dehydrogenation of ethylbenzene to styrene [8], dehydration of cyclohexanol and 1-methylcyclohexanol [9,10,11], retro-Prins reaction [12,13], terpene rearrangements [14], alkylation of anisole with alcohols [15], dehydrofluorination of CF 3 CH 3 into CF 2 CH 2 [16,17], hydrolysis of CCl 2 F 2 [18,19,20], decomposition of CF 4 [21,22], decomposition of CH 2 FCF 3 [23], decomposition of chlorobenzene [24], decomposition of SF 6 [25,26], and hydrolysis of NF 3 [27]. …”

Section: Introductionmentioning

confidence: 99%

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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%

Section: Introductionmentioning

confidence: 99%

Metal Phosphate-Supported Pt Catalysts for CO Oxidation

et al. 2014

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“…They are characterized by polymeric metal(IV) phosphates with layered structures, each layer consisting in a plane of tetravalent metal atoms sandwiched between planes of different hydrogen phosphate/phosphate species [134, 135], which contain both Br⊘nsted and Lewis acid sites [136, 137], the nature and concentration of which result is strictly related to the phase structures and thermal treatment history. In particular, zirconium and titanium phosphates belonging to this class of compounds have been used as acid catalysts for the dehydration of alcohols [138, 139], isomerization of olefins [140–143] and the rearrangement of terpenes [144]. …”

Section: Solid Catalysts For Biomass Conversion Into Value-added Chemmentioning

confidence: 99%

Recent progress in the development of solid catalysts for biomass conversion into high value-added chemicals

Hara

Nakajima

Kamata

2015

Science and Technology of Advanced Materials

116

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In recent decades, the substitution of non-renewable fossil resources by renewable biomass as a sustainable feedstock has been extensively investigated for the manufacture of high value-added products such as biofuels, commodity chemicals, and new bio-based materials such as bioplastics. Numerous solid catalyst systems for the effective conversion of biomass feedstocks into value-added chemicals and fuels have been developed. Solid catalysts are classified into four main groups with respect to their structures and substrate activation properties: (a) micro- and mesoporous materials, (b) metal oxides, (c) supported metal catalysts, and (d) sulfonated polymers. This review article focuses on the activation of substrates and/or reagents on the basis of groups (a)–(d), and the corresponding reaction mechanisms. In addition, recent progress in chemocatalytic processes for the production of five industrially important products (5-hydroxymethylfurfural, lactic acid, glyceraldehyde, 1,3-dihydroxyacetone, and furan-2,5-dicarboxylic acid) as bio-based plastic monomers and their intermediates is comprehensively summarized.

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Direct Synthesis of 1,6‐Hexanediol from HMF over a Heterogeneous Pd/ZrP Catalyst using Formic Acid as Hydrogen Source

et al. 2013

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A new approach is developed for hydrogenolytic ring opening of biobased 5-hydroxymethylfurfural (HMF), dehydration product of hexoses, towards 1,6-hexanediol (HDO) under atmospheric pressure. The highest yield of HDO, 43%, is achieved over reusable Pd/zirconium phosphate (ZrP) catalyst at 413 K in the presence of formic acid as hydrogen source. In comparison with various Brønsted and/or Lewis acidic supports, the specific Brønsted acidity on ZrP support effectively accelerated the cleavage of C-O bond in a furan ring.

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Catalysis of terpene rearrangements by zirconium phosphates and zirconium organo-substituted phosphonates

Cited by 16 publications

References 14 publications

Metal Phosphate-Supported Pt Catalysts for CO Oxidation

Metal Phosphate-Supported Pt Catalysts for CO Oxidation

Recent progress in the development of solid catalysts for biomass conversion into high value-added chemicals

Direct Synthesis of 1,6‐Hexanediol from HMF over a Heterogeneous Pd/ZrP Catalyst using Formic Acid as Hydrogen Source

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