The decomposition of H2O2 catalyzed by polymer supported transition metal complexes

Selvaraj, P.C.; Mahadevan, V.

doi:10.1016/s1381-1169(96)00422-0

Cited by 19 publications

(12 citation statements)

References 15 publications

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“…17,18 By contrast, low HMF conversion of 47% and low DFF yield of 32% were obtained by using H 2 O 2 (Table 2, Entry 6), which is presumably attributed to the quick decomposition of H 2 O 2 catalyzed by ruthenium species. 17,61 Therefore, the mild oxidant H 2 O 2 was not effective for the oxidation of HMF to DFF, which is consistent with the previous results. 18,32 In addition to Ru-PVP/CNT, various other ruthenium catalysts, made of Ru 3+ immobilized on PVP and PVI/CNT (Fig.…”

Section: Selective Aerobic Oxidation Of Hmf Over Ru-pvp/cntsupporting

confidence: 87%

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Ruthenium complex immobilized on poly(4-vinylpyridine)-functionalized carbon-nanotube for selective aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

et al. 2015

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Polymer-carbon composite material of poly(4-vinylpyridine)-functionalized carbon-nanotube (PVP/CNT) was prepared by in situ polymerization of 4-vinylpyridine monomer in the presence of CNT suspension. Raman spectra analysis confirmed the almost unchanged graphitized surfaces of CNT moiety in the 10 PVP/CNT after the covalent functionalization of pristine CNT with PVP. Catalyst made of ruthenium complex immobilized on PVP/CNT (Ru-PVP/CNT) was fully characterized by ICP-OES, TG-DTA, FT-IR, Raman, XRD, UV-vis, BET, TEM, XPS and H 2 -TPR. Moreover, Ru-PVP/CNT shows excellent catalytic performance towards the selective oxidation of biomass-based 5-hydroxymethylfurfural (HMF) to 2,5-diformylfuran (DFF) with molecular oxygen as oxidant. The reaction parameters such as the 15 reaction temperature, reaction time, solvent, catalyst amount, oxidant, and oxygen pressure were systematically investigated for this important biomass-related transformation. Under the optimal condition, a DFF yield of 94% with a full HMF conversion were obtained by using Ru-PVP/CNT in N,Ndimethylformamide (DMF) under 2.0 MPa O 2 at 120 °C.

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Section: Selective Aerobic Oxidation Of Hmf Over Ru-pvp/cntsupporting

confidence: 87%

“…MeCN and DMSO attained modest level of HMF conversion (Table 1, Entries 7-8), the poor performance of DMSO may be ascribed to the strong coordination effect of DMSO molecule with Ru 3+ center 20,60. Besides, it has been reported that DMSO tend to undergo disproportionation to yield toxic Me 2 SO 2 and Me 2 S under oxidizing conditions.…”

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confidence: 96%

Ruthenium complex immobilized on poly(4-vinylpyridine)-functionalized carbon-nanotube for selective aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

et al. 2015

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“…This value, 340.7 K, is greater than the average experimental temperature, 310.5 K. This indicates that the reactions investigated are enthalpycontrolled [19]. The existence of an isokinetic relationship supports a claim that a single mechanism operates along the series [11,25,26,35].…”

Section: Isokinetic Relationshipmentioning

confidence: 66%

“…Metal ions and metal complexes have been affixed to clays [10], polymers [11], ion-exchange resins, and molecular sieves [13 -22], and metal oxides [23 -31]. These catalysts are potentially active in decomposing H 2 O 2 , and some of them were used for the induced oxidation of some organic pollutants.…”

Section: Introductionmentioning

confidence: 99%

Activity of metal chromate and phosphate supported on ion-exchange resins toward hydrogen peroxide decomposition

Salem

Elsheikh

Younes

et al. 2000

Int. J. Chem. Kinet.

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“…The decomposition of H 2 O 2 catalysed by nitrogen containing copolymers for anchoring Ru(II) and Rh(I) species was studied recently. 11 Polymer bound mononuclear rhodium complexes can also act as catalysts in the decomposition of H 2 O 2 . 12 Among polymer±metal complexes, those of polymeric Schiff's bases are important.…”

Section: Introductionmentioning

confidence: 99%

Polystyrene-supported thiosemicarbazone-transition metal complexes: synthesis and application as heterogeneous catalysts

Chettiar

Sreekumar

1999

Polym. Int.

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Functionalized polymers are found to be highly efficient in immobilizing transition metal ions. Crosslinked polystyrene supported Schiff's base complexes of metal ions such as Fe(III), Co(II), Ni(II) and Cu(II) are very effective as heterogeneous catalysts. The catalytic activity of these metal complexes has been studied in the decomposition of H2O2 and in the epoxidation of cyclohexene and styrene. The reactions show a first order dependence on the concentration of both the substrates and the catalyst. The influence of the degree of crosslinking of the polymer support on the rate of reactions has been studied. The metal complexes show low catalytic activity at low crosslink density (2% and 5%) but 10% crosslinked resins show higher activity. A possible mechanism for the reactions is suggested. © 1999 Society of Chemical Industry

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The decomposition of H2O2 catalyzed by polymer supported transition metal complexes

Cited by 19 publications

References 15 publications

Ruthenium complex immobilized on poly(4-vinylpyridine)-functionalized carbon-nanotube for selective aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

Ruthenium complex immobilized on poly(4-vinylpyridine)-functionalized carbon-nanotube for selective aerobic oxidation of 5-hydroxymethylfurfural to 2,5-diformylfuran

Activity of metal chromate and phosphate supported on ion-exchange resins toward hydrogen peroxide decomposition

Polystyrene-supported thiosemicarbazone-transition metal complexes: synthesis and application as heterogeneous catalysts

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