Heavier alcohols synthesis on cobalt phyllosilicate catalysts

Loaiza-Gil, Alfonso; Arenas, Jennifer; Villarroel, Marlín; Imbert, Freddy; Castillo, Héctor Del; Fontal, Bernardo

doi:10.1016/j.molcata.2004.09.071

Cited by 31 publications

(16 citation statements)

References 11 publications

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“…Burattin et al . first suggested a competitive mechanism for the formation of Ni‐phyllosilicate (Ni−PS) governed by the kinetics of silica dissolution which depend on the silica specific surface area, the nature of the pH initiator and the reaction time (for deposition‐precipitation) . This mechanism highlighted two reactions pathways which can take place simultaneously: a) hetero‐condensation/polymerization, favoring the formation of a 1 : 1 (TO) Ni−PS with general formula Si 2 Ni 3 O 5 (OH) 4 ; and b) olation/polymerization, leading to the precipitation of Ni(OH) 2 .…”

Section: Introductionmentioning

confidence: 99%

Phyllosilicate‐derived Nickel‐cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N‐heteroarenes

et al. 2020

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The development of cost-effective, noble metal-free catalytic systems for the hydrogenation of unsaturated aliphatic, aromatic, and heterocyclic compounds is fundamental for future valorization of general feedstock. With this aim, we report here the preparation of highly dispersed bimetallic Ni/Co nanoparticles (NPs), by a one-pot deposition-precipitation of Ni and Co phases onto mesoporous SBA-15 silica. By adjusting the chemical composition in the starting mixture, three supported catalysts with different Ni to Co weight ratios were obtained, which were further subjected to treatments under reducing conditions at high temperatures. Characterization of the resulting solids evidenced a homogenous distribution of Ni and Co elements forming the NPs, the best results being obtained for Ni/Co-2 : 2 samples, for which 50 wt.% Ni-50 wt.% Co NPs are found located on the surface of the residual phyllosilicate. Ni/Co-2 : 2, presenting the best performances for the hydrogenation of 2-methyl-quinoline, was further evaluated in the catalytic hydrogenation of selected imines, oximes and Nheteroarenes. Due to the high dispersion of bimetallic NiÀ Co NPs, excellent properties (activity and selectivity) in the conversion of the selected substrates are reported.

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Section: Introductionmentioning

confidence: 99%

Phyllosilicate‐derived Nickel‐cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N‐heteroarenes

et al. 2020

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“…hydroxide ion and the oxygen in the tetrahedron complete the octahedral coordination of the interlayer cation. 25 From the HRTEM images (Fig. 1), a characteristic "fibrous" microstructure was observed, confirming the presence of phyllosilicate on the CoSi-PS precursor.…”

Section: Dalton Transactions Papermentioning

confidence: 55%

“…Compared with the hydrothermal method, the ammonia vaporization method is simple and easy to control. 24 Co/SiO 2 , 25,26 Cu/SiO 2 , [27][28][29][30][31][32][33][34] Ni/SiO 2 [35][36][37][38][39][40] or Ni-Cu/SiO 42 So far, a Co catalyst derived from cobalt phyllosilicate has not been explored for catalyzing the hydrogenolysis of HMF.…”

Section: Introductionmentioning

confidence: 99%

Selective hydrogenolysis of 5-hydroxymethylfurfural to 2,5-dimethylfuran over cobalt nanoparticle inlaid cobalt phyllosilicate

Sun

Gao

et al. 2022

Dalton Trans.

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“…Structural diversity, compatibility with various transition metals, high surface area, and finely dispersed metallic cations makes phyllosilicates attractive in numerous reactions, such as Fischer-Tropsch [43], esterification [44], cellulose conversion to glucose [45], oxidation of water [46,47], oxidation of CO [48][49][50][51][52], CO or CO2 reforming [34,[53][54][55][56][57][58][59][60][61], hydrogen generation from methanol steam reforming [62][63][64][65][66], and syntheses of valuable alcohols from hydrogenation of CO [67][68][69], CO2 [53,[70][71][72], and hydrogenolysis of esters [73][74][75][76][77][78][79][80][81][82][83][84][85][86]...…”

Section: Introductionmentioning

confidence: 99%

Copper Phyllosilicates-Derived Catalysts in the Production of Alcohols from Hydrogenation of Carboxylates, Carboxylic Acids, Carbonates, Formyls, and CO2: A Review

Lin

2021

Catalysts

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Copper phyllosilicates-derived catalysts (CuPS-cats) have been intensively explored in the past two decades due to their promising activity in carbonyls hydrogenation. However, CuPS-cats have not been completely reviewed. This paper focuses on the aspects concerning CuPS-cats from synthesis methods, effects of preparation conditions, and dopant to catalytic applications of CuPS-cats. The applications of CuPS-cats include the hydrogenation of carboxylates, carboxylic acids, carbonates, formyls, and CO2 to their respective alcohols. Besides, important factors such as the Cu dispersion, Cu+ and Cu0 surface area, particles size, interaction between Cu and supports and dopants, morphologies, and spatial effect on catalytic performance of CuPS-cats are discussed. The deactivation and remedial actions to improve the stability of CuPS-cats are summarized. It ends up with the challenges and prospective by using this type of catalyst.

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Heavier alcohols synthesis on cobalt phyllosilicate catalysts

Cited by 31 publications

References 11 publications

Phyllosilicate‐derived Nickel‐cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N‐heteroarenes

Phyllosilicate‐derived Nickel‐cobalt Bimetallic Nanoparticles for the Catalytic Hydrogenation of Imines, Oximes and N‐heteroarenes

Selective hydrogenolysis of 5-hydroxymethylfurfural to 2,5-dimethylfuran over cobalt nanoparticle inlaid cobalt phyllosilicate

Copper Phyllosilicates-Derived Catalysts in the Production of Alcohols from Hydrogenation of Carboxylates, Carboxylic Acids, Carbonates, Formyls, and CO2: A Review

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