Synthesis of Co/SiO2 hybrid nanocatalyst via twisted Co3Si2O5(OH)4 nanosheets for high-temperature Fischer–Tropsch reaction

Park, Kang Hyun; Kang, Shin Wook; Kim, Jeong Chul; Kwon, Jae In; Jang, Sanha; Rhim, Geun Bae; Kim, Mijong; Chun, Dong Hyun; Lee, Ho-Tae; Jung, Heon; Song, Hyunjoon; Yang, Jung Eun

doi:10.1007/s12274-016-1364-7

Cited by 24 publications

(7 citation statements)

References 42 publications

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“…For a spherical indenter on a flat sample = 1, and from (13)(14)(15) and ( 17) we obtain: E(1) ∼ = 1.5971, F(1) ∼ = 1.5277, k(1) ∼ = 1.0339, and γ = 2 × 1.5277 3 /(π 2 1.0339 2 1.5971) ∼ = 0.4232 < 0.5. Substitution of (15) in (12) in the case ε = 1 underestimates the indentation value (δ 1 /δ H = 3 0.4232/0.5 ∼ = 0.95) in comparison with the exact Hertz solution by 5%. As shown in [33], in the other cases the error is smaller.…”

Section: Discussionmentioning

confidence: 91%

“…Scrolled structures may also be formed from a thin, unstressed film to compensate the surface energy difference of the top and bottom sides of the film, [4]. Owing to their composition, structure and morphology, phyllosilicate nanoscrolls are considered as promising adsorbents and capsules [5][6][7], catalysts [8][9][10][11][12] and reinforcing components of composite materials [13][14][15][16].…”

Section: Introductionmentioning

confidence: 99%

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Young’s modulus of phyllosilicate nanoscrolls measured by the AFM and by the in-situ TEM indentation

Khalisov¹,

Лебедев²,

Poluboyarinov³

et al. 2021

Nanosystems: Phys. Chem. Math.

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Section: Discussionmentioning

confidence: 91%

Section: Introductionmentioning

confidence: 99%

Young’s modulus of phyllosilicate nanoscrolls measured by the AFM and by the in-situ TEM indentation

Khalisov¹,

Лебедев²,

Poluboyarinov³

et al. 2021

Nanosystems: Phys. Chem. Math.

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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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“…In addition to relatively high specific surface area of initial phyllosilicate, these particles are tightly bounded with the support. Ni, Cu, and Co‐based phyllosilicate materials demonstrated good catalytic activity in dry reforming of methane, [15a,20] Fischer‐Tropsch process, [6b] and hydrogenation process [21] . In perspective, initial nanoscrolls could be designed on the basis of multiple d ‐element cations, thus supporting advantages of bimetallic catalysis [20c,22] …”

Section: Introductionmentioning

confidence: 99%

Thermal behavior of Mg−Ni‐phyllosilicate nanoscrolls and performance of the resulting composites in hexene‐1 and acetone hydrogenation

et al. 2020

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Here we report on the thermal properties of Mg−Ni‐phyllosilicate nanoscrolls as a promising precursor for production of Ni/silicate composite catalysts. Spontaneous scrolling of the phyllosilicate layer originating from size difference between metal‐oxygen and silica sheets provides high surface area of the catalyst. Metal nanoparticles can be obtained directly from the matrix by H2 reduction. The phyllosilicate structure passed through a number of transformations including partial dehydroxylation with formation of sepiolite‐like phase followed by silicate or oxide crystallization. Temperature ranges of these transitions overlapped with the reduction process sophisticating the H2 consumption profiles. In particular, some amount of Ni2+ got sealed up by the sepiolite structural features, that opened a path for the tuning of Ni0 : Ni2+ ratio of the catalyst. An increase of Ni content in the system yielded a decrease in the metal nanoparticles sizes due to both high intensity of nucleation and type of residual matrix. Ni nanoparticles size distribution and specific surface area of the composite catalysts governed conversion rate of hexene‐1 and acetone hydrogenation. In the view of the turnover frequency MgNi2Si2O5(OH)4 precursors were slightly more preferable than pure Ni3Si2O5(OH)4.

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Synthesis of Co/SiO2 hybrid nanocatalyst via twisted Co3Si2O5(OH)4 nanosheets for high-temperature Fischer–Tropsch reaction

Cited by 24 publications

References 42 publications

Young’s modulus of phyllosilicate nanoscrolls measured by the AFM and by the in-situ TEM indentation

Young’s modulus of phyllosilicate nanoscrolls measured by the AFM and by the in-situ TEM indentation

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

Thermal behavior of Mg−Ni‐phyllosilicate nanoscrolls and performance of the resulting composites in hexene‐1 and acetone hydrogenation

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