Fabrication of ZnO nanoparticles confined in the channels of mesoporous carbon

Suryavanshi, Ulka; Iijima, Takashi; Hayashi, Akari; Hayashi, Yasuhiro; Tanemura, Masaki

doi:10.1016/j.cej.2011.10.087

Cited by 32 publications

(21 citation statements)

References 33 publications

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“…By applying a higher concentration of Cu, the pore diameter was shifted to lower values which were ascribed to the deposition of the metal oxide nanoparticles on the inner walls of the mesopores . However, with higher metal oxide concentration, the pore size distribution was still in the mesopore range, which confirmed that the mesopore structure had not collapsed after loading the metal oxide nanoparticles onto the host structure . As was expected, the textural properties dropped after the post‐acid treatment.…”

Section: Resultsmentioning

confidence: 99%

“…The residue amount of the catalyst was 20 % which was close to the real stoichiometric value of the metal oxides. It was revealed that the dispersed nanoparticles inside the mesopores were able to preserve the framework .…”

Section: Resultsmentioning

confidence: 99%

“…It was observed that the microspheres could not be formed but only irregular nanoparticles with hexagonal structure appeared (Fig. a), pointing to the significant role of D ‐glucose as a template in the formation of microspheres .…”

Section: Resultsmentioning

confidence: 99%

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Esterification of Palm Fatty Acid Distillate Using a Sulfonated Mesoporous CuO‐ZnO Mixed Metal Oxide Catalyst

et al. 2017

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A nanocrystalline mesoporous CuO‐ZnO hollow sphere was successfully fabricated by the hydrothermal method. The nanocomposite was formed in the presence of polyethylene glycol as a dispersant and D‐glucose as a template. The mesoporous CuO‐ZnO catalyst was further functionalized with benzenesulfonic acid to catalyze the esterification of palm fatty acid distillate (PFAD). The physicochemical, textural, structural, and thermal properties of the mesoporous CuO‐ZnO mixed‐oxide catalysts were evaluated. The modified mesoporous catalyst possessed unique textural properties. With a Cu/Zn atomic ratio of 1.0 the best catalytic activity through PFAD esterification was achieved. The optimum reaction conditions in terms of methanol/PFAD molar ratio, catalyst concentration, reaction temperature, and reaction time were determined.

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Section: Resultsmentioning

confidence: 99%

Section: Resultsmentioning

confidence: 99%

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Esterification of Palm Fatty Acid Distillate Using a Sulfonated Mesoporous CuO‐ZnO Mixed Metal Oxide Catalyst

et al. 2017

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“…While for CSF 30 sample, I isotherms was even more significant. Type H 2 hysteresis loops at higher pressures (0.4-1.0 P/P 0 ) corresponded to pore filling by capillary condensation (Suryavanshi et al, 2012), which is associated with capillary condensation occurring in the mesopores (Huang and Doong, 2012). The shape and area of the hysteresis loops changed markedly with increasing reaction time, indicating that reaction time has a direct influence on pore structure generation.…”

Section: Tem and Sem Analysismentioning

confidence: 96%

Effect of reaction time on structure of ordered mesoporous carbon microspheres prepared from carboxymethyl cellulose by soft-template method

et al. 2015

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“…Nanoscale zinc oxide is interesting for application in many UV optoelectronic devices (new effective laser media operating at room temperature, optical sensors, and crystal phosphors [1][2][3][4]) because of their wide band gap E g = 3.37 eV and high free-exciton binding energy (60 meV).…”

Section: Introductionmentioning

confidence: 99%

Specific features of the structure of ZnO nanocrystals grown in pores of Y2O3 spherical matrices

et al. 2015

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A two-phase spherical Y 2 O 3 /ZnO nanocomposite particle with a diameter variable in the series of 70, 130, 180, 250, and 400 nm (variance ≤15%) has been obtained; the first phase is a mesoporous Y 2 O 3 matrix, while the second is a crystalline ZnО phase located in the size-limited pore volume. Specific features of ZnO nanocrystals formed on the high-curvature surface of pores with excess surface energy are studied. It is shown that the thermally activated coarsening of ZnO crystallites accompanied by an increase in the nanophase structural quality occurs during Y 2 O 3 /ZnO annealing in the temperature range t = 600-800°C. It is established that the wurtzite lattice is strained on the surfaces of small Y 2 O 3 pores.

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Fabrication of ZnO nanoparticles confined in the channels of mesoporous carbon

Cited by 32 publications

References 33 publications

Esterification of Palm Fatty Acid Distillate Using a Sulfonated Mesoporous CuO‐ZnO Mixed Metal Oxide Catalyst

Esterification of Palm Fatty Acid Distillate Using a Sulfonated Mesoporous CuO‐ZnO Mixed Metal Oxide Catalyst

Effect of reaction time on structure of ordered mesoporous carbon microspheres prepared from carboxymethyl cellulose by soft-template method

Specific features of the structure of ZnO nanocrystals grown in pores of Y2O3 spherical matrices

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