نتایج جستجو برای: kit 6 mesoporous magnetite nanocomposite

تعداد نتایج: 1008201  

2012
Laifa Shen Guozhong Cao

A mesoporous Li 4 Ti 5 O 12 /C nanocomposite is synthesized by a nanocasting technique using the porous carbon material CMK-3 as a hard template. Modifi ed CMK-3 template is impregnated with Li 4 Ti 5 O 12 precursor, followed by heat treatment at 750 ° C for 6 h under N 2 . Li 4 Ti 5 O 12 nanocrystals of up to several tens of nanometers are successfully synthesized in micrometer-sized porous ca...

2016
Rurik Farias-Mancilla José T. Elizalde-Galindo Enrique Vigueras-Santiago Claudia A. Hernández-Escobar Alejandro Vega-Rios E. Armando Zaragoza-Contreras

A conducting-electroactive polyaniline/magnetite (PAni/Fe304) nanocomposite was synthesized using anilinium dodecylbenzene sulfonate (S1) as a reactive surfactant. First, S1 allowed magnetite dispersion in the aqueous phase and second, S1 performed as the monomer of polyaniline emeraldine base salt. Electron microscopy suggested core-shell morphology based on S1 amphiphilic character; that is, ...

Journal: :Dalton transactions 2012
John Mondal Tapas Sen Asim Bhaumik

A magnetic nanoparticle conjugated mesoporous nanocatalyst (Fe(3)O(4)@mesoporous SBA-15) with a high surface area has been synthesized by chemical conjugation of magnetite (Fe(3)O(4)) nanoparticles with functionalized mesoporous SBA-15. Functionalized mesoporous SBA-15 containing surface carboxyl and amino groups was synthesized via the thiol-ene click reaction of cysteine hydrochloride and vin...

Journal: :Nanoscale 2015
Mingying Qiu Sihui Zhan Hongbing Yu Dandan Zhu Shengqiang Wang

Ordered mesoporous MnCo2O4 nanomaterials were successfully prepared through the nanocasting route using SBA-15 and KIT-6 as hard templates. These mesoporous nanomaterials were characterized using XRD, BET, TEM, NH3-TPD, H2-TPR, NO-TPD, XPS and DRIFT. The low temperature selective catalytic reduction (SCR) activity of NO with NH3 was investigated, which revealed that 3D-MnCo2O4 using KIT-6 as a ...

Journal: :Nanoscale 2015
Cuifeng Tian Jiang Li Chunsheng Ma Ping Wang Xiaohong Sun Jixiang Fang

Surface-enhanced Raman scattering (SERS) substrates with high density and uniformity of nanogaps are proven to enhance the reproducibility and sensitivity of the Raman signal. Up to now, the syntheses of a highly ordered gold or silver superstructure with a controllable nanoparticle size and a well-defined particle gap have been quite limited. Here, we reported an ordered mesoporous silver supe...

2016
Shijiao Sun Xiangyu Zhao Meng Yang Linlin Wu Zhaoyin Wen Xiaodong Shen

Highly ordered mesoporous Co3O4 materials have been prepared via a nanocasting route with three-dimensional KIT-6 and two-dimensional SBA-15 ordered mesoporous silicas as templates and Co(NO3)2 · 6H2O as precursor. Through changing the hydrothermal treating temperature of the silica template, ordered mesoporous Co3O4 materials with hierarchical structures have been developed. The larger pores a...

Journal: :Molecules 2018
Anand Ramanathan Bala Subramaniam

A relatively new class of three-dimensional ordered mesoporous silicates, KIT-6, incorporated with Earth-abundant metals such as Zr, Nb, and W (termed as M-KIT-6), show remarkable tunability of acidity and metal dispersion depending on the metal content, type, and synthetic method. The metal-incorporation is carried out using one-pot synthesis procedures that are amenable to easy scale-up. By s...

Journal: :Physical chemistry chemical physics : PCCP 2008
Dmitry A Gorin Sergey A Portnov Olga A Inozemtseva Zofia Luklinska Alexey M Yashchenok Anton M Pavlov Andre G Skirtach Helmuth Möhwald Gleb B Sukhorukov

Nanocomposite microcapsules with both gold and magnetite nanoparticles in the shell were prepared in a layer-by-layer procedure using biocompatible polyelectrolytes and nanoparticles. The process of a nanocomposite multilayer formation was investigated using a quartz crystal microbalance (QCM). In addition, nanocomposite microcapsules were characterized by atomic force microscopy (AFM), transmi...

Journal: :Applied Catalysis B-environmental 2022

Pt supported on ordered mesoporous silica (KIT-6) catalyst was examined for the dehydrogenation of homocyclic liquid organic hydrogen carriers (LOHCs, 1: MCH, 2: hydrogenated biphenyl-based eutectic mixture (H-BPDM)) conditions. The longer pore-residence time MCH molecules in 3D bicontinuous pore structure Pt/KIT-6 strongly affected catalytic activity because a higher concentration achieved vic...

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