Solvent-free infiltration method for mesoporous SnO2 using mesoporous silica templates

Shon, Jeong Kuk; Kong, Soo Sung; Kim, Yoon Sung; Lee, Jong Heun; Park, Won K.; Park, Seung C.; Kim, Ji Man

doi:10.1016/j.micromeso.2008.12.022

Cited by 81 publications

(45 citation statements)

References 54 publications

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“…This is due to the vacancies that reappeared in the pore which was previously filled with the precursor solution after the crystallization of SnO 2 material. The template-free mesoporous SnO 2 material displayed a surface area of 109 m 2 /g, a total pore volume of 0.22 cm 3 /g and a pore size of 6.2 nm, which are consistent with those reported earlier [15][16][17]. The decrease in surface area as well as total pore volume of the SnO 2 /KIT-6 composite and template-free mesoporous SnO 2 material in comparison with mesoporous silica KIT-6 templates were due to both the crystalline nature of the oxide materials as well as their higher bulk densities [18].…”

Section: N 2 Adsorption-desorption Analysissupporting

confidence: 90%

“…It can be seen that the framework structures for both samples are highly crystalline and display well-resolved diffraction peaks for SnO 2 nanocrystals that can be indexed to a tetragonal P4 2 /mnm). All the XRD patterns show broad peaks, and there are no major differences before and after the silica removal as reported by Shon et al [16]. These results indicated that the frameworks of SnO 2 material were formed within the confined mesopores of KIT-6 silica during the infiltration process in vacuum condition, and the nanostructured frameworks formed were maintained even after the silica removal.…”

Section: Materials Characterizationsupporting

confidence: 79%

“…However, the template-free mesoporous SnO 2 material demonstrated dual porous structures (~ 6 nm and ~ 11 nm). The first is expected from the KIT-6 silica framework (~ 6 nm) after the replication process, and the second (~ 11 nm) might be generated by the structural transformation from the cubic Ia3d mesostructure to the tetragonal I4 1 /a (or lower) mesostructure [16].…”

Section: N 2 Adsorption-desorption Analysismentioning

confidence: 99%

See 2 more Smart Citations

Nanocasting Route for the Synthesis of Ordered Mesoporous SnO2 with Highly Crystalline Framework

Juhari¹,

Bakar²,

Abdullah³

2014

JMSE-B

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Ordered mesoporous metal oxides (OMMO) SnO 2 with large surface areas and highly crystalline frameworks were successfully synthesized via nanocasting routes using 3D cubic ordered mesoporous silica KIT-6 templates. The chemical and structural properties of these materials were characterized by means of XRD, N 2 adsorption-desorption SEM and TEM analyses. The present work revealed that the mesoporous SnO 2 materials exhibited well-defined and long-range periodic order of mesopores as well as highly crystalline frameworks, indicating successful replication from the mesoporous KIT-6 silica templates. Moreover, these materials demonstrated high surface area of 109 m 2 /g and high pore volume of 0.22 cm 3 /g as well as large pore size of 6.2 nm. Hence, the nanocasting route offers a versatile and simple way of creating ordered mesoporous SnO 2 with enhanced properties that may have potential applications in the field of catalysis and gas-sensing.

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Section: N 2 Adsorption-desorption Analysissupporting

confidence: 90%

Section: Materials Characterizationsupporting

confidence: 79%

Section: N 2 Adsorption-desorption Analysismentioning

confidence: 99%

See 1 more Smart Citation

Nanocasting Route for the Synthesis of Ordered Mesoporous SnO2 with Highly Crystalline Framework

Juhari¹,

Bakar²,

Abdullah³

2014

JMSE-B

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“…The SnO 2 nanoclusters were prepared using SBA-15 (described in our previous work [21]) as the template and tin (II) chloride dihydrate (SnCl 2 ·2H 2 O) as the tin precursor, according to Shon et al [22]. Typically, 2 g of SBA-15 was activated at 100 • C for 1 h in a single-necked flask, and then 3.06 g of SnCl 2 ·2H 2 O (m. p. 37-38 • C) was poured into the flask.…”

Section: Materials Synthesismentioning

confidence: 99%

SnO2 nanocluster supported Pt catalyst with high stability for proton exchange membrane fuel cells

Dou

Hou

Liang³

et al. 2013

Electrochimica Acta

101

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“…The mesoporous silica template (KIT-6) was synthesized following previously reported methods [26,[36][37][38][39][40]. A triblock copolymer (Pluronic P123, EO 20 PO 70 EO 20 , Aldrich) and tetraethylorthosilicate (TEOS, Aldrich) were utilized as the structure-directing agent and framework source, respectively.…”

Section: Catalyst Synthesismentioning

confidence: 99%

Room-temperature CO oxidation over a highly ordered mesoporous RuO2 catalyst

Park

Shon

Jin

et al. 2011

Reac Kinet Mech Cat

Self Cite

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Highly ordered mesoporous ruthenium dioxide (meso-RuO 2 ) has been successfully synthesized by controlling the surface hydrophobicity of a mesoporous silica template (KIT-6) via a nano-replication method. The meso-RuO 2 material, thus obtained, exhibits a well-defined mesostructure and high surface area (131 m 2 g -1 ). The physicochemical properties of the meso-RuO 2 material are characterized by electron microscopy, X-ray diffraction, N 2 adsorption-desorption, temperature programmed techniques, and X-ray photoelectron spectroscopy. Pretreatment of the meso-RuO 2 catalyst under different gas environments (O 2 , H 2 and CO) strongly affects the catalytic activity towards CO oxidation. The meso-RuO 2 , pretreated by O 2 flowing at 200°C, exhibited excellent catalytic activity for CO oxidation, 100% CO conversion with long-term stability at room temperature, whereas the meso-RuO 2 catalysts with pretreatment under other conditions are not very active at room temperature. It is found that the surface oxygen species generated on the meso-RuO 2 during O 2 pretreatment at 200°C provide CO oxidation activity at room temperature.

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Solvent-free infiltration method for mesoporous SnO2 using mesoporous silica templates

Cited by 81 publications

References 54 publications

Nanocasting Route for the Synthesis of Ordered Mesoporous SnO2 with Highly Crystalline Framework

Nanocasting Route for the Synthesis of Ordered Mesoporous SnO2 with Highly Crystalline Framework

SnO2 nanocluster supported Pt catalyst with high stability for proton exchange membrane fuel cells

Room-temperature CO oxidation over a highly ordered mesoporous RuO2 catalyst

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