Facile synthesis of tailored nanostructured ORMOSIL particles by a selective dissolution process

Park, Jong Woong; Kim, Jung Soo; Park, Tae Jae; Kim, Euk Hyun; Koo, Sang Man

doi:10.1016/j.jcis.2014.10.002

Cited by 6 publications

(2 citation statements)

References 39 publications

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“…Very recently, self-templating methods had been developed for synthesizing OHSNSs. [24][25][26][27][28][29][30] Shi and coworkers 24 reported a "in situ hydrophobic layer protected selective etching" method to fabricate amino group functionalized HSNSs, in which the introduced amino group could form hydrophobic protecting layers on the surface of pure silica core/ organic hybrid silica shell nanospheres, and consequently the relatively unstable pure silica core was selectively dissolved. In above-mentioned self-templating methods, the key point was that hybrid silica shell was more stable against etching than pure silica inner core.…”

Section: Introductionmentioning

confidence: 99%

A novel functional group difference-based selective etching strategy for the synthesis of hollow organic silica nanospheres

Zeng

Chen

et al. 2016

RSC Adv.

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Section: Introductionmentioning

confidence: 99%

A novel functional group difference-based selective etching strategy for the synthesis of hollow organic silica nanospheres

Zeng

Chen

et al. 2016

RSC Adv.

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“…methyltrimethoxysilane (MTMS) or methyltriethoxysilane (MTES). Silica through any of these modifications is frequently referred to as ormosil (organically modified silica) [15,16].…”

Section: Introductionmentioning

confidence: 99%

Convenient Preparation of Superhhydrophobic Ormosil Powder

Li¹,

Gao²,

Liu³

2015

Proceedings of the 3rd International Conference on Advances in Energy and Environmental Science 2015

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Methyltrimethoxysilane (MTMS) was used as the precursor to prepare organically modified silica (ormosil) aerogel powder. The preparation was done in two steps. In the first step, MTMS was transformed into a gel through crosslinking by a small amount of sodium silicate, and the gel was broken into small pieces by strong shearing. In the second step, additional MTMS that was prehydrolyzed by acid catalyzed hydrolysis was added to the former gel dispersion, then ammonium hydroxide was added to make the pH to be about 11. An instant precipitation of white solid was observed after ammonium hydroxide addition. Superhydrophobic ormosil powder was obtained after ambient pressure drying of the precipitated solid. Scanning electron microscopy(SEM) observation shows that the obtained powder was of porous structure resembling aerogel.

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Development of mesoporous structures of composite silica particles with various organic functional groups in the presence and absence of ammonia catalyst

et al. 2017

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Facile synthesis of tailored nanostructured ORMOSIL particles by a selective dissolution process

Cited by 6 publications

References 39 publications

A novel functional group difference-based selective etching strategy for the synthesis of hollow organic silica nanospheres

A novel functional group difference-based selective etching strategy for the synthesis of hollow organic silica nanospheres

Convenient Preparation of Superhhydrophobic Ormosil Powder

Development of mesoporous structures of composite silica particles with various organic functional groups in the presence and absence of ammonia catalyst

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