Nanostructures constituted by unusually small silica nanoparticles modified with metal oxides as support for ultra-small gold nanoparticles; Colloids and Surfaces A: Physicochemical and Engineering Aspects; Vol. 487

Nanostructures constituted by unusually small silica nanoparticles modified with metal oxides as support for ultra-small gold nanoparticles; Colloids and Surfaces A: Physicochemical and Engineering Aspects; Vol. 487

書誌詳細
Parent link:	Colloids and Surfaces A: Physicochemical and Engineering Aspects: Scientific Journal Vol. 487.— 2015.— [P. 9–16]
共著者:	Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра технологии органических веществ и полимерных материалов (ТОВПМ), Национальный исследовательский Томский политехнический университет (ТПУ) Институт природных ресурсов (ИПР) Кафедра физической и аналитической химии (ФАХ)
その他の著者:	Martynyuk O. A. Oksana Anatolievna, Kotolevich Yu. S., Pestryakov A. N. Aleksey Nikolaevich, Mota-Morales J. D. Josue, Bogdanchikova N. E. Nina Evgenjevna
要約:	Title screen Mesoporous silica composed by small nanoparticles has been synthesized by a modified neutral S0I0 templating route method (S0, neutral primary amine surfactant; I0, neutral inorganic precursor). Decreasing the polarity of the medium and tuning the composition of the S0I0 pair allow the formation of silica nanoparticles that are agglomerated into silica fractal or sponge-like structures. Those nanoparticles conform the building blocks of the neutral S0I0 method. In this work for the first time they are observed isolated by HRTEM. On the other hand, the addition of metal oxides triggers the formation of aggregates containing unusually small silica nanoparticles, i.e. smaller building blocks that in bare silica, in the range of 2–4 nm. Further, through the impregnation of a gold precursor post-synthesis, ultra small gold nanoparticles (1 nm) were embedded in the final silica nanostructures upon calcination of the organic precursors. FTIR and UV–vis spectroscopies, TEM and SEM, XRD and N2 absorption were used to characterize the resultant materials. Режим доступа: по договору с организацией-держателем ресурса
言語:	英語
出版事項:	2015
主題:	электронный ресурс труды учёных ТПУ диоксид кремния наночастицы оксиды металлов катализ
オンライン･アクセス:	http://dx.doi.org/10.1016/j.colsurfa.2015.09.052
フォーマット:	電子媒体図書の章
KOHA link:	https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=645157

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