Opening book details…
Can I read Synthesis and solid-state NMR characterization of cubic mesoporous silica SBA-1 functionalized with sulfonic acid groups on EtoBox?
Synthesis and solid-state NMR characterization of cubic mesoporous silica SBA-1 functionalized with sulfonic acid groups by Hui-Hsu Gavin Tsai; Po-Jui Chiu; Guang-Liang Jheng; Chun-Chiang Ting; Yu-Chi Pan; Hsien-Ming Kao is a Chemistry article available to read on EtoBox.
What is Synthesis and solid-state NMR characterization of cubic mesoporous silica SBA-1 functionalized with sulfonic acid groups about?
Well-ordered cubic mesoporous silicas SBA-1 functionalized with sulfonic acid groups have been synthesized through in situ oxidation of mercaptopropyl groups with H 2 O 2 via co-condensation of tetraethoxysilane (TEOS) and 3-mercaptopropyltrimethoxysilane (MPTMS) templated by cetyltriethylammonium bromide (CTEABr) under strong acidic conditions. Various synthesis parameters such as the amounts of H 2 O 2 and MPTMS on the structural ordering of the resultant materials were systematically investigated. The materials thus obtained were characterized by a variety of techniques including powder X-ray diffraction (XRD), multinuclear solid-state Nuclear Magnetic Resonance (NMR) spectroscopy, 29 Si{ 1 H} 2D HETCOR (heteronuclear correlation) NMR spectroscopy, thermogravimetric analysis (TGA), and nitrogen sorption measurements. By using 13 C CPMAS NMR technique, the status of the incorporated thiol groups and their transformation to sulfonic acid groups can be monitored and, as an extension, to define the optimum conditions to be used for the oxidation reaction to be quantitative. In particular, 29 Si{ 1 H} 2D HETCOR NMR revealed that the protons in sulfonic acid groups are in close proxim
Who reads Synthesis and solid-state NMR characterization of cubic mesoporous silica SBA-1 functionalized with sulfonic acid groups?
It is typically read by researchers, students, and practitioners in Chemistry.
- Author
- Hui-Hsu Gavin Tsai; Po-Jui Chiu; Guang-Liang Jheng; Chun-Chiang Ting; Yu-Chi Pan; Hsien-Ming Kao
- Publisher
- Elsevier Science; Elsevier ; Elsevier Inc.; Elsevier BV (ISSN 0021-9797)
- Published
- 2011
- Language
- EN
- Field
- Chemistry (Physical Sciences)