Buscar
Mostrando ítems 1-10 de 33
Simple thiol-ene click chemistry modification of SBA-15 silica pores with carboxylic acids
(Academic Press Inc Elsevier Science, 2015-07)
A straightforward approach for anchoring tailored carboxylic groups in mesoporous SiO2 colloidal materials is presented. The thiol-ene photochemical reaction between vinyltrimethoxysilane precursors and various thiocarboxylic ...
Low temperature synthesis of CdSiO3 nanostructures
(Sociedade Brasileira de Química, 2011)
We report the synthesis of single-phase, crystalline CdSiO3 nanostructures at 580ºC; to the best of our knowledge, this is the lowest temperature at which this material is reported to form. The desired phase does not form ...
Role of the linking of metallic centers to macromolecular and oligomeric systems in the pyrolytic products
(SOC CHILENA QUIMICA, 2008-03)
Pyrolysis of the mixtures: [NP(O2C12H8)] // AuCl(PPh2) system (I) [NP(O2C2H8)(0.8)[NP(OC6H4CH2CN.{Ru})(2)](0.15) NP(OC6H5)1OC(6)H(4)CH(2)CN.[Ru](0.05)](n) // (BuSiMe2Cl)-Bu-1 system (II) and N3P3[NH(CH2)(3)Si(OEt)(3)](6) ...
Understanding Zr and Si interdispersion in Zr1-xSixO2 mesoporous thin films by using FTIR and XANES spectroscopy
(Royal Society of Chemistry, 2016-03)
Zr–Si mixed mesoporous oxides were obtained in a wide range of proportions, from 0 to 30% and from 70 to 100% of Si, using Si(OEt)4 and ZrCl4 as precursors and Pluronic F127 as a template. The oxide mesostructure was ...
ROLE OF THE LINKING OF METALLIC CENTERS TO MACROMOLECULAR AND OLIGOMERIC SYSTEMS IN THE PYROLYTIC PRODUCTS
(Sociedad Chilena de Química, 2008)
Rapid pore expansion of mesoporous silica-based materials using microwave irradiation and pore swelling agents
(Elsevier, 2021-12)
In the present work we analyze the use of microwave radiation in the presence of pore swelling agents as a post-synthesis treatment for expanding the pore size of non-calcined SiO2-based mesoporous materials. In comparison ...
Mesoporous aminopropyl-functionalized hybrid thin films with modulable surface and environment-responsive behavior
(American Chemical Society, 2008-07)
A first study of the behavior of amino functions in mesoporous hybrid thin films M1-x(Si-(CH2)3NH2) xO2-x/2 (M = Si, Ti, Zr; 0.05 ≤ x ≤ 0.2) with accessible Im3̄m- or Fm3̄m-derived pore mesostructures is presented. An XPS ...