Matches in SemOpenAlex for { <https://semopenalex.org/work/W561954756> ?p ?o ?g. }
Showing items 1 to 71 of
71
with 100 items per page.
- W561954756 abstract "In order to heighten the nickel content in mesoporous silica frameworks, a new directsynthesis method, called modified DS method, has been developed instead of thecommonly used direct synthesis method. In addition, with the aim of incorporating ahigh amount of titania into SBA-15 mesoporous silica without blocking its mesopores, a multistep impregnation method, called the MSI method, has also been developed. By using the two developed methods, high nickel- and high titania-containing mesoporous silicas obtained werc synthesized. The nickel- and titania-containing mesoporous silicas were characterised by various techniques, i.e. XRD, TEM, EDX, SENI, N2-sorption, XPS, FTIR, UV-Vis-DRS, UV-VIS, TPR, and Raman spectroscopy. For nickel-containing mesoporous silicas synthesized by the modified DS method,satisfactory mesostructures were obtained and the nickel content was increased up to14.7 wt.%. So far, no reports have been published on synthesis of mesoporousMCM-41-type silica with higher nickel content than 3.6 wt.% using DS method. Viaour modified IDS method, high BET surface area (>840 rný/g) and pore volume (>-0.73cm3/g were also achieved. Nickel was found to be incorporated into the silicaframeworks. Formation of nickel phyllosilicates was also confirmed. After activation, mesostructurcs were still intact. Small nickel clusters embedded in the silica walls were found. A high amount of titania (up to 24.4 wt.%) was incorporated into the mesoporous SBA-15 silica via the multistep impregnation method. No damage to the SBA-15 silicamesostructures was caused. The existence of small titania nano-domins was confirmed to be present by Raman and UV-vis-DRS measurements. High dispersion of them was realized via this method according to the results of low-anglc XRD, TEM and N2-sorption measurements. Importantly, no blockage of mesopores was observed.Photo-activity tests showed the superiority of the materials synthesized by the MSImethod to those by one-step impregnation method." @default.
- W561954756 created "2016-06-24" @default.
- W561954756 creator A5046597133 @default.
- W561954756 date "2005-01-01" @default.
- W561954756 modified "2023-09-23" @default.
- W561954756 title "High nickel- and titania-containing mesoporous silicas : synthesis and characterisation" @default.
- W561954756 hasPublicationYear "2005" @default.
- W561954756 type Work @default.
- W561954756 sameAs 561954756 @default.
- W561954756 citedByCount "0" @default.
- W561954756 crossrefType "dissertation" @default.
- W561954756 hasAuthorship W561954756A5046597133 @default.
- W561954756 hasConcept C127413603 @default.
- W561954756 hasConcept C13965031 @default.
- W561954756 hasConcept C150394285 @default.
- W561954756 hasConcept C160892712 @default.
- W561954756 hasConcept C161790260 @default.
- W561954756 hasConcept C175708663 @default.
- W561954756 hasConcept C178790620 @default.
- W561954756 hasConcept C185592680 @default.
- W561954756 hasConcept C191897082 @default.
- W561954756 hasConcept C192562407 @default.
- W561954756 hasConcept C2777496208 @default.
- W561954756 hasConcept C42360764 @default.
- W561954756 hasConcept C504270822 @default.
- W561954756 hasConcept C58445606 @default.
- W561954756 hasConcept C5913796 @default.
- W561954756 hasConcept C82776694 @default.
- W561954756 hasConceptScore W561954756C127413603 @default.
- W561954756 hasConceptScore W561954756C13965031 @default.
- W561954756 hasConceptScore W561954756C150394285 @default.
- W561954756 hasConceptScore W561954756C160892712 @default.
- W561954756 hasConceptScore W561954756C161790260 @default.
- W561954756 hasConceptScore W561954756C175708663 @default.
- W561954756 hasConceptScore W561954756C178790620 @default.
- W561954756 hasConceptScore W561954756C185592680 @default.
- W561954756 hasConceptScore W561954756C191897082 @default.
- W561954756 hasConceptScore W561954756C192562407 @default.
- W561954756 hasConceptScore W561954756C2777496208 @default.
- W561954756 hasConceptScore W561954756C42360764 @default.
- W561954756 hasConceptScore W561954756C504270822 @default.
- W561954756 hasConceptScore W561954756C58445606 @default.
- W561954756 hasConceptScore W561954756C5913796 @default.
- W561954756 hasConceptScore W561954756C82776694 @default.
- W561954756 hasLocation W5619547561 @default.
- W561954756 hasOpenAccess W561954756 @default.
- W561954756 hasPrimaryLocation W5619547561 @default.
- W561954756 hasRelatedWork W2000345630 @default.
- W561954756 hasRelatedWork W2011174837 @default.
- W561954756 hasRelatedWork W2011257112 @default.
- W561954756 hasRelatedWork W2013630386 @default.
- W561954756 hasRelatedWork W2022158238 @default.
- W561954756 hasRelatedWork W2029675455 @default.
- W561954756 hasRelatedWork W2032543750 @default.
- W561954756 hasRelatedWork W2068937440 @default.
- W561954756 hasRelatedWork W2084445042 @default.
- W561954756 hasRelatedWork W2085327837 @default.
- W561954756 hasRelatedWork W2090816927 @default.
- W561954756 hasRelatedWork W2094769242 @default.
- W561954756 hasRelatedWork W2349995041 @default.
- W561954756 hasRelatedWork W2352041803 @default.
- W561954756 hasRelatedWork W2359169081 @default.
- W561954756 hasRelatedWork W2362943829 @default.
- W561954756 hasRelatedWork W2385088404 @default.
- W561954756 hasRelatedWork W2393119384 @default.
- W561954756 hasRelatedWork W2790351203 @default.
- W561954756 hasRelatedWork W909964272 @default.
- W561954756 isParatext "false" @default.
- W561954756 isRetracted "false" @default.
- W561954756 magId "561954756" @default.
- W561954756 workType "dissertation" @default.