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2012 | 10 | 6 | 1867-1874
Tytuł artykułu

Tuning the textural and surface properties of carbon xerogels to be used as supports for gold catalysts

Treść / Zawartość
Warianty tytułu
Języki publikacji
EN
Abstrakty
EN
Carbon xerogels (CXs) synthesized from resorcinol and formaldehyde under different pH conditions were investigated. Both the textural and surface properties of the CXs depend closely on the pH used in the synthesis procedure. Concerning the texture, the mesoporous surface area (Smeso) increases and the micropore volume (Vmicro) decreases as the pH increases; concerning the surface chemistry, surface oxygen functional groups were easier to be created (by O2) on CX synthesized at lower pH. Application of these CXs as support of gold catalysts was also studied. Results showed that the oxygen activated CX that was synthesized at moderate pH (i.e., pH 6.0) was the most favorable support for gold catalysts used in selective oxidation of benzyl alcohol by molecular oxygen in liquid phase, due to the adequate amounts of surface oxygen functional groups created on the surface. [...]
Słowa kluczowe
Wydawca
Czasopismo
Rocznik
Tom
10
Numer
6
Strony
1867-1874
Opis fizyczny
Daty
wydano
2012-12-01
online
2012-09-21
Twórcy
autor
  • Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, South-central University for Nationalities, Wuhan, 430074, Hubei, China
autor
  • Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, South-central University for Nationalities, Wuhan, 430074, Hubei, China , ciaczjj@gmail.com
  • LCM — Laboratory of Catalysis and Materials — Associate Laboratory LSRE/LCM, Faculty of Engineering, University of Porto, 4200-465, Porto, Portugal
autor
  • Key Laboratory of Catalysis and Materials Science of the State Ethnic Affairs Commission & Ministry of Education, South-central University for Nationalities, Wuhan, 430074, Hubei, China
  • LCM — Laboratory of Catalysis and Materials — Associate Laboratory LSRE/LCM, Faculty of Engineering, University of Porto, 4200-465, Porto, Portugal , jlfig@fe.up.pt
Bibliografia
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Typ dokumentu
Bibliografia
Identyfikatory
Identyfikator YADDA
bwmeta1.element.-psjd-doi-10_2478_s11532-012-0106-2
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