dingxinda
Yeni Üye
Kayıt Tarihi: 2021-13-Ocak
Aktif Durum: Pasif
Gönderilenler: 30
|
| Gönderen: 2021-23-Ocak Saat 09:53 | Kayıtlı IP
|
|
|
Alumina incorporated with mesoporous carbon as a novel
support of Pt catalyst for asymmetric hydrogenation
alumina/">fused alumina manufacturer in
indiaMesoporous carbon incorporated with different
alumina contents has been prepared by chelate-assisted
co-assembly method. These composites were used as
supports for Pt particles, and the as-prepared catalysts
were reduced at 873 K in hydrogen atmosphere. Our current
study by using N2 sorption, X-ray diffraction and
transmission electron microscopy revealed that carbon
incorporated with 10–15 wt% alumina was favorable for
the high Pt dispersion and retained the mesostructure of
carbon. Moreover, 15 wt% alumina-carbon composite
supported Pt particles modified by cinchonidine afforded
the highest (84.8%) enantiomeric excess and could be
reused at least five times for the asymmetric
hydrogenation of ethyl 2-oxo-4-phenylbutyrate in acetic
acid.hsl abrasive
refractory factory
|
Aktif Konular 
Üye Listesi 
Arama 
Yardım
Kayıt Ol 
Giriş
Gitar-tr.com FORUM : Gitar-tr.com Tanisma Toplantisi !!!
Konu: Alumina incorporated with mesoporous
