Počet záznamů: 1
UTL titanosilicate: An extra-large pore epoxidation catalyst with tunable textural properties
- 1.
SYSNO ASEP 0452681 Druh ASEP J - Článek v odborném periodiku Zařazení RIV J - Článek v odborném periodiku Poddruh J Článek ve WOS Název UTL titanosilicate: An extra-large pore epoxidation catalyst with tunable textural properties Tvůrce(i) Přech, Jan (UFCH-W) RID
Čejka, Jiří (UFCH-W) RID, ORCID, SAIZdroj.dok. Catalysis Today. - : Elsevier - ISSN 0920-5861
Roč. 277, č. 1 (2016), s. 2-8Poč.str. 7 s. Jazyk dok. eng - angličtina Země vyd. NL - Nizozemsko Klíč. slova titanosilicate UTL ; top-down synthesis ; epoxidation Vědní obor RIV CF - Fyzikální chemie a teoretická chemie CEP GBP106/12/G015 GA ČR - Grantová agentura ČR Institucionální podpora UFCH-W - RVO:61388955 UT WOS 000385594800002 EID SCOPUS 84988649898 DOI 10.1016/j.cattod.2015.09.036 Anotace The UTL titanosilicate was prepared together with related lamellar Ti-IPC-1PISi material and zeolites Ti-IPC-2 (OKO) and Ti-IPC-4 (PCR) via top-down synthesis. The titanium can be incorporated to the UTL framework by conventional hydrothermal synthesis and it does not affect the so-called ADOR chemistry of the UTL material. Silica-titania pillaring concept was successfully applied providing very active Ti-IPC-1PITi catalyst for bulky molecules epoxidation with hydrogen peroxide. The textural properties of catalysts prepared can be tuned widely keeping the same crystalline titanosilicate active phase. All the materials were characterised by XRD, nitrogen sorption measurement, SEM, and DR-UV/vis spectroscopy. Ti-IPC-1PITi was the most active catalyst in cyclooctene, norbornene, and linalool epoxidation due to the lowest diffusion constraints and sufficient titanium content. Ti-UTL showed activity similar to Ti-BEA in epoxidation of cyclooctene and it provided different products than other titanosilicates in oxidation of linalool with hydrogen peroxide. Pracoviště Ústav fyzikální chemie J.Heyrovského Kontakt Michaela Knapová, michaela.knapova@jh-inst.cas.cz, Tel.: 266 053 196 Rok sběru 2017
Počet záznamů: 1