Simple and efficient way of molybdenum oxide-based catalyst activation for olefins metathesis by methane pretreatment
Authors:
- Piotr Michorczyk,
- Adam Węgrzyniak,
- Adam Węgrzynowicz,
- Jarosław Handzlik
Abstract
An efficient method for activation of MoO3-based catalysts obtained by incipient wetness impregnation was elaborated. It has been found that a short (30 min) pretreatment of the catalyst in pure methane atmosphere above 600 °C enhances an initial specific activity in propene metathesis by 1–2 orders of magnitude compared with the pretreatment in inert gas. A two-step activation process including carbide-like species formation, similar to dehydroaromatization, and metathetically active carbene-like species generation via interaction of Mo sites with ethene is proposed.
- Record ID
- CUT719e8466120c46dfa02848e020aa37ff
- Publication categories
- ;
- Author
- Journal series
- ACS Catalysis, ISSN 2155-5435
- Issue year
- 2019
- Vol
- 9
- No
- 12
- Pages
- 11461-11467
- Other elements of collation
- schem.; tab.; wykr.; Bibliografia (na s.) - 11466-11467; Bibliografia (liczba pozycji) - 29; Oznaczenie streszczenia - Abstr.; Numeracja w czasopiśmie - Vol. 9, Iss. 12
- Keywords in English
- propene metathesis, molybdenum-based catalyst, methane pretreatment, carbide, mesoporous sili
- DOI
- DOI:10.1021/acscatal.9b03714 Opening in a new tab
- URL
- https://pubs.acs.org/doi/full/10.1021/acscatal.9b03714 Opening in a new tab
- Related project
- Nowe uporządkowane nanoporowate katalizatory dla procesu metatezy olefin - struktura form powierzchniowych oraz mechanizm reakcji w ujęciu eksperymentalnym i teoretycznym. . Project leader at PK: , ,
Projects financed by NSC [Projekty finansowane przez NCN] - Language
- eng (en) English
- Score (nominal)
- 200
- Additional fields
- Indeksowana w: Web of Science, Scopus
- Uniform Resource Identifier
- https://cris.pk.edu.pl/info/article/CUT719e8466120c46dfa02848e020aa37ff/
- URN
urn:pkr-prod:CUT719e8466120c46dfa02848e020aa37ff
* presented citation count is obtained through Internet information analysis, and it is close to the number calculated by the Publish or PerishOpening in a new tab system.