scholarly journals Modification of acid sites in ZSM-5 by ion-exchange: An in-situ FTIR study

2014 ◽  
Vol 316 ◽  
pp. 405-415 ◽  
Author(s):  
Weiqiang Wu ◽  
Eric Weitz
2014 ◽  
Vol 900 ◽  
pp. 390-393
Author(s):  
Ming Jian Luo ◽  
Bing Hu ◽  
Xin Yue Liu

An easy-operation in-situ FTIR cell is designed and used for the investigation of dehydroxylation and pyridine adsorption FTIR study. The dehydroxylation FTIR spectra of MCM-41 indicate that the isolated, geminal, and oxygen perturbed silanol vibrated at about 3745, 3735 and 3520 cm-1, respectively. Py-FTIR spectra indicate that MCM-41 has none Lewis and Brönsted acid sites while the acid amount and acid strength of AlMCM-41 increase with the decrease of Si/Al.


Author(s):  
Nuno Batalha ◽  
Jean-Dominique Comparot ◽  
Anthony Le Valant ◽  
Ludovic Pinard

Acid sites, in particular Brønsted sites, are often reported to enhance the catalytic performance of metal catalysts, like platinum, in hydrogenation. The significant boost in catalytic performance suggests a bifunctional...


1998 ◽  
Vol 94 (14) ◽  
pp. 2025-2032 ◽  
Author(s):  
Stuart M. Holmes ◽  
Vladimir L. Zholobenko ◽  
Alan Thursfield ◽  
Richard J. Plaisted ◽  
Colin S. Cundy ◽  
...  
Keyword(s):  

2016 ◽  
Vol 181 ◽  
pp. 672-680 ◽  
Author(s):  
Antoine Bach Delpeuch ◽  
Frédéric Maillard ◽  
Marian Chatenet ◽  
Priscillia Soudant ◽  
Carsten Cremers

2018 ◽  
Vol 122 (17) ◽  
pp. 4273-4284 ◽  
Author(s):  
Paul A. Christensen ◽  
Z. T. A. W. Mashhadani ◽  
Abd Halim Bin Md Ali ◽  
Michael A. Carroll ◽  
Philip A. Martin

Sign in / Sign up

Export Citation Format

Share Document