Literature DB >> 20407684

Brønsted acid sites of zeolitic strength in amorphous silica-alumina.

Dilip G Poduval1, J A Rob van Veen, Marcello S Rigutto, Emiel J M Hensen.   

Abstract

The most acidic OH groups in silica-aluminas (zeolites, clays, amorphous silica-aluminas) can be made to react selectively with C(6)D(6) to give acidic OD groups; quantification by IR spectroscopy shows that differences in the overall Brønsted acidity of aluminosilicates are dominated by differences in the density of sites of similar acid strength.

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Year:  2010        PMID： 20407684     DOI： 10.1039/c000019a

Source DB:  PubMed          Journal:  Chem Commun (Camb)        ISSN： 1359-7345            Impact factor:   6.222


  5 in total

1.  Revealing Brønsted Acidic Bridging SiOHAl Groups on Amorphous Silica-Alumina by Ultrahigh Field Solid-State NMR.

Authors:  Zichun Wang; Kuizhi Chen; Yijiao Jiang; Julien Trébosc; Wenjie Yang; Jean-Paul Amoureux; Ivan Hung; Zhehong Gan; Alfons Baiker; Olivier Lafon; Jun Huang
Journal:  J Phys Chem Lett       Date:  2021-11-22       Impact factor: 6.888

2.  On the synergistic catalytic properties of bimetallic mesoporous materials containing aluminum and zirconium: the Prins cyclisation of citronellal.

Authors:  Selvedin Telalović; Anand Ramanathan; Jeck Fei Ng; Rajamanickam Maheswari; Cees Kwakernaak; Fouad Soulimani; Hans C Brouwer; Gaik Khuan Chuah; Bert M Weckhuysen; Ulf Hanefeld
Journal:  Chemistry       Date:  2011-01-21       Impact factor: 5.236

3.  Determining the Surface Structure of Silicated Alumina Catalysts via Isotopic Enrichment and Dynamic Nuclear Polarization Surface-Enhanced NMR Spectroscopy.

Authors:  Andrew G M Rankin; Paul B Webb; Daniel M Dawson; Jasmine Viger-Gravel; Brennan J Walder; Lyndon Emsley; Sharon E Ashbrook
Journal:  J Phys Chem C Nanomater Interfaces       Date:  2017-09-27       Impact factor: 4.126

4.  Nature of Enhanced Brønsted Acidity Induced by Extraframework Aluminum in an Ultrastabilized Faujasite Zeolite: An In Situ NMR Study.

Authors:  Brahim Mezari; Pieter C M M Magusin; Sami M T Almutairi; Evgeny A Pidko; Emiel J M Hensen
Journal:  J Phys Chem C Nanomater Interfaces       Date:  2021-04-22       Impact factor: 4.126

5.  Atomic Description of the Interface between Silica and Alumina in Aluminosilicates through Dynamic Nuclear Polarization Surface-Enhanced NMR Spectroscopy and First-Principles Calculations.

Authors:  Maxence Valla; Aaron J Rossini; Maxime Caillot; Céline Chizallet; Pascal Raybaud; Mathieu Digne; Alexandra Chaumonnot; Anne Lesage; Lyndon Emsley; Jeroen A van Bokhoven; Christophe Copéret
Journal:  J Am Chem Soc       Date:  2015-08-17       Impact factor: 15.419
  5 in total

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