Hydrophobic Tungsten-Containing MFI-Type Zeolite Films for Exhaust Gas Detection - Normandie Université Access content directly
Journal Articles ACS Applied Materials & Interfaces Year : 2019

Hydrophobic Tungsten-Containing MFI-Type Zeolite Films for Exhaust Gas Detection

Julien Grand
  • Function : Author
Siddulu Naidu Talapaneni
  • Function : Author
Hristiyan A. Aleksandrov
  • Function : Author
Georgi N. Vayssilov
  • Function : Author
Svetlana Mintova

Abstract

The assembly of highly hydrophobic nanosized tungsten containing MFI type zeolite nanocrystals (W-MFI) in films, and their further use for selective exhaust gas (CO, CO2, NO and NO2) detection was investigated by operando IR spectroscopy. Due to the hydrophobic nature and the presence of tungsten in the framework, the W-MFI films showed excellent sorption capacity towards all analytes, in comparison to the pure silica (Si-MFI) film. The high sensitivity of the W-MFI film towards low concentration of CO2 and NO2 (1-3 ppm) was demonstrated. In addition, the interactions between the analytes and zeolite films have been studied by quantum chemical calculations modeling of the W centers based on the density functional theory method.
Fichier principal
Vignette du fichier
245.pdf (1.06 Mo) Télécharger le fichier
Origin : Files produced by the author(s)

Dates and versions

hal-03027966 , version 1 (27-11-2020)

Identifiers

Cite

Julien Grand, Siddulu Naidu Talapaneni, Hristiyan A. Aleksandrov, Georgi N. Vayssilov, Svetlana Mintova. Hydrophobic Tungsten-Containing MFI-Type Zeolite Films for Exhaust Gas Detection. ACS Applied Materials & Interfaces, 2019, 11 (13), pp.12914-12919. ⟨10.1021/acsami.8b17626⟩. ⟨hal-03027966⟩
46 View
276 Download

Altmetric

Share

Gmail Facebook X LinkedIn More