Hierarchically nanostructured porous group Vb metal oxides from alkoxide precursors and their role in the catalytic remediation of VOCs

Joanna C. Rooke, Tarek Barakat, Julien Brunet, Yu Li, Manuel Franco Finol, Jean François Lamonier, Jean Marc Giraudon, Renaud Cousin, Stéphane Siffert, Bao Lian Su

Résultats de recherche: Contribution à un journal/une revueArticle

Résumé

This study reveals how the textural properties of hierarchically porous group Vb metal oxides, prepared via a spontaneous auto-formation process, can strongly depend upon the pH of the reaction media, with an acidic media increasing the specific surface of Nb2O5 whereas a basic medium results in the highest specific surface for Ta2O5. Catalytic oxidation of toluene over Pd loaded hierarchically porous group Vb systems, and the supports alone, has shown that supports synthesised at pH 6 are the most active, despite having lower specific surfaces, thus implying modifications to the surface chemistry in the presence of H+ or OH- can affect the overall performance of the supported catalytic system.

langue originaleAnglais
Pages (de - à)300-309
Nombre de pages10
journalApplied Catalysis B: Environmental
Volume162
Les DOIs
étatPublié - 1 janv. 2015

Empreinte digitale

Remediation
Volatile organic compounds
Oxides
volatile organic compound
remediation
Metals
Catalytic oxidation
Toluene
Surface chemistry
toluene
oxidation
metal oxide

Citer ceci

@article{fd1f9d8935734f4e96febfbba3a6ca70,
title = "Hierarchically nanostructured porous group Vb metal oxides from alkoxide precursors and their role in the catalytic remediation of VOCs",
abstract = "This study reveals how the textural properties of hierarchically porous group Vb metal oxides, prepared via a spontaneous auto-formation process, can strongly depend upon the pH of the reaction media, with an acidic media increasing the specific surface of Nb2O5 whereas a basic medium results in the highest specific surface for Ta2O5. Catalytic oxidation of toluene over Pd loaded hierarchically porous group Vb systems, and the supports alone, has shown that supports synthesised at pH 6 are the most active, despite having lower specific surfaces, thus implying modifications to the surface chemistry in the presence of H+ or OH- can affect the overall performance of the supported catalytic system.",
keywords = "Alkoxide chemistry, Heterogeneous catalysis, Hierarchical porosity, Volatile organic compounds",
author = "Rooke, {Joanna C.} and Tarek Barakat and Julien Brunet and Yu Li and Finol, {Manuel Franco} and Lamonier, {Jean Fran{\cc}ois} and Giraudon, {Jean Marc} and Renaud Cousin and St{\'e}phane Siffert and Su, {Bao Lian}",
year = "2015",
month = "1",
day = "1",
doi = "10.1016/j.apcatb.2014.06.056",
language = "English",
volume = "162",
pages = "300--309",
journal = "Applied Catalysis B Environmental",
issn = "0926-3373",
publisher = "Elsevier",

}

Hierarchically nanostructured porous group Vb metal oxides from alkoxide precursors and their role in the catalytic remediation of VOCs. / Rooke, Joanna C.; Barakat, Tarek; Brunet, Julien; Li, Yu; Finol, Manuel Franco; Lamonier, Jean François; Giraudon, Jean Marc; Cousin, Renaud; Siffert, Stéphane; Su, Bao Lian.

Dans: Applied Catalysis B: Environmental, Vol 162, 01.01.2015, p. 300-309.

Résultats de recherche: Contribution à un journal/une revueArticle

TY - JOUR

T1 - Hierarchically nanostructured porous group Vb metal oxides from alkoxide precursors and their role in the catalytic remediation of VOCs

AU - Rooke, Joanna C.

AU - Barakat, Tarek

AU - Brunet, Julien

AU - Li, Yu

AU - Finol, Manuel Franco

AU - Lamonier, Jean François

AU - Giraudon, Jean Marc

AU - Cousin, Renaud

AU - Siffert, Stéphane

AU - Su, Bao Lian

PY - 2015/1/1

Y1 - 2015/1/1

N2 - This study reveals how the textural properties of hierarchically porous group Vb metal oxides, prepared via a spontaneous auto-formation process, can strongly depend upon the pH of the reaction media, with an acidic media increasing the specific surface of Nb2O5 whereas a basic medium results in the highest specific surface for Ta2O5. Catalytic oxidation of toluene over Pd loaded hierarchically porous group Vb systems, and the supports alone, has shown that supports synthesised at pH 6 are the most active, despite having lower specific surfaces, thus implying modifications to the surface chemistry in the presence of H+ or OH- can affect the overall performance of the supported catalytic system.

AB - This study reveals how the textural properties of hierarchically porous group Vb metal oxides, prepared via a spontaneous auto-formation process, can strongly depend upon the pH of the reaction media, with an acidic media increasing the specific surface of Nb2O5 whereas a basic medium results in the highest specific surface for Ta2O5. Catalytic oxidation of toluene over Pd loaded hierarchically porous group Vb systems, and the supports alone, has shown that supports synthesised at pH 6 are the most active, despite having lower specific surfaces, thus implying modifications to the surface chemistry in the presence of H+ or OH- can affect the overall performance of the supported catalytic system.

KW - Alkoxide chemistry

KW - Heterogeneous catalysis

KW - Hierarchical porosity

KW - Volatile organic compounds

UR - http://www.scopus.com/inward/record.url?scp=84904646317&partnerID=8YFLogxK

U2 - 10.1016/j.apcatb.2014.06.056

DO - 10.1016/j.apcatb.2014.06.056

M3 - Article

AN - SCOPUS:84904646317

VL - 162

SP - 300

EP - 309

JO - Applied Catalysis B Environmental

JF - Applied Catalysis B Environmental

SN - 0926-3373

ER -