Effect of post-calcination thermal treatment on acid properties and pores structure of a mesoporous niobium-tungsten oxide

Atsushi Takagaki, Caio Tagusagawa, Kazuhiro Takanabe, Junko N. Kondo, Takashi Tatsumi, Kazunari Domen

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Effect of post-calcination thermal treatment on acid properties and pores structure of a mesoporous niobium-tungsten oxide was examined. Mesoporous Nb-W oxides treated by high temperature calcination from 673 up to 873 K exhibited a significant increase in pore size from 4.8 to 9.2 nm, a decrease in pore volume, surface area and acid amount, while the acid strength and density remained almost constant. A remarkable improvement in acid catalysis was observed for Friedel-Crafts alkylation and hydrolysis of disaccharide where the turnover frequency for both reactions increased continuously with calcination temperature.

Original languageEnglish
Pages (from-to)144-148
Number of pages5
JournalCatalysis Today
Volume192
Issue number1
DOIs
Publication statusPublished - Sep 30 2012
Externally publishedYes

Fingerprint

Niobium
Pore structure
Calcination
Tungsten
Heat treatment
Acids
Oxides
Disaccharides
Alkylation
Catalysis
Pore size
Hydrolysis
Temperature
tungsten oxide

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Chemistry(all)

Cite this

Effect of post-calcination thermal treatment on acid properties and pores structure of a mesoporous niobium-tungsten oxide. / Takagaki, Atsushi; Tagusagawa, Caio; Takanabe, Kazuhiro; Kondo, Junko N.; Tatsumi, Takashi; Domen, Kazunari.

In: Catalysis Today, Vol. 192, No. 1, 30.09.2012, p. 144-148.

Research output: Contribution to journalArticle

Takagaki, Atsushi ; Tagusagawa, Caio ; Takanabe, Kazuhiro ; Kondo, Junko N. ; Tatsumi, Takashi ; Domen, Kazunari. / Effect of post-calcination thermal treatment on acid properties and pores structure of a mesoporous niobium-tungsten oxide. In: Catalysis Today. 2012 ; Vol. 192, No. 1. pp. 144-148.
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