VOC decomposition over a wide range of temperatures using thermally stable Cr6 + sites in a porous silica matrix

Shoichi Somekawa; Hiroto Watanabe; Yuya Oaki; Hiroaki Imai

doi:10.1016/j.catcom.2015.09.019

VOC decomposition over a wide range of temperatures using thermally stable Cr^{6 +} sites in a porous silica matrix

Shoichi Somekawa, Hiroto Watanabe, Yuya Oaki, Hiroaki Imai

Department of Applied Chemistry

Research output: Contribution to journal › Article

7 Citations (Scopus)

Abstract

Cr species were inserted into porous silica matrices having a pore size of 0.7, 1.2, 2.4 (2.5) or 3.0 nm by an impregnation method using a high-concentration precursor. Cr^{6 +} sites were found to be predominantly generated in a silica matrix with 1.2 nm diameter pores. The Cr^{6 +} sites were applied as a recyclable oxidizer and catalyst for the decomposition of volatile organic compounds (VOCs) over a wide range of reaction temperatures starting from ambient, due to their strong oxidizing ability. The Cr^{6 +} sites could be repeatedly regenerated by heating above 350 °C.

Original language	English
Pages (from-to)	161-164
Number of pages	4
Journal	Catalysis Communications
Volume	72
DOIs	https://doi.org/10.1016/j.catcom.2015.09.019
Publication status	Published - 2015 Dec 5

Fingerprint

Volatile Organic Compounds

Volatile organic compounds

Silicon Dioxide

Silica

Decomposition

Impregnation

Pore size

Heating

Temperature

Catalysts

Keywords

Catalytic combustion
Cr sites
Decomposition
Porous silica matrix
Recyclable oxidizer
VOC

ASJC Scopus subject areas

Catalysis
Process Chemistry and Technology
Chemistry(all)

Cite this

Somekawa, S., Watanabe, H., Oaki, Y., & Imai, H. (2015). VOC decomposition over a wide range of temperatures using thermally stable Cr^{6 +} sites in a porous silica matrix. Catalysis Communications, 72, 161-164. https://doi.org/10.1016/j.catcom.2015.09.019

VOC decomposition over a wide range of temperatures using thermally stable Cr^{6 +} sites in a porous silica matrix. / Somekawa, Shoichi; Watanabe, Hiroto; Oaki, Yuya ; Imai, Hiroaki.

In: Catalysis Communications, Vol. 72, 05.12.2015, p. 161-164.

Research output: Contribution to journal › Article

Somekawa, S, Watanabe, H, Oaki, Y & Imai, H 2015, 'VOC decomposition over a wide range of temperatures using thermally stable Cr^{6 +} sites in a porous silica matrix', Catalysis Communications, vol. 72, pp. 161-164. https://doi.org/10.1016/j.catcom.2015.09.019

Somekawa S, Watanabe H, Oaki Y , Imai H. VOC decomposition over a wide range of temperatures using thermally stable Cr^{6 +} sites in a porous silica matrix. Catalysis Communications. 2015 Dec 5;72:161-164. https://doi.org/10.1016/j.catcom.2015.09.019

Somekawa, Shoichi ; Watanabe, Hiroto ; Oaki, Yuya ; Imai, Hiroaki. / VOC decomposition over a wide range of temperatures using thermally stable Cr^{6 +} sites in a porous silica matrix. In: Catalysis Communications. 2015 ; Vol. 72. pp. 161-164.

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Access to Document

10.1016/j.catcom.2015.09.019