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

Research output: Contribution to journalArticle

7 Citations (Scopus)


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. Cr6 + sites were found to be predominantly generated in a silica matrix with 1.2 nm diameter pores. The Cr6 + 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 Cr6 + sites could be repeatedly regenerated by heating above 350 °C.

Original languageEnglish
Pages (from-to)161-164
Number of pages4
JournalCatalysis Communications
Publication statusPublished - 2015 Dec 5



  • Catalytic combustion
  • Cr sites
  • Decomposition
  • Porous silica matrix
  • Recyclable oxidizer
  • VOC

ASJC Scopus subject areas

  • Catalysis
  • Process Chemistry and Technology
  • Chemistry(all)

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