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

By Shoichi Somekawa, Hiroto Watanabe, Yuya Oaki,Hiroaki Imai

September 22, 2019

  • Year

  • Technique

  • Industry

Title

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

Author

Shoichi Somekawa, Hiroto Watanabe, Yuya Oaki,Hiroaki Imai

Year

2015

Journal

Catalysis Communications

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. 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.

Full Article

https://www.sciencedirect.com/science/article/pii/S1566736715300790

Instrument

IRT-5000

Keywords

FTIR microscopy, Volatile Organic Compounds, Silica, Decomposition, Impregnation, Pore Size