fulltext.study @t Gmail

Catalytic combustion of ethyl acetate and nano-structural changes of ruthenium catalysts supported on tin oxide

Paper ID Volume ID Publish Year Pages File Format Full-Text
47286 46466 2010 7 PDF Available
Title
Catalytic combustion of ethyl acetate and nano-structural changes of ruthenium catalysts supported on tin oxide
Abstract

Correlation between the catalytic activity and the nano-structure of ruthenium catalyst supported on tin oxide was investigated. As-calcined Ru/SnO2 catalyst exhibited high catalytic activity for ethyl acetate combustion despite its low surface area of ca. 5.0 m2 g−1. The catalytic activity was degraded by the reduction treatment at 400 °C, whereas it was partially restored by the subsequent reoxidation treatment at 400 °C. To elucidate the variation in the catalytic activity, the ruthenium catalysts heat-treated under reductive or oxidative condition were characterized by X-ray diffraction (XRD), X-ray photoelectron spectroscopy (XPS), and transmission electron microscopy (TEM). In the as-calcined catalyst, it was revealed that the fine particles with the small contact angles were well-dispersed on the surface of tin oxide support. In the deactivated catalyst treated at 400 °C under a reductive atmosphere, the large particles of intermetallic compounds with the core–shell structure were clearly observed. On the other hand, upon the reoxidation treatment at 400 °C the particles with the core–shell structure disappeared accompanied with the appearance of the nano-sized particles. Accordingly, it was clarified that the catalytic activity was strongly influenced by the structural changes of active sites such as sintering and redispersion.

Keywords
Ruthenium; Tin oxide; Catalyst; Catalytic combustion; Ethyl acetate; Chemical interaction; TEM
First Page Preview
Catalytic combustion of ethyl acetate and nano-structural changes of ruthenium catalysts supported on tin oxide
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us
Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis B: Environmental - Volume 97, Issues 1–2, 9 June 2010, Pages 120–126
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
Online Support
Any Questions? feel free to contact us