Number of surface redox sites of V-Sb-O catalysts

Number of surface redox sites of V-Sb-O catalysts The NARP technique was applied for the measurement of surface redox sites of V-Sb-oxide catalysts. The profile of produced nitrogen in the NARP measurement was composed of two parts; the initial sharp peak and the tailing part, those represented the contribution of surface redox sites and regeneration step of the redox sites with lattice oxygen, respectively. The surface concentration of redox sites determined from the initial sharp peak was almost equivalent to the surface concentration of vanadium ions above surface Sb/V ratio of 1.0. The role of V-O-Sb sites on VSbO4 surface as redox sites was suggested. The tailing part was broader than that of V2O5 at the same temperature range because of the faster regeneration step relative to that in V2O5. The surface concentration and the regeneration of redox sites strongly depend on the preparation method. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Research on Chemical Intermediates Springer Journals

Number of surface redox sites of V-Sb-O catalysts

Loading next page...
 
/lp/springer_journal/number-of-surface-redox-sites-of-v-sb-o-catalysts-tMbe00vXZS
Publisher
Springer Journals
Copyright
Copyright © 2000 by VSP
Subject
Chemistry; Catalysis; Physical Chemistry; Inorganic Chemistry
ISSN
0922-6168
eISSN
1568-5675
D.O.I.
10.1163/156856700X00147
Publisher site
See Article on Publisher Site

Abstract

The NARP technique was applied for the measurement of surface redox sites of V-Sb-oxide catalysts. The profile of produced nitrogen in the NARP measurement was composed of two parts; the initial sharp peak and the tailing part, those represented the contribution of surface redox sites and regeneration step of the redox sites with lattice oxygen, respectively. The surface concentration of redox sites determined from the initial sharp peak was almost equivalent to the surface concentration of vanadium ions above surface Sb/V ratio of 1.0. The role of V-O-Sb sites on VSbO4 surface as redox sites was suggested. The tailing part was broader than that of V2O5 at the same temperature range because of the faster regeneration step relative to that in V2O5. The surface concentration and the regeneration of redox sites strongly depend on the preparation method.

Journal

Research on Chemical IntermediatesSpringer Journals

Published: Jan 1, 2000

References

You’re reading a free preview. Subscribe to read the entire article.


DeepDyve is your
personal research library

It’s your single place to instantly
discover and read the research
that matters to you.

Enjoy affordable access to
over 18 million articles from more than
15,000 peer-reviewed journals.

All for just $49/month

Explore the DeepDyve Library

Search

Query the DeepDyve database, plus search all of PubMed and Google Scholar seamlessly

Organize

Save any article or search result from DeepDyve, PubMed, and Google Scholar... all in one place.

Access

Get unlimited, online access to over 18 million full-text articles from more than 15,000 scientific journals.

Your journals are on DeepDyve

Read from thousands of the leading scholarly journals from SpringerNature, Elsevier, Wiley-Blackwell, Oxford University Press and more.

All the latest content is available, no embargo periods.

See the journals in your area

DeepDyve

Freelancer

DeepDyve

Pro

Price

FREE

$49/month
$360/year

Save searches from
Google Scholar,
PubMed

Create lists to
organize your research

Export lists, citations

Read DeepDyve articles

Abstract access only

Unlimited access to over
18 million full-text articles

Print

20 pages / month

PDF Discount

20% off