fulltext.study @t Gmail

Electrochemical synthesis of novel structured catalysts for H2 production

Paper ID Volume ID Publish Year Pages File Format Full-Text
47771 46481 2009 10 PDF Available
Title
Electrochemical synthesis of novel structured catalysts for H2 production
Abstract

Innovative catalysts supported on metallic foams (FeCrAlloy) have been prepared by electrochemical synthesis of Ni-containing hydrotalcite-type (HT) films, and used in the steam methane reforming. It consisted of a one-step synthesis and deposition of HT compounds on metallic supports after the application of a cathodic potential on the foam. The effects of synthesis parameters, applied potential (−0.9 and −1.2 V) and time (600, 1000 and 1800 s), on the properties of the supported films and catalytic performances were investigated. The potential applied mainly affected the rate of the basic media generation in the vicinity of the electrode, which is responsible for the precipitation of the HT compounds. The pulse length was the key factor to determining both the coverage of the support and the thickness of the film. Moreover, the Ni- and Al-content in the catalyst depended on both factors. The synthesis conditions affected the steam reforming tests performed under industrial-type conditions. The selection of optimum synthesis conditions (−1.2 V for 1000 s) led to a well-adhered catalyst film, showing catalytic performances close to the thermodynamic equilibrium and stable with increasing time-on-stream. Furthermore, this preparation method offers the opportunity to develop processes with increasing chemico-energetic efficiency of endothermic reactions.

Keywords
H2 production; Structured catalyst; Electrochemical synthesis; Hydrotalcite-type compound; Nickel; Metallic foam; Steam methane reforming
First Page Preview
Electrochemical synthesis of novel structured catalysts for H2 production
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 91, Issues 1–2, 7 September 2009, Pages 563–572
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