fulltext.study @t Gmail

New Pd–Pt and Pd–Au catalysts for an efficient synthesis of H2O2 from H2 and O2 under very mild conditions

Paper ID Volume ID Publish Year Pages File Format Full-Text
43123 45956 2009 7 PDF Available
Title
New Pd–Pt and Pd–Au catalysts for an efficient synthesis of H2O2 from H2 and O2 under very mild conditions
Abstract

Bimetallic Pd–Pt and Pd–Au samples supported on sulfated zirconia were successfully tested for the direct synthesis of hydrogen peroxide under very mild conditions (1 bar and 293 K) and outside the explosion range. The effect of the addition of Pt to Pd in enhancing the yield of hydrogen peroxide is sensitive to the Pt amount: only using a low Pt content it is possible to improve H2O2 selectivity (from 55% to 70%) and productivity with respect to the monometallic sample. The addition of gold in 1:1 amount to palladium improved both the productivity and even more the selectivity of the process, producing a hydrogen peroxide concentration already useful for industrial applications and maintaining a stable selectivity (62%) after 12 h of time on stream.

Graphical abstractPd–Pt and Pd–Au catalysts over sulfated zirconia are tested for H2O2 direct synthesis at 1 bar, 293 K, outside the explosion range. Activity and selectivity are sensitive to the Pt amount. The best result is obtained with a Pd–Au catalyst, producing a H2O2 concentration already useful for industrial applications and a stable selectivity.Figure optionsDownload full-size imageDownload as PowerPoint slide

Keywords
Hydrogen peroxide synthesis; Hydrogen; Oxygen; Palladium; Platinum; Gold; Sulfated zirconia; Bimetallic catalysts
First Page Preview
New Pd–Pt and Pd–Au catalysts for an efficient synthesis of H2O2 from H2 and O2 under very mild conditions
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 A: General - Volume 358, Issue 2, 1 May 2009, Pages 129–135
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