fulltext.study @t Gmail

Effect of oxide supports on Pd–Ni bimetallic catalysts for 1,3-butadiene hydrogenation

Paper ID Volume ID Publish Year Pages File Format Full-Text
39521 45826 2015 7 PDF Available
Title
Effect of oxide supports on Pd–Ni bimetallic catalysts for 1,3-butadiene hydrogenation
Abstract

•Pd–Ni is more selective for 1,3-butadiene hydrogenation to 1-butene than Pd.•Support nature does not affect 1,3-butadiene hydrogenation activity.•PdNi/γ-Al2O3 is most selective to 1-butene at low 1,3-butadiene conversions.•Support reducibility/oxide defect affect 1-butene selectivity.

Our previous work showed that the Pd–Ni bimetallic catalyst had better hydrogenation activity and 1-butene selectivity in the selective hydrogenation of 1,3-butadiene. In the present work, the effect of oxide supports on the hydrogenation of 1,3-butadiene was studied over Pd–Ni bimetallic catalysts supported on γ-Al2O3, SiO2, CeO2, ZrO2 and TiO2. Transmission electron microscopy (TEM) and extended X-ray absorption fine structure (EXAFS) were used to characterize the particle size and the extent of Pd–Ni bimetallic bond formation, respectively. The support effect affected the bimetallic particle structure, but appeared to have no apparent influence in the hydrogenation activity. All the bimetallic catalysts showed ∼100% selectivity to butenes; however, the supports affected the 1-butene selectivity. PdNi/γ-Al2O3 showed the highest 1-butene selectivity of ∼80% at 1,3-butadiene conversions lower than 50% but decreased rapidly at higher conversion. The different performance of the supports in 1-butene selectivity might be attributed to strong metal-support interaction (SMSI), the oxygen defects and the geometric/electronic effect on the catalysts.

Graphical abstractFigure optionsDownload full-size imageDownload high-quality image (172 K)Download as PowerPoint slide

Keywords
Support effect; Pd–Ni bimetallic catalysts; Selective hydrogenation; 1,3-Butadiene
First Page Preview
Effect of oxide supports on Pd–Ni bimetallic catalysts for 1,3-butadiene hydrogenation
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 490, 25 January 2015, Pages 17–23
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