fulltext.study @t Gmail

Effects of Si- and Y-modified nanocrystalline zirconia on the properties of Co/ZrO2 catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
53165 46917 2006 7 PDF Available
Title
Effects of Si- and Y-modified nanocrystalline zirconia on the properties of Co/ZrO2 catalysts
Abstract

Nanocrystalline zirconia and m-modified zirconia (m = Si and Y) have been prepared by the modified Pechini’s method and employed as supports for cobalt catalysts. Addition of a small amount of Si or Y during the preparation of nanocrystalline zirconia did not alter the average crystallite sizes and BET surface areas of the tetragonal zirconia. However, zirconia primary particles appeared to be more agglomerated when Si/Zr and Y/Zr were greater than 0.005 and 0.01, respectively. The Si- and Y-modified zirconia supported cobalt catalysts with higher m/Zr showed higher H2 chemisorption and CO hydrogenation activities.

Keywords
Nanocrystalline zirconia; Y-modified ZrO2; Si-modified ZrO2; CO hydrogenation; Cobalt catalyst
First Page Preview
Effects of Si- and Y-modified nanocrystalline zirconia on the properties of Co/ZrO2 catalysts
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 7, Issue 10, October 2006, Pages 761–767
Authors
, , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis