Linked Life Data

17914476

Source:http://linkedlifedata.com/resource/pubmed/id/17914476

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
39
pubmed:dateCreated
2007-10-4
pubmed:abstractText
In this contribution, the formation and immobilisation of chromium(iii) hydroxyoxide colloids is investigated. Nano-sized Cr(iii) colloids are generated in situ upon reduction of Cr(vi), dosed to a stirred reactor. The growth of the elementary colloids by the consumption of solved Cr is kinetically unfavorable compared to their aggregation to larger secondary particles, the size of which depends on the concentration of the building block colloids. This aggregation process can be steered by simple process parameters such as dosing rate and concentration of the Cr(vi). The Cr(iii) colloids are immobilised in situ on a support material via precipitation chromatography. Upon drying, the initially amorphose hydroxyoxides are gradually transformed into crystalline Cr(2)O(3) nanoparticles, mainly located at the external surface of the support. This approach opens new opportunities for the synthesis of supported metal oxide catalysts.
pubmed:language
eng
pubmed:journal
pubmed:status
PubMed-not-MEDLINE
pubmed:month
Oct
pubmed:issn
1463-9076
pubmed:author
pubmed:issnType
Print
pubmed:day
21
pubmed:volume
9
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
5382-6
pubmed:year
2007
pubmed:articleTitle
Silica-supported chromium oxide: colloids as building blocks.
pubmed:affiliation
Centre for Surface Chemistry and Catalysis, K.U.Leuven, Kasteelpark Arenberg 23, B-3001, Heverlee, Belgium. ive.hermans@biw.kuleuven.be
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't