fulltext.study @t Gmail

Preparation of chlorine-free alumina-supported ruthenium catalyst for ammonia synthesis base on RuCl3 by hydrazine reduction

Paper ID Volume ID Publish Year Pages File Format Full-Text
52595 46877 2007 5 PDF Available
Title
Preparation of chlorine-free alumina-supported ruthenium catalyst for ammonia synthesis base on RuCl3 by hydrazine reduction
Abstract

A series of Ru/Al2O3 catalysts for ammonia synthesis were prepared by hydrazine reduction of RuCl3 in KOH solution under the mild conditions, and characterized by XRF, TEM and CO chemisorption. The results showed that no chloride remained on the catalysts obtained by hydrazine reduction and the activities of the catalysts with hydrazine treatment were higher than those of conventional hydrogen-reduced catalysts. The particles sizes and the activities of the catalysts were determined by the molar ratios between hydrazine and ruthenium. The most promising catalyst was obtained when the hydrazine/ruthenium ratio was in the range of 1–3.

Keywords
Chlorine-free; Ru; Ammonia synthesis; Hydrazine reduction; Supported catalysts
First Page Preview
Preparation of chlorine-free alumina-supported ruthenium catalyst for ammonia synthesis base on RuCl3 by hydrazine reduction
Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 8, Issue 11, November 2007, Pages 1838–1842
Authors
, , , , , ,
Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis