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HomeMaterials Science ForumMaterials Science Forum Vol. 850Synthesis and Characterization of High Purity...

Synthesis and Characterization of High Purity Ruthenium Sponge

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Abstract:

Ruthenium is widely used as catalyst, magnetic recording and electrode materials. In this study, high-purity (≥99.995 wt%) ruthenium sponge was synthesized from crude ruthenium (≤99.9 wt%) by chemical refining technique. Initially, crude Ru was transformed into H₂RuCl₆ by distilling treatment. The H₂RuCl₆ was, then, added with NH4Cl powder to precipitate (NH₄)₂RuCl₆ powder. Afterward, the (NH₄)₂RuCl₆ powder was ignited in air and transformed into RuO₂. Finally, RuO₂ was changed to Ru by hydrogen reduction method. Impurities included in the starting Ru powder were eliminated after distillation and precipitation treatments. As-obtained ruthenium particles were spherical-like agglomeration, the average size was about 6 μm and the powder density was 11.83 g/cm³. The details of chemical transforming mechanisms in the refining process were described.

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Periodical:

Materials Science Forum (Volume 850)

Pages:

489-493

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.850.489

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Online since:

March 2016

Authors:

Wei Yi, Ze Na Xin, Yue Sheng, Zhi Long Tan, Jun Min Zhang, Chuan Jun Wang, Jun Bi, Ming Wen, Wei Ming Guan

Keywords:

Chemical Refining, Chemical Transforming Mechanisms, High-Purity, Impurities, Ruthenium

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© 2016 Trans Tech Publications Ltd. All Rights Reserved

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