Surface metallization of cenospheres and precipitators by electroless plating--颗粒学报PARTICUOLOGY

Cai, C., Shen, Z., Wang, M., Ma, S., & Xing, Y. (2003). Surface metallization of cenospheres and precipitators by electroless plating. China Particuology, 1(4), 156-161. https://doi.org/10.1016/S1672-2515(07)60133-X

Surface metallization of cenospheres and precipitators by electroless plating

Chujiang Cai, Zhigang Shen ^*, Mingzhu Wang, Shulin Ma, Yushan Xing

Beijing Key Laboratory for Powder Technology Research and Development, Beijing University of Aeronautics and Astronautics, Beijing 100083, P. R. China

10.1016/S1672-2515(07)60133-X

Volume 1, Issue 4, September 2003, Pages 156-161

Received 14 February 2003, Accepted 22 June 2003, Available online 27 November 2007.

E-mail: szgjfc@263.net

Highlights

Abstract

This paper reports the use of a colloidal Pd⁰ catalysis system to metallize the surface of precipitators separated from coal fly-ash, and metals such as Cu, Ni etc. are deposited on the precipitators surface. Alternatively, according to the characteristic surface of cenospheres, an Ag coating catalysis system is adopted to first deposit Ag on the cenospheres surface, followed, if necessary, by the deposition of other metals such as Cu, Ni, etc. on the Ag coating to produce monolayer and multilayer metal-coated cenospheres. The surface characteristics and the morphologies of the metal coatings are examined in detail with scanning electron microscopy (SEM), energy dispersive spectroscopy (EDX) and X-ray photoelectron spectroscopy (XPS) techniques. It can be shown that the quality of metal coatings derived from the Ag coating catalysis system, is better than that of the colloidal Pd⁰ catalysis system.

Graphical abstract

Keywords

electroless plating; precipitator; cenosphere; metal coating

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