Mesoporous, self-assembled palladium nanospheres: High efficiency activator for electroless nickel deposition

Mesoporous, self-assembled Pd nanopsheres have been prepared in the organized micellar template, sodium n-dodecyl sulfate (SDS), of which electrostatic regulation was adjusted by adding H + ions. In this study, the diameter of self-assembled nanospheres can be controlled from ∼41.5 to ∼56.2 nm by th...

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Bibliographic Details
Published in:Electrochemistry communications 2006-05, Vol.8 (5), p.697-702
Main Authors: Lee, Chien-Liang, Kuo, Li-Chen, Huang, Yu-Ching, Yen, Yee-Wen
Format: Article
Language:English
Subjects:
Activator
Chemistry
Electrochemistry
Electrodeposition
Electroless nickel deposition
Exact sciences and technology
General and physical chemistry
Kinetics
Mixed-potential theory
Nanoparticle
Palladium
Study of interfaces
Surface modification
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Summary:Mesoporous, self-assembled Pd nanopsheres have been prepared in the organized micellar template, sodium n-dodecyl sulfate (SDS), of which electrostatic regulation was adjusted by adding H + ions. In this study, the diameter of self-assembled nanospheres can be controlled from ∼41.5 to ∼56.2 nm by the concentration of palladium ions added. As supported by the analysis of quartz crystal microgravimetry (QCM) and mixed potential theory, the mesoporous nanospheres can be successfully used as activators and have the excellent activity for electroless nickel–phosphorous depositions (EN pD). A comparison of deposition rate with a system of Pd nanospheres, the Pd nanosphere with small size was found to exhibit maximum activity toward oxidation of NaH 2PO 2, reducing agent of EN pD.
ISSN:1388-2481
1873-1902
DOI:10.1016/j.elecom.2006.02.023