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Last edited by WorkBot
January 24, 2010 | History

Synthesis, properties, and applications of nanoporous metals 1 edition

Synthesis, properties, and applications of nanoporous metals
Liang-Wen (Larry) Lee

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Synthesis, properties, and applications of nanoporous metals.

Published 2006 .
Written in English.

About the Book

De-alloying, an anodic dissolution of less noble atoms from an alloy, produces peculiar metallic nanostructures possessing highly curved, nanoscale pores densely interconnected in the de-alloyed layer. A novel, near-bulk electrodeposition of metallic nanoparticles in these nanoscale cavities at potentials slightly above metal ion/metal equilibrium voltages is demonstrated as feasible in this work; "sub-potential deposition (SPD)" or "curvature-driven deposition (CDD)" is used to distinguish this newly discovered phenomenon from ordinary monolayer under-potential depositions (UPD) in electrochemistry. Electrochemical impedance spectroscopy (EIS) measurements show capacitance changes before and after inoculating foreign metallic atoms into de-alloyed layers, indicating the remaining connectivity of nanoporosity, which is consistent with the coulometry analysis revealing partial re-filling of nanoscale cavities by SPD. Capacitance obtained by EIS is applied to estimate pore sizes of de-alloyed Cu-Pt layers whose morphology is examined by scanning electron microscopy (SEM). X-ray diffraction (XRD) for de-alloyed Cu-Pt layers inoculated with copper is also investigated.

Edition Notes

Source: Masters Abstracts International, Volume: 44-06, page: 2883.

Thesis (M.A.Sc.)--University of Toronto, 2006.

Electronic version licensed for access by U. of T. users.

ROBARTS MICROTEXT copy on microfiche.

The Physical Object

Pagination
116 leaves.
Number of pages
116

ID Numbers

Open Library
OL19214658M
ISBN 13
9780494160763

History Created December 11, 2009 · 2 revisions Download catalog record: RDF / JSON

January 24, 2010 Edited by WorkBot add more information to works
December 11, 2009 Created by WorkBot add works page