Anomalous Oxidation Resistance of "Core-Only" Copper Nanoparticles Electrochemically Grown on Gold Nanoislands Prefunctionalized by 1,4-phenylene Diisocyanide

Title
Anomalous Oxidation Resistance of "Core-Only" Copper Nanoparticles Electrochemically Grown on Gold Nanoislands Prefunctionalized by 1,4-phenylene Diisocyanide
Author(s)
손영구프라드한[프라드한]자오[자오]리융[리융]
Keywords
SELF-ASSEMBLED MONOLAYERS; ELECTRONIC-STRUCTURE; AU-AG; BIMETALLIC NANOPARTICLES; HETEROGENEOUS CATALYSIS; METAL NANOPARTICLES; ALLOY; SURFACE; CU3AU; DEPOSITION
Issue Date
201202
Publisher
ELECTROCHEMICAL SOC INC
Citation
ELECTROCHEMICAL AND SOLID STATE LETTERS, v.15, no.4, pp.K35 - K39
Abstract
Copper was electrodeposited on bare and pre-functionalized Au nanoislands with 1,4-phenylene diisocyanide (PDI, C-=N+-C6H4-N+ C-), on a Si(100) substrate. The electrodeposited Cu nanoparticles on bare Au nanoislands are found to consist of a Cu core and a Cu2O shell with a CuO overlayer. For Cu nanoparticles electrodeposited on Au nanoislands pre-functionalized with PDI, the metallic Cu core is covered by a barely detectable Cu2O overlayer, without any evidence of the CuO shell. PDI-functionalization of the Au nanoislands could be used to suppress the Cu oxidation and significantly alter the interfacial electronic nature of Cu on PDI-functionalized Au nanoislands. (C) 2012 The Electrochemical Society. [DOI: 10.1149/2.006205esl] All rights reserved.
URI
http://hdl.handle.net/YU.REPOSITORY/29920http://dx.doi.org/10.1149/2.006205esl
ISSN
1099-0062
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이과대학 > 화학생화학부 > Articles
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