Journal
ADVANCED MATERIALS
Volume 25, Issue 14, Pages 2045-2050Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/adma.201204920
Keywords
silver; nanoparticle arrays; bimetallic nanoparticles; oxidation-resistance; surface plasmons
Categories
Funding
- Sustainable Energy Education and Research Center, Center for Materials Processing
- NSF [CMMI-0855949, ECCS-0850574]
- Center for Nanophase Materials Science [CNMS2011-R78]
- ORNL by the Scientific User Facilities Division, Office of Basic Energy Sciences, U.S. Department of Energy
- Directorate For Engineering
- Div Of Electrical, Commun & Cyber Sys [0801774] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0855949] Funding Source: National Science Foundation
- Div Of Civil, Mechanical, & Manufact Inn
- Directorate For Engineering [0757547] Funding Source: National Science Foundation
- EPSCoR
- Office Of The Director [1004083] Funding Source: National Science Foundation
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Reduced degradation (oxidation) of silver nanoparticles (NPs) is achieved by contacting Ag with immiscible Co NPs. The relative decay of the plasmon peak (plot) shows that pure Ag NPs (blue dashed curve) decay by 25% in ca 20 days, whereas AgCo NPs last about 10 times longer, requiring nearly five months for a similar decay (red solid curve). The TEM images for both Ag and AgCo were taken after 50 days of storage under ambient conditions.
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