Journal
ACS NANO
Volume 8, Issue 6, Pages 5953-5958Publisher
AMER CHEMICAL SOC
DOI: 10.1021/nn501086k
Keywords
crystal growth; high-index facets; gold; convex nanocrystals; electrochemiluminescence; palladium
Categories
Funding
- National Natural Science Foundation of China [21175126]
- Changchun Institute of Applied Chemistry
- Chinese Academy of Sciences
Ask authors/readers for more resources
Convex hexoctahedral nanocrystals have been synthesized through fast growth kinetics and the use of cetylpyridinium chloride as a capping agent. Monodisperse convex hexoctahedral Pd@Au core-shell nanocrystals with {431} high-index facets are obtained at high reaction rates by using high concentrations of ascorbic acid in the presence of cetylpyridinium chloride. In contrast, octahedral nanocrystals with {1111 low-index facets and their {100}-truncated counterparts are formed at low ascorbic acid concentrations. The substitute of cetylpyridinium chloride with cetyltrimethylammonium chloride leads to the generation of concave trisoctahedral Pd@Au core-shell nanocrystals with {331} high-index facets, indicating that cetylpyridinium plays an important role in the formation of convex hexoctahedral nanocrystals. The as-prepared convex hexoctahedral Pd@Au core-shell nanocrystals exhibit remarkable catalytic performances toward electrochemiluminescence compared with truncated octahedral and concave trisoctahedral Pd@Au core shell nanocrystals.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available