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Size-Controlled Synthesis of Machinable Single Crystalline Gold Nanoplates
- Source :
- Chemistry of Materials. 17:5558-5561
- Publication Year :
- 2005
- Publisher :
- American Chemical Society (ACS), 2005.
-
Abstract
- Monodispersive size-controlled gold nanoplates were synthesized with high purity from the reduction of hydrogen tetrachloroaurate by reduced amount of sodium citrate, which kinetically controls the reaction pathway, in the presence of poly(vinyl pyrrolidone) (PVP). With the insufficient addition of the reductant, the molar ratio of sodium citrate and PVP relative to hydrogen tetrachloroaurate played an important role in determining the geometric shape and size of the product. These nanoplates were single crystals with planar width of 80−500 nm and thickness of 10−40 nm, exhibiting strong surface plasmon absorption in the near-infrared (NIR) region of 700−2000 nm. The gold nanoplates were used as the synthetically provided nanoblocks to fabricate single-crystalline nanocomponents, such as a nanoscaled gear or a nanoscaled letter.
- Subjects :
- Materials science
Hydrogen
General Chemical Engineering
Surface plasmon
technology, industry, and agriculture
chemistry.chemical_element
Nanotechnology
General Chemistry
chemistry.chemical_compound
chemistry
Chemical engineering
Molar ratio
Sodium citrate
Materials Chemistry
Absorption (chemistry)
Subjects
Details
- ISSN :
- 15205002 and 08974756
- Volume :
- 17
- Database :
- OpenAIRE
- Journal :
- Chemistry of Materials
- Accession number :
- edsair.doi...........3c8c9d512aa0f083976db5d0273cfa20