Journal
NANOTECHNOLOGY
Volume 17, Issue 18, Pages 4689-4694Publisher
IOP PUBLISHING LTD
DOI: 10.1088/0957-4484/17/18/027
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A novel and facile chemical synthesis of highly faceted multiply twinned gold nanocrystals is reported. The gold nanocrystals are hexagonal in transmission electron microscopy and icosahedral in scanning electron microscopy. Phosphotungstic acid (PTA), which was previously reduced, serves as a reductant and stabilizer for the synthesis of gold nanocrystals. The PTA-gold nanocomposites are quite stable in aqueous solutions, and electrochemically active towards the hydrogen evolution reaction.
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