Journal
NATURE COMMUNICATIONS
Volume 9, Issue -, Pages -Publisher
NATURE RESEARCH
DOI: 10.1038/s41467-018-04023-z
Keywords
-
Categories
Funding
- Air Force Office of Scientific Research through Basic Research Initiative grant [AFOSR FA9550-12-1-0400]
- Institute for Basic Science [IBS-R013-D1]
- Winston Chen Stanford Graduate Fellowship
- Center for Molecular Analysis and Design
- National Science Foundation [ECCS-1542152]
Ask authors/readers for more resources
The synthesis of gold nanostructures has received widespread attention owing to many important applications. We report the accelerated synthesis of gold nanoparticles (AuNPs), as well as the reducing-agent-free and template-free synthesis of gold nanoparticles and nanowires in aerosol microdroplets. At first, the AuNP synthesis are carried out by fusing two aqueous microdroplet streams containing chloroauric acid and sodium borohydride. The AuNPs (similar to 7 nm in diameter) are produced within 60 mu s at the rate of 0.24 nm mu s(-1). Compared to bulk solution, microdroplets enhance the size and the growth rate of AuNPs by factors of about 2.1 and 1.2 x 10(5), respectively. Later, we find that gold nanoparticles and nanowires (similar to 7 nm wide and > 2000 nm long) are also formed in microdroplets in the absence of any added reducing agent, template, or externally applied charge. Thus, water microdroplets not only accelerate the synthesis of AuNPs by orders of magnitude, but they also cause spontaneous formation of gold nanostructures.
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