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022 _a09743626
040 _aMSU
_bEnglish
_cMSU
_erda
050 0 0 _aQD31 JOU
100 1 _aBera, Raj Kumar
_eauthor
245 1 0 _aFacile growth of multi twined Au nanostructures /
_ccreated by Raj Kumar Bera, Asim Bhaumik andC Retna Raj
264 1 _aBangalore :
_bSprinter,
_c2016.
336 _2rdacontent
_atext
_btxt
337 _2rdamedia
_aunmediated
_bn
338 _2rdacarrier
_avolume
_bnc
440 _aJournal of chemical sciences
_vVolume 127, number 12,
520 3 _aWe describe a facile growth of chain-like Au nanostructures and their spontaneous transformation to multi-twined nanostructure using a mild reducing agent bisphenol A (BPA). The growth Au nanostructures involves the chemical reduction of HAuCl4 by BPA in the presence of cetyltrimethylammonium bromide (CTAB) as capping agent in alkaline condition without any seeds. Wire and chain-like Au nano-network structures with diameter in the range of 4 to 9 nm are obtained in the initial stage of the reaction. These chain-like nanostructures undergo spontaneous transformation into multi-twined nanostructures within 24 h. These nanocrystalline multi-twined structures have an average size of 80-90 nm. X-ray and selected area electron diffraction measurements reveal that the Au nanoparticles have (111), (200), (220) and (311) planes of a face centered cubic structure. High resolution transmission electron microscopic measurement shows that the nanostructures are mainly composed of (111) lattice plane with twin boundaries. The concentration of HAuCl4, BPA and CTAB has pronounced effect in the growth of nanostructures. The multi-twined nanostructures are highly stable at room temperature over a period of one month and can be used for catalytic applications.
650 _aBisphenol A
_vChain-like Au nano-network
_xSpontaneous transformation
700 1 _aBhaumik, Asim
_eco author
700 1 _aRaj, C Retna
_eco author
856 _uhttps://doi.org/10.1007/s12039-015-0989-5
942 _2lcc
_cJA
999 _c169398
_d169398