Heat-Controlled Size Evolution of Dodecanethiol-Protected Au Nanoparticles in the Solid State

Nanomaterials ◽  
2019 ◽  
Vol 9 (9) ◽  
pp. 1325
Author(s):  
Pengfei Hu ◽  
Chen Xie ◽  
Zhihui Mao ◽  
Xue Liang

The assistances of sodium dodecyl benzene sulfonate (SDBS) and aging treatment were introduced to further improve the room-temperature mechanochemical synthesis of the quantum-sized zinc sulfide (ZnS) nanocrystals. As a result, a green strategy for synthesizing the monodisperse nanocrystals with tunable size and crystallinity was developed, holding convenient, highly efficient and low pollution. Size evolution shows a gradually increasing trend along the aging-temperature. A model that the independent reaction cells constructed by SDBS-wrapped reactant packages (solid state vesicles, SSVs) for the confined growth of ZnS nanocrystals was proposed to access the formation mechanism of ZnS quantized crystal in a solid-state synthesis system. The band gaps and band-edge luminescent emissions of as-prepared ZnS nanocrystals experienced the size-dependent quantum confinement effect, while the trap-state emissions exhibited the lattice integrity-dependence. Furthermore, ZnS quantum-sized nanocrystals with narrower size distribution can be obtained by a batch-sorting process through adjusting the centrifugal speed.


Nano Letters ◽  
2015 ◽  
Vol 16 (1) ◽  
pp. 40-47 ◽  
Author(s):  
Qiying Lv ◽  
Shang Wang ◽  
Hongyu Sun ◽  
Jun Luo ◽  
Jian Xiao ◽  
...  

2019 ◽  
Vol 1226 ◽  
pp. 012014
Author(s):  
M Magnozzi ◽  
M Ferrera ◽  
M Canepa ◽  
F Bisio
Keyword(s):  

2009 ◽  
Vol 24 (2) ◽  
pp. 301-304 ◽  
Author(s):  
Masataka Hakamada ◽  
Mamoru Mabuchi

The thermal coarsening of nanoporous Au was examined and compared with the thermal instability of Au nanoparticles. The nanoporous Au was coarsened at temperatures far below the melting temperature of Au nanoparticles, which possess sizes similar to the nanoligaments. Differential scanning calorimetry characterization of nanoporous Au exhibited an exothermal peak around 470 K. These results suggest that solid-state process like recrystallization, rather than melting, is responsible for the thermal coarsening of nanoporous Au.


ChemInform ◽  
2010 ◽  
Vol 42 (3) ◽  
pp. no-no
Author(s):  
Carlos Diaz ◽  
Maria Luisa Valenzuela
Keyword(s):  

2001 ◽  
Vol 13 (22) ◽  
pp. 1699-1701 ◽  
Author(s):  
T. Teranishi ◽  
S. Hasegawa ◽  
T. Shimizu ◽  
M. Miyake

Author(s):  
Erlandy Dwinanto Toe ◽  
Winarto Kurniawan ◽  
Eden M. Andrews ◽  
Kiyohiko Nakasaki ◽  
Hirofumi Hinode ◽  
...  

2003 ◽  
Vol 107 (12) ◽  
pp. 2719-2724 ◽  
Author(s):  
Takami Shimizu ◽  
Toshiharu Teranishi ◽  
Satoshi Hasegawa ◽  
Mikio Miyake

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