Convenient synthesis of silver nanowires with adjustable diameters via a solvothermal method.
Silver nanowires have been successfully synthesized via a simple solvothermal method by adding sodium sulfide (Na(2)S) into the solution. The Ag(2)S colloids produced in the initial stage help reduce the concentration of free Ag(+) ions in the initial formation of silver seeds and subsequently release Ag(+) ions to the solution. Otherwise, there is no oxidative etching owing to the absence of oxygen. In these cases, silver nanowires are grown preferentially. Furthermore, silver nanowires with adjustable diameters can be obtained by adjusting the concentration of Na(2)S. Electron microscopy, X-ray diffraction, and absorption spectra have been used to investigate the products, and a mechanism is proposed to interpret the controlled synthesis of silver nanowires. Finally, our results indicate that this approach provides a versatile route to prepare silver nanowires with controllable diameters.
Chen
Dapeng
D
State Key Laboratory of Plastic Forming Simulation and Die and Mould Technology, Huazhong University of Science and Technology, Wuhan, 430074 Hubei, People's Republic of China.
Qiao
Xueliang
X
Qiu
Xiaolin
X
Chen
Jianguo
J
Jiang
Renzhi
R
D003102:Colloids / Q000138:chemical synthesis / Q000737:chemistry; D053768:Metal Nanoparticles / Q000737:chemistry*; D010316:Particle Size; D012834:Silver / Q000737:chemistry*; D012996:Solutions; D013440:Sulfides / Q000737:chemistry*; D013499:Surface Properties; D013696:Temperature
D003102:Colloids; D012996:Solutions; D013440:Sulfides; D012834:Silver; C033479:sodium sulfide