A Simple Hydrothermal Route to Large‐Scale Synthesis of Uniform Silver Nanowires

Abstract

This paper describes the preparation of uniform silver nanowires by reducing freshly prepared silver chloride with glucose at 180 degrees C for 18 hours in the absence of any surfactants or polymers. Scanning electron microscopy studies indicated that the silver nanowires are about 100 nm in diameter and up to 500 microm in length. High-resolution transmission electron microscopy analyses showed that the silver nanowires grow perpendicularly to the Ag(200) plane. The silver nanowires are believed to grow through a solid-solution-solid process. Some influential factors on the growth of silver nanowires are also discussed.

Microwave-assisted synthesis and characterization of silver nanowires by polyol process

“…The broad peak centered at 400 nm in the as-prepared sample is attributed to the transverse plasmon excitation of silver nanowires. The shoulder peak at 352 nm is attributed to the plasmon response of bulk silver which is commonly observed for silver nanowires (Gao et al 2005a;Korte et al 2008;Wang et al 2005;Sun et al 2002b). Figure 7 shows the FTIR spectra of silver nanowires with absorption peak located at around 1,291 cm -1 which can be assigned to the stretching vibration of -C-N-.…”

Facile Synthesis of Highly Efficient One-Dimensional Plasmonic Photocatalysts through Ag@Cu2O Core–Shell Heteronanowires

“…The pure Ag NWs exhibit two absorbance peaks at 350 and 385 nm. The peak at 350 nm could be attributed to the longitudinal mode of nanowires similar to that of bulk Ag 38,47,48 or the out-of-plane quadrupole resonance of Ag NWs. [49][50][51] The peak at 385 nm is assigned to the transverse plasmon resonance of Ag NWs.…”

“…[49][50][51] The peak at 385 nm is assigned to the transverse plasmon resonance of Ag NWs. 38,47,48 Upon the formation of Cu 2 O shell, the transverse plasmon resonance of the Ag core is significantly red-shifted from 385 nm to 515 nm, due to the higher refractive index of Cu 2 O (~2.7 at wavelengths above 600 nm) 43,[52][53] than ethanol (~1.359) 27,38 and its high dielectric constant (e=7.2). 43,52,54 Their broad absorbance from visible to UV window is crucial for full use of sunlight.…”

Self-assembly and alignment of semiconductor nanoparticles on cellulose nanocrystals

“…We propose that CTAB acts as a nanoparticle stabilizer inside its micellar core, a role previously reported in literature, but the exact mechanism of the stabilization process is not completely understood [20,21]. The CMC of CTAB is 1.0 mM [33]. Below CMC, CTAB forms individual micelles, while above this concentration the CTAB micelles self-associate into nanorod-like structures.…”