Gold Nanowire-Network Structure Prepared from Metallic Gold Nanowires Deposited in Polycarbonate Template Membrane

2007 ◽  
Vol 124-126 ◽  
pp. 1729-1732 ◽  
Author(s):  
Ju Yong Jung ◽  
Youn Su Kim ◽  
Hee Sang Shim ◽  
Won Bae Kim
Keyword(s):  
Network Structure ◽  
Pore Diameter ◽  
Synthesis Method ◽  
Metal Nanowires ◽  
Gold Nanowires ◽  
Nanowire Network ◽  
Polycarbonate Template ◽  
Template Synthesis Method ◽  
Track Etched Membrane ◽  
Gold Metal

A network structure of gold nanowires was prepared from a template synthesis method, in which gold metal nanowires were first deposited into a polycarbonate track-etched membrane with pore diameter of 100 or 220 nm via auto-catalytic deposition (i.e., electroless deposition), followed by thermal treatment to remove the polycarbonate template membrane.

Template growth of perovskites on yarn fibers induced by capillarity for flexible photoelectric applications

2019 ◽  
Vol 7 (31) ◽  
pp. 9496-9503 ◽  
Author(s):  
Dong Ding ◽  
Henan Li ◽  
Huizhen Yao ◽  
Lai Liu ◽  
Bingbing Tian ◽  
...  
Keyword(s):  
Template Synthesis ◽  
Synthesis Method ◽  
Capillary Effect ◽  
Perovskite Materials ◽  
Template Synthesis Method

“Quasi-spring” network structured perovskite materials were fabricated by a capillary effect driven template synthesis method for flexible photoelectric applications.

scholarly journals Fabrication of Numerous Ferromagnetic Metal Nanowires Using Electrodeposition Technique

2010 ◽  
Vol 654-656 ◽  
pp. 1724-1727
Author(s):  
Takeshi Ohgai ◽  
Takafumi Fujimaru ◽  
Keizo Takao ◽  
Akio Kagawa
Keyword(s):  
Coercive Force ◽  
Pore Diameter ◽  
Magnetic Hysteresis ◽  
Hysteresis Loops ◽  
Metal Nanowires ◽  
Electrodeposition Technique ◽  
Nanoporous Template ◽  
Magnetic Hysteresis Loops ◽  
Fe Alloys ◽  
Co Nanowires

To synthesize an array of numerous ferromagnetic nanowires, iron-group metals such as Ni, Co, Fe, Ni-Fe and Co-Fe alloys were electrodeposited from aqueous solution into a nanoporous template with numerical cylindrical nanochannels . The shape of nanowires was precisely transferred from the nanochannel template and the aspect ratio reached to around 150. Magnetic hysteresis loops revealed that Ni, Co and Fe nanowires were spontaneously magnetized to the long axis direction. Coercive force of the nanowires with 6000 nm in length was increased in decreasing the pore-diameter. The coercive force of Co nanowires with 40 nm in diameter has increased up to 1084 Oe.

SYNTHESIS AND MICROSTRUCTURE OF A NOVEL TiO2 AEROGEL–TiO2 NANOWIRE COMPOSITE

NANO ◽  
2008 ◽  
Vol 03 (05) ◽  
pp. 373-379 ◽  
Author(s):  
YOSHIKAZU SUZUKI ◽  
MARIE-HÉLÈNE BERGER ◽  
DANIELA D'ELIA ◽  
PIERRE ILBIZIAN ◽  
CHRISTIAN BEAUGER ◽  
...  
Keyword(s):  
Surface Area ◽  
Network Structure ◽  
Sol Gel ◽  
Hydrothermal Process ◽  
Supercritical Drying ◽  
Large Surface Area ◽  
Tem Analysis ◽  
Tio2 Nanowire ◽  
Nanowire Network ◽  
Gel Technique

TiO 2 aerogel–10 mol% TiO 2 nanowire composite was prepared by a sol–gel technique with the addition of TiO 2 nanowires to TiO 2 sol, followed by supercritical drying in CO 2. TiO 2 nanowires (anatase with minor rutile phases) as dispersoid were prepared by a hydrothermal process followed by calcination in air at 600°C. The TiO 2 nanowires were dispersed in a 2-propanol/ H 2 O / HNO 3 solution, and the mixture was added drop by drop to a tetrabutyl orthotitanate [i.e. Ti (IV) n-butoxide] solution in 2-propanol. After gelation, the TiO 2 alcogel– TiO 2 nanowire composite was dried in supercritical CO 2 to obtain the final, TiO 2 aerogel– TiO 2 nanowire composite. TEM analysis revealed that a unique "nanowire network" structure was formed within the mesoporous aerogel matrix. The aerogel– TiO 2 nanowire composite had a relatively large surface area 427 m2/g, with mesopores ~ 16 nm in diameter and a pore of volume of 1.63 cm3/g.

Performance Optimization of Nanotubes Prepared by a Template Synthesis Method

2012 ◽  
Vol 557-559 ◽  
pp. 632-638
Author(s):  
Hua Jing Zheng ◽  
Shi Jun Cheng ◽  
Ya Dong Jiang ◽  
Jian Hua Xu
Keyword(s):  
Contact Resistance ◽  
Polymer Solution ◽  
Template Synthesis ◽  
Performance Optimization ◽  
Synthesis Method ◽  
Second Step ◽  
Pedot Chain ◽  
Template Synthesis Method

PEDOT nanotubes were prepared by a template synthesis method. Based on our template, it was deduced that there are two successive processes in the formation of nanotubes. The first step is soakage of the porous templates by a polymer solution, and the second step is adsorption of free charged cationic groups and doped PEDOT onto the template surface with negative charges. XRD results showed that well orientated PEDOT chain were formed during the synthesis, moreover the arrange conductivity of molecular chains strongly affect the structures of PEDOT nanotubes. The nanotubes were measured to be about 5.5~17.6 S/cm, which is higher than that of nanotube pellet due to the high contact resistance between the adjacent nanotubes.

scholarly journals Dealloying of gold–copper alloy nanowires: From hillocks to ring-shaped nanopores

2016 ◽  
Vol 7 ◽  
pp. 1361-1367 ◽  
Author(s):  
Adrien Chauvin ◽  
Cyril Delacôte ◽  
Mohammed Boujtita ◽  
Benoit Angleraud ◽  
Junjun Ding ◽  
...  
Keyword(s):  
Copper Alloy ◽  
Surface Defects ◽  
Complex Surface ◽  
Metal Nanowires ◽  
Gold Nanowires ◽  
Porous Gold ◽  
Gold Silver ◽  
Nodular Growth ◽  
Alloy Nanowires ◽  
High Roughness

We report on a novel fabrication approach of metal nanowires with complex surface. Taking advantage of nodular growth triggered by the presence of surface defects created intentionally on the substrate as well as the high tilt angle between the magnetron source axis and the normal to the substrate, metal nanowires containing hillocks emerging out of the surface can be created. The approach is demonstrated for several metals and alloys including gold, copper, silver, gold–copper and gold–silver. We demonstrate that applying an electrochemical dealloying process to the gold–copper alloy nanowire arrays allows for transforming the hillocks into ring-like shaped nanopores. The resulting porous gold nanowires exhibit a very high roughness and high specific surface making of them a promising candidate for the development of SERS-based sensors.

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