A New and Easy Method for Making Ni and Cu Microtubules and Their Regularly Assembled Structures

Shin

et al. 2015

Adv Funct Materials

533

417

Stretchable conductive fibers have received significant attention due to their possibility of being utilized in wearable and foldable electronics. Here, highly stretchable conductive fiber composed of silver nanowires (AgNWs) and silver nanoparticles (AgNPs) embedded in a styrene–butadiene–styrene (SBS) elastomeric matrix is fabricated. An AgNW‐embedded SBS fiber is fabricated by a simple wet spinning method. Then, the AgNPs are formed on both the surface and inner region of the AgNW‐embedded fiber via repeated cycles of silver precursor absorption and reduction processes. The AgNW‐embedded conductive fiber exhibits superior initial electrical conductivity (σ0 = 2450 S cm−1) and elongation at break (900% strain) due to the high weight percentage of the conductive fillers and the use of a highly stretchable SBS elastomer matrix. During the stretching, the embedded AgNWs act as conducting bridges between AgNPs, resulting in the preservation of electrical conductivity under high strain (the rate of conductivity degradation, σ/σ0 = 4.4% at 100% strain). The AgNW‐embedded conductive fibers show the strain‐sensing behavior with a broad range of applied tensile strain. The AgNW reinforced highly stretchable conductive fibers can be embedded into a smart glove for detecting sign language by integrating five composite fibers in the glove, which can successfully perceive human motions.

Section: Resultsmentioning

confidence: 99%

Ag Nanowire Reinforced Highly Stretchable Conductive Fibers for Wearable Electronics

Shin

et al. 2015

Adv Funct Materials

533

417

“…This article is confined to inorganic nanotubes (NTs). The chronological list of the first reports of different kinds of nanotubes or rolled-up structures shows the degree of activity in this field: 1992ÐWS 2 ; [2] 1993Ð MoS 2 ; [3] 1995ÐBN, [4] SiO 2 ; [5] 1998ÐTiO 2 , [6] VO x , [7] NiCl 2 ; [8] 2000ÐNbSe 2 , [9] Au, [10] Co and Fe; [11] 2001ÐCdS, [12] CdSe, [13] ZnS, [14] NiS, [15] Cu 5.5 FeS 6.5 , [16] Al 2 O 3 , [17] In 2 O 3 and Ga 2 O 3 , [18] GaN; [19] 2002ÐZrS 2 and HfS 2 , [20] NbS 2 and TaS 2 , [21] (Er, Tm, Yb, Lu) oxide, [22] ZnO, [23] BaTiO 3 and PbTiO 3 , [24] Cu and Ni, [25] Te, [26] ReS 2 , [27] silicon nanotubes, [28] etc.…”

Section: Introductionmentioning

confidence: 99%

Inorganic Nanotubes

Remškar¹

2004

Advanced Materials

360

244

Since the first report on the synthesis of inorganic WS2 nanotubes in 1992, the number of articles on the successful growth of different inorganic nanotubes has increased rapidly, emphasizing the importance of this field for nanotechnology. Although there are some geometrical similarities to carbon nanotubes, inorganic nanotubes are distinguished by important peculiarities, from their growth mechanisms to the physical and chemical properties that are attractive for potential applications. Their structural properties, which are important for such applications, are discussed in this review.

“…Ni and Co microtubules were prepared by Han et al [23] by the pyrolysis of composite fibers consisting of a poly(ethylenetetraphthalate) (PET) core fiber with the electroless-plated metal at the exterior. Ni microtubules prepared by this method were single-crystalline, but the Cu microtubules were polycrystalline.…”

Section: Reviewmentioning

confidence: 99%

Synthesis of Inorganic Nanotubes

2009

Nanotubes constitute an exciting class of one‐dimensional nanomaterials of which carbon nanotubes are recognized widely as materials of importance. The possibility of having inorganic nanotubes was recognized early in the 1990s, accompanied by the report of nanotubes of MoS2 and WS2. Since then, nanotubes of several inorganic materials have been prepared and characterized. While nanotubes of metal chalcogenides and oxides form a high proportion of the inorganic nanotubes investigated hither to, nanotubes of many other materials have also been prepared and characterized. Several synthetic strategies including both physical and chemical methods have been employed, of which the use of templates, precursors, and hydro‐ or solvothermal methods are prominent. In this article, we shall present a brief account of the present status of the synthesis of nanotubes of elemental materials as well as binary and complex metal oxides, chalcogenides, pnictides and carbides.