Silicon Nanotubes

Sha, Jingquan; Niu, Junjie; Ma, Xin; Xu, Jin; Zhang, X.; Yang, Qing; Yang, Dachi

doi:10.1002/1521-4095(20020903)14:17<1219::aid-adma1219>3.0.co;2-t

Cited by 308 publications

(200 citation statements)

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“…In 2002, the nanotube structure of silicon was firstly synthesized by Sha et al through an anodized alumina with nanochannel template assisted method. Silane gas was decomposed by chemical vapor deposition (CVD) method and deposited on the surface of nanochannels of the anodized alumina [81]. Later, multiple silicon nanotubes fabricated by template assisted methods were reported and applied for lithium ion battery.…”

Section: Template Assisted Synthesis Of Silicon Nanotubesmentioning

confidence: 99%

Recent Progress in Synthesis and Application of Low-Dimensional Silicon Based Anode Material for Lithium Ion Battery

Sun

Liu

Zhu

2017

Journal of Nanomaterials

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Silicon is regarded as the next generation anode material for LIBs with its ultra-high theoretical capacity and abundance. Nevertheless, the severe capacity degradation resulting from the huge volume change and accumulative solid-electrolyte interphase (SEI) formation hinders the silicon based anode material for further practical applications. Hence, a variety of methods have been applied to enhance electrochemical performances in terms of the electrochemical stability and rate performance of the silicon anodes such as designing nanostructured Si, combining with carbonaceous material, exploring multifunctional polymer binders, and developing artificial SEI layers. Silicon anodes with low-dimensional structures (0D, 1D, and 2D), compared with bulky silicon anodes, are strongly believed to have several advanced characteristics including larger surface area, fast electron transfer, and shortened lithium diffusion pathway as well as better accommodation with volume changes, which leads to improved electrochemical behaviors. In this review, recent progress of silicon anode synthesis methodologies generating low-dimensional structures for lithium ion batteries (LIBs) applications is listed and discussed.

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Section: Template Assisted Synthesis Of Silicon Nanotubesmentioning

confidence: 99%

Recent Progress in Synthesis and Application of Low-Dimensional Silicon Based Anode Material for Lithium Ion Battery

Sun

Liu

Zhu

2017

Journal of Nanomaterials

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“…Generally, Si differs from the C in five points as follows: (1)-lower electronegativity; (2)-kinetically more reactivity; (3) -larger atomic-radius 26 , and consequently larger orbitals; (4)-smaller energies differences between both S and the P orbitals, and consequently a lower hybridization 26 energies; and (5)-the availabilities of energetically 30 lowlying "d" orbitals and the abilities for expanding its coordination spheres 31 . Those properties of Si and their apparently contrast with C, make Si chemistry and its material so interesting 32 and worthy to study 33 .…”

Section: Introductionmentioning

confidence: 99%

“…One of the main factors that impact the chemicals and physicals proper ties of Si in comparison with those of carbons are the larger atomic sizes of Si that has longer Si-Si =2.35Å bonds 34 in size and weaker bonds with the bond energies of 222,Kj/mol, comparing to carbon-carbon bonds equal 1.54Å including bond energy= 345.6Kj/mol 33 .…”

Section: Introductionmentioning

confidence: 99%

“…Moreover to this, Yang has been reported a novel synthesis of the large diameters around e"50 nm Si-NTs using the chemical vapour deposition methods while using the transmission-electronmicroscopy or TEM techniques 33 in 2002. After that, Lee 35 published a paper related on the growth of pure silicon Nano -tubes using molecular beam epitaxial 35 on the porous alumina without any catalysts 34 .…”

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confidence: 99%

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Neutral Gases Adsorption With Hydrogen on Silicon Nanotubes: A Fuel Cell Invistegation

Chitsazan¹,

Monajjemi²,

Aghaei³

et al. 2017

Orient. J. Chem

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In the present study, adsorption of helium, neon, argon and binary mixtures of one of them with hydrogen on (5, 5) armchair silicon nanotube at Temperatures of 50, 100 and 150K and Pressures of 1, 5, 7, 10 and 15MPa were studied. For each binary mixture three different mole fractions of hydrogen were examined. Canonical Monte Carlo simulation by ab-initio calculation was employed for studding the adsorption of above gases on single-walled silicon nanotubes (SW-Si-NTs). The interaction energy of gases with the surfaces of the single Si-NTs obtained from quantum mechanics calculations was fitted to an exact potential functions used for simulating the system. Lennard-Jones potential was used for gas-gas and Morse potential was used for gas-silicon nanotubes interaction. The work was carried out at several temperatures and pressures by using Canonical-Monte-Carlo or CMC simulation in order for studding the effect of temperature and pressure on gas adsorption. The adsorption results showed that by increasing the pressure and decreasing the temperature, the amount of adsorption increases. It was concluded that among the rare gases discussed helium was lowest impact on hydrogen adsorption in a mixture of helium and hydrogen.

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“…Recently, there has been a rapid growth research interests in advanced nanotechnology which gives great promise for achieving new sensing materials including high performance nanomaterials [6] and nanoscale eletronics devices [7]. Silicon, as the same group element with carbon in the periodic table of elements has similar structure with carbon, and [8], template combined CVD [9]. In terms of theory, Luo et al [10] studied the structures and electronic properties of pure (5,5) and (5,0) SiNTs with the first principles of density functional method, and found that the conductivity of SiNTs was connected with the chirality of its structure.…”

Section: Introductionmentioning

confidence: 99%

First-Principles Study of Electronic Structure and Optical Properties of Silicon/Carbon Nanotube

Wang¹,

Xu²,

Zhang³

et al. 2017

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A supercell of a nanotube formed by a carbon nanotube (CNT) and a silicon nanotube (SiNT) is established. The electronic structure and optical properties are implemented through the first-principles method based on the density functional theory (DFT) with the generalized gradient approximation (GGA). The calculated results show that (6, 6) -(6, 6) silicon/carbon nanotubes (Si/CNTs) presented a direct band gap of 0.093 eV, (4, 4) -(6, 6) silicon/carbon nanotubes presented a direct band gap of 0.563 eV. The top of valence band was fundamentally determined by the Si-3p states and C-2p states, and the bottom of conduction band was primarily occupied by the C-2p states and Si-3p states in the Si/CNTs. It was found that (6, 6) -(6, 6) Si/CNTs have smaller energy band gap and better conductivity. Besides, Si/CNTs have satisfactory absorption characteristics and luminous efficiency in ultraviolet band.

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Silicon Nanotubes

Cited by 308 publications

References 0 publications

Recent Progress in Synthesis and Application of Low-Dimensional Silicon Based Anode Material for Lithium Ion Battery

Recent Progress in Synthesis and Application of Low-Dimensional Silicon Based Anode Material for Lithium Ion Battery

Neutral Gases Adsorption With Hydrogen on Silicon Nanotubes: A Fuel Cell Invistegation

First-Principles Study of Electronic Structure and Optical Properties of Silicon/Carbon Nanotube

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