نتایج جستجو برای: carbon spheres

تعداد نتایج: 301195  

Journal: :ACS applied materials & interfaces 2011
Lirong Kong Xiaofeng Lu Xiujie Bian Wanjin Zhang Ce Wang

Fe₃O₄ microsphere is a good candidate as support for catalyst because of its unique magnetic property and large surface area. Coating Fe₃O₄ microspheres with other materials can protect them from being dissolved in acid solution or add functional groups on their surface to adsorb catalyst. In this paper, a carbon layer was coated onto Fe₃O₄ microspheres by hydrothermal treatment using polyethyl...

2017
Wei Wang Zachary Favors Changling Li Chueh Liu Rachel Ye Chengyin Fu Krassimir Bozhilov Juchen Guo Mihrimah Ozkan Cengiz S. Ozkan

Herein, facile synthesis of monodisperse silicon and carbon nanocomposite spheres (MSNSs) is achieved via a simple and scalable surface-protected magnesiothermic reduction with subsequent chemical vapor deposition (CVD) process. Li-ion batteries (LIBs) were fabricated to test the utility of MSNSs as an anode material. LIB anodes based on MSNSs demonstrate a high reversible capacity of 3207 mAh ...

Journal: :Journal of the American Chemical Society 2012
Zhenfeng Bian Jian Zhu Jinguo Wang Shengxiong Xiao Colin Nuckolls Hexing Li

Described here is a new and highly general strategy for multiple-template (multitemplate) patterning. This process is significant because it allows us to create various unusual shapes such as solid spheres, yolk-shell spheres, flowerlike particles, and structured nanocomponents. Alcoholysis of the metal-organic precursors with mixtures of glycerol and various amounts of ethanol followed by calc...

2016
Ngamta Thamwattana Duangkamon Baowan Barry J. Cox

Bovine serum albumin is commonly used in many biochemical applications due to its stability, lack of interference within biochemical reactions and low production cost. Here, we model the interaction of bovine serum albumin inside a carbon nanotube. The carbon nanotube is chosen as an example to demonstrate its potential use in targeted drug and protein delivery and as an enzyme immobilizing mat...

2016
Amine Aribi Ahmad El Soufi AMINE ARIBI AHMAD EL SOUFI

We prove that the first positive eigenvalue, normalized by the volume, of the sub-Laplacian associated with a strictly pseudoconvex pseudo-Hermitian structure θ on the CR sphere S ⊂ C, achieves its maximum when θ is the standard contact form.

Journal: :Discrete & Computational Geometry 2010
Veit Elser Simon Gravel

We use the automorphism group Aut(H), of holes in the lattice L8 = A2 ⊕ A2 ⊕ D4, as the starting point in the construction of sphere packings in 10 and 12 dimensions. A second lattice, L4 = A2 ⊕ A2, enters the construction because a subgroup of Aut(L4) is isomorphic to Aut(H). The lattices L8 and L4, when glued together through this relationship, provide an alternative construction of the lamin...

2009
IAN HAMBLETON

Let p be an odd prime. We construct a non-abelian extension Γ of S1 by Z/p × Z/p, and prove that any finite subgroup of Γ acts freely and smoothly on S2p−1 × S2p−1. In particular, for each odd prime p we obtain free smooth actions of infinitely many non-metacyclic rank two p-groups on S2p−1 × S2p−1. These results arise from a general approach to the existence problem for finite group actions on...

2008
R Sharma

Drug delivery systems use different carrier cage-like structures such as bucky ball, therapeutic spheres, carbon nanotube spheres, tiny-tots, smart dots, paramagnetic nanoparticle cages, dendrimers, liposomes etc. The major developments are reported based on the physical properties of these particles such as paramagnetic, immunity, protein profile, transport dynamics, molecular recognition, rec...

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