Preparation and dielectric enhancement of nickel-coated β-SiC nanoparticles

Journal Title: Science Paper Online - Year 2007, Vol 2, Issue 5

Abstract

A nanoscale core-shell structure of β-SiCP-Ni has been prepared at lower temperature by a simple and convenient electroless plating approach. The core-shell nanoparticles have been characterized by means of XRD and TEM. The results show that β-SiC nanoparticles (β-SiCP) are coated by a uniform and continuous nickel shell. The mechanism based on the theory of electroless plating and palladium catalysis has been discussed in details about core-shell structure of β-SiCP-Ni. Dielectric permittivities of the original silicon carbide nanoparticles (β-SiCP) and nickel-coated β-SiCP in paraffin wax are measured respectively in the GHz frequency range from 8 to 12 GHz. The real part and dielectric loss tangent of the nickel-coated β-SiCP are significantly enhanced. The origin of the enhancement is theoretically discussed, and also explained by the change of surface electrical conduction behavior of β-SiCP and nickel-coated β-SiCP.

Authors and Affiliations

Guizhen Zou, Maosheng Cao, Yuqing Kang

Keywords

Related Articles

Study on synthesis and explosion properties of<br /> porous silicon/NaClO4 composite<br />

Porous silicon is prepared by electrochemical oxidization method. The porosity and thickness of porous silicon prepared by different conditions as well as the influence of prepared conditions, concentration of sodium per...

Sum of square roots of prime numbers is irrational

In this short note, it is proven that the sum of square roots of prime numbers is irrational.

A Study on Synthesis, Characterization and DNA-binding<br /> of Ruthenium(II) complex: [Ru(bpy)2(ipbh)](ClO4)2<br />

In this study, the DNA-binding of ruthenium(II) mixed-ligand complex containing 2,2'-bipyridine [Ru(bpy)2(ipbh)(ClO4)2 (bpy = 2,2'-bipyridine, ipbh =3-(1H-Imidazo[4,5-f][1,10]phenanthrolin2-yl)-1-benzodioxane) has been s...

文本信息检索实验方法研究

阐述了信息检索研究领域的现状和进行信息检索研究所需的重要实验方法。在介绍了信息检索系统的架构和常见的信息检索研究方向的基础上,对信息检索研究实验的3要素:数据集、实验平台和创新算法进行了详细说明,并对实验平台Lemur和Lucene...

利用大量原子的操纵构建纳米结构

本文报道了一种通过扫描隧道显微镜操纵大量原子来构建纳米结构的方法。通过对在Si(111)-7×7表面上生长的Pb岛施加脉冲偏压,Pb岛受到触发而自发再生长。通过调节操纵参数(如脉冲电压的大小和时间),岛的高度及形状可以较精确地被控制。...

Download PDF file
  • EP ID EP91406
  • DOI -
  • Views 112
  • Downloads 0

How To Cite

Guizhen Zou, Maosheng Cao, Yuqing Kang (2007). Preparation and dielectric enhancement of nickel-coated β-SiC nanoparticles. Science Paper Online, 2(5), 330-335. https://europub.co.uk/articles/-A-91406