摘要
固体化学合成的氮化物较其他氧化物研究相对较少,然而过去20年来,该研究领域得到重视。超硬 C3N4相所类似的碳氮化物目前已获得深入研究,相比较而言,Si-C-N化合物的研究依旧比较少。在大气条件下首先合成的三元晶体相为Si(NCN)2和 Si2C2(NCN)。本文回顾了近年来采用高温高压反应工艺合成C-N二元和 Si-C-N三元系材料的研究现状。这类新型材料因具有一些独特的性能,如高硬度、磁性、光电性能,而具有重大研究前景。
The solid state chemistry of nitrides was relatively neglected in the past, compared with the research of the solid state chemistry of oxide compounds, although there has been considerable activity in this area over the past two decades. In contrast to numerous studies on carbon nitride phases initiated by the postulation ofa ＂superhard＂ C3N4 phase, investigations of ternary Si-C-N compounds remain sparse. The compounds Si（NCN）2 and Si2C2（NCN） were the first ternary crystalline phases in the SiCN system synthesized at ambient pressure. The present review highlights recent developments in the synthesis of binary C-N and ternary Si-C-N materials under high pressure and high temperature reaction conditions. The new materials are predicted to exhibit unique properties, such as a high level of hardness, or interesting magnetic and optoelectronic features.
出处
《硅酸盐学报》
EI
CAS
CSCD
北大核心
2007年第8期955-967,共13页
Journal of The Chinese Ceramic Society
基金
the German Science Foundation(DFG),Bonn,Germany,for their continuous support in the field of high-pressure materials chemistry
the DFG for founding a new priority research program entitled"Synthesis,In situ Characterization and Quantum Mechanical Modeling of Earth Materials,0xides,Carbides and Nitrides at Extremely High Pressures and Temperatures"(DFG-SPP 1236)
the DFG for financial support(contracts Kr 1805/5-1 and Kr 1805/9-1)
grants from the Forschungszentrum Julich and from the Center for Computation and Communication at Aachen.
关键词
氮化碳
硅碳氮
透射电镜
电子能耗谱表征
密度泛函理论和局域密度近似计算
carbon nitride
silicon carbonitride
transmission electron microscopy
electron energy loss spectrometer characterization
density functional theory and local density approximation calculation
