欢迎您！东篱公司
退出
-
申报数据库
-
立项数据库
-
成果数据库
-
项目获奖数据库
中文摘要：
采用化学气相沉积法制备了螺旋碳纤维，通过XRD、EDX和SEM对样品进行了表征和分析，采用研磨方法考察了螺旋结构的破坏情况，并对比了研磨前后样品的低温磁性。结果表明，在有效去除催化剂的情况下，螺旋形貌被破坏以后，碳纤维的抗磁性信号增强。基于单电子受缚于螺旋线的物理模型对实验结果进行分析和讨论，认为螺旋形貌具有顺磁响应，并阐释了其产生机理。
英文摘要：
The helical carbon fibers were fabricated using chemical vapor deposition （CVD） process and were characterized by XRD, EDX and SEM. The magnetic properties of helical carbon fibers were studied experimentally. The response to external magnetic field was tested by SQUID at 3K. It showed that the magnetization of helical carbon fiber response negatively to external magnetic field, and the diamagnetism of the carbon fibers without helical structure was stronger than helical carbon fibers. The observation of experiments indicated that paramagnetism was caused by helical structure. In addition, the mechanism of the magnetic property of helical structure was qualitative studied by the model of a free electron constrained on a helical coil. The results showed paramagnetism induced by electronic bro- ken-chirality in mesoseale can be realized in a helical structure.
同期刊论文项目
同项目期刊论文
Effect of surface modification of bamboo cellulose fibers on mechanical properties of cellulose/epox
Gas-induced formation of Cu nanoparticle as catalyst for high-purity straight and helical carbon nan
Gas-Induced Formation of Cu Nanoparticle as Catalyst for High-Purity traight and Helical Carbon Nano
Fabr-ication of polypyrrole/nano-exfoliated graphite compositesby in situ intercalation polymerizati
A Facile Approach to Construct Multiple Structured ZnO Crystals by Trisodium Citrate-Assisted Hydrot
Synthesis and mechanism of polyaniline nanotubes with rectangular cross section via in situ polymeri
Effect of Al3+ on the growth of ZnO nanograss film and its application in dye-sensitized solar cells
Effects of modifications of bamboo cellulose fibers on the improved mechanical properties of cellulo
R-emarkably improving microwave absorption by cloaking micro-scaled tetrapod hollow with helical car
Enhanced performance of core-shell structured polyaniline@helical carbon nanotubeshybrids for ammoni
High yield synthesis of helical carbon nanotubes catalyzed by porous precursor with terrace morpholo
One-step synthesis of graphene/polyaniline hybrids by in situ intercalation polymerization and their
Remarkably improving microwave absorption by cloaking micro-scaledtetrapod hollow withhelical carbon
The effects on mechanical properties and crystallization of poly(L-lactic acid) reinforced by cellul
Controllable synthesis of carbon coils and growth mechanism for twinning double-helix catalyzed by N
Hierarchical ZnO architectures consisting of nanorods and nanosheets prepared via a solution route f
Effective improvement in microwave absorption by uniform dispersion of nanodiamond in polyaniline th
Modification of lignin with silane coupling agent to improve the iterface of poly(L-lactic) acid/lig
Enhan-ced performance of core-shell structured polyaniline at helical carbon nanotube hybrids for am
Fab-rication of polypyrrole/nano-exfoliated graphite composites by in situ intercalation polymerizat
期刊信息
位置：