Preparation and characterization of SiC@CNT coaxial nanocables using CNTs as a template

Qi, Xiangdong; Zhai, Guangmei; Liang, Jia; Ma, Suxia; Liu, Xuguang; Xu, Bingshe

doi:10.1039/c4ce00693c

Cited by 25 publications

(12 citation statements)

References 25 publications

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“…Very high value of I D /I G for GA shows that the size of continuos areas of sp 2 carbon is very small while sp 3 carbon is dominant, which is also resulted from the aerogel network formation. Additionally, the peaks at 545 and 1060 cm -1 are attributed to Si-O network [55,58] and the peaks at 742 and 946 cm -1 are assigned to Si-C group [59,60]. to GO in the diffraction pattern of GOFA and GOFASi, which clearly shows that layers are disordered during the modification processes [62].…”

Section: Resultsmentioning

confidence: 95%

Novolac phenolic resin and graphene aerogel organic-inorganic nanohybrids: High carbon yields by resin modification and its incorporation into aerogel network

Noparvar-Qarebagh

Roghani‐Mamaqani

Salami‐Kalajahi

2016

Polymer Degradation and Stability

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Graphene oxide (GO) modified with furfuryl alcohol and (3-aminopropyl) triethoxysilane (GOFASi) was used in two separate ways for preparation of novolac resin nanohybrids. In the first procedure, graphene-containing silica aerogel (GA) was obtained by incorporation of GOFASi into silica aerogel network using tetraethyl orthosilicate (TEOS). Then, GA was used as an additive in novolac resin matrix. In the second procedure, the synthesis of a hybrid novolac resin was accomplished by network formation via the reaction of GOFASi with (3

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Section: Resultsmentioning

confidence: 95%

Novolac phenolic resin and graphene aerogel organic-inorganic nanohybrids: High carbon yields by resin modification and its incorporation into aerogel network

Noparvar-Qarebagh

Roghani‐Mamaqani

Salami‐Kalajahi

2016

Polymer Degradation and Stability

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“…The peaks at 532 and 1072 cm -1 are related to Si-O network [29,30]. Additionally, the peaks appeared at 731 and 941 cm -1 are related to Si-C group [58]. X-ray diffraction (XRD) patterns of CNTCOOH, FCNT, CNTX, ECNTX0.5, IECNTX0.5, and TECNTX0.5 are shown in Fig.…”

Section: Resultsmentioning

confidence: 96%

Incorporation of epoxy resin and carbon nanotube into silica/siloxane network for improving thermal properties

et al. 2016

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Thermal properties of epoxy resin (E) were improved by its incorporation into silica/siloxane network in the presence of carbon nanotube (CNT). At first, CNT xerogel (CNTX)/E composite was prepared by curing E in the presence of CNTX. Then, E is modified with (3-isocyanatopropyl)triethoxysilane (IE) or tetraethyl orthosilicate (TEOS) oligomer (TE) for its incorporation into a hybrid network of CNT-containing silica/siloxane network. For this purpose, a bifunctional modifier of 1,1 0 -(hexane-1,6-diyl)bis(3-(3-(trimethoxysilyl)propyl)urea) (HDBTMSPU) was synthesized. CNTX was prepared by incorporation of HDBTMSPU-modified CNT (FCNT) into silica/siloxane network by using HDBTMSPU and TEOS. IE (TE), FGO, HDBTMSPU, and TEOS were also used in the preparation of hybrid products. Three types of composites were compared in their thermal degradation temperature and char content. Functionalization of CNT was confirmed by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, Raman, X-ray diffraction (XRD), and thermogravimetric analysis (TGA) results. Xerogel formation was proved by Raman, XRD, and N 2 adsorption and desorption isotherms. TGA results showed that the hybrid of IE, FCNT, and silica/ siloxane network shows higher thermal properties. Char residue is increased 17.54 % by only 4 wt% loading of FCNT in IE resin (IEGX1). Formation of xerogel network around CNT was observed by scanning and transmission electron microscopies.

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“…The peaks at 700 and 924 cm -1 are assigned to Si-C groups [57]. Finally, the peak at 634 cm -1 is attributed to Si-O-C groups [39].…”

Section: Resultsmentioning

confidence: 98%

Incorporation of epoxy resin and graphene nanolayers into silica xerogel network: an insight into thermal improvement of resin

Najafi-Shoa

Roghani‐Mamaqani

Salami‐Kalajahi

2016

J Sol-Gel Sci Technol

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Three well-tuned procedures were used for thermal improvement of epoxy resin (E). Accordingly, graphene xerogel (GX) was used as nanofiller in the matrix of E. Additionally, (3-isocyanatopropyl)triethoxysilanemodified E (IE) or tetraethyl orthosilicate (TEOS) oligomer-modified E (TE) was incorporated into a hybrid structure of graphene-containing silica/siloxane network. For this purpose, a bifunctional silane coupling agent of 1,1 0 -(hexane-1,6-diyl)bis(3-(3-(trimethoxysilyl)propyl)urea) (HDBTMSPU) was synthesized. GX was obtained by incorporation of HDBTMSPU-modified graphene oxide (FGO) into xerogel structure using HDBTMSPU and TEOS. Modified resins, FGO, HDBTMSPU, and TEOS were also used in preparation of hybrid products. Thermal stability and char residue of the composites were compared. GO modification was approved by Fourier transform infrared spectroscopy, X-ray photoelectron spectroscopy, Raman, X-ray diffraction, and thermogravimetric analysis results. Hybrid composite of IE, FGO, and silica/siloxane network shows higher thermal properties. Char residue is increased by 16.93 % by loading of only 1 wt% of FGO in this hybrid product. Graphical Abstract

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Preparation and characterization of SiC@CNT coaxial nanocables using CNTs as a template

Abstract: Novel one-dimensional SiC@carbon nanotube (CNT) coaxial nanocables have been successfully fabricated by using a carbothermal chemical vapor deposition method.

Cited by 25 publications

References 25 publications

Novolac phenolic resin and graphene aerogel organic-inorganic nanohybrids: High carbon yields by resin modification and its incorporation into aerogel network

Novolac phenolic resin and graphene aerogel organic-inorganic nanohybrids: High carbon yields by resin modification and its incorporation into aerogel network

Incorporation of epoxy resin and carbon nanotube into silica/siloxane network for improving thermal properties

Incorporation of epoxy resin and graphene nanolayers into silica xerogel network: an insight into thermal improvement of resin

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