Preparation of carbon nanotube-containing hybrid composites from epoxy, novolac, and epoxidized novolac resins using sol–gel method

2018 ◽  
Vol 132 (1) ◽  
pp. 513-524 ◽  
Author(s):  
Hamidreza Ebrahimi ◽  
Hossein Roghani-Mamaqani ◽  
Mehdi Salami-Kalajahi
Keyword(s):  
Carbon Nanotube ◽  
Hybrid Composites ◽  
Sol Gel ◽  
Gel Method ◽  
Sol Gel Method ◽  
Novolac Resins

Preparation of hybrid composites based on epoxy, novolac, and epoxidized novolac resins and silica nanoparticles with high char residue by sol-gel method

2017 ◽  
Vol 39 (S4) ◽  
pp. E2316-E2323 ◽  
Author(s):  
Amin Abdollahi ◽  
Hossein Roghani-Mamaqani ◽  
Mehdi Salami-Kalajahi ◽  
Bahareh Razavi ◽  
Alireza Mousavi ◽  
...  
Keyword(s):  
Silica Nanoparticles ◽  
Hybrid Composites ◽  
Sol Gel ◽  
Char Residue ◽  
Gel Method ◽  
Sol Gel Method ◽  
Novolac Resins

Nano-Sized Lithium Manganese Phosphate/Carbon Nanotube Composites with Enhanced Electrochemical Activity for Lithium-Ion Batteries

2012 ◽  
Vol 1440 ◽  
Author(s):  
Satoru Tsumeda ◽  
Scott D. Korlann ◽  
Shunzo Suematsu ◽  
Kenji Tamamitsu
Keyword(s):  
Electron Microscope ◽  
Carbon Nanotube ◽  
Lithium Ion Batteries ◽  
Sol Gel ◽  
Lithium Ion ◽  
Electrochemical Activity ◽  
Gel Method ◽  
Sol Gel Method ◽  
Manganese Phosphate ◽  
Lithium Manganese Phosphate

ABSTRACTOlivine lithium manganese phosphate, LiMnPO4 is a promising cathode material for high energy and safe lithium ion batteries. However, LiMnPO4 possesses excessively poor electrochemical activity, compared to conventional cathode materials. To enhance the electrochemical activity, we have synthesized LiMnPO4/multi-walled carbon nanotube (MWCNT) composites by employing an in-situ sol-gel method. The LiMnPO4/MWCNT composites were investigated by utilizing X-ray diffraction, thermogravimetric analysis, scanning electron microscope, transmission electron microscope, and galvanostatic charge-discharge cycling. The LiMnPO4 showed a particle size of ca. 50 nm and capacity of 102 mAh/g at 0.1 C without C.V. charging mode. This study demonstrated that the electrochemical activity of LiMnPO4 was significantly affected by not only pH and the amount of a chelating agent but also unreacted Mn2+. This is the first report analyzing the existence and effects of unreacted Mn2+ in LiMnPO4 synthesized by a sol-gel method.

Study on Photo-Degradation of Poly(ethylene terephthalate)/SiO2/TiO2 Hybrid Composites by Sol-Gel Method under Ultraviolet Radiation

2013 ◽  
Vol 721 ◽  
pp. 144-147
Author(s):  
Jiang Zhu ◽  
Xiang Liu ◽  
Qiang Xu ◽  
Qin Ren
Keyword(s):  
Ultraviolet Radiation ◽  
Ethylene Terephthalate ◽  
Hybrid Composites ◽  
Sol Gel ◽  
Photo Degradation ◽  
Gel Method ◽  
Sol Gel Method ◽  
Poly Ethylene Terephthalate ◽  
Poly Ethylene ◽  
Degradation Properties

Poly (ethylene terephthalate) (PET)/SiO2/TiO2 hybrid composites were synthesized via the sol-gel method in the presence of tetraethylorthosilicate (TEOS) and tetrabutyltitanate (TBT). The formation of Si-O-Ti bonds in the resulting products was confirmed by Fourier transform infrared spectroscopy (FTIR) analysis. The Photo-degradation properties of hybrid composites were investigated under the ultraviolet radiation. And the change of the intrinsic viscosity for the hybrid composites was measured using an Ubbelohde viscometer after the photo-degradation.

scholarly journals THE PROPERTIES OF CADMIUM OXIDE-CARBON NANOTUBE NANOCOMPOSITE SYNTHESIZED VIA SOL-GEL METHOD

2019 ◽  
Vol 9 (1) ◽  
pp. 25-36
Author(s):  
Ömer Güler ◽  
Öyküm Başgöz ◽  
Muhammet Gökhan Albayrak ◽  
Mehmet Takgün
Keyword(s):  
Carbon Nanotube ◽  
Sol Gel ◽  
Cadmium Oxide ◽  
Gel Method ◽  
Sol Gel Method

Formation of uniform mesoporous TiO2@C–Ni hollow hybrid composites

2018 ◽  
Vol 47 (30) ◽  
pp. 10093-10101 ◽  
Author(s):  
Yang Ling ◽  
Min Zhang ◽  
Xiaokai Li ◽  
Jing Zheng ◽  
Jingli Xu
Keyword(s):  
Protein Separation ◽  
Hybrid Composites ◽  
Sol Gel ◽  
Mesoporous Tio2 ◽  
Gel Method ◽  
Sol Gel Method ◽  
Carbonization Process

TiO2@C–Ni hollow composites have been prepared by a sol–gel method and post-hydrolysis treatment, together with mussel chemistry and a carbonization process by using CPS microspheres as sacrificial templates, which can be used for catalysis of 4-nitrophenol as well as histidine-rich protein separation.

Nanocrystalline CNT-TiO2 Composites Produced by an Acid Catalyzed Sol-Gel Method

2008 ◽  
Vol 587-588 ◽  
pp. 849-853 ◽  
Author(s):  
Cláudia G. Silva ◽  
Wen Dong Wang ◽  
Joaquim L. Faria
Keyword(s):  
Carbon Nanotube ◽  
Sol Gel ◽  
Pure Tio2 ◽  
Absorption Properties ◽  
Interphase Interaction ◽  
Gel Method ◽  
Sol Gel Method ◽  
Composite Catalysts ◽  
Acid Catalyzed

Carbon nanotube-TiO2 composites and pure TiO2 are prepared by a modified sol-gel method. The nanoscaled materials obtained are extensively characterized by spectroscopic, microscopic and calorimetric techniques. Their photoactivity is tested in the degradation of phenol under visible illumination. A correlation between the CNT content and the changes in the UV–vis absorption properties was found. The effect induced by CNT on the composite catalysts is explained in terms of an interphase interaction between CNT and TiO2 in the composite catalysts.

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