Effect of pretreatment on the microstructure of multiwalled carbon nanotubes
Four kinds of multi-walled carbon nanotubes pretreated by different methods were studied. Chemically functionalized (hydroxylation and carboxylation) CNTs were prepared by oxidizing original CNTs in H2SO4 solutions of different temperatures and concentrations by KMnO4. Graphitized CNTs were prepared...
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| Veröffentlicht in: | Journal of physics. Conference series 2020-10, Vol.1639 (1), p.12096 |
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| creator | He, X L Tang, P J Wang, X Y Li, P Y |
| description | Four kinds of multi-walled carbon nanotubes pretreated by different methods were studied. Chemically functionalized (hydroxylation and carboxylation) CNTs were prepared by oxidizing original CNTs in H2SO4 solutions of different temperatures and concentrations by KMnO4. Graphitized CNTs were prepared by heat-treating original CNTs in an inert gas at 2800°C for 20 hours. CNTs Nickel plating on the surface was obtained by electroless plating. The effect of pretreatment on the surface state and microstructure of carbon nanotubes was also studied. The results showed that Chemical functionalization could form some functional groups on the surface of CNTs, which could not only improve the compatibility of CNTs with some solvents, but also purified CNTs, which had a positive effect on the preparation of composite materials. High-temperature graphitization treatment could significantly increase the degree of crystallization of carbon nanotubes and reduce structural defects. After electroless nickel plating, evenly distributed nano-sized metal particles were formed on the surface of the CNTs, and the interface between the two was well bonded. |
| doi_str_mv | 10.1088/1742-6596/1639/1/012096 |
| format | Article |
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Chemically functionalized (hydroxylation and carboxylation) CNTs were prepared by oxidizing original CNTs in H2SO4 solutions of different temperatures and concentrations by KMnO4. Graphitized CNTs were prepared by heat-treating original CNTs in an inert gas at 2800°C for 20 hours. CNTs Nickel plating on the surface was obtained by electroless plating. The effect of pretreatment on the surface state and microstructure of carbon nanotubes was also studied. The results showed that Chemical functionalization could form some functional groups on the surface of CNTs, which could not only improve the compatibility of CNTs with some solvents, but also purified CNTs, which had a positive effect on the preparation of composite materials. High-temperature graphitization treatment could significantly increase the degree of crystallization of carbon nanotubes and reduce structural defects. After electroless nickel plating, evenly distributed nano-sized metal particles were formed on the surface of the CNTs, and the interface between the two was well bonded.</description><identifier>ISSN: 1742-6588</identifier><identifier>EISSN: 1742-6596</identifier><identifier>DOI: 10.1088/1742-6596/1639/1/012096</identifier><language>eng</language><publisher>Bristol: IOP Publishing</publisher><subject>Carbon ; Carboxylation ; Composite materials ; Crystal defects ; Crystallization ; Electroless nickel plating ; Electrons ; Functional groups ; Graphitization ; High temperature ; Hydroxylation ; Metal particles ; Microstructure ; Multi wall carbon nanotubes ; Oxidation ; Physics ; Plating ; Potassium permanganate ; Pretreatment ; Rare gases ; Sulfuric acid</subject><ispartof>Journal of physics. Conference series, 2020-10, Vol.1639 (1), p.12096</ispartof><rights>Published under licence by IOP Publishing Ltd</rights><rights>2020. 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Conference series</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>He, X L</au><au>Tang, P J</au><au>Wang, X Y</au><au>Li, P Y</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Effect of pretreatment on the microstructure of multiwalled carbon nanotubes</atitle><jtitle>Journal of physics. Conference series</jtitle><addtitle>J. Phys.: Conf. Ser</addtitle><date>2020-10-01</date><risdate>2020</risdate><volume>1639</volume><issue>1</issue><spage>12096</spage><pages>12096-</pages><issn>1742-6588</issn><eissn>1742-6596</eissn><abstract>Four kinds of multi-walled carbon nanotubes pretreated by different methods were studied. Chemically functionalized (hydroxylation and carboxylation) CNTs were prepared by oxidizing original CNTs in H2SO4 solutions of different temperatures and concentrations by KMnO4. 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| subjects | Carbon Carboxylation Composite materials Crystal defects Crystallization Electroless nickel plating Electrons Functional groups Graphitization High temperature Hydroxylation Metal particles Microstructure Multi wall carbon nanotubes Oxidation Physics Plating Potassium permanganate Pretreatment Rare gases Sulfuric acid |
| title | Effect of pretreatment on the microstructure of multiwalled carbon nanotubes |
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