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天然石墨     
相关语句
  natural graphite
     SiC B 4C Zr C/C composites were prepared using natural graphite as raw material and adulterated components as additives.
     以天然石墨为原料 ,进行多组元掺杂制备了SiC -B4 C -ZrC/C复合材料。
短句来源
     The composite materials of natural graphite (NG) and nano-scaled carbon were obtained by doping with carbon nanotube (CNT) and carbon nanopowder (CNP) respectively.
     天然石墨(NG)分别掺入碳纳米管(CNT)和纳米炭粉(CNP),得到两种纳米炭与石墨碳的混合材料.
短句来源
     When natural graphite(NG) is doped with different ratios of carbon nanotube(CNT),a composite material formed by nano-C and graphite-C was obtained.
     在天然石墨 ( NG)中掺杂不同比例的碳纳米管 ( CNT)得到纳米碳与石墨碳的复合材料 .
短句来源
     The physicochemical properties of general natural graphite were modified by gas-phase oxidation using air as oxidant at temperatures of 500℃,550℃ and 600℃.
     在 50 0℃、550℃和 60 0℃下用空气作氧化剂 ,将普通的天然石墨进行氧化改性。
短句来源
     Study on Surface-modified Spheroidized Natural Graphite as Cathode Materials in Lithium Ion Batteries
     球型天然石墨表面改性用于锂离子电池负极材料的研究
短句来源
更多       
  natural graphite powder
     Cold Pressing of Moulds Made of Natural Graphite Powder without Binder
     无粘结剂冷压成型的天然石墨模具
短句来源
     A new polystyrene-intercalated graphite oxide/polystyrene nano-composite was prepared by emulsion polymerization of styrene in the presence of graphite oxide. Graphite oxide (GO) was synthesized by the oxidization of natural graphite powder with KMnO4 in the concentrated sulfuric acid.
     天然石墨在浓硫酸中用高锰酸钾氧化成氧化石墨(GO),在含有氧化石墨的苯乙烯乳液中进行自由基聚合,可以得到层间插入聚苯乙烯(PS)的石墨纳米复合材料。
短句来源
  nature graphite
     The asymmetric capacitors using nature graphite (G), meso-carbon microbeads (MCMB), meso-carbon fibre (MCF) as the anode and activated carbon as the cathode were assembled. Electrochemical tests show that the charge/discharge performance of these asymmetric systems is correlated with the lithium intercalation behavior of the graphite materials straightway.
     以天然石墨(G)、中间相碳微球(MCMB)、中间相碳纤维(MCF)等石墨类电极与活性炭电极构成非对称体系,电化学测试表明,电容器的充放电性能与石墨类电极的快速嵌脱锂性能直接相关,其中C/MCMB非对称电容体系表现出良好的高倍率充放电性能,电流密度从20mA/g增至200mA/g,其容量保持率在62%以上;
短句来源
     Through electrochemical tests, it can be obtained that ES is an outstanding film-forming additive and can not only allow the use of graphite anode in PC-based electrolyte, but also improve the cycling life of lithium-ion cell using low cost nature graphite anode.
     充放电测试研究表明ES是一种很好的成膜添加剂,不仅能够防止碳酸丙烯酯(PC)共嵌入石墨,而且能够显著提高采用改性天然石墨作负极的锂离子电池的循环寿命,大大降低锂离子电池的成本。
  expandable graphite
     A comparative study on the forming process of exfoliated graphite and graphite oxide prepared from both natural graphite and expandable graphite is accomplished with XRD,FTIR and TG techniques.
     本文以天然石墨、可膨胀石墨为原料分别合成了膨胀石墨及氧化石墨,并利用X射线衍射、红外光谱及热分析等手段对其进行结构研究.
短句来源

 

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  natural graphite
The surface properties of fully fluorinated samples of natural graphite (FG) and carbon fiber (FCF) were studied by gas chromatography, IR spectroscopy, and static adsorption.
      
Adsorption of nickel N,N-ethylenebis(salicylideneimine) complex from acetonitrile solution on expanded natural graphite powder at 273-313 K is studied.
      
Adsorption of a nickel(II) complex with a ligand N,N'-2,3-dimethylbutane-2,3-diylbis(salicylidenimine) on a powdered thermally expanded natural graphite and at the air-solution interface from an acetonitrile solution was studied at 283 and 293 K.
      
Modification of natural graphite using pitch through dynamical melt-carbonization
      
Characteristic energy loss measurements are carried out on natural graphite single crystals.
      
更多          
  natural graphite powder
Adsorption of nickel N,N-ethylenebis(salicylideneimine) complex from acetonitrile solution on expanded natural graphite powder at 273-313 K is studied.
      
The behaviour of Mo wire embedded in natural graphite powder was studied.
      
Surface characterization of natural graphite powder composite electrodes by atomic force microscopy
      
  expandable graphite
Electrochemical Synthesis of Thermally Expandable Graphite Compounds in Nitrate Electrolyte
      
The application of expandable graphite as a flame retardant and smoke-suppressing additive for ethylene-propylene-diene terpolym
      
The influence of expandable graphite on the smoke formation and flammability of ethylene-propylene-diene terpolymer (EPDM) is studied in the present work.
      
Thermogravimetric examinations and nitrous oxide index measurements show that expandable graphite acts as a fire and smoke-suppresant additive predominantly in the condensed phase.
      
Traces of polymer surface temperature against time show that the expanded carbon layer formed in the combustion of expandable graphite produces a heat insulating effect toward the undecomposed bulk.
      
更多          
  其他


Hydtogenated amorphous carbon (a-C: H) films were prepared by. ca-thodic glow discharge deposition onto temperatrue controlled substrates.and annealed at temperature up to 600℃. Raman spectra of these films,in the range 1000~1800 cm~(- 1), were analyzed. Raman spectrum of a-C: Hfilms is a single asymmetric peak. As anneal temperature increases. Ra-man spectrum of a-C: H films appeares to be two peaks. and also observedRaman spectra of diamond and pristine graphite. A study on the compar-isbn of these spectra...

Hydtogenated amorphous carbon (a-C: H) films were prepared by. ca-thodic glow discharge deposition onto temperatrue controlled substrates.and annealed at temperature up to 600℃. Raman spectra of these films,in the range 1000~1800 cm~(- 1), were analyzed. Raman spectrum of a-C: Hfilms is a single asymmetric peak. As anneal temperature increases. Ra-man spectrum of a-C: H films appeares to be two peaks. and also observedRaman spectra of diamond and pristine graphite. A study on the compar-isbn of these spectra with recent model is discussed, The results are consi-stent with a model of amorphous carbon in which there is a network st-ructure of both three-fold and four-fold coordinated atoms.

用高频阴极辉光放电沉积在控制基片温度来制备氢化非晶态碳(a—C:H)膜,退火温度上升到600℃,这些膜的喇曼光谱在波区1000~1800cm~(-1)进行的,a-C:H膜的喇曼光谱是一个非对称的简单的谱带。随着退火温度的升高,a—C:H膜出现两个峰值,也观察了金刚石和天然石墨的喇曼光谱,这些光谱与现代研究的模型进行了讨论,其结果认为非晶态碳具有三次配位和四次配位原子的网状结构模型相一致。

Carbon-polypropylene(CPP),which is made from the mixture of natural graphite and polypropylene through hot pressing,as an anodic ac- tive matter is intercalated and over-oxidied in thick sulfuric acid ele- ctrolyte with the cyclic voltammetre methode and the galvanostatic meth- ode.In the region of intercalation,the oxidation(intercalation)and the reduction(deintercalation)are basically reversible,but in the region of overoxidation,the reversibility of the reactions become worse and the different between the...

Carbon-polypropylene(CPP),which is made from the mixture of natural graphite and polypropylene through hot pressing,as an anodic ac- tive matter is intercalated and over-oxidied in thick sulfuric acid ele- ctrolyte with the cyclic voltammetre methode and the galvanostatic meth- ode.In the region of intercalation,the oxidation(intercalation)and the reduction(deintercalation)are basically reversible,but in the region of overoxidation,the reversibility of the reactions become worse and the different between the oxido-reduction peak potential coupples also be- comes greater.A graphite oxidate,like C_(2.7)A which has a oxidisability of 0.37,is formed by oxidating of CPP.The Reaction possesses a certain reversibility.

作者将天然石墨和聚丙烯的混合热压成型物(CPP)作为电极活性物质,在浓 H_2SO_4电解质中,用循环伏安法和恒电流法,进行了阳极嵌入化和过氧化。在嵌入反应电压范围内,氧化(嵌入)还原(嵌出)反应基本可逆;但在过氧化电压范围内,过程的可逆性变,差氧化还原峰对的电位差也变大,用小的恒电流对 CPP 进行氧化,可以得到 C_(2·7)A 型的石墨过氧化物,其氧化度达0.37,且反应尚有一定的可逆性。

Introducing a new instrument called the Scanning Tunneling Microscope (STM) that is capable of observing the real-space images of surface showing

本文所介绍的扫描隧道显微镜是一种用于表面研究的新技术,它可以实时地观察到物质表面原子在真实空间的排列及其电子性质。作者采用这种技术观察了天然石墨的(001)表面结构并首次拍摄了垂直于(001)方向的石墨的STM图象。在对碳纤维的观察中发现了一种类似于金刚石型的表面结构。

 
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