1) catalytic mechanism3
催化石墨化机理
2) graphitization mechanism
石墨化机理
3) catalytic graphitization
催化石墨化
1.
MCMB after catalytic graphitization at high temperature as anode materials of lithium-ion batteries
催化石墨化MCMB用作锂离子电池负极材料
2.
The effects of heat-treated temperature,the catalyst types and relevant content on carbon fiber catalytic graphitization are discussed in detail in this paper.
论述了催化剂种类、含量及石墨化温度三因素对碳纤维催化石墨化反应的影响。
3.
The amount of 5% in weight of H 3BO 3,BN or B 4C powder was added to medium temperature pitches which were then solidified,carbonized and graphitized at 2300℃,and were then characterized by X-ray diffraction to examine the effects of various boron compounds on the catalytic graphitization of pitch-derived carbon.
0 5的H3 BO3 、BN、B4C粉末添加到中温沥青熔体中 ,经固化、炭化、2 30 0℃石墨化处理后 ,以XRD表征炭的结构 ,探讨了硼的不同化合物对沥青炭的催化石墨化效率 ,并分析其机理 。
4) graphite catalyst
石墨催化剂
5) Pt/graphite catalyst
Pt/石墨催化剂
1.
Pt/graphite catalyst was prepared by incipient wetness impregnation using H2PtCl6·6H2O as precursor.
本研究以石墨为催化剂载体,以负载贵金属Pt作为活性组份,制备了Pt/石墨催化剂,并采用SEM、XRD和XPS等分析手段对相关催化剂进行了表征。
2.
Pt/graphite catalyst was prepared by incipient wetness impregnation using H_2PtCl_6·6H_2O as precursor substance.
6H2O为贵金属活性组分前驱物,采用等体积浸渍法制备了Pt/石墨催化剂。
6) graphitization
[,ɡræfitai'zeiʃən]
石墨化处理
1.
Felt-based carbon/carbon (C/C) composites were prepared by a super high pressure impregnation and carbonization process (SPIC) and graphitization at high temperatures.
用超高压液相浸渍和碳化，经石墨化处理制备了毡基碳／碳复合材料。
2.
The graphitization degrees of quasi-3D C/C composites were analyzed through X-ray diffractometer,and the element contents of hydrargyrum,arsenic,plumbum and cadmium in the materials were determined by the atomic fluorescence analyzer.
采用X射线衍射仪和原子荧光分析仪对石墨化处理前后准三维C/C复合材料的石墨化程度及其所含的汞、砷、铅和镉元素含量进行了分析。
补充资料：可石墨化炭和难石墨化炭
可石墨化炭和难石墨化炭
graphitizable carbon and non-graphiti zable carbon
兹落 羹…羹~_迄畜一、羹墓蓄退次粉 图2乱层结构中分子层片排列模型 a一难石墨化炭;b一可石墨化炭长a为2.456人，晶胞高C为6.708人，层间距d为3. 354人。在六角平面内碳原子以a键结合，在层与层之间则靠层面间活动的大电子云所提供的键力结合。石墨炭是指具有石墨晶体结构的炭物质，而不考虑它是否存在结构上的缺陷。而焦炭类炭材料则不具备如石墨那样的三维有序结构。焦炭类的分子平面只是近似有序地堆砌，称为乱层结构。根据这些平面堆砌的平行程度，又可以把这类炭分为可石墨化炭和难石墨化炭。分子平面堆砌得很不规则，并在层间有较多空隙(图2。)的炭为难石墨化炭。难石墨化炭的分子堆砌的有序程度只有1一snm，在光学显微镜下无光学活性，所以又称为光学各向同性炭。分子平面排列得比较整齐，层间的空隙也较少(图Zb)的炭为可石墨化炭。可石墨化炭的分子堆砌的有序程度为0.5一20勿m，在偏光显微镜下，旋转载物台时，可看到它们有明暗交替变化，所以又称为光学各向异性炭。 (钱湛芬)keshlmohuatan he nan shimohuata们可石墨化炭和难石墨化炭(g raPhitizable car-bon and non一graphit如ble carbon)可石墨化炭是指在常压下加热到3000℃，可以转化为石墨炭的炭物质，又称易石墨化炭。难石墨化炭则是指在大气压下加热到3000℃也不能转化为石墨炭的炭物质。炭材料的基本结构是石墨结构。石墨的理想晶体结构为，由碳原子组成六角网状分子平面，各平面以平行于基面的方向有序地堆砌。(图1)它的单位晶胞边属 a=2 .456又 图1石墨晶体结构
说明：补充资料仅用于学习参考，请勿用于其它任何用途。
参考词条