膨胀石墨的孔结构和表面化学组成对其物化性能有着很大影响,利用扫描电镜(SEM)和X射线光电子能谱(XPS)对550～920℃制备的膨胀石墨形态结构和表面功能基团进行了表征,结果表明:在蠕虫状的膨胀石墨粒子表面和内部存在大量的网状孔洞,这些网络状孔洞是由10～50nm厚的石墨片叠合而成的平行塌陷片层构成;膨胀石墨表面化学组成以C、O元素为主,其它元素含量较低,其表面存在有-C=O、-C-O和-O-O-(过氧基团)等功能基团.
参考文献
| [1] | 康飞宇.石墨层间化合物和膨胀石墨[J].新型炭材料,2000(04):80-80. |
| [2] | H.P.Boehm .Surface oxides on carbon and their analysis: a critical assessment[J].Carbon: An International Journal Sponsored by the American Carbon Society,2002(2):145-149. |
| [3] | 杨建国,吴承佩.膨胀石墨的Raman光谱研究[J].光散射学报,2005(04):341-346. |
| [4] | 稻垣道夫,丰田义雄,康飞宇,郑永平,沈万慈.膨胀石墨的孔隙结构-中国国家自然科学基金和日本学术振兴会联合研究项目报道[J].新型炭材料,2003(04):241-249. |
| [5] | 曹乃珍;沈万慈;温诗铸 等.膨胀石墨孔结构的影响因素[J].材料科学与工程,1996,14(04):22-26. |
| [6] | Chuan X;Chen D;Zhou X .Intercalation of CuCl2 into expanded graphite[J].CARBON,1997,35(02):311-313. |
| [7] | Sherwood PMA .Surface analysis of carbon and carbon fibers for composites[J].J Electron Spectrosc Rdat Phenom,1996,81(03):319-342. |
| [8] | Lee WH;Kim JY;Ko YK et al.Characterization of surface oxides[J].Applied Sueface Science,1999,141(1-2):107-113. |
| [9] | N.V. Beck;S.E. Meech;P.R. Norman;L.A. Pears .Characterisation of surface oxides on carobn and their influence on dynamic adsorption[J].Carbon: An International Journal Sponsored by the American Carbon Society,2002(4):531-540. |
| [10] | Lee WH.;Lee WJ.;Lee JG.;Haddon RC.;Reucroft PJ.;Kim SJ. .X-ray photoelectron spectroscopic studies of surface modified single-walled carbon nanotube material[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2001(1/2):121-127. |
| [11] | Bradley RH.;Sheng E.;Sutherland I. .CARBON SURFACE - AREA, POROSITY, CHEMISTRY, AND ENERGY[J].Journal of Colloid and Interface Science,1996(2):561-569. |
| [12] | Lee WH.;Reucroft PJ.;Lee JG. .XPS study of carbon fiber surfaces treated by thermal oxidation in a gas mixture of O-2/(O-2+N-2)[J].Applied Surface Science: A Journal Devoted to the Properties of Interfaces in Relation to the Synthesis and Behaviour of Materials,2001(1/2):136-142. |
| [13] | Jackson ST;Nuzzo RG .Determining Hybridization Differences for Amorphous-Carbon from the Xps C-1s[J].Envelope Appl Surf Sei,1995,90(02):195-203. |
| [14] | Moreno-Castilla C.;Carrasco-Marin F.;Lopez-Ramon MV. .Changes in surface chemistry of activated carbons by wet oxidation[J].Carbon: An International Journal Sponsored by the American Carbon Society,2000(14):1995-2001. |
| [15] | Yue ZR;Wang L;Gardner SD;Pittman CU;Jiang W .Surface characterization of electrochemically oxidized carbon fibers[J].Carbon: An International Journal Sponsored by the American Carbon Society,1999(11):1785-1796. |
| [16] | Lahaye J. .The chemistry of carbon surfaces[J].Fuel,1998(6):543-547. |
| [17] | Leiro JA;Heinonen MH;Laiho T et al.Core-level XPS spectra of fullerene,highly oriented pyrolitic graphite,and glassy carbon[J].J Electron Spoctrosc Relat Phenom,2003,128(2-3):205-213. |
| [18] | Xie RC;Qu BJ .Therme-oxidative degradation behaviors of expandable graphite-based intumescent halogen-free flame retardant LLDPE blends[J].Polymer Degradation and Stability,2001,71(03):395-402. |
| [19] | Waseem SF.;He GR.;Jiang WB.;Pittman U.;Gardner SD. .Adhesion and surface analysis of carbon fibres electrochemically oxidized in aqueous potassium nitrate[J].Journal of Materials Science,1998(12):3151-3162. |
| [20] | Gardner SD.;Pittman CU.;He G. .A SPECTROSCOPIC EXAMINATION OF CARBON FIBER CROSS SECTIONS USING XPS AND ISS[J].Carbon: An International Journal Sponsored by the American Carbon Society,1996(10):1221-1228. |
| [21] | dolaPuente G;Pis JJ;Menendez JA et al.Thermal stability of oxygenated functions in activated earbous[J].Journal of Analytical and Applied Pyrolysis,1997,43(02):125-138. |
| [22] | R.H.Bradley;R.Daley;F.Le Goff .Polar and dispersion interactions at carbon surfaces: further development of the XPS-based model[J].Carbon: An International Journal Sponsored by the American Carbon Society,2002(8):1173-1179. |
| [23] | C. HONTORIA-LUCAS;A. J. LOPEZ-PEINADO;J. DE D. LOPEZ-GONZALEZ;M. L. ROJAS-CERVANTES;R. M. MARTIN-ARANDA .STUDY OF OXYGEN-CONTAINING GROUPS IN A SERIES OF GRAPHITE OXIDES: PHYSICAL AND CHEMICAL CHARACTERIZATION[J].Carbon: An International Journal Sponsored by the American Carbon Society,1995(11):1585-1592. |
| [24] | Figueiredo JL;Pereira MFR;Freitas MMA et al.Modification of the surface chemistry of activated carbons[J].Carbon,1999,37(09):1379-1389. |
| [25] | Zielke U.;Hoffman WP.;Huttinger KJ. .SURFACE-OXIDIZED CARBON FIBERS .1. SURFACE STRUCTURE AND CHEMISTRY[J].Carbon: An International Journal Sponsored by the American Carbon Society,1996(8):983-998. |
| [26] | Dilsiz Nursel;Wightman J.P. .Surface analysis of unsized and sized carbon fibers[J].Carbon: An International Journal Sponsored by the American Carbon Society,1999(7):1105-1114. |
| [27] | Lennon D.;Lundie DT.;Jackson SD.;Kelly GJ.;Parker SF. .Characterization of activated carbon using X-ray photoelectron spectroscopy and inelastic neutron scattering spectroscopy[J].Langmuir: The ACS Journal of Surfaces and Colloids,2002(12):4667-4673. |
| [28] | A.Celzard;S.Schneider;J.F.Mareche .Densification of expanded graphite[J].Carbon: An International Journal Sponsored by the American Carbon Society,2002(12):2185-2191. |
| [29] | Celzard A.;Mareche JF.;Furdin G. .Surface area of compressed expanded graphite[J].Carbon: An International Journal Sponsored by the American Carbon Society,2002(14):2713-2718. |
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