以金属镍铁为催化剂，通过化学气相沉积法高选择性地制备了纳米洋葱碳( CNOs)。所制备的CNOs为内嵌金属核心与中空CNOs的混合物，常规的酸洗-煅烧纯化工艺往往会造成外层碳壳的破坏，形成无定型碳。通过对CNOs的铁磁性分析，提出了磁选分离工艺，可以有效地将内嵌金属的CNOs与空心CNOs分离，分离后空心CNOs纯度在95%以上。
Carbon nano onions ( CNOs ) were high selectively synthesized through chemical vapor deposition method using Ni-Fe metal as catalysts. As harvested CNOs contains metal core inside and hollowed CNOs. Amorphous is formed with the broken of carbon shells through the normal acid wash -burning technology. The magnetic properties of CNOs were analysised and magnetic separating technology was proposed. The results show that CNOs with metal core inside can be separated from the hollowed CNOs efficiently using this method and the purification rate reaches up to 95%.
参考文献
| [1] | Ugarte D..ONION-LIKE GRAPHITIC PARTICLES[J].Carbon: An International Journal Sponsored by the American Carbon Society,19957(7):989-993. |
| [2] | Chen XH.;Wang JX.;Yang HS.;Wu GT.;Zhang XB.;Peng JC.;Li WZ.;Deng FM..New method of carbon onion growth by radio-frequency plasma-enhanced chemical vapor deposition[J].Chemical Physics Letters,20013-4(3-4):201-204. |
| [3] | Chenguang Zhang;Jiajun Li;Chunsheng Shi.The efficient synthesis of carbon nano-onions using chemical vapor deposition on an unsupported Ni-Fe alloy catalyst[J].Carbon: An International Journal Sponsored by the American Carbon Society,20114(4):1151-1158. |
| [4] | N. Sano;H. Wang;I. Alexandrou;M. Chhowalla;K. B. K. Teo;G. A. J. Amaratunga;K. Iimura.Properties of carbon onions produced by an arc discharge in water[J].Journal of Applied Physics,20025(5):2783-2788. |
| [5] | 邢刚;贾申利;史宗谦.水或液氮中电弧放电制备炭纳米材料[J].新型炭材料,2007(4):337-341. |
| [6] | M.Bystrzejewski;M.H.Rummeli;T.Gemming;H.Lange;A.Huczko.洋葱状炭纳米粒子的无催化剂合成[J].新型炭材料,2010(1):1-8. |
| [7] | WEN LIU;YANG MIAO;QINGSEN MENG.Synthesis of Onion-Like Fullerenes by Arc Discharge in Non-Toxic Organic Liquid[J].Integrated Ferroelectrics,2012:77-82. |
| [8] | Mykhailiv, Olena;Imierska, Monika;Petelczyc, Martyna;Echegoyen, Luis;Plonska-Brzezinska, Marta E..Chemical versus Electrochemical Synthesis of Carbon Nano-onion/Polypyrrole Composites for Supercapacitor Electrodes[J].Chemistry: A European journal,201515(15):5783-5793. |
| [9] | 张晨光;赵乃勤;师春生.碳纳米洋葱制备方法的研究进展[J].材料导报,2009(z1):121-125,130. |
| [10] | Pech, D.;Brunet, M.;Durou, H.;Huang, P.;Mochalin, V.;Gogotsi, Y.;Taberna, P.-L.;Simon, P..Ultrahigh-power micrometre-sized supercapacitors based on onion-like carbon[J].Nature nanotechnology,20109(9):651-654. |
| [11] | Zhibin Lei;Zhongwei Chen;X. S. Zhao.Growth of Polyaniline on Hollow Carbon Spheres for Enhancing Electrocapacitance[J].The journal of physical chemistry, C. Nanomaterials and interfaces,201046(46):19867-19874. |
| [12] | Yang Gao;Yun Shen Zhou;Min Qian.Chemical activation of carbon nano-onions for high-rate supercapacitor electrodes[J].Carbon: An International Journal Sponsored by the American Carbon Society,2013:52-58. |
| [13] | Donath E.;Caruso F.;Davis SA.;Mohwald H.;Sukhorukov GB..Novel hollow polymer shells by colloid-templated assembly of polyelectrolytes[J].Angewandte Chemie International Edition,199816(16):2202-2205. |
| [14] | Chunnian He;Long Chen;Chunsheng Shi.Direct synthesis of amorphous carbon nanotubes on Fe_(76)Si_9B_(10)P_5 glassy alloy particles[J].Journal of Alloys and Compounds: An Interdisciplinary Journal of Materials Science and Solid-state Chemistry and Physics,2013:282-288. |
| [15] | K. W. Street;M. Marchetti;R. L. Vander Wal;A. J. Tomasek.Evaluation of the tribological behavior of nano-onions in Krytox 143AB[J].Tribology letters,20041/2(1/2):143-149. |
| [16] | Jan M. Skowronski;Krzysztof Knofczynski.Catalytically graphitized glass-like carbon examined as anode for lithium-ion cell performing at high charge/discharge rates[J].Journal of Power Sources,20091(1):38-44. |
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