本文以七水合硫酸亚钴(CoSO4·7H2O)和无水亚硫酸钠(Na2SO3)为原料,以水合肼(N2H4·H2O)为还原剂,利用水热法合成了立方晶系的六角片状Co9S8单晶.运用X射线衍射(XRD)、透射电子显微镜(TEM)和振动样品磁强计(VSM)对产物进行了表征.结果表明,产物主要由直径为0.8～1.5μm六角片状Co9S8单晶组成,合成单晶的温度为180℃,时间为72h.在室温下,产物的饱和磁化率(Ms)和矫顽力(Hc)分别为65emu/g和333 Oe.
参考文献
| [1] | Geller B S .Refinement of the Crystal Structure of Co9S8[J].Acta Crystallographica,1962,15:1195. |
| [2] | Grzesik Z. .On the defect diffusivity in Co9-xS8[J].Solid state ionics,2001(Special Issue SI):295-299. |
| [3] | Chauke HR.;Nguyen-Manh D.;Ngoepe PE.;Pettifor DG.;Fries SG. .Electronic structure and stability of the pentlandites Co9S8 and (Fe,Ni)(9)S-8 - art. no. 155105[J].Physical Review.B.Condensed Matter,2002(15):5105-0. |
| [4] | Kim K;Dwight K;Wold A .Preparation and Properties of the Co-S System Close to Co9S8[J].Materials Research Bulletin,1981,16:1319. |
| [5] | Yamada H;Terao K;Aoki M.Electronic Structure and Magnetic Properties of CoS2[J].Journal of Magnetism and Magnetic Materials,1998:177-181,607. |
| [6] | Zhan J H;Yang X G;Xie Y 等.Hydrazine-controlled Hydrothermal Synthesis of Co9S8 from a Homogeneous Solution[J].Journal of Materials Research,1999,14:4418. |
| [7] | Wold A;Dwight K;KimK 等.Temperature Synthesis and Properties of Co9S8,Ni3S2,and Fe7S8[J].Journal of Inorganic Chemistry(in Chinese),1984,23(07):873. |
| [8] | Zhan JH;XieY;YangX G 等.Hydrazine-assisted Low-temperature Hydrothermal Preparation of Nanocrystalline Jaipurite[J].Journal of Solid State Chemistry,1999,146:36. |
| [9] | Qian XF.;Wang C.;Xie Y.;Qian YT.;Zhang XM. .The preparation and phase transformation of nanocrystalline cobalt sulfides via a toluene thermal process[J].Inorganic Chemistry: A Research Journal that Includes Bioinorganic, Catalytic, Organometallic, Solid-State, and Synthetic Chemistry and Reaction Dynamics,1999(11):2621-2623. |
| [10] | 李汶军,施尔畏,仲维卓,郑燕青,殷之文.水热条件下氧化物枝蔓晶的形成[J].人工晶体学报,1999(01):54-57. |
| [11] | 韦志仁,董国义,李志强,张华伟,王立明,佟鑫刚.水热法合成α-Al2O3晶体[J].人工晶体学报,2002(02):90-93. |
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