共查询到19条相似文献,搜索用时 196 毫秒
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利用溶剂热法在反应性基片(金属基片)上制备无机微米(纳米)晶薄膜是最近发展起来的一种制备薄膜的新方法。该方法操作简单,可以通过调整溶剂、表面活性剂、温度等反应条件来控制薄膜的形状。作者通过实验用溶剂热法在铜基片上制备了Cu2Se薄膜。 相似文献
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以乙酸锌和Se粉为原料,环己酮为溶剂,于180 ℃反应24 h制得黄色纳米球ZnSe,其结构和性能经XRD,SEM及TEM表征. 相似文献
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用水热和溶剂热法(甲苯作溶剂)合成了LiSrAlF6单相多晶.研究了反应物摩尔比、反应温度和反应时间等对产物的影响.采用环境扫描电子显微镜观察到LiSrAlF6晶体的形貌特征为六角晶形,并聚集成花朵形.试探了LiCaAlF6多晶粉末的水热和溶剂热合成,但未能获得纯相产物. 相似文献
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本文综述了溶剂热法合成多种碳纳米管、纳米电缆、纳米棒、纳米球和纳米空心锥的研究现状。350 ℃下用金属钾还原六氯代苯,在用不同催化剂时,可分别得到碳纳米管和碳球,碳球的形成可以解释为石墨层的微条卷曲而成。600 ℃下金属镁还原乙醇得到了竹节状和Y-型碳纳米管。500 ℃下还原四氯化碳和碳酸钠可得到平均直径为100 nm的碳纳米管。700 ℃下金属锌还原乙醚制成了左右螺旋型交织的碳纳米管。在硫的存在下,200 ℃以下二茂铁热解成非晶碳纳米管和Fe/非晶碳纳米同轴电缆。 相似文献
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IntroductionIn recent years,Ge and its oxide haveattracted a considerable interest for their potentialapplication in optical filterdesign[1— 6 ] .To fabricateoptical devices,sometimes it is necessary todevelop a Ge O2 thin film on the surface of othermaterial,e.g.,silica.It is well known that silicasurface is quite inert and it is pretty difficult tosynthesize thin inorganic films on it.Inorganic thinfilms on silica surface are generally prepared byphysical methods,such as ion beam reactive… 相似文献
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A novel three-dimensional Zn(Ⅱ) coordination polymer, Zn3(C2H2N3)4(SiF6), has been synthesized under solvothermal conditions using 1H-1,2,4-triazole-3-carboxylic acid and zinc fluoride as the starting materials. The complex has been characterized by elemental analysis, IR, TG analysis and single-crystal X-ray diffraction analysis. The complex crystallizes in the tetragonal I4/mmm space group with a=11.592(0), c=7.526(1), V=1011.3(2)3 , Z=2, Mr=610.46, Dc=2.005 g/cm3 and F(000)=596. The final R=0.0312 and wR=0.067 for 319 observed reflections with I>2σ(I). In the title complex, the Zn centers are interconnected by μ 3 -bridging triazole ligands to form a microporous three-dimensional metal-organic framework. 相似文献
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溶剂热法合成CdS纳米晶及其光学性质研究 总被引:1,自引:0,他引:1
以硫脲和醋酸镉为原料,采用溶剂热法在不同的反应介质和温度下合成了CdS纳米晶,比较了单胺与双胺对合成CdS纳米晶形貌的影响。采用透射电镜(TEM)、X射线粉末衍射仪(XRD)和荧光分光光度计(PL)对合成的CdS纳米晶结构和光学性能进行表征。结果表明:反应温度和反应介质对其形貌有影响,在双胺的条件下,60℃时合成了纯相的六方相CdS纳米棒;双胺条件下更易生成纳米棒,且高温下晶体的结晶性更好。PL分析表明,水(溶剂)热法制备的CdS的荧光光谱图与大多数CdS类似,均在440~480 nm和550 nm处存在发射峰,但较宽的发射峰蓝移说明材料的光学性质受到材料形貌和制备方法的影响。 相似文献
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以硫醇为螯合剂, 在溶剂热条件下合成了两种层状硫代亚碲酸盐KAgTeS3 (1)和RbAgTeS3 (2). X射线单晶解析表明, 1和2是类质同晶化合物. 在晶体结构中, 银硫四面体通过共用顶点形成无限的平行链, 在相邻链中银硫四面体取向相反, 这些链与链由三角锥配位的碲互相连接形成阴离子层状结构, 阳离子在阴离子层间. 1的结晶学数据为: Mr=370.75, P21/c, a=0.73639(6) nm, b=1.06468(8) nm, c=0.85203(6) nm, β=106.4640(10)°, V=0.64062(8) nm3, Z=4, R(F)=4.44%, wR(F2)=11.66%. 2的结晶学数据: Mr=417.12, P21/c, a=0.75531(12) nm, b=1.07076(7) nm, c=0.8583(2) nm, β=106.497(6)°, V=0.66558(19) nm3, Z=4, R(F)=6.00%, wR(F2)=15.43%. DSC及紫外-可见漫反射光谱研究表明, 这两种化合物为半导体, 并具有很好的热稳定性. 相似文献
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Goldelectrodeisincommonuseinelectro-analysisbecauseofitsstabilityandcorrosionresisting.Herewereportanovelmethodforpreparationofgoldthinfilmelectrodemodifiedbymicrobe.Previousworksontheuseofmicrobetoadsorbthecompoundsofgoldandothermetalsweremainlyfocusedonrecoveryofnoblemetalsandtreatmentofwastedwater"=.Thebacteriamodifiedelectrodeshavebeenreportedindetectionofenzyme'andBOD'.Nowwereportthemethodofapplyingmicrobetopreparethegoldthinfilmelectrode.Thepreparationmethodissimpleandthegoldthinfilmel… 相似文献
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DunQingWANG DaiRongCHEN XiuLingJIAO 《中国化学快报》2004,15(1):79-82
Pyrite nickel disulfide and millerite nickel monosulfide have been successfully prepared by solvothermal method based on the reaction of Ni(NO3)26H2O and H2NC(S)NH2 in benzene and ethylenediamine (EDA). The final products were characterized by X-ray powder diffraction(XRD), transmission electron microscopy (TEM), scanning electron microscopy (SEM). The effects of the solvent, reaction temperature and time on the morphology and phase of the products have been discussed. 相似文献
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WU Ke-Jun ;WANG Ming-Sheng ;ZOU Jian-Ping ;XU Gang ;DING Tong-Yong ;GUO Guo-Cong ;HUANG Jin-Shun 《结构化学》2008,27(4):461-466
Mercury telluride (HgTe) nanoplatelets were obtained via a facile solvothermal reaction of mercury(I) chloride and tellurium powder in ethylenediamine (en). Mercury(I) was first applied as the mercury sources to prepare nanocrystal HgTe; moreover, the proposed mechanism for the fabrication of the sample was discussed in detail. The HgTe nanoplatelets were characterized by powder X-ray diffraction (PXRD), scanning electron microscopy (SEM), transmission electron microscopy (TEM), high-resolution transmission electron microscopy (HRTEM) and Fourier transform infrared spectroscopy (FT-IR). The absence of IR absorption may render the title nanocrystal useful as an IR transparent material in the region. 相似文献