微纳米结构Co_3O_4陶瓷材料的合成及介电性能研究
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摘要
本文采用液相和煅烧相结合的方法合成了微纳米结构Co_3O_4陶瓷材料,并对其微观结构和介电性能进行了研究。通过X-射线衍射(XRD),扫描电镜(SEM),透射电镜(TEM)和高分辨透射电镜(HRTEM)表征手段,对产品的微观结构进行了表征。并进一步对两种微纳米结构Co_3O_4的介电性能进行了研究,研究结果表明多孔花状结构Co_3O_4材料具有良好的介电性能。
Micro-nanostructure Co_3O_4 ceramics were prepared by the combination of solution-phase method and calcination treatment. The microstructure and dielectric properties of the as-prepared samples were then characterized by XRD, SEM, TEM and HRTEM. Furthermore,the dielectric properties of the Co_3O_4 powders of two different micro-nanostructures were researched. Results show the porous flower-like Co_3O_4 ceramics had excellent performances.
Micro-nanostructure Co_3O_4 ceramics were prepared by the combination of solution-phase method and calcination treatment. The microstructure and dielectric properties of the as-prepared samples were then characterized by XRD, SEM, TEM and HRTEM. Furthermore,the dielectric properties of the Co_3O_4 powders of two different micro-nanostructures were researched. Results show the porous flower-like Co_3O_4 ceramics had excellent performances.
引文
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[2]LIU Y,MI C H,SU L H,et al.Hydrothermal synthesis of Co3O4microspheres as anode material for lithium-ion batteries[J].Electrochimica Acta,2008,53(5):2507-2513.
[3]LOU X W,DENG D,LEE J Y,et al.Thermal formation of mesoporous single-crystal Co3O4 nano-needles and their lithium storage properties[J].Journal of Materials Chemistry,2008,18(37):4397-4401.
[4]LI L,TIAN T,JIANG J,et al.Hierarchically porous Co3O4architectures with honeycomb-like structures for efficient oxygen generation from electrochemical water splitting[J].Journal of Power Sources,2015,294:103-111.
[5]FENG Y,YU X Y,PAIK U,Formation of Co3O4 microframes from MOFs with enhanced electrochemical performance for lithium storage and water oxidation[J].Chemical Communications,2016,52(37):6269-6272.
[6]LI Y G,TAN B,WU Y Y,Mesoporous Co3O4 nanowire arrays for lithium ion batteries with high capacity and rate capability[J].Nano Letters,2008,8(1):265-270.
[7]周海,康敏,王曼丽.等.草酸根作用下Co3O4八面体的控制合成[J],人工晶体学报,2017,46(10):2083-2089.ZHOU H,KANG M,WANG M L,et al.Journal of Synthetic Crystals,2017,46(10):2083-2089.
[8]王永亮,刘立柱,马荣鑫.等.一步法制备Co3O4/石墨烯纳米复合材料的研究[J],陶瓷学报,2017,38(4):489-501.WANG Y L,LIU L Z,MA R X,et al.Journal of Ceramics,2017,38(4):489-501.
[9]赵清清,王静,杨金萍.等.溶胶-凝胶自蔓延法制备纳米Co3O4的研究[J].陶瓷学报,2015,36(1):9-13.ZHAO Q Q,WANG J,YANG J P,et al.Journal of Ceramics,2015,36(1):9-13.
[10]TIAN L,ZOU H,FU J,et al.Topotactic conversion route to mesoporous quasi-single-crystalline Co3O4 nanobelts with optimizable electrochemical performance[J].Advanced Functional Materials,2010,20(4):617-623.
[11]LI W Y,XU L N,CHEN J,Co3O4 nanomaterials in lithium-ion batteries and gas sensors[J].Advanced Functional Materials,2005,15(5):851-857.
[12]PARK J S,SHEN X P,WANG G X,Solvothermal synthesis and gas-sensing performance of Co3O4 hollow nanospheres[J].Sensors and Actuators B-Chemical,2009,136(2):494-498.
[13]MA M X,PAN Z Y,GUO L,et al.Porous cobalt oxide nanowires:Notable improved gas sensing performances[J].Chinese Science Bulletin,2012,57(31):4019-4023.
[14]MA M X,PAN Z Y,WANG W J,et al.Microstructure and gas-sensing property of the ordered mesoporous Co3O4[J].Journal of Nanoscience and Nanotechnology,2013,13(2):864-868.