Fe3O4-modified Fe3O4@RGO composites with different sizes were synthesized by changing the ratio of different solvent via solvothermal method.Briefly,using ethylene glycol and diethylene glycol as solvent,FeCl3 as original material and graphene oxide as substrate.And then the MnFe2O4@RGO and Fe3O4/MnO2@RGO composites were successfully prepared by hydrothermal reduction one-step method and oxidation-reduction two-step method.The structure and morphology of as-prepared MnFe2O4@RGO and Fe3O4/MnO2@RGO were characterized by X-ray diffraction (XRD),scanning electron microscopy (SEM) and energy dispersive spectroscopy (EDS).Moreover,the electrochemical properties of the as-prepared composites were tested respectively by electrochemical workstation.The results shown that the electrochemical performances of Fe3O4@RGO were enhanced by the loading of MnO2,and Fe/Mn mass ratio of 3∶8 exhibited enhanced electrochemical performance and better stability.
Li Ying, Xu Chao, Kang Junjun, Xu Wenkai
. Preparation and electrochemical property of Mn/Fe doped graphene composite[J]. New Chemical Materials, 2020
, 48(11)
: 54
-59
.
DOI: 10.19817/j.cnki.issn 1006-3536.2020.11.012
[1] Jiao J,Qiu W,Tang J,et al.Synthesis of well-defined Fe3O4 nanorods/N-doped graphene for lithium-ion batteries[J].Nano Research,2016,9(5):1256-1266.
[2] Yang J,Zhu G,Liu Y,et al.Fe3O4-Decorated Co9S8 nanoparticles in situ grown on reduced graphene oxide:a new and efficient electrocatalyst for oxygen evolution reaction[J].Advanced Functional Materials,2016,26(26):4712-4721.
[3] Fan H,Niu R,Duan J,et al.Fe3O4@Carbon nanosheets for all-solid-state supercapacitor electrodes[J].ACS Applied Materials & Interfaces,2016,8(30):19475-19483.
[4] Li L,Kovalchuk A,Fei H,et al.Enhanced cycling stability of lithium-ion batteries using graphene-wrapped Fe3O4-graphene nanoribbons as anode materials[J].Advanced Energy Materials,2015,5(14).
[5] 程三旭,李克智,齐乐华等.反向共沉淀法制备纳米Fe3O4及其粒径控制[J].材料研究学报,2011(5):489-494.
[6] Qiao H,Luo L,Chen K,et al.Electrospun synthesis and lithium storage properties of magnesium ferrite nanofibers[J].Electrochimica Acta,2015,160:43-49.
[7] 李雪爱,王春生,韩喜江.原位化学沉淀法制备Fe3O4-石墨复合材料的吸波性能[J].材料工程,2015(5):44-49.
[8] Jiang B,Han C,Li B,et al.In-situ crafting of ZnFe2O4 nanoparticles impregnated within continuous carbon network as advanced anode materials[J].ACS Nano,2016,10(2):2728-2735.
[9] 韩笑,王源升.乳液聚合条件对纳米Fe3O4/导电聚苯胺磁导率的影响[J].材料工程,2008(4):11-14.
[10] Xu W,Zhao K,Niu C,et al.Heterogeneous branched core-shell SnO2-PANI nanorod arrays with mechanical integrity and three dimentional electron transport for lithium batteries[J].Nano Energy,2014,8:196-204.
[11] 陈菲,陈爱华,赵永彬.纳米Fe3O4/聚吡咯复合材料的形貌可控制备及电磁特性[J].复合材料学报,2015(4):955-961.
[12] Ju Z,Guo C,Qian Y,et al.Direct large-scale synthesis of 3D hierarchical mesoporous NiO microspheres as high-performance anode materials for lithium ion batteries[J].Nanoscale,2014,6(6):3268-3273.
[13] Rao C N R,Gopalakrishnan K,Govindaraj A.Synthesis,properties and applications of graphene doped with boron,nitrogen and other elements[J].Nano Today,2014,9(3):324-343.
[14] Khan M,Tahir M N,Adil S F,et al.Graphene based metal and metal oxide nanocomposites:synthesis,properties and their applications[J].Journal of Materials Chemistry A,2015,3(37):18753-18808.
[15] Kumar R,Singh R K,Vaz A R,et al.Self-assembled and one-step synthesis of interconnected 3D network of Fe3O4/reduced graphene oxide nanosheets hybrid for high-performance supercapacitor electrode[J].ACS Applied Materials & Interfaces,2017,9(10):8880-8890.
[16] Wang Y,Ma Y,Guo G,et al.Facile synthesis of Fe3O4/graphene nanosheets with high conductivity for application in supercapacitors[J].International Journal of Electrochemical Science,2017,12(3):2135-2144.
[17] Ma W,Chen S,Yang S,et al.Hierarchical MnO2 nanowire/graphene hybrid fibers with excellent electrochemical performance for flexible solid-state supercapacitors[J].Journal of Power Sources,2016,306:481-488.
[18] Zhang Z,Xiao F,Wang S.Hierarchically structured MnO2/graphene/carbon fiber and porous graphene hydrogel wrapped copper wire for fiber-based flexible all-solid-state asymmetric supercapacitors[J].Journal of Materials Chemistry A,2015,3(21):11215-11223.
[19] Xiong C,Li T,Dang A,et al.Two-step approach of fabrication of three-dimensional MnO2-graphene-carbon nanotube hybrid as a binder-free supercapacitor electrode[J].Journal of Power Sources,2016,306:602-610.
[20] Chen S,Zhu J,Wu X,et al.Graphene oxide-MnO2 nanocomposites for supercapacitors[J].ACS Nano,2010,4(5):2822-2830.
[21] Zheng B,Huang T,Kou L,et al.Graphene fiber-based asymmetric micro-supercapacitors[J].Journal of Materials Chemistry A,2014,2(25):9736-9743.
[22] Chen Q,Meng Y,Hu C,et al.MnO2-modified hierarchical graphene fiber electrochemical supercapacitor[J].Journal of Power Sources,2014,247:32-39.
[23] Tang M,Xia F,Gao C,et al.Preparation of magnetically recyclable CuFe2O4/RGO for catalytic hydrolysis of sodium borohydride[J].International Journal of Hydrogen Energy,2016,41(30):13058-13068.
