NiCo_2S_4@ACF异质电极材料的绿色制备及其超级电容性能研究
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摘要
传统的NiCo_2S_4硫化过程需要高温加热,耗能较大,并且单纯的硫化物导电性差。本工作通过绿色环保的室温硫化法成功制备出以活性炭纤维(ACF)为核, NiCo_2S_4为壳的复合异质结电极材料(NiCo_2S_4@ACF)。NiCo_2S_4@ACF复合电极材料的层状结构,有效增大了与电解液的接触面积,改善了电子的传输路径,使其具有更优良的电化学性能。当电流密度为1 A/g时,其比电容值高达1541.6 F/g (678μF/cm2)。另外, NiCo_2S_4@ACF和ACF分别作正负极组装成的非对称超级电容器(Asymmetric Supercapacitors, ASC)展现了良好的电化学性能:能量密度高,当功率密度为800 W/kg时,能量密度高达49.38 Wh/kg;循环性能稳定,循环充放电2000圈后比电容仍能保持90.27%。研究表明, NiCo_2S_4@ACF复合电极材料是一种应用前景广阔的超级电容器电极材料。
Traditional NiCo_2S_4 vulcanization process requires high-temperature and high energy supply, and has disadvantage of low conductivity. In this study, an environmental friendly vulanization method was utilized to pr epare unique NiCo_2S_4@ACF core-shell heterstructure materials with activated carbon fiber(ACF) as skeleton at room temperature. NiCo_2S_4@ACF composite electrode material owns layered structures, which can effectively expand contact area with electrolyte, improve electron transmission path, and better create electrochemical perfo rmance. Specific capacitance of NiCo_2S_4@ACF composite electrode materials reached 1541.6 F/g(678 μF/cm2) at the current density of 1 A/g. In addition, the asymmetric supercapacitors(ASC) device fabricated with NiCo_2S_4@ACF as positive electrode and ACF as negative electrode exhibited energy density as hig h as 49.38 Wh/kg at the power density of 800 W/kg, and preeminent cycle stability up to 90.28% after 2000 cycles. All these data demonstrated that NiCo_2S_4@ACF is a promising potential application in the field of high-performance supercapacitors in the future.
Traditional NiCo_2S_4 vulcanization process requires high-temperature and high energy supply, and has disadvantage of low conductivity. In this study, an environmental friendly vulanization method was utilized to pr epare unique NiCo_2S_4@ACF core-shell heterstructure materials with activated carbon fiber(ACF) as skeleton at room temperature. NiCo_2S_4@ACF composite electrode material owns layered structures, which can effectively expand contact area with electrolyte, improve electron transmission path, and better create electrochemical perfo rmance. Specific capacitance of NiCo_2S_4@ACF composite electrode materials reached 1541.6 F/g(678 μF/cm2) at the current density of 1 A/g. In addition, the asymmetric supercapacitors(ASC) device fabricated with NiCo_2S_4@ACF as positive electrode and ACF as negative electrode exhibited energy density as hig h as 49.38 Wh/kg at the power density of 800 W/kg, and preeminent cycle stability up to 90.28% after 2000 cycles. All these data demonstrated that NiCo_2S_4@ACF is a promising potential application in the field of high-performance supercapacitors in the future.
引文
[1]ZHU Y R,JI X B,WU Z P,et al.Spinel NiCo2O4 for use as a high-performance supercapacitor electrode material:understanding of its electrochemical properties.Journal of Power Sources,2014,267:888-900.
[2]LIU X H,WEN Z B,WU D B,et al.Tough BMIMCl-based ionogels exhibiting excellent and adjustable performance in hightemperature supercapacitors.Journal of Materials Chemistry A,2014,2(30):11569-11573.
[3]LI Y H,CAO L J,QIAO L,et al.Ni-Co sulfide nanowires on nickel foam with ultrahigh capacitance for asymmetric supercapacitors.J.Mater.Chem.A,2014,2(18):6540-6548.
[4]KOTZ R,CARLEN M.Principles and applications of electrochemical capacitors.Electrochimica Acta,2000,45(15):2483-2498.
[5]WU Z S,WANG D W,REN W C,et al.Anchoring hydrous RuO2on graphene sheets for high-performance electrochemical capacitors.Advanced Functional Materials,2010,20(20):3595-3602.
[6]YE X D,HU J G,YANG Q,et al.Preparation and properties of NiO/AC asymmetric capacitor.Journal of Inorganic Materials,2014,29(3):250-256.
[7]ZHANG L J,GAO B,ZHANG X G.Pyrolysis preparation of nickel oxide and its electrochemical capacitance.Journal of Inorganic Materials,2011,26(4):398-402.
[8]SAMO M,TROISI A.Supercapacitors based on high surface area MoS2 and MoS2-Fe3O4 nanostructures supported on physical exfoliated graphite.Journal of Nanoscience and Nanotechnology,2017,17(6):3735-3743.
[9]CHANG Y H,HAN G Y,XIAO Y M,et al.Internal tandem flexible and compressible electrochemical capacitor based on polypyrrole/carbon fibers.Electrochimica Acta,2017,257:335-344.
[10]MAIER M A,SURESH BABU R,SAMPAIO D M,et al.Binderfree polyaniline interconnected metal hexacyanoferrates nanocomposites(metal?=?Ni,Co)on carbon fibers for flexible supercapacitors.Journal of Materials Science:Materials in Electronics,2017,28(23):17405-17413.
[11]PANG H,WEI C Z,MA Y H,et al.Nickel phosphite superstructures assembled by nanotubes:original application for effective electrode materials of supercapacitors.ChemPlusChem,2013,78(6):546-553.
[12]LIU X B,WU Z P,YIN Y H.Hierarchical NiCo2S4@PANIcore/shell nanowires grown on carbon fiber with enhanced electrochemical performance for hybrid supercapacitors.Chemical Engineering Journal,2017,323:330-339.
[13]HU Q Q,GU Z X,ZHENG X T,et al.Three-dimensional Co3O4@NiO hierarchical nanowire arrays for solid-state symmetric supercapacitor with enhanced electrochemical performances.Chemical Engineering Journal,2016,304:223-231.
[14]ZHANG Y,XU J,ZHENG Y Y,et al.NiCo2S4@NiMoO4core-shell heterostructure nanotube arrays grown on Ni foam as a binder-free electrode displayed high electrochemical performance with high capacity.Nanoscale Res.Lett.,2017,12(1):412-420.
[15]YAN M L,YAO Y D,WEN J Q,et al.Construction of a hierarchical NiCo2S4@PPy core-shell heterostructure nanotube array on Ni foam for a high-performance asymmetric supercapacitor.ACSAppl.Mater.Interfaces,2016,8(37):24525-24535.
[16]ZHU Y R,JI X B,WU Z B,et al.NiCo2S4 hollow microsphere decorated by acetylene black for high-performance asymmetric supercapacitor.Electrochimica Acta,2015,186:562-571.
[17]SHEN L F,WANG J,XU G Y,et al.NiCo2S4 nanosheets grown on nitrogen-doped carbon foams as an advanced electrode for supercapacitors.Advanced Energy Materials,2015,5(3):1400977-1-7.
[18]LI D L,GONG Y N,PAN C X.Facile synthesis of hybrid CNTs/NiCo2S4 composite for high performance supercapacitors.Sci.Rep.,2016,6:29788-29794.
[19]MA X J,KONG L B,ZHANG W B,et al.Design and synthesis of 3D Co3O4@MMoO4(M=Ni,Co)nanocomposites as highperformance supercapacitor electrodes.Electrochimica Acta,2014,130:660-669.
[20]WAN H Z,JIANG J J,YU J W,et al.NiCo2S4 porous nanotubes synthesis via sacrificial templates:high-performance electrode materials of supercapacitors.CrystEngComm,2013,15(38):7649-7651.
[21]HE X Y,LI R M,LIU J Y,et al.Hierarchical FeCo2O4@NiCo layered double hydroxide core/shell nanowires for high performance flexible all-solid-state asymmetric supercapacitors.Chemical Engineering Journal,2018,334:1573-1583.
[22]ZHANG G X,CHEN Y M,HE Z N,et al.Surfactant dependence of nanostructured NiCo2S4 films on Ni foam for superior electrochemical performance.Journal of Inorganic Materials,2018,33(3):289-294.
[23]TANG Z,TANG C H,GONG H.A high energy density asymmetric supercapacitor from nano-architectured Ni(OH)2/carbon nanotube electrodes.Advanced Functional Materials,2012,22(6):1272-1278.
[24]CHEN R N,LIU L,ZHOU J S,et al.High-performance nickelcobalt-boron material for an asymmetric supercapacitor with an ultrahigh energy density.Journal of Power Sources,2017,341:75-82.
[25]ZHANG Y F,PARK M,KIM H Y,et al.Moderated surface defects of Ni particles encapsulated with NiO nanofibers as supercapacitor with high capacitance and energy density.J.Colloid Interface Sci.,2017,500:155-163.
[26]HOU L R,HUA H,BAO R Q,et al.Anion-exchange formation of hollow NiCo2S4 nanoboxes from mesocrystalline nickel cobalt carbonate nanocubes towards enhanced pseudocapacitive properties.ChemPlusChem,2016,81(6):557-563.
[27]FENG Y,ZHENG C,YUAN X H,et al.Core-shell structure ultrathin NiCo2S4@graphene as high performance positive electrode for hybrid supercapacitors.Journal of Materials Chemistry A,2018,6(14):5856-5861.
[28]WANG F P,LI G F,ZHOU Q Q,et al.One-step hydrothermal synthesis of sandwich-type NiCo2S4@reduced graphene oxide composite as active electrode material for supercapacitors.Applied Surface Science,2017,425:180-187.
[2]LIU X H,WEN Z B,WU D B,et al.Tough BMIMCl-based ionogels exhibiting excellent and adjustable performance in hightemperature supercapacitors.Journal of Materials Chemistry A,2014,2(30):11569-11573.
[3]LI Y H,CAO L J,QIAO L,et al.Ni-Co sulfide nanowires on nickel foam with ultrahigh capacitance for asymmetric supercapacitors.J.Mater.Chem.A,2014,2(18):6540-6548.
[4]KOTZ R,CARLEN M.Principles and applications of electrochemical capacitors.Electrochimica Acta,2000,45(15):2483-2498.
[5]WU Z S,WANG D W,REN W C,et al.Anchoring hydrous RuO2on graphene sheets for high-performance electrochemical capacitors.Advanced Functional Materials,2010,20(20):3595-3602.
[6]YE X D,HU J G,YANG Q,et al.Preparation and properties of NiO/AC asymmetric capacitor.Journal of Inorganic Materials,2014,29(3):250-256.
[7]ZHANG L J,GAO B,ZHANG X G.Pyrolysis preparation of nickel oxide and its electrochemical capacitance.Journal of Inorganic Materials,2011,26(4):398-402.
[8]SAMO M,TROISI A.Supercapacitors based on high surface area MoS2 and MoS2-Fe3O4 nanostructures supported on physical exfoliated graphite.Journal of Nanoscience and Nanotechnology,2017,17(6):3735-3743.
[9]CHANG Y H,HAN G Y,XIAO Y M,et al.Internal tandem flexible and compressible electrochemical capacitor based on polypyrrole/carbon fibers.Electrochimica Acta,2017,257:335-344.
[10]MAIER M A,SURESH BABU R,SAMPAIO D M,et al.Binderfree polyaniline interconnected metal hexacyanoferrates nanocomposites(metal?=?Ni,Co)on carbon fibers for flexible supercapacitors.Journal of Materials Science:Materials in Electronics,2017,28(23):17405-17413.
[11]PANG H,WEI C Z,MA Y H,et al.Nickel phosphite superstructures assembled by nanotubes:original application for effective electrode materials of supercapacitors.ChemPlusChem,2013,78(6):546-553.
[12]LIU X B,WU Z P,YIN Y H.Hierarchical NiCo2S4@PANIcore/shell nanowires grown on carbon fiber with enhanced electrochemical performance for hybrid supercapacitors.Chemical Engineering Journal,2017,323:330-339.
[13]HU Q Q,GU Z X,ZHENG X T,et al.Three-dimensional Co3O4@NiO hierarchical nanowire arrays for solid-state symmetric supercapacitor with enhanced electrochemical performances.Chemical Engineering Journal,2016,304:223-231.
[14]ZHANG Y,XU J,ZHENG Y Y,et al.NiCo2S4@NiMoO4core-shell heterostructure nanotube arrays grown on Ni foam as a binder-free electrode displayed high electrochemical performance with high capacity.Nanoscale Res.Lett.,2017,12(1):412-420.
[15]YAN M L,YAO Y D,WEN J Q,et al.Construction of a hierarchical NiCo2S4@PPy core-shell heterostructure nanotube array on Ni foam for a high-performance asymmetric supercapacitor.ACSAppl.Mater.Interfaces,2016,8(37):24525-24535.
[16]ZHU Y R,JI X B,WU Z B,et al.NiCo2S4 hollow microsphere decorated by acetylene black for high-performance asymmetric supercapacitor.Electrochimica Acta,2015,186:562-571.
[17]SHEN L F,WANG J,XU G Y,et al.NiCo2S4 nanosheets grown on nitrogen-doped carbon foams as an advanced electrode for supercapacitors.Advanced Energy Materials,2015,5(3):1400977-1-7.
[18]LI D L,GONG Y N,PAN C X.Facile synthesis of hybrid CNTs/NiCo2S4 composite for high performance supercapacitors.Sci.Rep.,2016,6:29788-29794.
[19]MA X J,KONG L B,ZHANG W B,et al.Design and synthesis of 3D Co3O4@MMoO4(M=Ni,Co)nanocomposites as highperformance supercapacitor electrodes.Electrochimica Acta,2014,130:660-669.
[20]WAN H Z,JIANG J J,YU J W,et al.NiCo2S4 porous nanotubes synthesis via sacrificial templates:high-performance electrode materials of supercapacitors.CrystEngComm,2013,15(38):7649-7651.
[21]HE X Y,LI R M,LIU J Y,et al.Hierarchical FeCo2O4@NiCo layered double hydroxide core/shell nanowires for high performance flexible all-solid-state asymmetric supercapacitors.Chemical Engineering Journal,2018,334:1573-1583.
[22]ZHANG G X,CHEN Y M,HE Z N,et al.Surfactant dependence of nanostructured NiCo2S4 films on Ni foam for superior electrochemical performance.Journal of Inorganic Materials,2018,33(3):289-294.
[23]TANG Z,TANG C H,GONG H.A high energy density asymmetric supercapacitor from nano-architectured Ni(OH)2/carbon nanotube electrodes.Advanced Functional Materials,2012,22(6):1272-1278.
[24]CHEN R N,LIU L,ZHOU J S,et al.High-performance nickelcobalt-boron material for an asymmetric supercapacitor with an ultrahigh energy density.Journal of Power Sources,2017,341:75-82.
[25]ZHANG Y F,PARK M,KIM H Y,et al.Moderated surface defects of Ni particles encapsulated with NiO nanofibers as supercapacitor with high capacitance and energy density.J.Colloid Interface Sci.,2017,500:155-163.
[26]HOU L R,HUA H,BAO R Q,et al.Anion-exchange formation of hollow NiCo2S4 nanoboxes from mesocrystalline nickel cobalt carbonate nanocubes towards enhanced pseudocapacitive properties.ChemPlusChem,2016,81(6):557-563.
[27]FENG Y,ZHENG C,YUAN X H,et al.Core-shell structure ultrathin NiCo2S4@graphene as high performance positive electrode for hybrid supercapacitors.Journal of Materials Chemistry A,2018,6(14):5856-5861.
[28]WANG F P,LI G F,ZHOU Q Q,et al.One-step hydrothermal synthesis of sandwich-type NiCo2S4@reduced graphene oxide composite as active electrode material for supercapacitors.Applied Surface Science,2017,425:180-187.