花球状BiOBr制备及其在超级电容器中应用
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摘要
本工作采用溶剂热法制备了花球状BiOBr材料,利用XRD、XPS、SEM、TEM及低温N_2吸/脱附技术研究了材料的结构与形貌。在三电极体系中系统研究了制备材料的电容性质,结果表明:在2mol·L~(-1) KOH水溶液电解质中,在-1.2～0.2 V vs.SCE电压范围内,当电流密度为1 A/g时,质量比容量高达290 C/g,是一种极具潜力的储能材料。
In this work,flower-like BiOBr was prepared using solvothermal method.Structure and morphology were characterized by XRD,XPS,SEM,TEM and nitrogen adsorption–desorption.The capacitive property of the flower-like BiOBr was tested in three-electrode system,and results show that a specific capacity of 290 C/g is obtained at a current density of 1 A/g in the potential window of -1.2～0.2 V vs.SCE,and therefore is suitable and promising electrode material offers great potential in energy storage device applications.
In this work,flower-like BiOBr was prepared using solvothermal method.Structure and morphology were characterized by XRD,XPS,SEM,TEM and nitrogen adsorption–desorption.The capacitive property of the flower-like BiOBr was tested in three-electrode system,and results show that a specific capacity of 290 C/g is obtained at a current density of 1 A/g in the potential window of -1.2～0.2 V vs.SCE,and therefore is suitable and promising electrode material offers great potential in energy storage device applications.
引文
[1]Niu Z,Zhou W,Chen X,et al.Highly compressible and all-solid-state supercapacitors based on nanostructured composite sponge[J].Adv Mater,2015,27:6002-6008.
[2]Wang G,Zhang L,Zhang J.A review of electrode materials for electrochemical supercapacitors[J].Chem Soc Rev,2012,41:797-828.
[3]Zhang L,Hui K N,Hui K S,et al.High-performance hybrid supercapacitor with 3D hierarchical porous flower-like layered double hydroxide grown on nickel foam as binder free electrode[J].J Power Sources,2016,318:76-85.
[4]Bagheri N,Aghaei A,Vlachopoulos Ni,et al.Physicochemical identity and charge storage properties of battery-type nickel oxide material and its composites with activated carbon[J].Electrochim Acta,2016,194:480-488.
[5]Qiu X,Zhang X,Fan L-Z.In situ synthesis of highly active Na2Ti3O7 nanosheet on activated carbon fiber as anode for high-energy density supercapacitors[J].J Mater Chem A,2018,6:16186-16195.
[6]Jiang S,Sun Y,Dai H,et al.A facile enhancement in battery-type of capacitive performance of spinel NiCo2O4 nanostructure via directly tuning thermal decomposition temperature[J],Electrochim Acta,2016,191:364-374.
[7]Shinde N,Xia Q,Yun J S,et al.A binder-free wet chemical synthesis approach to decorate nanoflowers of bismuth oxide on Ni-foam for fabricating laboratory scale potentialpencil-type asymmetric supercapacitor device[J].Dalton Trans,2017,46:6601-6611.
[8]Ye L,Zhou Y,Bao Z,et al.Sheet-membrane Mn-doping nickel hydroxide encapsulated via heterogeneous Ni3S2 nanoparticles for efficient alkaline batterysupercapacitor hybrid device[J].J Mater Chem A,2018,6:19020-19029.
[9]Zhang X,Wu A,Wang X,et al.Porous NiCoP nanosheet as efficient and stable positive electrode for advanced asymmetric supercapacitors[J].J Mater Chem A,2018,6:17905-17914.
[10]Zhang C,Hou M,Cai X,et al.One-step coaxial electrodeposition of Co0.85Se on CoNi2S4 nanotube arrays for flexible solid-state asymmetric supercapacitors[J].J Mater Chem A,2018,6:15630-15639.
[11]Elshahawy A,Li X,Zhang H,et al.Controllable MnCo2S4 nanostructures for high performance hybrid supercapacitors[J].J Mater Chem A,2017,5:7494-7506.
[12]Deng L,Liu J,Ma Z,et al.Free-standing graphene/bismuth vanadate monolith composite as a binder-free electrode for symmetrical supercapacitors[J].RSC Adv,2018,8:24796-24804.
[13]Tu X,Luo S,Chen G,et al.One-pot synthesis,characterization,and enhanced photocatalytic activity of a BiOBr–graphene composite[J].Chem Eur J,2012,18:14359-14366.
[14]Penn R,Banfield J.Imperfect oriented attachment:dislocation generation in defect-free nanocrystals[J].Science,1998,281:969-971
[15]Simon P,Gogotsi Y,Dunn B.Where do batteries end and supercapacitors begin?[J].Science,2014,343(6176):1210-1211.
[16]Simon P,Gogotsi Y.Materials for electrochemical capacitors[J].Nature Mater,2008,7(11):845-854.
[17]Vivier V,Cachet-Vivier C,Mezaille S,et al.Electrochemical study of Bi2O3 and Bi2O2CO3 by means of a cavity microelectrode I.Observed phenomena and direct Analysis of results[J].J Electrochem Soc,2000,147(11):4252-4262.
[2]Wang G,Zhang L,Zhang J.A review of electrode materials for electrochemical supercapacitors[J].Chem Soc Rev,2012,41:797-828.
[3]Zhang L,Hui K N,Hui K S,et al.High-performance hybrid supercapacitor with 3D hierarchical porous flower-like layered double hydroxide grown on nickel foam as binder free electrode[J].J Power Sources,2016,318:76-85.
[4]Bagheri N,Aghaei A,Vlachopoulos Ni,et al.Physicochemical identity and charge storage properties of battery-type nickel oxide material and its composites with activated carbon[J].Electrochim Acta,2016,194:480-488.
[5]Qiu X,Zhang X,Fan L-Z.In situ synthesis of highly active Na2Ti3O7 nanosheet on activated carbon fiber as anode for high-energy density supercapacitors[J].J Mater Chem A,2018,6:16186-16195.
[6]Jiang S,Sun Y,Dai H,et al.A facile enhancement in battery-type of capacitive performance of spinel NiCo2O4 nanostructure via directly tuning thermal decomposition temperature[J],Electrochim Acta,2016,191:364-374.
[7]Shinde N,Xia Q,Yun J S,et al.A binder-free wet chemical synthesis approach to decorate nanoflowers of bismuth oxide on Ni-foam for fabricating laboratory scale potentialpencil-type asymmetric supercapacitor device[J].Dalton Trans,2017,46:6601-6611.
[8]Ye L,Zhou Y,Bao Z,et al.Sheet-membrane Mn-doping nickel hydroxide encapsulated via heterogeneous Ni3S2 nanoparticles for efficient alkaline batterysupercapacitor hybrid device[J].J Mater Chem A,2018,6:19020-19029.
[9]Zhang X,Wu A,Wang X,et al.Porous NiCoP nanosheet as efficient and stable positive electrode for advanced asymmetric supercapacitors[J].J Mater Chem A,2018,6:17905-17914.
[10]Zhang C,Hou M,Cai X,et al.One-step coaxial electrodeposition of Co0.85Se on CoNi2S4 nanotube arrays for flexible solid-state asymmetric supercapacitors[J].J Mater Chem A,2018,6:15630-15639.
[11]Elshahawy A,Li X,Zhang H,et al.Controllable MnCo2S4 nanostructures for high performance hybrid supercapacitors[J].J Mater Chem A,2017,5:7494-7506.
[12]Deng L,Liu J,Ma Z,et al.Free-standing graphene/bismuth vanadate monolith composite as a binder-free electrode for symmetrical supercapacitors[J].RSC Adv,2018,8:24796-24804.
[13]Tu X,Luo S,Chen G,et al.One-pot synthesis,characterization,and enhanced photocatalytic activity of a BiOBr–graphene composite[J].Chem Eur J,2012,18:14359-14366.
[14]Penn R,Banfield J.Imperfect oriented attachment:dislocation generation in defect-free nanocrystals[J].Science,1998,281:969-971
[15]Simon P,Gogotsi Y,Dunn B.Where do batteries end and supercapacitors begin?[J].Science,2014,343(6176):1210-1211.
[16]Simon P,Gogotsi Y.Materials for electrochemical capacitors[J].Nature Mater,2008,7(11):845-854.
[17]Vivier V,Cachet-Vivier C,Mezaille S,et al.Electrochemical study of Bi2O3 and Bi2O2CO3 by means of a cavity microelectrode I.Observed phenomena and direct Analysis of results[J].J Electrochem Soc,2000,147(11):4252-4262.