MXene/聚吡咯复合材料的制备及其超电性能研究
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摘要
新型材料MXene(过渡金属二维碳化物,氮化物和碳氮化物)由于其良好的电化学活性而被广泛应用于储能材料。聚吡咯因其具有稳定的导电性而常用作超级电容器材料。通过原位聚合法成功制备MXene(Ti_3C_2T_x)和聚吡咯(PPy)复合材料。利用扫描电镜(SEM)和X射线衍射仪(XRD)对Ti_3C_2T_x/PPy复合电极材料进行表征,结果表明PPy均匀地包覆在Ti_3C_2T_x表面。这种独特的复合材料展现良好的协同作用,有效提高了电子和离子的传输速率。电化学测试表明:Ti_3C_2T_x和聚吡咯质量比为2∶1时复合材料表现出最好的电化学性能,当电流密度为1 A·g~(-1)时,Ti_3C_2T_x/PPy-2的比电容达到139 F·g~(-1),并且拥有较好的倍率性能。结果表明Ti_3C_2T_x/PPy复合材料可用于制备超级电容器电极材料。
The new material MXenes(transition metal two-dimensional carbides,nitrides and carbonitrides) were widely used in energy storage materials due to its good electrochemical activity.Polypyrrole(PPy) was often used as supercapacitor material because of its stable electrical conductivity.PPy was fabricated in the MXene matrix via in-situ synthesis.The Ti_3C_2T_x/PPy composite electrode materials were characterized by scanning electron microscopy(SEM) and X-ray diffraction(XRD).The results show that PPy is uniformly coated on the surface of Ti_3C_2T_x.The unique composites exhibite good synergistic effect and effectively improve the transmission rate of electron and ion.Moreover,the electrochemical tests indicate that the electrochemical performance of composite is the best when the mass ratio of Ti_3C_2T_x to PPy is 2∶1.When the current density is 1 A·g~(-1),the specific capacitance of Ti_3C_2T_x/PPy-2 reaches 139 F·g~(-1),and it also shows excellent rate performance.As a result,Ti_3C_2T_x/PPy composite material has a potential application in the field of supercapacitor electrode material.
The new material MXenes(transition metal two-dimensional carbides,nitrides and carbonitrides) were widely used in energy storage materials due to its good electrochemical activity.Polypyrrole(PPy) was often used as supercapacitor material because of its stable electrical conductivity.PPy was fabricated in the MXene matrix via in-situ synthesis.The Ti_3C_2T_x/PPy composite electrode materials were characterized by scanning electron microscopy(SEM) and X-ray diffraction(XRD).The results show that PPy is uniformly coated on the surface of Ti_3C_2T_x.The unique composites exhibite good synergistic effect and effectively improve the transmission rate of electron and ion.Moreover,the electrochemical tests indicate that the electrochemical performance of composite is the best when the mass ratio of Ti_3C_2T_x to PPy is 2∶1.When the current density is 1 A·g~(-1),the specific capacitance of Ti_3C_2T_x/PPy-2 reaches 139 F·g~(-1),and it also shows excellent rate performance.As a result,Ti_3C_2T_x/PPy composite material has a potential application in the field of supercapacitor electrode material.
引文
[1]阮殿波.动力型超级电容器的研制与应用[C]//第三届全国储能科学与技术大会摘要集.北京:中国化工学会储能工程专业委员会,2016.
[2]Song Z,Zhou H.Towards sustainable and versatile energy storage devices:an overview of organic electrode materials[J].Energy & Environmental Science,2013,6(8):2280-2301.
[3]Nicolosi V,Chhowalla M,Kanatzidis M G,et al.Liquid exfoliation of layered materials[J].Science,2013,340(6139):1226419.
[4]Cepellotti A,Fugallo G,Paulatto L,et al.Phonon hydrodynamics in two-dimensional materials[J].Nature Communications,2015,6:6400.
[5]Naguib M,Mochalin V N,Barsoum M W,et al.25th anniversary article:MXenes:a new family of two-dimensional materials[J].Advanced Materials,2014,26(7):992-1005.
[6]Yu L,Hu L,Anasori B,et al.MXene-bonded activated carbon as a flexible electrode for high-performance supercapacitors[J].ACS Energy Letters,2018,3(7):1597-1603.
[7]Yoon Y,Lee M,Kim S K,et al.Astrategy for synthesis of carbon nitride induced chemically doped 2D MXene for high‐performance supercapacitor electrodes[J].Advanced Energy Materials,2018,8(15):1703173.
[8]Zhang X,Wang J,Liu J,et al.Design and preparation of a ternary composite of graphene oxide/carbon dots/polypyrrole for supercapacitor application:importance and unique role of carbon dots[J].Carbon,2017,115:134-146.
[9]Yang C,Zhang L,Hu N,et al.Reduced graphene oxide/polypyrrole nanotube papers for flexible all-solid-state supercapacitors with excellent rate capability and high energy density[J].Journal of Power Sources,2016,302:39-45.
[10]Zhao M Q,Ren C E,Ling Z,et al.Flexible MXene/carbon nanotube composite paper with high volumetric capacitance[J].Advanced Materials,2015,27(2):339-345.
[11]Ling Z,Ren C E,Zhao M Q,et al.Flexible and conductive MXene films and nanocomposites with high capacitance[J].Proceedings of the National Academy of Sciences,2014,111(47):16676-16681.
[12]Boota M,Anasori B,Voigt C,et al.Pseudocapacitive electrodes produced by oxidant‐free polymerization of pyrrole between the layers of 2D titanium carbide (MXene)[J].Advanced Materials,2016,28(7):1517-1522.
[13]张翔,刘健,毕红.氮掺杂多孔碳的制备及其电容性能[J].安徽化工,2016,42(6):24-28.
[14]Feng H,Wang B,Tan L,et al.Polypyrrole/hexadecylpyridinium chloride-modified graphite oxide composites:fabrication,characterization,and application in supercapacitors[J].Journal of Power Sources,2014,246:621-628.
[2]Song Z,Zhou H.Towards sustainable and versatile energy storage devices:an overview of organic electrode materials[J].Energy & Environmental Science,2013,6(8):2280-2301.
[3]Nicolosi V,Chhowalla M,Kanatzidis M G,et al.Liquid exfoliation of layered materials[J].Science,2013,340(6139):1226419.
[4]Cepellotti A,Fugallo G,Paulatto L,et al.Phonon hydrodynamics in two-dimensional materials[J].Nature Communications,2015,6:6400.
[5]Naguib M,Mochalin V N,Barsoum M W,et al.25th anniversary article:MXenes:a new family of two-dimensional materials[J].Advanced Materials,2014,26(7):992-1005.
[6]Yu L,Hu L,Anasori B,et al.MXene-bonded activated carbon as a flexible electrode for high-performance supercapacitors[J].ACS Energy Letters,2018,3(7):1597-1603.
[7]Yoon Y,Lee M,Kim S K,et al.Astrategy for synthesis of carbon nitride induced chemically doped 2D MXene for high‐performance supercapacitor electrodes[J].Advanced Energy Materials,2018,8(15):1703173.
[8]Zhang X,Wang J,Liu J,et al.Design and preparation of a ternary composite of graphene oxide/carbon dots/polypyrrole for supercapacitor application:importance and unique role of carbon dots[J].Carbon,2017,115:134-146.
[9]Yang C,Zhang L,Hu N,et al.Reduced graphene oxide/polypyrrole nanotube papers for flexible all-solid-state supercapacitors with excellent rate capability and high energy density[J].Journal of Power Sources,2016,302:39-45.
[10]Zhao M Q,Ren C E,Ling Z,et al.Flexible MXene/carbon nanotube composite paper with high volumetric capacitance[J].Advanced Materials,2015,27(2):339-345.
[11]Ling Z,Ren C E,Zhao M Q,et al.Flexible and conductive MXene films and nanocomposites with high capacitance[J].Proceedings of the National Academy of Sciences,2014,111(47):16676-16681.
[12]Boota M,Anasori B,Voigt C,et al.Pseudocapacitive electrodes produced by oxidant‐free polymerization of pyrrole between the layers of 2D titanium carbide (MXene)[J].Advanced Materials,2016,28(7):1517-1522.
[13]张翔,刘健,毕红.氮掺杂多孔碳的制备及其电容性能[J].安徽化工,2016,42(6):24-28.
[14]Feng H,Wang B,Tan L,et al.Polypyrrole/hexadecylpyridinium chloride-modified graphite oxide composites:fabrication,characterization,and application in supercapacitors[J].Journal of Power Sources,2014,246:621-628.