Facile synthesis of graphene-wrapped CNT-MnO2 nanocomposites for asymmetric electrochemical capacitors

En Mei Jin; Jong Gil Lim; Sang Mun Jeong

Journal of Industrial and Engineering Chemistry, Vol.54, 421-427, October, 2017

DOI10.1016/j.jiec.2017.06.022 Export Citation

Facile synthesis of graphene-wrapped CNT-MnO2 nanocomposites for asymmetric electrochemical capacitors

En Mei Jin, Jong Gil Lim, and Sang Mun Jeong^†

Department of Chemical Engineering, Chungbuk National University, 1 Chungdae-ro, Seowon-Gu, Cheongju, Chungbuk 28644, Korea

E-mail:

CNT-MnO2 composites prepared by chemical redox deposition with various deposition times (0.5-2.0 h) were wrapped in functionalized graphene nanosheets (fGNSs) to improve their electrochemical pseudocapacitor properties. This treatment effectively improved the electrical conductivity and limited MnO2 loss during the charge.discharge process. The resulting fGNS-CNT-MnO2 (1 h) electrode exhibited the best pseudocapacitance of 202 F g-1 and a cycling stability of 95%. In a two-electrode system with an activated carbon//fGNS-CNT-MnO2 asymmetric capacitor, the initial capacitance decreased by only 5% after 1000 cycles, and the corresponding power and energy densities were calculated to be 720 W kg-1 and 46 W h kg-1, respectively, at 8 mA cm-2.

Keywords:Asymmetric electrochemical capacitor;MnO2;Multi-walled carbon nanotubes;Graphene;Electrical conductivity

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[Referenced By]

[1] Zhang LL, Zhao X, Chem. Soc. Rev., 38, 2520 (2009)

[2] Liu YC, He DW, Duan JH, Wang YS, Li SL, Mater. Chem. Phys., 147(1-2), 141 (2014)

[3] Armand M, Johansson P, J. Power Sources, 178(2), 821 (2008)

[4] Huang HJ, Zhang WY, Fu YS, Wang X, Electrochim. Acta, 152, 480 (2015)

[5] He P, Liu L, Song W, Xiong G, Fisher TS, Chen T, RSC Adv., 5, 31837 (2015)

[6] Chen K, Yin S, Xue D, Nanoscale, 7, 1161 (2015)

[7] Yang LF, Shi Z, Yang WH, Electrochim. Acta, 153, 76 (2015)

[8] Fkuhara M, Sugawara K, Nanoscale Res. Lett., 9, 253 (2014)

[9] He Y, Chen W, Li X, Zhang Z, Fu J, Zhao C, Xie E, ACS Nano, 7, 174 (2013)

[10] Wang W, Guo S, Lee I, Ahmed K, Zhong J, Favors Z, Zaera F, Ozkan M, Ozkan CS, Sci. Rep., 4, 4452 (2014)

[11] Foo CY, Sumboja A, Tan DJH, Wang J, Lee PS, Adv. Eng. Mater., 4, 140023 (2014)

[12] Jin Y, Jia M, Colloids Surf. A: Physicochem. Eng. Asp., 464, 17 (2015)

[13] Wang R, Yan X, Lang J, Zheng Z, Zhang P, J. Mater. Chem., 2, 12724 (2014)

[14] Li HB, Yu MH, Wang FX, Liu P, Liang Y, Xiao J, Wang CX, Tong YX, Yang GW, Nat. Commun., 4, 1894 (2012)

[15] de Oliverira HP, Sydlik SA, Swager TM, J. Phys. Chem., 117(2013), 10270 (2013)

[16] Huang M, Li F, Dong F, Zhang YX, Zhang LL, J. Mater. Chem., 3, 21380 (2015)

[17] Yao W, Wang J, Li H, Lu Y, J. Power Sources, 247, 824 (2014)

[18] Tan CT, Wei X, Jiang YM, Wu XY, Han LN, Wang LX, Chen JS, J. Phys. Chem., 119, 8465 (2015)

[19] Reddy RN, Reddy RG, J. Power Sources, 132(1-2), 315 (2004)

[20] Toupin M, Brousse T, Belanger D, Chem. Mater., 16, 3184 (2004)

[21] Rusi, Majid SR, Sci. Rep., 5, 16195 (2015)

[22] Lee SW, Bak SM, Lee CW, Jaye C, Fischer DA, Kim BK, Yang XQ, Nam KW, Kim KB, J. Phys. Chem., 118, 2834 (2014)

[23] Fan XB, Peng WC, Li Y, Li XY, Wang SL, Zhang GL, Zhang FB, Adv. Mater., 20(23), 4490 (2008)

[24] Jeong KH, Jeong SM, Electrochim. Acta, 108, 801 (2013)

[25] Jin X, Zhou W, Zhang S, Chen GZ, Small, 3, 1513 (2007)

[26] Zhu G, He Z, Chen J, Zhao J, Feng X, Ma Y, Fan Q, Wang L, Huang W, Nanoscale, 6, 1079 (2014)

[27] Grote F, Kuhnel RS, Balducci A, Lei Y, Appl. Phys. Lett., 104, 053904 (2014)

[28] Zhu HT, Luo J, Yang HX, Liang JK, Rao GH, Li JB, Du ZM, J. Phys. Chem., 112, 17089 (2008)

[29] Toupin M, Brousse T, Belanger D, Chem. Mater., 16, 3184 (2004)

[30] Deng LJ, Zhu G, Wang JF, Kang LP, Liu ZH, Yang ZP, Wang ZL, J. Power Sources, 196(24), 10782 (2011)

[31] Cao L, Xu F, Liang YY, Li HL, Adv. Mater., 16(20), 1853 (2004)

[32] Liu YC, He DW, Duan JH, Wang YS, Li SL, Mater. Chem. Phys., 147(1-2), 141 (2014)

[33] Cheng Q, Tang J, Ma J, Zhang H, Shinya N, Qin LC, Carbon, 49, 2917 (2011)

[34] Fan RJ, Chen Y, Chen BZ, Wang JW, Asia-Pac. J. Chem. Eng., 8, 721 (2013)

[35] Wu ZS, Ren W, Wang DW, Li F, Liu B, Cheng HM, ACS Nano, 4, 5835 (2010)

[36] Li L, Hu ZA, An N, Yang YY, Li ZM, Wu HY, J. Phys. Chem., 118, 22865 (2014)

[37] Demarconnay L, Raymundo-Pinero E, Beguin F, Electrochem. Commun., 12, 1275 (2010)

[38] Chen Q, Meng YN, Hu CG, Zhao Y, Shao HB, Chen N, Qu LT, J. Power Sources, 247, 32 (2014)

[39] Deng SX, Sun D, Wu CH, Wang H, Liu JB, Sun YX, Yan H, Electrochim. Acta, 111, 707 (2013)

[40] Li L, Hu ZA, An N, Yang YY, Li ZM, Wu HY, J. Phys. Chem., 118, 22865 (2014)