Synthesis of calcium carbide-based carbon materials and applications in super capacitor
MAO Bei-bei1, CHEN Zhi-ping1, YANG Xiao-feng1, ZHANG Yue-peng1, LI Chong-qing1, YANG Yin-shuai2
1. School of Science, North University of China, Taiyuan 030051, China; 2. School of Chemical Engineering, Dalian University of Technology, Dalian 116024, China
Abstract: Carbon material (CM) is synthesized by oxidation method with calcium carbide as raw material,and further activated by a chemical method using potassium hydroxide (KOH) as activator to obtain activated carbon material (ACM) with microscopic pore structure.The structure of CM is analyzed by XRD,Raman,and FT-IR.The effects of activation on the structure,morphology and capacitance properties of carbon material are investigated by means of FESEM,BET,cyclic voltammetry (CV) and galvanostatic charge and discharge (GCD).The results show that the CM synthesized by the oxidation method has a certain degree of graphitization and its surface is partly oxidized.ACM's surface shows a loose shape,with larger specific surface area and total pore volume than CM.The specific surface area and total pore volume of ACM0.5 reaches 1,114.3 m2·g-1 and 0.35 cm3·g-1,respectively when the carbon material/KOH ratio (RCM/KOH) is 0.5.In a 0.64 mol·L-1 K2SO4 electrolyte solution,the specific capacitance of ACM0.5 reaches 165.47 F·g-1 at a current density of 0.5 A·g-1,which is higher than that of CM electrode prepared by oxidation method,and can be used as an electrode material for super capacitor.
毛贝贝, 陈志萍, 杨晓峰, 张越鹏, 李重庆, 杨寅帅. 碳化钙基炭材料的制备及其在超级电容器中的应用[J]. 现代化工, 2019, 39(12): 125-129,134.
MAO Bei-bei, CHEN Zhi-ping, YANG Xiao-feng, ZHANG Yue-peng, LI Chong-qing, YANG Yin-shuai. Synthesis of calcium carbide-based carbon materials and applications in super capacitor. Modern Chemical Industry, 2019, 39(12): 125-129,134.
[1] Zhang L L,Zhao X S.Carbon-based materials as supercapacitor electrodes[J].Chemical Society Reviews,2009,38(9):2520-2531. [2] Frackowiak E,Francois Béguin.Carbon materials for the electrochemical storage of energy in capacitors[J].Carbon,2001,39(6):937-950. [3] Pandolfo A G,Hollenkamp A F.Carbon properties and their role in supercapacitors[J].Journal of Power Sources,2006,157(1):11-27. [4] 李晶,黄可龙,刘业翔.超级电容器用活性炭的制备与电化学表征[J].材料科学与工艺,2009,17(1):1-4. [5] Ugarte,Daniel.Curling and closure of graphitic networks under electron-beam irradiation[J].Nature,1992,359(6397):707-709. [6] Han F D,Yao,B,Bai Y J.Preparation of carbon nano-onions and their application as anode materials for rechargeable lithium-ion batteries[J].Journal of Physical Chemistry C,2011,115(18):8923-8927. [7] Novoselov K S,Geim A K,Morozov Sv,et al.Electric field effect in atomically thin carbon films[J].Science,2004,306(5696):666-669. [8] 李俊,王先友,黄庆华.炭气凝胶的制备及其在超级电容器中的应用[J].电源技术,2006,30(7):555-559. [9] Futaba D N,Hata Kenji,Yamada Takeo,et al.Shape-engineerable and highly densely packed single-walled carbon nanotubes and their application as super-capacitor electrodes[J].Nature Materials,2006,5(12):987-994. [10] 于艳艳,关云锋,丛野,等.碳化硅衍生碳的制备及其超级电容性能[J].无机化学学报,2017,33(5):853-859. [11] Yan J,Wei T,Qiao W,et al.A high-performance carbon derived from polyaniline for supercapacitors[J].Electrochemistry Communications,2010,12(10):1279-1282. [12] Hu M,Reboul J,Furukawa S,et al.Direct carbonization of Al-based porous coordination polymer for synthesis of nanoporous carbon[J].Journal of the American Chemical Society,2012,134(6):2864-2867. [13] Wang Jiacheng,Stefan Kaskel.KOH activation of carbon-based materials for energy storage[J].Journal of Materials Chemistry:An Interdisciplinary Journal dealing with Synthesis,Structures,Properties and Applications of Materials,Particulary Those Associated with Advanced Technology,2012,22(45):23710-23725. [14] Tang L,Wang Y,Li Y,et al.Preparation,structure,and electrochemical properties of reduced graphene sheet films[J].Advanced Functional Materials,2009,19(17):2782-2789. [15] 许聚良,鄢文,吴大军.XRD分峰拟合法测定炭材料的石墨化度和结晶度[J].武汉科技大学学报,2009,32(5):522-525. [16] He X J,Ling P H,Qiu J S,et al.Efficient preparation of biomass-based mesoporous carbons for supercapacitors with both high energy density and high power density[J].Journal of Power Sources,2013,240:109-113. [17] 秦川丽,董楠,谭强,等.KOH活化对超级电容器用活性炭的影响[J].黑龙江大学自然科学学报,2009,26(1):35-38,42. [18] Zhang J,Gong L,Jiang J,et al.Preparation of activated carbon from waste camellia oleifera shell for supercapacitor application[J].Journal of Solid State Electrochemistry,2012,16(6):2179-2186. [19] Otowa T,Tanibata R,Itoh M.Production and adsorption characteristics of MAXSORB:High-surface-area active carbon[J].Gas Separation & Purification,1993,7(4):241-245. [20] Lozano-Castelló D,Calo J M,Cazorla-Amorós D,et al.Carbon activation with KOH as explored by temperature programmed techniques,and the effects of hydrogen[J].Carbon,2007,45(13):2529-2536. [21] Raymundo-Pinero E,Azais P,Cacciaguerra T,et al.KOH and NaOH activation mechanisms of multiwalled carbon nanotubes with different structural organisation[J].Carbon,2005,43(4):786-795.