全部 标题 作者
关键词 摘要

OALib Journal期刊
ISSN: 2333-9721
费用:99美元

查看量下载量

相关文章

更多...
电化学  2014 

氧化铅/石墨烯/活性炭的制备及电化学行为(英文)

DOI: 10.13208/j.electrochem.131227, PP. 486-492

Keywords: 活性炭,PbO,石墨烯,析氢,超级电容器

Full-Text   Cite this paper   Add to My Lib

Abstract:

将商业活性炭和石墨烯在饱和硝酸铅溶液中超声浸渍,并通过化学沉积结合高温煅烧制备了氧化铅/石墨烯/活性炭(PbO/GN/AC)复合材料.采用XRD、SEM、EDS等手段对复合物进行了物相及微观结构表征.测试结果发现,PbO(约200nm)颗粒均匀的分散在活性炭和石墨烯的表面.复合物表现出优异的电化学性能,具有较高的析氢过电位;比电容高达312.6F·g-1;等效串联内阻仅为1.56Ω.6000次循环之后,复合物电极的电容保持率仍达到92.6%.将5wt%的Pb(PbO)/活性炭材料加入到铅酸电池负极铅膏中制备相应铅炭超级电池,循环次数达到18051次,是普通铅酸蓄电池的3.5倍.

References

[1]  Cooper A, Furakawa J, Lam L, et al. The ultrabattery-A new battery design for a new beginning in hybrid electric vehicle energy storage [J]. Journal of Power Sources, 2009, 188(2): 642-649.
[2]  Furukawa J, Takada T, Monma D, et al. Further demonstration of the VRLA-type ultrabattery under medium-HEV duty and development of the flooded-type UltraBattery for micro- HEV applications [J]. Journal of Power Sources, 2010, 195(4): 1241-1245.
[3]  Aravinda L S, Udaya Bhat K. Badekai Ramachandra Bhat, Nano CeO2/activated carbon based composite electrodes for high performance supercapacitor [J]. Materials Letters, 2013, 112(1): 158-161.
[4]  Feng Z H, Xue R S, Shao X H. Highly mesoporous carbonaceous material of activated carbon beads for electric double layer capacitor [J]. Electrochimica Acta, 2010, 55( ): 7334-7340.
[5]  Geim A K. Graphene: Status and Prospects [J].Science, 2009, 324( ): 1530 -1534.
[6]  Katsnelson M I. Graphene: carbon in two dimensions [J]. Materials Today, 2007, 10(1/2): 20 -27.
[7]  Novoselov K S. Nobel Lecture: Graphene: Materials in the Flatland [J]. Reviews of Modern?Physics, 2011, 83( ): 837-849.
[8]  Hou Y, Cheng Y W, Hobson T. Design and synthesis of hierarchical MnO2 nanospheres/carbon nanotubes/conducting polymer ternary composite for high performance electrochemical electrodes [J]. Nano Letters, 2010, 10( ): 2727-2733
[9]  Qu D Y, Shi H. Studies of the activated carbons used in double-layer supercapacitors [J]. Power Sources, 2002, 109( ): 403-411
[10]  Czerwinski A, Obrebowski S, Kotowski J, et al. Hybrid lead-acid battery with reticulated vitreous carbon as a carrier- and current-collector of negative plate [J]. Journal of Power Sources, 2010, 195(2): 7530–7534.
[11]  Lam L T, and R Louey. Development of ultra-battery for hybrid-electric vehicle applications [J]. Journal of Power Sources, 2006, 158(2): 1140-1148.
[12]  Lam L T, Louey R, Haigh N P, et al. VRLA ultrabattery for high rate partial state of charge operation [J]. Journal of Power Sources, 2007, 174(1): 16-29.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133