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...

SnO2修饰石墨毡电极的制备及其性能表征

, PP. 383-387

Keywords: 石墨毡,电沉积,SnO2,催化,电极过程

Full-Text   Cite this paper   Add to My Lib

Abstract:

采用H2O2对石墨毡(GF)进行预处理,然后在其表面电沉积Sn,最后在120℃烘箱氧化24h制备出SnO2修饰的石墨毡电极。通过扫描电镜(SEM)对SnO2修饰前后的石墨毡表面形貌进行表征,采用循环伏安法研究了SnO2修饰后石墨毡电极的电化学性能。结果表明:SnO2能够均匀地包覆在石墨毡表面;SnO2修饰石墨毡后V4+/V5+电对的氧化峰的峰电流由0.0538A增加到0.0708A,与未处理石墨毡相比增加了31.5%,反应峰出峰持续时间提高,说明SnO2对V4+/V5+电对电极过程具有一定的催化作用。析氧电位由1.382V增加到了1.517V,使电极在VOSO4溶液中的电化学窗口变宽。

References

[1]  Raghu S C, Ulaganathan M, Lim T M, et al. Electrochemical behaviour of titanium/iridium (IV) oxide: tantalum pentoxide and graphite for application in vanadium redox flow battery[J]. Journal of Power Sources, 2013, 238: 103-108.
[2]  Sun B, Skyllas-Kazacos M. Chemical modification and electrochemical behaviour of graphite fiber in acidic vanadium solution[J]. Electrochimica Acta, 1991, 36(7): 513-517.
[3]  王文红, 薛方勤, 王新东, 等. Ir修饰碳毡对VO2+/VO2+电对电催化性能的影响[J]. 材料研究学报, 2007, 21(5): 542-546. Wang Wenhong, Xue Fangqin, Wang Xindong, et al. Electrocatalytic activity of Ir-modified carbon felt for VO2+/VO2+ redox reaction[J]. Chinese Journal of Materials Research, 2007, 21(5): 542-546.
[4]  Wang W H, Wang X D. Investigation of Ir-modified carbon felt as the positive electrode of an all-vanadium redox flow battery[J]. Electrochimica Acta, 2007, 24(52): 6755-6762.
[5]  Wei G J, Jia C K, Liu J G, et al. Carbon felt supported carbon nanotubes catalysts composite electrode for vanadium redox flow battery application[J]. Journal of Power Sources, 2012, 220: 185-192.
[6]  Li W Y, Liu J G, Yan C W. Multi-walled carbon nanotubes used as an electrode reaction catalyst for VO2+/VO2+ for a vanadium redox flow battery[J]. Carbon, 2011, 49(11): 3463-3470.
[7]  黄 峰, 詹 晖, 周运鸿, 等. 纳米SnO2负极的电化学性质[J]. 应用化学, 2007, 24(3): 268-272. Huang Feng, Zhan Hui, Zhou Yunhong, et al. Electrochemical study of nano-SnO2 anode[J]. Chinese Journal of Applied Chemistry, 2007, 24(3): 268-272.
[8]  Fockedey E, Lierde A V. Coupling of anodic and cathodic reactions for phenol electro-oxidation using three-dimensional electrodes[J]. Water Research, 2002, 36(16): 4169-4175.
[9]  Liu Y, Li Z Y, Li J H. IrO2/SnO2 electrodes: prepared by sol-gel process and their electrocatalytic for pyrocatechol[J]. Acta Material, 2004, 52(3): 721-727.
[10]  Polcaro A M, Palmas S, Renoldi F, et al. On the performance of Ti/SnO2 and Ti/PbO2 anodesin electrochemical degradation of 2-chlorophenol for wastewater treatment[J]. Journal of Applied Electrochemistry, 1999, 29(2): 147-151.
[11]  Floner D, Geneste F. Homogeneous coating of graphite felt by nickel electrodeposition to achieve light nickel felts with high surface area[J]. Electrochemistry Communications, 2007, 9(9): 2271-2275.
[12]  代文彪. 酸性硫酸盐光亮镀锡添加剂的应用[J].材料保护, 2007, 40(7): 70-71. Dai Wenbiao. Application of additives for bright tin electroplating from acidic sulfate bath[J]. Materials Protection, 2007, 40(7): 70-71.
[13]  袁 俊, 余晴春, 刘逸枫, 等. 全钒液流电池性能及其电极材料的研究[J]. 电化学, 2006, 12(3): 271-274. Yuan Jun, Yu Qingchun, Liu Yifeng, et al. Studies on performance and electrode materials for all vanadium flow battery[J]. Electrochemistry, 2006, 12(3): 271-274.
[14]  Kang Y Q, Cao M S, Yuan J, et al. Preparation and microwave absorption properties of basalt fiber/nickel core-shell heterostructures[J]. Journal of Alloys and Compounds, 2010, 495(1): 254-259.
[15]  Zou G Z, Cao M S, Zhang L, et al. A nanoscale core-shell of β-SiCP-Ni prepared by electroless plating at lower temperature[J]. Surface and Coatings Technology, 2006, 201(1): 108-112.

Full-Text

Contact Us

service@oalib.com

QQ:3279437679

WhatsApp +8615387084133