高氯酸根阴离子在HOPG中嵌入行为的EC-STM研究

doi:10.13208/j.electrochem.150715

电化学（中英文） ›› 2015, Vol. 21 ›› Issue (6): 560-565. doi: 10.13208/j.electrochem.150715

高氯酸根阴离子在HOPG中嵌入行为的EC-STM研究

胡晓艳，ALIWOWE Alice，颜佳伟，毛秉伟*

厦门大学化学化工学院固体表面物理化学国家重点实验室，福建厦门 361005

收稿日期:2015-07-14 修回日期:2015-08-16 出版日期:2015-12-23 发布日期:2015-08-18
通讯作者: 毛秉伟 E-mail:bwmao@xmu.edu.cn
作者简介:毛秉伟
基金资助:
国家自然科学基金项目（2012CB932902，2015CB251102，21021002）资助

Intercalation of ClO₄^- into HOPG Investigated by EC-STM

HU Xiao-yan, ALIWOWE Alice, YAN Jia-wei, MAO Bing-wei*

State Key Laboratory of Physical Chemistry of Solid Surfaces, Department of Chemistry, College of Chemistry and Chemical Engineering, Xiamen University, Xiamen 361005, Fujian, China

Received:2015-07-14 Revised:2015-08-16 Published:2015-12-23 Online:2015-08-18
Contact: MAO Bing-wei E-mail:bwmao@xmu.edu.cn
About author:MAO Bing-wei

摘要/Abstract

摘要：

运用电化学扫描隧道显微镜（EC-STM）和循环伏安（CV）技术对高氯酸根阴离子ClO₄^-在高序热解石墨（HOPG）中的电化学嵌入行为进行了研究. 通过观察嵌入前后石墨台阶处高度的变化，比较了不同高度的台阶对嵌入的影响，讨论了ClO₄^-离子嵌入石墨的可行性、可逆性和嵌入速率. 研究表明，3层以上的台阶位才有可能观察到由四阶和三阶嵌入引起的台阶高度变化，4 ~ 8个原子层高度的石墨台阶可以实现ClO₄^-在台阶处较为可逆的四阶嵌入，但1 ~ 2层台阶处无法观察到嵌入引起的台阶高度变化，嵌入反应通常会伴随台阶的剥离和脱落现象. 四阶的嵌入反应较三阶可逆，二阶和一阶时，嵌入所需反应电势较高，此时氧化反应较为剧烈，嵌入反应被掩盖，很难观察到台阶高度的变化，更多的形貌变化是台面和台阶处不可逆的损坏如剥落、断层、黑坑等.

关键词: 石墨层间化合物, 高氯酸, 阴离子嵌入, 电化学扫描隧道显微镜

Abstract:

The electrochemical intercalation and surface morphology of highly oriented pyrolytic graphite (HOPG) electrode in 2 mol•L^-1 HClO₄ were studied by in situ scanning tunneling microscopy (STM) and cyclic voltammetry (CV). Based on the step-height changes observed before and after the intercalation, the effects of different step sites on intercalation are compared. The feasibility, reversibility and speed of intercalation are discussed. The intercalation of ClO₄^- into HOPG can be divided into three types depending on the number of graphite layers at the step site: When the layers of graphite are more than three, the intercalation becomes feasible; when the layers of graphite are four to eight, the intercalation can take place reversibly; However, when the graphite layers are one or two only, the intercalation cannot be observed because of the required high potential at which drastic oxidation reaction occurs concurrently. Exfoliation and etching of HOPG are the main morphological changes in this situation.

Key words: graphite intercalation compound, HClO4, anion intercalation, electrochemical scanning tunnelling microscopy

中图分类号:

O646

胡晓艳，ALIWOWE Alice,颜佳伟，毛秉伟. 高氯酸根阴离子在HOPG中嵌入行为的EC-STM研究[J]. 电化学（中英文）, 2015, 21(6): 560-565.

HU Xiao-yan, ALIWOWE Alice, YAN Jia-wei, MAO Bing-wei. Intercalation of ClO₄^- into HOPG Investigated by EC-STM[J]. Journal of Electrochemistry, 2015, 21(6): 560-565.

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链接本文: https://electrochem.xmu.edu.cn/CN/10.13208/j.electrochem.150715

https://electrochem.xmu.edu.cn/CN/Y2015/V21/I6/560

参考文献

[1] Noel M, Santhanam R. Electrochemistry of graphite intercalation compounds[J]. Journal of Power Sources, 1998, 72(1): 53-65.

[2] Wisendanger R, Guentherodt H J. Scanning tunneling microscopy I-II[M]. Berlin: Springer, 1992-1993.

[3] Kinoshita K. Carbon: Electrochemical and physicochemical properties[M]. New York: Wiley, 1988.

[4] Beck F, Junge H, Krohn H. Graphite intercalation compounds as positive electrodes in galvanic cells[J]. Electrochimica Acta, 1981, 26(7): 799-809.

[5] Alsmeyer D C, McCreery R L. In situ Raman monitoring of electrochemical graphite intercalation and lattice damage in mild aqueous acids[J]. Analytical Chemistry, 1992, 64(14): 1528-1533.

[6] Goss C A, Brumfield J C, Irene E A, et al. Imaging the incipient electrochemical oxidation of highly oriented pyrolytic-graphite[J]. Analytical Chemistry, 1993, 65(10): 1378-1389.

[7] Hathcock K W, Brumfield J C, Goss C A, et al. Incipient Electrochemical oxidation of highly oriented pyrolytic graphite-correlation between surface blistering and electrolyte anion intercalation[J]. Analytical Chemistry, 1995, 67(13): 2201-2206.

[8] Zhang B L, Wang E K, et al. Effects of anodic oxidation on the surface structure of highly oriented pyrolytic graphite revealed by in situ electrochemical scanning tunnelling microscopy in H₂SO₄ solution[J]. Electrochimica Acta, 1995, 40(16): 2627-2733.

[9] Alliata D, Kötz R, Hass O, et al. In situ AFM study of interlayer spacing during anion intercalation into HOPG in aqueous electrolyte[J]. Langmuir, 1999, 15(24): 8483-8489.

[10] Alliata D, Häring P, Hass O, et al. Anion intercalation into highly oriented pyrolytic graphite studied by electrochemical atomic force microscopy[J]. Electrochemistry Communications, 1999, 1(1): 5-9.

[11] Singh P R, Zeng X Q. Size-dependent intercalation of ions into highly oriented pyrolytic graphite in ionic liquids: An electrochemical atomic force microscopy study[J]. The Journal of Physical Chemistry C, 2011, 115(35): 17429-17439.

[12] Pierson H.O. Handbook of carbon, graphite, diamond and fullerenes[M]. Park Ridge: Noyes Publications, 1993.

[13] Aronson S, Lemont S, Weiner J. Determination of the H₂SO- 4-HSO- 4 and HC1O- 4-C1O- 4 ratios in graphite lamellar compounds[J]. Inorganic Chemistry, 1971, 10(6): 1296-1298.

高氯酸根阴离子在HOPG中嵌入行为的EC-STM研究

Intercalation of ClO₄^- into HOPG Investigated by EC-STM

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高氯酸根阴离子在HOPG中嵌入行为的EC-STM研究

Intercalation of ClO4- into HOPG Investigated by EC-STM

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Intercalation of ClO₄^- into HOPG Investigated by EC-STM