CAS OpenIR  > 中科院上海应用物理研究所2004-2010年
Electrochemically controlled formation and growth of hydrogen nanobubbles
Zhang, LJ(张丽娟); Zhang, Y(张益); Zhang, XH; Li, ZX; Shen, GX; Ye, M; Fan, CH(樊春海); Fang, HP(方海平); Hu, J(胡钧); Fang, HP (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
2006
Source PublicationLANGMUIR
ISSN0743-7463
Volume22Issue:19Pages:8109
AbstractElectrogenerated microscale bubbles that are confined at the electrode surface have already been extensively studied because of their significant influence on electrochemistry. In contrast, as far as we know, whether nanoscale bubbles exist on the electrode surface has not been experimentally confirmed yet. Here, we report the observation of electrochemically controlled formation and growth of hydrogen nanobubbles on bare highly oriented pyrolytic graphite (HOPG) surface via in- situ tapping mode atomic force microscopy (TMAFM). By using TMAFM imaging, we observed that electrochemically generated hydrogen gas led to the formation of nanobubbles at the HOPG surface. We then employed a combination of techniques, including phase imaging, ex- situ degassing, and tip perturbation, to confirm the gas origin of such observed nanobubbles. We further demonstrated that the formation and growth of nanobubbles could be well controlled by tuning either the applied voltage or the reaction time. Remarkably, we could also monitor the evolution process of nanobubbles, that is, formation, growth, coalescence, as well as the eventual release of merged microbubbles from the HOPG surface.
Subject AreaPhysics
Indexed Bysci
Language英语
Funding Project应物所项目组
WOS IDWOS:000240250600027
Citation statistics
Cited Times:160[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/8050
Collection中科院上海应用物理研究所2004-2010年
Corresponding AuthorFang, HP (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai 201800, Peoples R China
Recommended Citation
GB/T 7714
Zhang, LJ,Zhang, Y,Zhang, XH,et al. Electrochemically controlled formation and growth of hydrogen nanobubbles[J]. LANGMUIR,2006,22(19):8109.
APA Zhang, LJ.,Zhang, Y.,Zhang, XH.,Li, ZX.,Shen, GX.,...&Fang, HP .(2006).Electrochemically controlled formation and growth of hydrogen nanobubbles.LANGMUIR,22(19),8109.
MLA Zhang, LJ,et al."Electrochemically controlled formation and growth of hydrogen nanobubbles".LANGMUIR 22.19(2006):8109.
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