DC Field | Value | Language |
---|---|---|
dc.contributor.advisor | Kwak, Ju-Hyoun | - |
dc.contributor.advisor | 곽주현 | - |
dc.contributor.author | Yang, Hae-Sik | - |
dc.contributor.author | 양해식 | - |
dc.date.accessioned | 2011-12-13T04:59:52Z | - |
dc.date.available | 2011-12-13T04:59:52Z | - |
dc.date.issued | 1994 | - |
dc.identifier.uri | http://library.kaist.ac.kr/search/detail/view.do?bibCtrlNo=69179&flag=dissertation | - |
dc.identifier.uri | http://hdl.handle.net/10203/32666 | - |
dc.description | 학위논문(석사) - 한국과학기술원 : 화학과, 1994.2, [ viii, 68 p. ] | - |
dc.description.abstract | The technique of the Alternating Current Scanning Electrochemical Microscopy (AC-SECM) is described. This method is based on the variation of the ac impedance according to the tip-substrate distance in a Scanning Electrochemical Microscopy (SECM) arrangement. The ac response can be used to obtain the informations of mass transport, kinetic parameters, the solution resistance, and the double-layer capacitance in close proximity of a substrate. Prior to the theoretical study, experimental trends are investigated in an AC-SECM configuration using a microdisk electrode and compared with the planar electrode case. As a disk electrode approaches a conductive substrate in the supported system, the finite-length-diffusion character of the Warburg impedance increases. Conversely, in case of an insulating substrate it decreases. When a supporting electrolyte is not in excess, the changes of the Warburg impedance due to migration and slow charge transfer kinetics were observed. The variation of the ac impedance is complicated with mass transfer and charge transfer, as a disk electrode approaches a conducting substrate in a low-ionic strength solution. | eng |
dc.language | eng | - |
dc.publisher | 한국과학기술원 | - |
dc.title | Study on the variation of impedance using one-dimensional alternating current scanning electrochemical microscopy | - |
dc.title.alternative | 1차원 AC-SECM을 이용한 임피던스의 변화에 관한 연구 | - |
dc.type | Thesis(Master) | - |
dc.identifier.CNRN | 69179/325007 | - |
dc.description.department | 한국과학기술원 : 화학과, | - |
dc.identifier.uid | 000923281 | - |
dc.contributor.localauthor | Kwak, Ju-Hyoun | - |
dc.contributor.localauthor | 곽주현 | - |
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