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231224s2015 xx |||||o 00| ||eng c |
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7 |
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|a 10.1021/acs.langmuir.5b01825
|2 doi
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| 028 |
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|a pubmed24n0835.xml
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|a eng
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| 100 |
1 |
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|a Yang, Xuegeng
|e verfasserin
|4 aut
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| 245 |
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|a Dynamics of Single Hydrogen Bubbles at a Platinum Microelectrode
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|c 2015
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|2 rdacarrier
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| 500 |
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|a Date Completed 02.10.2015
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|a Date Revised 28.07.2015
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Bubble dynamics, including the formation, growth, and detachment, of single H2 bubbles was studied at a platinum microelectrode during the electrolysis of 1 M H2SO4 electrolyte. The bubbles were visualized through a microscope by a high-speed camera. Electrochemical measurements were conducted in parallel to measure the transient current. The periodic current oscillations, resulting from the periodic formation and detachment of single bubbles, allow the bubble lifetime and size to be predicted from the transient current. A comparison of the bubble volume calculated from the current and from the recorded bubble image shows a gas evolution efficiency increasing continuously with the growth of the bubble until it reaches 100%. Two different substrates, glass and epoxy, were used to embed the Pt wire. While nearly no difference was found with respect to the growth law for the bubble radius, the contact angle differs strongly for the two types of cell. Data provided for the contact point evolution further complete the image of single hydrogen bubble growth. Finally, the velocity field driven by the detached bubble was measured by means of PIV, and the effects of the convection on the subsequent bubble were evaluated
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|a Journal Article
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|a Karnbach, Franziska
|e verfasserin
|4 aut
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1 |
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|a Uhlemann, Margitta
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Odenbach, Stefan
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Eckert, Kerstin
|e verfasserin
|4 aut
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| 773 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1992
|g 31(2015), 29 vom: 28. Juli, Seite 8184-93
|w (DE-627)NLM098181009
|x 1520-5827
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| 773 |
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|g volume:31
|g year:2015
|g number:29
|g day:28
|g month:07
|g pages:8184-93
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|u http://dx.doi.org/10.1021/acs.langmuir.5b01825
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