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231226s2023 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.2c02933
|2 doi
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|a pubmed24n1179.xml
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|a (DE-627)NLM353991791
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|a (NLM)36893476
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|a DE-627
|b ger
|c DE-627
|e rakwb
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|a eng
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| 100 |
1 |
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|a Pham, Thi Kieu Ngan
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Deposition of Ultrathin MgB2 Films from a Suspension Using Cosolvent Marangoni Flow
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|c 2023
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
|b c
|2 rdamedia
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| 338 |
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|a ƒa Online-Ressource
|b cr
|2 rdacarrier
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|a Date Completed 21.03.2023
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|a Date Revised 21.03.2023
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Magnesium diboride (MgB2) has demonstrated, theoretically and experimentally, promise as a candidate material for hydrogen storage and has thus attracted much contemporary research interest. To study hydrogen gas adsorption on MgB2 thin films using a quartz crystal microbalance (QCM)─a workhorse apparatus for this specific experiment─MgB2 must be deposited uniformly on the active surface of the QCM without damaging the quartz's performance. In work presented here, a wet-chemistry colloid synthesis and deposition process of a MgB2 thin film on a gold (Au) surface was established to avoid the extreme conditions of conventional physical deposition methods. This process also counteracts the unwanted phenomena of drying droplets on a solid surface, particularly the coffee-ring effect. To verify the normal function of the QCM after MgB2 deposition and its ability to obtain meaningful data, simple gas adsorption tests were conducted on the QCM, and the MgB2 film on the QCM was characterized with X-ray photoelectron spectroscopy (XPS) and atomic force microscopy (AFM) for elemental analysis and surface roughness, respectively. To obtain information about the thickness and the involvement of the coffee-ring effect, the same synthesis route was applied on a similar gold substrate─an evaporated Au film on glass. XPS characterization of the film and its precursor suspension shows the potential existence of both MgB2 and its oxide forms. The film's thickness on evaporated Au was measured by scanning transmission electron microscopy (STEM) to be 3.9 nm. The resulting samples show mitigation of the coffee-ring effect through roughness measurements with AFM at two scan sizes of 50 × 50 and 1 × 1 μm2
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|a Journal Article
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1 |
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|a Bruffey, Edward
|c 3rd
|e verfasserin
|4 aut
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| 700 |
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|a Nguyen, Anh Tuan
|e verfasserin
|4 aut
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| 700 |
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|a Rivera-Maldonado, Ricardo A
|e verfasserin
|4 aut
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| 700 |
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|a Kuo, Ding-Yuan
|e verfasserin
|4 aut
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|a Cossairt, Brandi
|e verfasserin
|4 aut
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|a Lee, Woochul
|e verfasserin
|4 aut
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|a Severa, Godwin
|e verfasserin
|4 aut
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| 700 |
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|a Brown, Joseph J
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Langmuir : the ACS journal of surfaces and colloids
|d 1999
|g 39(2023), 11 vom: 21. März, Seite 3853-3861
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
1 |
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|g volume:39
|g year:2023
|g number:11
|g day:21
|g month:03
|g pages:3853-3861
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|u http://dx.doi.org/10.1021/acs.langmuir.2c02933
|3 Volltext
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