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231225s2020 xx |||||o 00| ||eng c |
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|a 10.1021/acs.langmuir.0c01431
|2 doi
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|a pubmed24n1050.xml
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|a (NLM)32955261
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|a DE-627
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|e rakwb
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|a eng
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| 100 |
1 |
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|a Septani, Cindy M
|e verfasserin
|4 aut
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| 245 |
1 |
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|a Hierarchically Porous Carbon Materials from Self-Assembled Block Copolymer/Dopamine Mixtures
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|c 2020
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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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|a Date Completed 27.10.2020
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|a Date Revised 27.10.2020
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a Hierarchically porous carbon materials with interconnected frameworks of macro- and mesopores are desirable for electrochemical applications in biosensors, electrocatalysis, and supercapacitors. In this study, we report a facile synthetic route to fabricate hierarchically porous carbon materials by controlled macro- and mesophase separation of a mixture of polystyrene-block-poly(ethylene) and dopamine. The morphology of mesopores is tailored by controlling the coassembly of PS-b-PEO and dopamine in the acidic tetrahydrofuran-water cosolvent. HCl addition plays a critical role via enhancing the charge-dipole interactions between PEO and dopamine and suppressing the clustering and chemical reactions of dopamine in solution. As a result, subsequent drying can produce interpenetrated PS-b-PEO/DA mixtures without forming dopamine microsized crystallites. Dopamine oxidative polymerization induced by solvent annealing in NH4OH vapor enables the formation of percolating macropores. Subsequent pyrolysis to selectively remove the PS-b-PEO template from the complex can produce hierarchically porous carbon materials with interconnected frameworks of macro- and mesopores when pyrolysis is implemented at a low temperature or when DA is a minor component
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|a Journal Article
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|a Research Support, Non-U.S. Gov't
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|a Wang, Chen-An
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Jeng, U-Ser
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Su, Yu-Chia
|e verfasserin
|4 aut
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| 700 |
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|a Ko, Bao-Tsan
|e verfasserin
|4 aut
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| 700 |
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|a Sun, Ya-Sen
|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 36(2020), 40 vom: 13. Okt., Seite 11754-11764
|w (DE-627)NLM098181009
|x 1520-5827
|7 nnns
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| 773 |
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|g volume:36
|g year:2020
|g number:40
|g day:13
|g month:10
|g pages:11754-11764
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|u http://dx.doi.org/10.1021/acs.langmuir.0c01431
|3 Volltext
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