Feng, Yao (2021)
Single-source-precursor synthesized SiC-based nanocomposites with an in-situ formed Nowotny phase as multifunctional materials for electrocatalytic and electromagnetic wave absorbing applications.
Technische Universität Darmstadt
doi: 10.26083/tuprints-00014551
Dissertation, Erstveröffentlichung, Verlagsversion
Kurzbeschreibung (Abstract)
This Ph.D. thesis is composed of three parts each summarizing an accepted publication. The first part is presented the Nowotny Phase (NP) embedded in a porous SiC/C nanocomposite matrix synthesized via a single-source-precursor approach involving the reaction of allylhydridopolycarbosilane with MoO2(acac)2. It is discovered for the first time that NP/C/SiC ceramic nanocomposites exhibit outstanding electrocatalytic properties suitable for the electrochemical hydrogen evolution. The second part reports how divinylbenzene (DVB) is used as a carbon-rich source to synthesize mesoporous NP/C/SiC ceramic nanocomposites with higher carbon content. The HER activity of the carbon-rich NP/C/SiC ceramic nanocomposites is further improved, due to their enhanced conductivity and high surface area. Finally, the third part of the thesis describes the discovery of interesting dielectric properties and outstanding EMA performance of the as-synthesized NP/C/SiC ceramic nanocomposites. This part is discussed also the high-temperature phase evolution of the respective nanocomposites.
Typ des Eintrags: | Dissertation | ||||
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Erschienen: | 2021 | ||||
Autor(en): | Feng, Yao | ||||
Art des Eintrags: | Erstveröffentlichung | ||||
Titel: | Single-source-precursor synthesized SiC-based nanocomposites with an in-situ formed Nowotny phase as multifunctional materials for electrocatalytic and electromagnetic wave absorbing applications | ||||
Sprache: | Englisch | ||||
Referenten: | Riedel, Prof. Dr Ralf ; Yu, Prof. Dr. Zhaoju ; Weidenkaff, Prof. Dr. Anke | ||||
Publikationsjahr: | 2021 | ||||
Ort: | Darmstadt | ||||
Kollation: | XIII, 94, vii Seiten | ||||
Datum der mündlichen Prüfung: | 26 Oktober 2020 | ||||
DOI: | 10.26083/tuprints-00014551 | ||||
URL / URN: | https://tuprints.ulb.tu-darmstadt.de/14551 | ||||
Kurzbeschreibung (Abstract): | This Ph.D. thesis is composed of three parts each summarizing an accepted publication. The first part is presented the Nowotny Phase (NP) embedded in a porous SiC/C nanocomposite matrix synthesized via a single-source-precursor approach involving the reaction of allylhydridopolycarbosilane with MoO2(acac)2. It is discovered for the first time that NP/C/SiC ceramic nanocomposites exhibit outstanding electrocatalytic properties suitable for the electrochemical hydrogen evolution. The second part reports how divinylbenzene (DVB) is used as a carbon-rich source to synthesize mesoporous NP/C/SiC ceramic nanocomposites with higher carbon content. The HER activity of the carbon-rich NP/C/SiC ceramic nanocomposites is further improved, due to their enhanced conductivity and high surface area. Finally, the third part of the thesis describes the discovery of interesting dielectric properties and outstanding EMA performance of the as-synthesized NP/C/SiC ceramic nanocomposites. This part is discussed also the high-temperature phase evolution of the respective nanocomposites. |
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Alternatives oder übersetztes Abstract: |
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Status: | Verlagsversion | ||||
URN: | urn:nbn:de:tuda-tuprints-145511 | ||||
Sachgruppe der Dewey Dezimalklassifikatin (DDC): | 500 Naturwissenschaften und Mathematik > 540 Chemie | ||||
Fachbereich(e)/-gebiet(e): | 11 Fachbereich Material- und Geowissenschaften 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft 11 Fachbereich Material- und Geowissenschaften > Materialwissenschaft > Fachgebiet Disperse Feststoffe |
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Hinterlegungsdatum: | 17 Feb 2021 09:14 | ||||
Letzte Änderung: | 23 Feb 2021 06:16 | ||||
PPN: | |||||
Referenten: | Riedel, Prof. Dr Ralf ; Yu, Prof. Dr. Zhaoju ; Weidenkaff, Prof. Dr. Anke | ||||
Datum der mündlichen Prüfung / Verteidigung / mdl. Prüfung: | 26 Oktober 2020 | ||||
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