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Polymers
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Polymer-Derived Ceramic Materials: Design, Synthesis, and Applications
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Polymer-Derived Ceramic Materials: Design, Synthesis, and Applications

A special issue of Polymers (ISSN 2073-4360). This special issue belongs to the section "Polymer Applications".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 4057

Special Issue Editors

Dr. Gaofeng Shao

E-Mail Website
Guest Editor
Institute of Advanced Materials and Flexible Electronics (IAMFE), School of Chemistry and Materials Science, Nanjing University of Information Science & Technology, Nanjing 210044, China
Interests: polymer-derived ceramics; aerogels; freeze casting; thermal insulation; microwave absorption; electrochemistry
Dr. Maged F. Bekheet

E-Mail Website
Guest Editor
Fachgebiet Keramische Werkstoffe/Chair of Advanced Ceramic Materials, Institut für Werkstoffwissenschaften und -technologien, Technische Universität Berlin, Hardenbergstraße 40,
10623 Berlin, Germany
Interests: catalysis; photocatalysis; nanomaterials; wastewater treatment; water splitting
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Polymer-derived ceramics (PDCs) offer a new type of advanced structure–function integrated material with a unique structure and adjustable physicochemical properties, inspiring the development of various applications in thermal protection, environmental remediation, energy storage and conversion, microwave absorption/shielding, etc. Advanced fabrication strategies, such as electrospinning, freeze casting, and additive manufacturing, have facilitated the design of complex structures across multiple length scales. PDC hybrid materials containing second phases have further been endowed with novel properties, broadening their applicability. This Special Issue is to present the latest findings in PDC materials to highlight promising trends in their design, synthesis, manufacturing, characterization, and applications; our ultimate aim is to realize the coexistence of basic theories and engineering applications, the integration of chemical composition and multiscale structures, and the collaboration of interdisciplinary fields, including chemistry, materials science, mechanics, and mechanical engineering. The scope of this Special Issue covers advances in molecular chemistry, advanced processing and shaping methods, polymer-to-ceramic conversion, characterization technology, and cutting-edge PDC applications . Both comprehensive reviews and original research articles are welcome.

 

Dr. Gaofeng Shao
Dr. Maged F. Bekheet
Guest Editors

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Polymers is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2700 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • preceramic polymers
  • single-source precursors
  • polymer-to-ceramic conversion
  • freeze casting
  • additive manufacturing
  • aerogels
  • energy storage and conversion
  • microwave absorption

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Published Papers (3 papers)

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Research

13 pages, 3235 KiB  
Article
Revealing Nanodomain Structures of Bottom-Up-Fabricated Graphene-Embedded Silicon Oxycarbide Ceramics
by Dongxiao Hu, Gaofeng Shao, Jun Wang, Aleksander Gurlo and Maged F. Bekheet
Polymers 2022, 14(17), 3675; https://doi.org/10.3390/polym14173675 - 4 Sep 2022
Cited by 8 | Viewed by 1946
Abstract
Dispersing graphene nanosheets in polymer-derived ceramics (PDCs) has become a promising route to produce exceptional mechanical and functional properties. To reveal the complex nanodomain structures of graphene–PDC composites, a novel reduced graphene oxide aerogel embedded silicon oxycarbide (RGOA-SiOC) nanocomposite was fabricated bottom-up using [...] Read more.
Dispersing graphene nanosheets in polymer-derived ceramics (PDCs) has become a promising route to produce exceptional mechanical and functional properties. To reveal the complex nanodomain structures of graphene–PDC composites, a novel reduced graphene oxide aerogel embedded silicon oxycarbide (RGOA-SiOC) nanocomposite was fabricated bottom-up using a 3D reduced graphene oxide aerogel as a skeleton followed by infiltration of a ceramic precursor and high-temperature pyrolysis. The reduced graphene oxide played a critical role in not only the form of the free carbon phase but also the distribution of SiOxC4−x structural units in SiOC. Long-ordered and continuous graphene layers were then embedded into the amorphous SiOC phase. The oxygen-rich SiOxC4−x units were more prone to forming than carbon-rich SiOxC4−x units in SiOC after the introduction of reduced graphene oxide, which we attributed to the bonding of Si atoms in SiOC with O atoms in reduced graphene oxide during the pyrolysis process. Full article
(This article belongs to the Special Issue Polymer-Derived Ceramic Materials: Design, Synthesis, and Applications)
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15 pages, 57315 KiB  
Article
Porous Silicon Oxycarbonitride Ceramics with Palladium and Pd2Si Nanoparticles for Dry Reforming of Methane
by Jun Wang, Matthias Grünbacher, Simon Penner, Maged F. Bekheet and Aleksander Gurlo
Polymers 2022, 14(17), 3470; https://doi.org/10.3390/polym14173470 - 25 Aug 2022
Cited by 4 | Viewed by 1851
Abstract
Pd-containing precursor has been synthesized from palladium acetate and poly(vinly)silazane (Durazane 1800) in an ice bath under an argon atmosphere. The results of ATR-FTIR and NMR characterizations reveal the chemical reaction between palladium acetate and vinyl groups in poly(vinyl)silazane and the hydrolyzation reaction [...] Read more.
Pd-containing precursor has been synthesized from palladium acetate and poly(vinly)silazane (Durazane 1800) in an ice bath under an argon atmosphere. The results of ATR-FTIR and NMR characterizations reveal the chemical reaction between palladium acetate and vinyl groups in poly(vinyl)silazane and the hydrolyzation reaction between –Si–H and –Si–CH=CH2 groups in poly(vinyl)silazane. The palladium nanoparticles are in situ formed in the synthesized precursors as confirmed by XRD, XPS, and TEM. Pd- and Pd2Si-containing SiOCN ceramic nanocomposites are obtained by pyrolysis of the synthesized precursors at 700 °C, 900 °C–1100 °C in an argon atmosphere. The pyrolyzed nanocomposites display good catalytic activity towards the dry reforming of methane. The sample pyrolyzed at 700 °C possesses the best catalytic performance, which can be attributed to the in situ formed palladium nanoparticles and high BET surface area of about 233 m2 g−1. Full article
(This article belongs to the Special Issue Polymer-Derived Ceramic Materials: Design, Synthesis, and Applications)
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11 pages, 3477 KiB  
Article
Al2O3-Modified Polymer-Derived Ceramic SiCN High-Temperature Anti-Oxidative Composite Coating Fabricated by Direct Writing
by Chao Wu, Xiaochuan Pan, Fan Lin, Guochun Chen, Lida Xu, Yingjun Zeng, Yingping He, Daoheng Sun and Zhenyin Hai
Polymers 2022, 14(16), 3281; https://doi.org/10.3390/polym14163281 - 12 Aug 2022
Cited by 6 | Viewed by 2132
Abstract
A reliable protective layer is one of the main challenges in preventing oxidation of thin film sensors to achieve accurate, effective, and stable readings at high temperatures. In this work, an Al2O3-modified polymer-derived ceramic SiCN composite coating fabricated by [...] Read more.
A reliable protective layer is one of the main challenges in preventing oxidation of thin film sensors to achieve accurate, effective, and stable readings at high temperatures. In this work, an Al2O3-modified polymer-derived ceramic SiCN composite coating fabricated by a direct-writing technique is utilized as a protective layer for thin film sensors. The microstructure evolution of the Al2O3/SiCN films is examined herein. The protective layer exhibits excellent oxidation resistance and thermal stability at high temperatures up to 1000 °C, which contributes to improving the stability and lifetime of thin film sensors in extreme environments. The TiB2/SiCN thin film resistive grid with the Al2O3/SiCN composite film as a protective layer is fabricated and tested. The results indicate that the coating can protect the TiB2/SiCN thin film resistive grid at high temperatures up to 1000 °C, which is about 200 °C higher than that of the TiB2/SiCN thin film resistive grid without a protective layer. The resistance change rates of the TiB2/SiCN thin film resistive grid with a protective layer are 0.5%/h at 900 °C and 10.7%/h at 1000 °C. Full article
(This article belongs to the Special Issue Polymer-Derived Ceramic Materials: Design, Synthesis, and Applications)
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