Abstract
A new concept for the additive manufacturing of nickel-modified polymer-derived ceramics via vat-based photopolymerization is presented. A photoactive polysiloxane resin system modified by nickel nitrate via methacrylic acid complexation was developed and modified to facilitate vat-based photopolymerization. Through pyrolysis of the Ni-modified preceramic polymer at temperatures between 600 and 800 °C, amorphous SiOC components with well-dispersed Ni nanoparticles can be obtained. The modified polymer and the fabricated structures were characterized by photorheology, thermal analysis, scanning and transmission electron microscopy, optical coherence tomography, and powder X-ray diffraction. In addition, the effect of pyrolysis temperature on specific surface area, crystallinity, and shrinkage was investigated. The developed material systems enable additive manufacturing of porous SiOC structures containing crystalline, uniformly distributed, and bimodally sized Ni nanoparticles, exhibiting catalytic activity suitable for CO2 methanation. The developed printable SiOC/Ni materials represent a promising approach for combining metal-modified polymer-derived ceramic systems and additive manufacturing for prospective catalysis applications.
Sign-in/Register to access full text options 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callDisclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
