Johannes Essmeister
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View article: Hierarchically Porous Ceramic and Metal‐Ceramic Hybrid Materials Structured by Vat Photopolymerization‐Induced Phase Separation
Hierarchically Porous Ceramic and Metal‐Ceramic Hybrid Materials Structured by Vat Photopolymerization‐Induced Phase Separation Open
Additive manufacturing techniques such as vat photopolymerization have laid the foundation for impressive advances in the 3D structuring of ceramic materials. However, simultaneous structuring of these complex‐shaped ceramic objects on the…
View article: Polymer-derived Ni/SiOC materials structured by vat-based photopolymerization with catalytic activity in CO2 methanation
Polymer-derived Ni/SiOC materials structured by vat-based photopolymerization with catalytic activity in CO2 methanation Open
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 w…
View article: Polymer-derived SiOC as support material for Ni-based catalysts: CO2 methanation performance and effect of support modification with La2O3
Polymer-derived SiOC as support material for Ni-based catalysts: CO2 methanation performance and effect of support modification with La2O3 Open
In this study, we investigated Ni supported on polymer-derived ceramics as a new class of catalyst materials. Catalysts have to withstand harsh reaction conditions requiring the use of a support with outstanding thermal and mechanical stab…
View article: Influence of hot liquid flowing water on Zeolite Y stability
Influence of hot liquid flowing water on Zeolite Y stability Open
Zeolite Y is used in a wide field of catalysis because of its high surface area and strong acidity. Since flowing water is present in many catalytic liquid phase reactions, its impact was investigated. For that, the zeolite Y was treated w…
View article: Stereolithography-based additive manufacturing of polymer-derived SiOC/SiC ceramic composites
Stereolithography-based additive manufacturing of polymer-derived SiOC/SiC ceramic composites Open
In order to overcome challenges typically encountered during additive manufacturing of ceramics via the polymer precursor route, a novel polymer-derived SiOC/SiC composite system suitable for advanced geometric designs achievable by lithog…
View article: High modulus polyimide particle-reinforcement of epoxy composites
High modulus polyimide particle-reinforcement of epoxy composites Open
A novel class of fully organic composite materials with well-balanced mechanical properties and improved thermal stability was developed by incorporating highly crystalline, hydrothermally synthesized polyimide microparticles into an epoxy…