The Transformative and Versatile Role of Cellulose Nanomaterials in Templating and Shaping Multiscale Mesostructured Ceramics

The transformative and versatile role of cellulose nanomaterials (CNMs) as an enabling technology in the preparation of multiscale mesostructured ceramics, with pore sizes in the meso‐ (2–50 nm) and macroporosity (above 50 nm) range with controlled porous architecture across the structure is explored. CNMs have revolutionized functional advanced materials concepts and technology by using natural resources to derive superb properties. Its unique chemical and physical properties have inspired its exploitation as a reinforcement agent, stimuli responsive tool, and templating agent mostly for biologic and polymeric materials, as well as for metals and ceramics. CNMs can act as a sacrificial filler templating agent, a surface modifier agent, and as an aid for shaping macrostructures into bulk samples. A deep knowledge of the synergistic interaction mechanisms between CNMs and ceramic particles to assemble them in solution and into solid structures is key to advance this technology, and to develop a predictive understanding of synthesis and processing mechanisms that relates morphology evolution, processing, and final physical properties. The potential ease of processing and versatility of CNMs for functional ceramic technology, intimately linked to the CNMs’ nature and properties, will make a significant impact with respect to the current state of the art. This work explores the transformative and versatile role of cellulose nanomaterials as an enabling technology in the preparation of multiscale mesostructured ceramics, with pore sizes in the meso‐ (2–50 nm) and macroporosity (above 50 nm) range and a regular architecture and distribution across the structure. This utilizes cellulose not only as a template but also as a colloidal modifier.