Cellulose‐Based Hybrid Aerogels: Strategies toward Design and Functionality. Issue 51 (4th October 2021)

• Record Type: Journal Article
• Authors: Rahmanian, Vahid; Pirzada, Tahira; Wang, Siyao; Khan, Saad A.
• Is Part Of: Advanced materials. Volume 33:Issue 51(2021)
• Page Start: n/a
• Page End: n/a
• Publication Date: 2021-10-04
• Subjects: cellulose -- graphene oxide -- hybrid aerogels -- metal organic frameworks -- nanocellulose -- silica -- triboelectric nanogenerators; Materials -- Periodicals; Chemical vapor deposition -- Periodicals; 620.11
• DOI: 10.1002/adma.202102892
• Languages: English
• ISSNs: 0935-9648

Abstract

Abstract: The brittle nature of early aerogels developed from inorganic precursors fueled the discovery of their organic counterparts. Prominent among these organics are cellulose aerogels because of their natural abundance, biocompatibility, sustainable precursors, and tunable properties. The hierarchical structure of cellulose, from polymers to nano/microfibers, further facilitates fabrication of materials across multiple length scales with added applicability. However, the inherent flammability, structural fragility, and low thermal stability have limited their use. Recently developed cellulose‐based hybrid aerogels offer strong potential owing to their tunability and enhanced functionality brought about by combining the inherent properties of cellulose with organic and inorganic components. A survey of the historical background and scientific achievements in the design and development of cellulose‐based hybrid aerogel materials is encompassed here. The impacts of incorporating organic and inorganic ingredients with cellulose and the corresponding synergistic effects are discussed in terms of their design and functionality. The underlying principles governing the structural integration and functionality enhancement are also analyzed. The latest developments of cellulose‐based hybrid aerogels fabricated from nontraditional incipient aerogels, such as fibrous webs, are also explored. Finally, future opportunities that could make these materials achieve even greater impacts through improved scalability, rationally designed synthesis, and multifunctional properties are discussed. Abstract : Recently developed cellulose‐based hybrid aerogels provide a powerful material platform with synergistic and enhanced functionalities for diverse applications brought about by combining the inherent attributes of cellulose with organic/inorganic components. The design, characterization, and performance of predominant types of cellulose‐hybrid aerogels are examined with an eye toward future perspectives to make these materials achieve even greater heights.