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Herein, a facile template\u2010directed method is reported to produce macroscopic free\u2010standing cobalt silicate (CS)@RFR core\u2010shell nanobelt aerogels that display superelastic behavior and outstanding thermal insulating and fire\u2010resistant capability. The synthesis relies on the polymerization of RFR on pre\u2010formed CS nanobelts which leads to in situ formation of hydrogel monoliths that can be transformed to corresponding aerogels by a freeze\u2010drying method. The composite nanobelt aerogel can withstand a compressive load of more than 4000 times of its own weight and fully recover after the removal of the weight. It can also sustain 1000 compressive cycles with 6.9% plastic deformation and 91.8% of the maximum stress remaining, with a constant energy loss coefficient as low as 0.16, at the set strain of 30%. The extraordinary mechanical properties are believed to be associated with the structural flexibility of the nanobelts and the RFR\u2010reinforced joints between the crosslinked nanobelts. These inorganic\u2010organic composite aerogels also show good thermal insulation and excellent fire\u2010proof capability. This work provides an effective strategy for fabricating superelastic RFR\u2010based aerogels which show promising applications in fields such as thermal insulation, energy storage, and catalyst support.<\/jats:p>","DOI":"10.1002\/smll.202302724","type":"journal-article","created":{"date-parts":[[2023,8,26]],"date-time":"2023-08-26T08:50:11Z","timestamp":1693039811000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":16,"title":["Superelastic Cobalt Silicate@Resorcinol Formaldehyde Resin Core\u2010Shell Nanobelt Aerogel Monoliths with Outstanding Fire Retardant and Thermal Insulating Capability"],"prefix":"10.1002","volume":"19","author":[{"given":"Fuzhong","family":"Li","sequence":"first","affiliation":[{"name":"Fujian Key Laboratory of Surface and Interface Engineering for High Performance Materials College of Materials Xiamen University  422 Siming South Road Xiamen 361005 China"},{"name":"Innovation Laboratory for Sciences 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