Journal
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
Volume 54, Issue 8, Pages 2397-2401Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/anie.201410668
Keywords
aerogels; compressibility; graphene oxide; resorcinol
Categories
Funding
- Ministry of Science and Technology of China
- National Basic Research Program of China [2014CB931800, 2010CB934700, 2013CB933900]
- National Natural Science Foundation of China [21431006, 91022032, 91227103, 2060190175]
- Chinese Academy of Sciences [KJZD-EW-M01-1]
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Resorcinol-formaldehyde (RF) and graphene oxide (GO) aerogels have found a variety of applications owing to their excellent properties and remarkable flexibility. However, the macroscopic and controllable synthesis of their composite gels is still a great challenge. By using GO sheets as template skeletons and metal ions (Co2+, Ni2+, or Ca2+) as catalysts and linkers, the first low-temperature scalable strategy for the synthesis of a new kind of RF-GO composite gel with tunable densities and mechanical properties was developed. The aerogels can tolerate a strain as high as 80% and quickly recover their original morphology after the compression has been released. Owing to their high compressibility, the gels might find applications in various areas, for example, as adsorbents for the removal of dye pollutants and in oil-spill cleanup.
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