Molecularly Intercalated Nanoflakes: A Supramolecular Composite for Strong Energy Absorption (pages 4457–4461)
Chichao Yu, Ziguang Chen, Hui Li, Joseph Turner, Xiao Cheng Zeng, Zhihe Jin, Jinyue Jiang, Boulos Youssef and Li Tan
Version of Record online: 9 SEP 2010 | DOI: 10.1002/adma.201000546
Nanoflakes, one type of supramolecules that consist of alternating inorganic layers separated by organic moieties, are demonstrated as a good candidate for energy absorption as a thin film. When a bulky molecule is inserted between those layered structures, both modulus and specific energy absorption were increased 12- and 9-fold, to 12.5 GPa and 275 J/g. Extensive interlayer glide during mechanical loadings could have rendered such a strong plastic deformation, suggesting promise in protecting engineered structures or human bodies against external impact with minimal added weight or volume.