Details

Autor(en) / Beteiligte

• Wang, Yang
• Zhang, Yu
• Zhang, Zheng
• Li, Ting
• Jiang, Jie
• Zhang, Xuhui
• Liu, Tianxi
• Qiao, Jinliang
• Huang, Jing
• Dong, Weifu

Titel

Pistachio-Inspired Bulk Graphene Oxide-Based Materials with Shapeability and Recyclability

Ist Teil von

• ACS nano, 2022-02, Vol.16 (2), p.3394-3403

Ort / Verlag

United States

Erscheinungsjahr

2022

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Nowadays, despite the fact that recent progress has been reported to mimic natural structural materials (especially nacre), designing bioinspired ultrastrong composites in a universal, viable, and scalable manner still remains a long-standing challenge. In particular, pistachio shells show high tissue strength attributed to the cellulose sheet laminated microstructures. Compared with nacre, pistachio shells own interlocking mortise-tenon joints in their structure, which offer higher energy dissipation and deformability. Here we present a strategy to produce nanocomposites with pistachio-mimetic structures through repeated kneading of graphene oxide (GO) in a dynamic covalent and supramolecular poly(sodium thioctic) (pST) system. The dynamic nature of the polymeric backbones endows the resultant GO-based composite with full recyclability and three-dimensional shapeability. The superior mechanical properties of the pistachio-mimetic composite can be attributed to the mortise-tenon joints design in the structure, which has not been achieved in the nacre-mimetic composite. The resulting composite also exhibits high thermal conductivity (15.6 W/(m·K)), yielding an alternative approach to design in engineered and thermal management materials.