An X-state solid–liquid mixture with unusual mechanical properties formed by water and coordination polymer nanosheet nanoarchitectonics. Issue 20 (17th May 2022)

• Record Type: Journal Article
• Authors: Shi, Chunjing; Dang, Qi; Zhang, Wei; Cui, Jiwei; Liu, Jian; Hu, Ming
• Is Part Of: Nanoscale. Volume 14:Issue 20(2022)
• Page Start: 7729
• Page End: 7735
• Publication Date: 2022-05-17
• Subjects: Nanoscience -- Periodicals; Nanotechnology -- Periodicals; 620.505
• DOI: 10.1039/d1nr08114d
• Languages: English
• ISSNs: 2040-3364

Abstract

Abstract : We demonstrate an unusual state, the X state, by naturally drying up a dough which is composed of Ni(H2 O)2 [(Ni(CN)4 ]·H2 O nanosheets and water. This X-state mixture shows mechanical characteristics different from both liquids and brittle solids. Abstract : Removal of water from a mixture of water and inorganic solids usually leads to a drastic change in the mechanical properties from liquid-like to brittle solid type. Here, we demonstrate that there is an unusual state, the X state, formed by naturally drying up a dough which is composed of Ni(H2 O)2 [(Ni(CN)4 ]·H2 O nanosheets and water. This X-state mixture shows mechanical characteristics different from both pure liquids and brittle solids. The deformation curve of the X-state mixture contains three linear parts. However, the deformation is recoverable because the deformation curve can be repeated as long as fracture does not occur. The ice-like water formed among the nanosheets is believed to be an important reason for generating this X-state mixture. The unique properties of the X-state mixture may find applications, such as impact absorbents, which require materials with considerable strength, modulus and toughness.