Supra-ceramics: a molecule-driven frontier of inorganic materials

Sci Technol Adv Mater. 2024 Oct 16;25(1):2416384. doi: 10.1080/14686996.2024.2416384. eCollection 2024.

Abstract

Discoveries and technological innovations over the past decade are transforming our understanding of the properties of ceramics, such as 'hard', 'brittle', and 'homogeneous'. For example, inorganic crystals containing molecular anions exhibit excellent secondary battery characteristics, and the fusion of inorganic solids and molecules results in innovative catalytic functions and physical properties. Different from the conventional ceramics such as metal oxides that are formed by monatomic cations and anions, unique properties and functions can be expected in molecular-incorporated inorganic solids, due to the asymmetric and dynamic properties brought about by the constituent molecular units. We name the molecular-incorporated inorganic materials that produce innovative properties and functions as supra-ceramics. In this article, we describe various kinds of supra-ceramics from the viewpoint of synthesis, analysis and physical properties/functions for a wide range of applications.

Keywords: CO2 conversion; Metal complexes; batteries; coordination polymers; metal-organic frameworks; organic-inorganic hybrids; perovskites; photocatalysts; proton conductors; solar cells.

Plain language summary

Recent discoveries/innovations are transforming ceramics by integrating molecular units, leading to new properties like enhanced battery performance and catalytic functions. Supra-ceramics, combining molecules and solids, promise innovative materials development.

Publication types

  • Review

Grants and funding

This work was supported by Grants-in-Aid for Transformative Research Areas (A) “Supra-ceramics” [JP22H05142, JP22H05143, JP22H05144, JP22H05145, JP22H05146, JP22H05147 and JP22H05148].