Inorganic Hydrogel Based on Low-Dimensional Nanomaterials.
Bing Lu1,2, Huhu Cheng1,2, Liangti Qu1,2
1Key Laboratory of Organic Optoelectronics and Molecular Engineering, Ministry of Education, Department of Chemistry, Tsinghua University, Beijing 100084, P. R. China.
ACS Nano
|January 15, 2024
Summary
Inorganic hydrogels, composed of nanoscale bones and water, offer high conductivity and stability. These versatile materials show promise for energy storage, catalysis, and environmental applications.
Area of Science:
- Materials Science
- Nanotechnology
- Chemistry
Background:
- Inorganic hydrogels are 3D nanomaterials comprising inorganic nanoscale structures and water.
- They are synthesized using various building blocks like metal nanoparticles, nanowires, graphene, and MXene.
- Their unique porous architecture is achieved through sol-gel or gelation processes.
Purpose of the Study:
- To provide a comprehensive overview of inorganic hydrogels and their derivatives.
- To discuss the structures, gelation mechanisms, and properties of these materials.
- To highlight their applications in energy and environmental fields.
Main Methods:
- Review of existing literature on inorganic hydrogels.
- Analysis of different compositions and their assembly into porous structures.
- Examination of gelation mechanisms (covalent and noncovalent interactions).
Main Results:
- Inorganic hydrogels exhibit high electrical/thermal conductivity, corrosion resistance, thermal stability, and large surface area.
- Derivatives like inorganic aerogels and xerogels expand their functional capabilities.
- Demonstrated potential in energy storage, catalysis, adsorption, sensing, and solar steam generation.
Conclusions:
- Inorganic hydrogels and their derivatives are highly promising for advanced energy and environmental applications.
- Their tunable properties and versatile synthesis routes enable diverse functionalities.
- Further research into their structures and mechanisms will unlock broader application potential.
