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Fabrication of Three-Dimensional Graphene-Based Polyhedrons via Origami-Like Self-Folding

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Graphene oxide-based large-area dynamic covalent interfaces.

Boyi Situ¹, Zhe Zhang¹, Liang Zhao¹

¹College of Physics Science and Technology & Microelectronics Industry Research Institute, Yangzhou University, Jiangsu 225009, China. zhaoliang@yzu.edu.cn.

|November 2, 2023

Summary

This study introduces large-area dynamic covalent interfaces (LDCIs) on graphene oxide materials, enabling long-range chemical migration for advanced self-adaptive applications. These interfaces enhance material performance in areas like sensing and drug delivery.

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Synthesis and Functionalization of 3D Nano-graphene Materials: Graphene Aerogels and Graphene Macro Assemblies

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Area of Science:

Materials Science
Chemistry

Background:

Dynamic materials adapt to external stimuli through reversible structural changes.
Dynamic covalent materials (DCMs) utilize reversible dynamic covalent bonds (DCBs) for self-healing and shape memory properties.
Current DCB dynamics are typically limited to the nanoscale.

Purpose of the Study:

To explore the realization of long-range chemical migration via dynamic covalent reactions on graphene oxide (GO) interfaces.
To introduce the concept of large-area dynamic covalent interfaces (LDCIs).
To summarize strategies and applications for LDCIs.

Main Methods:

Review of literature on DCB-based reversible reactions.
Analysis of strategies for achieving long-range migration on GO interfaces.
Discussion of interfacial engineering techniques.

Main Results:

Demonstration of LDCIs through spatially connected DCB reactions on GO interfaces.
Identification of effective strategies: water adsorption, interfacial curvature, and metal-substrate support.
Summary of potential applications in water dissociation and humidity sensing.

Conclusions:

LDCIs enable long-range chemical composition migration, overcoming nanoscale limitations of DCBs.
LDCIs offer a pathway for developing advanced materials with enhanced dynamic characteristics.
Future outlook includes realizing LDCIs on other 2D materials for applications like drug delivery and biosensing.