journal article·2018-09-25

Bioinspired Supertough Graphene Fiber through Sequential Interfacial Interactions

Yuanyuan Zhang, Jingsong Peng, Mingzhu Li, Eduardo Saiz, Stephan E. Wolf, Qunfeng Cheng

ACS Nano· Volume 12· Issue 9
Publisher page

Abstract

Natural nacre exhibits extraordinary functional and structural diversity, combining high strength and toughness. The mechanical properties of nacre are attributed to (i) a highly arranged hierarchical layered structure of inorganic minerals (95 vol %) containing a small amount only of organic materials (5 vol %), (ii) abundant synergistic interfacial interactions, and (iii) formation under ambient temperature. Herein, inspired by these three design principles originating from natural nacre, the supertough bioinspired graphene-based nanocomposite fibers (BGNFs) are prepared under room temperature via sequential interfacial interactions of ionic bonding and π–π interactions. The resultant synergistic effect leads to a super toughness of 18.7 MJ m–3 as well as a high tensile strength of 740.1 MPa. In addition, the electrical conductivity of these supertough BGNFs is as high as 384.3 S cm–1. They can retain almost 80% of this conductivity even after 1000 cycles of loading–unloading testing, which makes these BGNFs promising candidates for application in flexible and stable electrical devices, such as strain sensors and actuators.
Source: openalex_inverted_index · Quality: baseline

Research context

OpenAlex topics: Graphene and Nanomaterials Applications · Bone Tissue Engineering Materials · Graphene research and applications

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Key Laboratory of Bio-inspired Smart Interfacial Science and Technology of Ministry of Education, School of Chemistry, Beijing Advanced Innovation Center for Biomedical Engineering, Beihang University, Beijing 100191, P. R. China

Key Laboratory of Green Printing, Institute of Chemistry, Chinese Academy of Sciences (ICCAS), Beijing 100190, P. R. China

Department of Materials, Centre for Advanced Structural Ceramics, Imperial College London, London SW7 2AZ, United Kingdom

Institute of Glass and Ceramics (WW3), Department of Materials Science and Engineering (WW), Friedrich-Alexander University Erlangen-Nürnberg (FAU), Martensstrasse 5, 91058 Erlangen, Germany

Interdisciplinary Center for Functional Particle Systems (FPS), Friedrich-Alexander University Erlangen-Nürnberg (FAU), Haberstrasse 9a, 91058 Erlangen, Germany

Funding

Program for New Century Excellent Talents in University · Beihang University · State Administration of Foreign Experts Affairs · Ministry of Education of the People's Republic of China · Fok Ying Tong Education Foundation · Aeronautical Science Foundation of China · National Natural Science Foundation of China · State Key Laboratory for Modification of Chemical Fibers and Polymer Materials, Donghua University · State Key Laboratory of Organic-Inorganic Composites, Beijing University of Chemical Technology

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