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Unzipping Chemical Bonds of Non-Layered Bulk Structures to Form Ultrathin Nanocrystals

33 Pages Posted: 28 Oct 2020 Publication Status: Published

See all articles by Liangxu Lin

Liangxu Lin

University of Wollongong - ARC Centre of Excellence for Electromaterials Science

Na Xu

Wuhan University of Science and Technology - Institute of Advanced Materials and Nanotechnology

Chan Wu

University of Massachusetts Worcester - Department of Microbiology and Physiological Systems

Juntong Huang

Nanchang Hangkong University - School of Materials Science and Engineering

Andrew Nattestad

University of Wollongong - ARC Centre of Excellence for Electromaterials Science

Xueling Zheng

Fujian Normal University - College of Chemistry and Material Science

Jun Chen

University of Wollongong - ARC Centre of Excellence for Electromaterials Science

Gordon G. Wallace

University of Wollongong - ARC Centre of Excellence for Electromaterials Science

Shaowei Zhang

University of Exeter - College of Engineering, Mathematics and Physical Sciences

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Abstract

The rich electronic and band structures of monolayered crystals offer versatile physical/chemical properties and subsequently a wide range of applications. Fabrication, particularly by the top-down “exfoliation” processes, rely on the presence of weak Van der Waals force between individual layers. Due to the strong chemical bonds between planes and atoms, un-zipping ultra-thin crystals (from one to several unit cells thick) from non-layered structures is more challenging. This work reports a technique which can be used to prepare such ultra-thin crystals from bulk non-layered structures (ɑ-/β-MnO2, ZnO, TiO2, ɑ-TiB2). The physical and optical properties of these materials are characterized and contrasted against those from their bulk phases. The work presented here represents a tool kit for the preparation of novel 2D non-layered nanomaterials, providing significant contributions to this family of materials, paving the way for even more applications. Furthermore, we show the application of these novel NCs for bio-sensing and electrochemical oxygen reduction.

Keywords: non-layered nanomaterials, ultrathin 2D materials, monolayered crystals, fabrications, bio-sensing, electrocatlaysis

Suggested Citation

Lin, Liangxu and Xu, Na and Wu, Chan and Huang, Juntong and Nattestad, Andrew and Zheng, Xueling and Chen, Jun and Wallace, Gordon G. and Zhang, Shaowei, Unzipping Chemical Bonds of Non-Layered Bulk Structures to Form Ultrathin Nanocrystals. Available at SSRN: https://ssrn.com/abstract=3713491 or http://dx.doi.org/10.2139/ssrn.3713491
This version of the paper has not been formally peer reviewed.

Liangxu Lin

University of Wollongong - ARC Centre of Excellence for Electromaterials Science ( email )

Australia

Na Xu

Wuhan University of Science and Technology - Institute of Advanced Materials and Nanotechnology

947 Heping Avenue,Qingshan District
null
Wuhan, Hubei 430081
China

Chan Wu

University of Massachusetts Worcester - Department of Microbiology and Physiological Systems ( email )

United States

Juntong Huang

Nanchang Hangkong University - School of Materials Science and Engineering ( email )

Nanchang
China

Andrew Nattestad

University of Wollongong - ARC Centre of Excellence for Electromaterials Science ( email )

Australia

Xueling Zheng

Fujian Normal University - College of Chemistry and Material Science ( email )

Fuzhou, 350007
China

Jun Chen

University of Wollongong - ARC Centre of Excellence for Electromaterials Science ( email )

Australia

Gordon G. Wallace

University of Wollongong - ARC Centre of Excellence for Electromaterials Science

Australia

Shaowei Zhang (Contact Author)

University of Exeter - College of Engineering, Mathematics and Physical Sciences ( email )

Northcote House
The Queen's Drive
Exeter, Devon EX4 4QJ
United Kingdom

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