journal article·2018-11-26

Magnetic Properties and Photocatalytic Applications of 2D Sheets of Nonlayered Manganese Telluride by Liquid Exfoliation

Aravind Puthirath Balan, Sruthi Radhakrishnan, Ram Neupane, Sadegh Yazdi, Liangzi Deng, Carlos A. de los Reyes, Amey Apte, Anand B. Puthirath, B. Manmadha Rao, Maggie Paulose, Robert Vajtai, Ching-Wu Chu, Angel A. Martí, Oomman K Varghese, Chandra Sekhar Tiwary, M. R. Anantharaman, Pulickel M Ajayan

ACS Applied Nano Materials· Volume 1· Issue 11
Publisher page

Abstract

Metal tellurides are highly sought after for energy and spintronic applications much of which is owed to its catalytic and magnetic properties. Confining it into two-dimensions and improving the surface area enriches its catalytic activity and magnetic properties. Herein, we demonstrate the isolation of ultrathin two-dimensional sheets of manganese(II)telluride having an average thickness of ∼2 nm and flake size of ∼100 nm by means of liquid phase exfoliation presumably for the first time. Vanishing of exchange interactions in two-dimensions results in paramagnetic ordering in manganese(II)telluride sheets while its pristine form prefers antiferromagnetic order. The exfoliated two-dimensional sheets were used to sensitize titania nanotubes to broaden the absorption spectrum and utilize visible light for photoelectrochemical water splitting.
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Research context

OpenAlex topics: 2D Materials and Applications · ZnO doping and properties · Quantum Dots Synthesis And Properties

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Affiliations

Department of Materials Science and NanoEngineering, Rice University, Houston, Texas 77005, United States

Department of Physics, Cochin University of Science and Technology, Kochi 682022, India

Department of Physics, University of Houston, Houston, Texas 77204, United States

Renewable and Sustainable Energy Institute, University of Colorado-Boulder, Boulder, Colorado 80309, United States

Texas Center for Superconductivity, University of Houston, Houston, Texas 77004, United States

Department of Chemistry, Rice University, Houston, Texas 77005, United States

Lawrence Berkeley National Lab, Berkeley, California 94720, United States

Materials Science and Engineering, Indian Institute of Technology Gandhinagar, Palaj, Gandhinagar 382355, India

Inter University Centre for Nanomaterials and Devices, Cochin University of Science and Technology, Kochi 682022, India

Funding

University Grants Commission · Science and Engineering Research Board · Army Research Office · Air Force Office of Scientific Research · Indo-US Science and Technology Forum · Texas Center for Superconductivity, University of Houston · Shell International Exploration and Production Inc. · T.L.L. Temple Foundation · John J. and Rebecca Moores Endowment

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