Journal article
Instant-in-Air Liquid Metal Printed Ultrathin Tin Oxide for High-Performance Ammonia Sensors
Chung Kim Nguyen, Patrick D Taylor, Ali Zavabeti, Hamidah Alluhaybi, Samira Almalki, Xiangyang Guo, Mehmood Irfan, Mohammad Al Kobaisi, Samuel J Ippolito, Michelle JS Spencer, Sivacarendran Balendhran, Ann Roberts, Torben Daeneke, Kenneth B Crozier, Ylias Sabri, Nitu Syed
Advanced Functional Materials | Wiley | Published : 2024
Abstract
Liquid metal-based printing techniques are emerging as an exemplary platform for harvesting non-layered 2D materials with a thickness down to a few nanometres, leading to an ultra-large surface-area-to-volume ratio that is ideal for sensing applications. In this work, the synthesis of 2D tin dioxide (SnO2) by exfoliating the surface oxide of molten tin is reported which highlights the enhanced sensing capability of the obtained materials to ammonia (NH3) gas is reported. It is demonstrated that amperometric gas sensors based on liquid metal-derived 2D SnO2 nanosheets can achieve excellent NH3 sensing performance at low temperature (150 °C) with and without UV light assistance. Detection over..
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Funding Acknowledgements
The authors would also like to thank the RMIT Microscopy and Microanalysis Facility (RMMF) and the Micro Nano Research Facility (MNRF). The authors also acknowledge Dr. Irfan Haider Abidi and Dr. Hank Han (RMIT University) for sharing SnO<SUB>2</SUB> nanoparticles and experience. N. Syed recognizes the support of a McKenzie Postdoctoral Fellowship from the University of Melbourne. Y. Sabri acknowledges funding received from the Cooperative Research Centres Projects (CRC-P) Grant (CRCPXII000111). T. Daeneke and C. K. Nguyen acknowledge funding received from the Australian Research Council & apos;s (ARC) DECRA program (DE190100100). T. Daeneke also acknowledges funding received from the ARC via the discovery program (DP220101923). This research was also supported, in part, by the Australian Research Council (ARC) Centre of Excellence for Transformative Meta-Optical Systems (TMOS, CE200100010).r Open access publishing facilitated by The University of Melbourne, as part of the Wiley - The University of Melbourne agreement via the Council of Australian University Librarians.