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Development of high efficiency nanocatalysts using novel electron beam fabrication and imaging techniques

Funding: 2014: $90,000
2015: $90,000
2016: $90,000

Project Member(s): Toth, M., Lobo, C.

Funding or Partner Organisation: Australian Research Council (ARC Discovery Projects)

Start year: 2014

Summary: This project will develop a new approach for fabricating and studying nanocatalysts based on our expertise in electron beam induced deposition (EBID) of nanostructured materials and environmental scanning electron microscopy (ESEM). ESEM will be used to conduct unique, time-resolved studies of nano-scale, catalyzed chemical reactions at elevated temperatures and pressures. The project will advance fundamental understanding and applicability of EBID, ESEM and nanocatalysis. It will yield novel, highly efficient, industrially relevant nanocatalysts for the production of renewable (green) and low emission (clean) energy, with particular applications in hydrogen fuel cells and the catalytic oxidation of carbon monoxide.

Publications:

Duong, NMH, Regan, B, Toth, M, Aharonovich, I & Dawes, J 2019, 'A Random Laser Based on Hybrid Fluorescent Dye and Diamond Nanoneedles', physica status solidi (RRL) - Rapid Research Letters, vol. 13, no. 2.
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Berhane, AM, Jeong, K-Y, Bradac, C, Walsh, M, Englund, D, Toth, M & Aharonovich, I 2018, 'Photophysics of GaN single-photon emitters in the visible spectral range', PHYSICAL REVIEW B, vol. 97, no. 16.
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Bishop, J, Fronzi, M, Elbadawi, C, Nikam, V, Pritchard, J, Fröch, JE, Duong, NMH, Ford, MJ, Aharonovich, I, Lobo, CJ & Toth, M 2018, 'Deterministic Nanopatterning of Diamond Using Electron Beams.', ACS nano, vol. 12, no. 3, pp. 2873-2882.
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Bray, K, Kato, H, Previdi, R, Sandstrom, R, Ganesan, K, Ogura, M, Makino, T, Yamasaki, S, Magyar, AP, Toth, M & Aharonovich, I 2018, 'Single crystal diamond membranes for nanoelectronics.', Nanoscale, vol. 10, no. 8, pp. 4028-4035.
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Elbadawi, C, Queralt, RT, Xu, Z-Q, Bishop, J, Ahmed, T, Kuriakose, S, Walia, S, Toth, M, Aharonovich, I & Lobo, CJ 2018, 'Encapsulation-Free Stabilization of Few-Layer Black Phosphorus.', ACS applied materials & interfaces, vol. 10, no. 29, pp. 24327-24331.
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Kianinia, M, Bradac, C, Sontheimer, B, Wang, F, Tran, TT, Nguyen, M, Kim, S, Xu, Z-Q, Jin, D, Schell, AW, Lobo, CJ, Aharonovich, I & Toth, M 2018, 'All-optical control and super-resolution imaging of quantum emitters in layered materials.', Nature communications, vol. 9, no. 1, pp. 874-874.
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Kim, S, Fröch, JE, Christian, J, Straw, M, Bishop, J, Totonjian, D, Watanabe, K, Taniguchi, T, Toth, M & Aharonovich, I 2018, 'Photonic crystal cavities from hexagonal boron nitride.', Nature Communications, vol. 9, no. 1, pp. 2623-2623.
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Kim, S, Toth, M & Aharonovich, I 2018, 'Design of photonic microcavities in hexagonal boron nitride.', Beilstein journal of nanotechnology, vol. 9, pp. 102-108.
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Ngoc My Duong, H, Nguyen, MAP, Kianinia, M, Ohshima, T, Abe, H, Watanabe, K, Taniguchi, T, Edgar, JH, Aharonovich, I & Toth, M 2018, 'Effects of High-Energy Electron Irradiation on Quantum Emitters in Hexagonal Boron Nitride.', ACS Applied Materials and Interfaces, vol. 10, no. 29, pp. 24886-24891.
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Scott, JA, Angeloski, A, Aharonovich, I, Lobo, CJ, McDonagh, A & Toth, M 2018, 'In situ study of the precursor conversion reactions during solventless synthesis of Co9S8, Ni3S2, Co and Ni nanowires.', Nanoscale, vol. 10, no. 33, pp. 15669-15676.
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Xu, Z-Q, Elbadawi, C, Tran, TT, Kianinia, M, Li, X, Liu, D, Hoffman, TB, Nguyen, M, Kim, S, Edgar, JH, Wu, X, Song, L, Ali, S, Ford, M, Toth, M & Aharonovich, I 2018, 'Single photon emission from plasma treated 2D hexagonal boron nitride.', Nanoscale, vol. 10, no. 17, pp. 7957-7965.
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Berhane, AM, Jeong, K-Y, Bodrog, Z, Fiedler, S, Schroder, T, Trivino, NV, Palacios, T, Gali, A, Toth, M, Englund, D & Aharonovich, I 2017, 'Bright Room-Temperature Single-Photon Emission from Defects in Gallium Nitride', ADVANCED MATERIALS, vol. 29, no. 12.
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Kianinia, M, Regan, B, Tawfik, SA, Tran, TT, Ford, MJ, Aharonovich, I & Toth, M 2017, 'Robust Solid-State Quantum System Operating at 800 K', ACS Photonics, vol. 4, no. 4, pp. 768-773.
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Martin, AA, Filevich, J, Straw, M, Randolph, S, Botman, A, Aharonovich, I & Toth, M 2017, 'Radiation-Induced Damage and Recovery of Ultra-Nanocrystalline Diamond: Toward Applications in Harsh Environments.', ACS Applied Materials and Interfaces, vol. 9, no. 45, pp. 39790-39794.
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Tawfik, SA, Ali, S, Fronzi, M, Kianinia, M, Tran, TT, Stampfl, C, Aharonovich, I, Toth, M & Ford, MJ 2017, 'First-principles investigation of quantum emission from hBN defects.', Nanoscale, vol. 9, no. 36, pp. 13575-13582.
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Tran, TT, Choi, S, Scott, JA, Xu, ZQ, Zheng, C, Seniutinas, G, Bendavid, A, Fuhrer, MS, Toth, M & Aharonovich, I 2017, 'Room-Temperature Single-Photon Emission from Oxidized Tungsten Disulfide Multilayers', Advanced Optical Materials, vol. 5, no. 5, pp. 1-5.
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Tran, TT, Wang, D, Xu, Z-Q, Yang, A, Toth, M, Odom, TW & Aharonovich, I 2017, 'Deterministic Coupling of Quantum Emitters in 2D Materials to Plasmonic Nanocavity Arrays.', Nano Letters, vol. 17, no. 4, pp. 2634-2639.
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Zachreson, C, Wolff, C, Whitchurch, CB & Toth, M 2017, 'Emergent pattern formation in an interstitial biofilm.', Physical Review E, vol. 95, no. 1-1, pp. 1-14.
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Zachreson, C, Yap, X, Gloag, ES, Shimoni, R, Whitchurch, CB & Toth, M 2017, 'Network patterns in exponentially growing two-dimensional biofilms.', Physical Review E, vol. 96, no. 4-1, pp. 042401-042401.
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Aharonovich, I, Englund, D & Toth, M 2016, 'Solid-state single-photon emitters', NATURE PHOTONICS, vol. 10, no. 10, pp. 631-641.
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Bray, K, Sandstrom, R, Elbadawi, C, Fischer, M, Schreck, M, Shimoni, O, Lobo, C, Toth, M & Aharonovich, I 2016, 'Localization of Narrowband Single Photon Emitters in Nanodiamonds', ACS APPLIED MATERIALS & INTERFACES, vol. 8, no. 11, pp. 7590-7594.
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Choi, S, Toan, TT, Elbadawi, C, Lobo, C, Wang, X, Juodkazis, S, Seniutinas, G, Toth, M & Aharonovich, I 2016, 'Engineering and Localization of Quantum Emitters in Large Hexagonal Boron Nitride Layers', ACS APPLIED MATERIALS & INTERFACES, vol. 8, no. 43, pp. 29642-29648.
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Scott, JA, Totonjian, D, Martin, AA, Toan, TT, Fang, J, Toth, M, McDonagh, AM, Aharonovich, I & Lobo, CJ 2016, 'Versatile method for template-free synthesis of single crystalline metal and metal alloy nanowires', NANOSCALE, vol. 8, no. 5, pp. 2804-2810.
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Shanley, TW, Bonnie, F, Scott, J & Toth, M 2016, 'Role of gas molecule complexity in environmental electron microscopy and photoelectron yield spectroscopy.', ACS applied materials & interfaces, vol. 8, pp. 27305-27310.
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Toan, TT, Elbadawi, C, Totonjian, D, Lobo, CJ, Grosso, G, Moon, H, Englund, DR, Ford, MJ, Aharonovich, I & Toth, M 2016, 'Robust Multicolor Single Photon Emission from Point Defects in Hexagonal Boron Nitride', ACS NANO, vol. 10, no. 8, pp. 7331-7338.
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Tran, TT, Bray, K, Ford, MJ, Toth, M & Aharonovich, I 2016, 'Quantum emission from hexagonal boron nitride monolayers.', Nature nanotechnology, vol. 11, no. 1, pp. 37-41.
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Cullen, J, Bahm, A, Lobo, CJ, Ford, MJ & Toth, M 2015, 'Localized probing of gas molecule adsorption energies and desorption attempt frequencies', Journal of Physical Chemistry C, vol. 119, no. 28, pp. 15948-15953.
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Cullen, J, Lobo, CJ, Ford, MJ & Toth, M 2015, 'Electron-Beam-Induced Deposition as a Technique for Analysis of Precursor Molecule Diffusion Barriers and Prefactors.', ACS applied materials & interfaces, vol. 7, no. 38, pp. 21408-21415.
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Martin, AA, Bahm, A, Bishop, J, Aharonovich, I & Toth, M 2015, 'Dynamic Pattern Formation in Electron-Beam-Induced Etching', PHYSICAL REVIEW LETTERS, vol. 115, no. 25.
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Toth, M, Lobo, C, Friedli, V, Szkudlarek, A & Utke, I 2015, 'Continuum models of focused electron beam induced processing', Beilstein Journal of Nanotechnology, vol. 6, no. 1, pp. 1518-1540.
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Tran, TT, Fang, J, Zhang, H, Rath, P, Bray, K, Sandstrom, RG, Shimoni, O, Toth, M & Aharonovich, I 2015, 'Facile Self-Assembly of Quantum Plasmonic Circuit Components', ADVANCED MATERIALS, vol. 27, no. 27, pp. 4048-4053.
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Shanley, TW, Martin, AA, Aharonovich, I & Toth, M 2014, 'Localized chemical switching of the charge state of nitrogen-vacancy luminescence centers in diamond', APPLIED PHYSICS LETTERS, vol. 105, no. 6.
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Toth, M, Zachreson, C & Aharonovich, I 2014, 'Role of recombination pathway competition in spatially resolved cathodoluminescence spectroscopy', APPLIED PHYSICS LETTERS, vol. 105, no. 24.
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Zachreson, C, Martin, AA, Aharonovich, I & Toth, M 2014, 'Electron Beam Controlled Restructuring of Luminescence Centers in Polycrystalline Diamond', ACS APPLIED MATERIALS & INTERFACES, vol. 6, no. 13, pp. 10367-10372.
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Martin, AA, Randolph, S, Botman, A, Toth, M & Aharonovich, I, 'Direct-write milling of diamond by a focused oxygen ion beam'.
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Keywords: nanostructure fabrication,environmental microscopy,heterogeneous catalysis

FOR Codes: Nanoscale Characterisation, Expanding Knowledge in the Physical Sciences, Functional Materials, Fuel Cells (excl. Solid Oxide), Nanomaterials, Management of Gaseous Waste from Transport Activities (excl. Greenhouse Gases)