Magnesium oxide nanocubes deposited on an overhead projector sheet: synthesis and resistivity-based hydrogen sensing capability

Magnesium oxide nanocubes deposited on an overhead projector sheet: synthesis and... This work reports the growth of magnesium oxide (MgO) nanocubes by thermal chemical vapor deposition at various temperatures. The MgO nanocubes were investigated by X-ray diffraction, FESEM, EDAX, TEM and FTIR studies to study its various properties. The material is well-dispersed and has a cubical shape with an average size of 16 nm. XRD shows a face cubic centered structure, and SEM and TEM reveal nanocube morphology. The mechanism of the growth process is briefly detailed. The MgO nanocubes, if deposited on an overhead projector sheet, can be used as a chemoresistive sensor for hydrogen at a constant temperature of typically 200 °C and an applied voltage of 5 V. The sensor can detect hydrogen in the 3000 to 5000 ppm concentration range, and the lowest detectable concentration (at a signal-to-noise ratio of 3) is 3000 ppm. http://www.deepdyve.com/assets/images/DeepDyve-Logo-lg.png Microchimica Acta Springer Journals

Magnesium oxide nanocubes deposited on an overhead projector sheet: synthesis and resistivity-based hydrogen sensing capability

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Publisher
Springer Vienna
Copyright
Copyright © 2017 by Springer-Verlag Wien
Subject
Chemistry; Nanochemistry; Nanotechnology; Characterization and Evaluation of Materials; Analytical Chemistry; Microengineering
ISSN
0026-3672
eISSN
1436-5073
D.O.I.
10.1007/s00604-017-2348-3
Publisher site
See Article on Publisher Site

Abstract

This work reports the growth of magnesium oxide (MgO) nanocubes by thermal chemical vapor deposition at various temperatures. The MgO nanocubes were investigated by X-ray diffraction, FESEM, EDAX, TEM and FTIR studies to study its various properties. The material is well-dispersed and has a cubical shape with an average size of 16 nm. XRD shows a face cubic centered structure, and SEM and TEM reveal nanocube morphology. The mechanism of the growth process is briefly detailed. The MgO nanocubes, if deposited on an overhead projector sheet, can be used as a chemoresistive sensor for hydrogen at a constant temperature of typically 200 °C and an applied voltage of 5 V. The sensor can detect hydrogen in the 3000 to 5000 ppm concentration range, and the lowest detectable concentration (at a signal-to-noise ratio of 3) is 3000 ppm.

Journal

Microchimica ActaSpringer Journals

Published: Jun 9, 2017

References

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