Vertically Ordered Hematite Nanotube Array as an Ultrasensitive and Rapid Response Acetone Sensor
Source abstract
Abstract
Vertically ordered nanotube array is a desirable configuration to improve gas sensing properties of the hematite which is the most abundant and cheapest metal oxide semiconductor on earth but has low and sluggish chemiresistive responses. We have synthesized a vertically aligned, highly ordered hematite nanotube array directly on a patterned SiO2/Si substrate and then it used as a gas sensor without additional processing. The nanotube array sensor shows unprecedentedly ultrahigh and selective responses to acetone with detection limits down to a few parts per billion and response time shorter than 3 s.
Source: openalex_inverted_index · Quality: baseline
Research context
OpenAlex topics: Gas Sensing Nanomaterials and Sensors · Analytical Chemistry and Sensors · Iron oxide chemistry and applications
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
Affiliations
Department of Materials Science Engineering, Research Institute of Advanced Materials, Seoul National University, Seoul 151-744, Korea
Department of Materials Science Engineering, Korea University, Seoul 136-713, Korea
Electronic Materials Research Center, Korea Institute of Science and Technology, Seoul 136-791, Korea
Funding
Ministry of Science, ICT and Future Planning · Korea Institute of Science and Technology · National Research Foundation of Korea
References (33)
Show source-provided references
1. Yamazoe N. · Sens. Actuators, B · 2013 · 187 · 16210.1016/j.snb.2012.10.048 ↗
2. Hwang I. S. · Sens. Actuators, B · 136 · 22410.1016/j.snb.2008.10.042 ↗
3. http://www.usgs.gov/, accessed on 29 May 2014.
4. Liao L. · J. Phys. Chem. C · 2008 · 112 · 1078410.1021/jp802968a ↗
5. Wu Z. C. · J. Phys. Chem. C · 2008 · 112 · 1130710.1021/jp803582d ↗
6. Pan X. F. · ACS Nano · 2013 · 7 · 931810.1021/nn4040074 ↗
7. Shao S. F. · Nanoscale · 2011 · 3 · 428310.1039/c1nr10678c ↗
8. Song L. M. · Colloids Surf., A · 2010 · 360 · 110.1016/j.colsurfa.2010.01.012 ↗
9. Chen J. · Adv. Mater. · 2005 · 17 · 58210.1002/adma.200401101 ↗
10. Burleigh T. D. · J. Electrochem. Soc. · 2009 · 156 · C4510.1149/1.3021029 ↗
11. Mor G. K. · Adv. Funct. Mater. · 2005 · 15 · 129110.1002/adfm.200500096 ↗
12. Mohapatra S. K. · Chem. Mater. · 2009 · 21 · 304810.1021/cm8030208 ↗
13. Xie K. Y. · Electrochem. Commun. · 2011 · 13 · 65710.1016/j.elecom.2011.03.040 ↗
14. Wang C. J. · Sensors · 2009 · 9 · 823010.3390/s91008230 ↗
15. Righettoni M. · Anal. Chem. · 2010 · 82 · 358110.1021/ac902695n ↗
16. Feng P. · Appl. Phys. Lett. · 2005 · 87 · 21
17. Tao Y. R. · J. Nanosci. Nanotechnol. · 2013 · 13 · 565410.1166/jnn.2013.7559 ↗
18. Kim H. J. · J. Mater. Chem. · 2011 · 21 · 654910.1039/c0jm03516e ↗
19. Su D. W. · Micropor. Mesopor. Mater. · 2012 · 149 · 3610.1016/j.micromeso.2011.09.002 ↗
20. Chen H. M. · Anal. Chim. Acta · 2010 · 659 · 26610.1016/j.aca.2009.11.040 ↗
21. Fang X. L. · J. Mater. Chem. · 2009 · 19 · 615410.1039/b905034e ↗
22. Cao Y. L. · Sens. Actuators, B · 2013 · 176 · 61810.1016/j.snb.2012.10.067 ↗
23. Sun P. · RSC Adv. · 2013 · 3 · 711210.1039/c3ra23416a ↗
24. Song H. J. · J. Mater. Chem. · 2012 · 22 · 2269910.1039/c2jm34826h ↗
25. Gunawan P. · Langmuir · 2012 · 28 · 1409010.1021/la302590g ↗
26. Sun P. · Sens. Actuators, B · 2012 · 173 · 5210.1016/j.snb.2012.05.057 ↗
27. Dou Z. F. · ACS Appl. Mater. Interfaces · 2012 · 4 · 569810.1021/am3016944 ↗
28. Liu X. J. · J. Mater. Chem. · 2012 · 22 · 723210.1039/c2jm15742j ↗
29. Song H. J. · J. Mater. Chem. · 2012 · 22 · 350810.1039/c2jm13574d ↗
30. Sun P. · Sens. Actuators, B · 2011 · 156 · 36810.1016/j.snb.2011.04.050 ↗
31. Xia Y. S. · J. Hazard. Mater. · 2011 · 186 · 8410.1016/j.jhazmat.2010.10.073 ↗
32. Picasso G. · Appl. Catal., B · 2003 · 46 · 13310.1016/S0926-3373(03)00219-4 ↗
33. Li J. · Nano Lett. · 2003 · 3 · 92910.1021/nl034220x ↗