Next Article in Journal
Functionalization of Magnetic Chitosan Particles for the Sorption of U(VI), Cu(II) and Zn(II)—Hydrazide Derivative of Glycine-Grafted Chitosan
Next Article in Special Issue
Nanoscaled Mechanical Properties of Cement Composites Reinforced with Carbon Nanofibers
Previous Article in Journal
Preferred Orientation Contribution to the Anisotropic Normal State Resistivity in Superconducting Melt-Cast Processed Bi2Sr2CaCu2O8+δ
Previous Article in Special Issue
Direct Growth of CuO Nanorods on Graphitic Carbon Nitride with Synergistic Effect on Thermal Decomposition of Ammonium Perchlorate
Article Menu
Issue 5 (May) cover image

Export Article

Open AccessArticle
Materials 2017, 10(5), 535; doi:10.3390/ma10050535

A Fast Humidity Sensor Based on Li+-Doped SnO2 One-Dimensional Porous Nanofibers

1
School of Advanced Materials, Peking University Shenzhen Graduate School, Shenzhen 518055, China
2
Institute of Chemical Materials, China Academy of Engineering Physics, Mianyang 621900, China
3
Institute for Frontier Materials, Deakin University, Geelong, Victoria 3216, Australia
4
Changchun Institute of Applied Chemistry, Chinese Academy of Sciences, 5625 Renmin Street, Changchun 130022, China
5
Alan G. MacDiarmid Institute, Jilin University, Changchun 130012, China
6
College of Science, China University of Petroleum, Qingdao 266580, China
*
Author to whom correspondence should be addressed.
Academic Editor: Homayoun Hadavinia
Received: 23 March 2017 / Revised: 7 May 2017 / Accepted: 11 May 2017 / Published: 16 May 2017
(This article belongs to the Special Issue Improving Performance of Nanocomposite Materials)
View Full-Text   |   Download PDF [8223 KB, uploaded 16 May 2017]   |  

Abstract

One-dimensional SnO2- and Li+-doped SnO2 porous nanofibers were easily fabricated via electrospinning and a subsequent calcination procedure for ultrafast humidity sensing. Different Li dopant concentrations were introduced to investigate the dopant’s role in sensing performance. The response properties were studied under different relative humidity levels by both statistic and dynamic tests. The best response was obtained with respect to the optimal doping of Li+ into SnO2 porous nanofibers with a maximum 15 times higher response than that of pristine SnO2 porous nanofibers, at a relative humidity level of 85%. Most importantly, the ultrafast response and recovery time within 1 s was also obtained with the 1.0 wt % doping of Li+ into SnO2 porous nanofibers at 5 V and at room temperature, benefiting from the co-contributions of Li-doping and the one-dimensional porous structure. This work provides an effective method of developing ultrafast sensors for practical applications—especially fast breathing sensors. View Full-Text
Keywords: humidity sensor; electrospun porous nanofibers; lithium doping; response-recovery behavior humidity sensor; electrospun porous nanofibers; lithium doping; response-recovery behavior
Figures

Figure 1

This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

Scifeed alert for new publications

Never miss any articles matching your research from any publisher
  • Get alerts for new papers matching your research
  • Find out the new papers from selected authors
  • Updated daily for 49'000+ journals and 6000+ publishers
  • Define your Scifeed now

SciFeed Share & Cite This Article

MDPI and ACS Style

Yin, M.; Yang, F.; Wang, Z.; Zhu, M.; Liu, M.; Xu, X.; Li, Z. A Fast Humidity Sensor Based on Li+-Doped SnO2 One-Dimensional Porous Nanofibers. Materials 2017, 10, 535.

Show more citation formats Show less citations formats

Note that from the first issue of 2016, MDPI journals use article numbers instead of page numbers. See further details here.

Related Articles

Article Metrics

Article Access Statistics

1

Comments

[Return to top]
Materials EISSN 1996-1944 Published by MDPI AG, Basel, Switzerland RSS E-Mail Table of Contents Alert
Back to Top