Next Article in Journal
Multiple Drosophila Tracking System with Heading Direction
Next Article in Special Issue
Novel Isoprene Sensor for a Flu Virus Breath Monitor
Previous Article in Journal
A Fuzzy-Based Approach for Sensing, Coding and Transmission Configuration of Visual Sensors in Smart City Applications
Previous Article in Special Issue
A Novel Wireless Wearable Volatile Organic Compound (VOC) Monitoring Device with Disposable Sensors
Open AccessArticle

Mixed-Potential Gas Sensors Using an Electrolyte Consisting of Zinc Phosphate Glass and Benzimidazole

National Institute of Advanced Industrial Science and Technology (AIST), Inorganic Functional Materials Research Institute, 2266-98, Anagahora, Shimo-Shidami, Moriyama-ku, Nagoya-shi 463-8560, Japan
*
Author to whom correspondence should be addressed.
Academic Editor: W. Rudolf Seitz
Sensors 2017, 17(1), 97; https://doi.org/10.3390/s17010097
Received: 16 November 2016 / Revised: 29 December 2016 / Accepted: 3 January 2017 / Published: 5 January 2017
(This article belongs to the Special Issue Gas Sensors for Health Care and Medical Applications)
Mixed-potential gas sensors with a proton conductor consisting of zinc metaphosphate glass and benzimidazole were fabricated for the detection of hydrogen produced by intestinal bacteria in dry and humid air. The gas sensor consisting of an alumina substrate with platinum and gold electrodes showed good response to different hydrogen concentrations from 250 parts per million (ppm) to 25,000 ppm in dry and humid air at 100–130 °C. The sensor response varied linearly with the hydrogen and carbon monoxide concentrations due to mass transport limitations. The sensor responses to hydrogen gas (e.g., −0.613 mV to 1000 ppm H2) was higher than those to carbon monoxide gas (e.g., −0.128 mV to 1000 ppm CO) at 120 °C under atmosphere with the same level of humidity as expired air. View Full-Text
Keywords: gas sensor; mixed-potential; zinc phosphate glass; hydrogen gas sensor; mixed-potential; zinc phosphate glass; hydrogen
Show Figures

Figure 1

MDPI and ACS Style

Akamatsu, T.; Itoh, T.; Shin, W. Mixed-Potential Gas Sensors Using an Electrolyte Consisting of Zinc Phosphate Glass and Benzimidazole. Sensors 2017, 17, 97.

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.

Article Access Map by Country/Region

1
Back to TopTop