使用由磷酸锌玻璃和苯并咪唑组成的电解质的混合电位气体传感器。

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

作者信息

Akamatsu Takafumi, Itoh Toshio, Shin Woosuck

机构信息

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.

出版信息

Sensors (Basel). 2017 Jan 5;17(1):97. doi: 10.3390/s17010097.

DOI:10.3390/s17010097

PMID:28067788

原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC5298670/

Abstract

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.

摘要

制备了一种混合电位气体传感器，其质子导体由偏磷酸锌玻璃和苯并咪唑组成，用于检测干燥和潮湿空气中肠道细菌产生的氢气。由带有铂和金电极的氧化铝基板组成的气体传感器，在100-130°C的干燥和潮湿空气中，对250 ppm至25,000 ppm的不同氢气浓度表现出良好的响应。由于传质限制，传感器响应随氢气和一氧化碳浓度呈线性变化。在与呼出空气湿度相同的大气条件下，120°C时传感器对氢气的响应（例如，对1000 ppm H₂为-0.613 mV）高于对一氧化碳气体的响应（例如，对1000 ppm CO为-0.128 mV）。