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首页> 外文期刊>Sensors and Actuators >A classification and ranking system on the H_2 gas sensing capabilities of nanomaterials based on proposed coefficients of sensor performance and sensor efficiency equations
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A classification and ranking system on the H_2 gas sensing capabilities of nanomaterials based on proposed coefficients of sensor performance and sensor efficiency equations

机译：基于提议的传感器性能系数和传感器效率方程的纳米材料H_2气敏能力分类和排名系统

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摘要

A coefficient of performance is defined based on the traditional definitions of response, S, of a chemoresis-tive sensing material to a specific gas from resistance-time data. The new definition not only considers the S_(response) and S_(recovery) but also the temperature, T, and the relative humidity, H, at which the sensor operates and the response time, τ_(res), and recovery time, τ_(rec). Resistance-time data at various temperatures in a H_2 atmosphere for six samples of different materials, including WO_3 nanoparticles, SnO_2 nanoparticles, SnO_2 nanoparticles mixed with carbon nanotubes, TiO_2 nanorods, TiO_2 nanotubes and VO_2 nanobelts, are presented in this report. The VO_2 nanobelts were the best sensing materials when these materials were ranked according to the temperatures at which they operate; however, the SnO_2 nanoparticles are the superior sensing materials when they are ranked by the defined coefficient of performance.
机译：基于电阻时间数据，化学感应材料对特定气体的响应S的传统定义定义了性能系数。新定义不仅考虑了S_（响应）和S_（恢复），还考虑了温度T和传感器工作的相对湿度H以及响应时间τ_（res）和恢复时间τ_ （rec）。本报告介绍了在H_2气氛中，六种不同材料在不同温度下的电阻时间数据，包括WO_3纳米颗粒，SnO_2纳米颗粒，与碳纳米管混合的SnO_2纳米颗粒，TiO_2纳米棒，TiO_2纳米管和VO_2纳米带。当VO_2纳米带根据其工作温度进行排序时，它们是最好的传感材料。但是，当按定义的性能系数对SnO_2纳米颗粒进行排序时，它们是出色的传感材料。

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  • 来源
    《Sensors and Actuators》 |2013年第31期|170-178|共9页
  • 作者

    Bonex W. Mwakikunga; Sarah Motshekga; Lucky Sikhwivhilu; Mathew Moodley; Manfred Scriba; Gerald Malgas; A. Simo; B. Sone; M. Maaza; Suprakas Sinha Ray;

  • 作者单位

    DST/CSIR National Centre for Nano-Structured Materials, Pretoria 0001, South Africa,Department of Physics, University of Malawi - The Polytechnic, Blantyre 0003, Malawi;

    DST/CSIR National Centre for Nano-Structured Materials, Pretoria 0001, South Africa;

    DST/CSIR National Centre for Nano-Structured Materials, Pretoria 0001, South Africa,DST/Mintek Nanotechnology Innovation Centre, Advanced Materials Division, Mintek, Johannesburg 2125, South Africa;

    DST/CSIR National Centre for Nano-Structured Materials, Pretoria 0001, South Africa;

    DST/CSIR National Centre for Nano-Structured Materials, Pretoria 0001, South Africa;

    DST/CSIR National Centre for Nano-Structured Materials, Pretoria 0001, South Africa;

    Department of Physics, University of Malawi - The Polytechnic, Blantyre 0003, Malawi;

    Department of Physics, University of Malawi - The Polytechnic, Blantyre 0003, Malawi;

    Department of Physics, University of Malawi - The Polytechnic, Blantyre 0003, Malawi,College of Graduate Studies, University of South Africa, Pretoria 001, South Africa;

    DST/CSIR National Centre for Nano-Structured Materials, Pretoria 0001, South Africa,Department of Chemistry, King Abdulaziz University, Jeddah 21589, Kingdom of Saudi Arabia;

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Hydrogen gas sensing; Nanomaterials; Sensors performance and efficiency; Classification and ranking;

    机译：氢气感应;纳米材料传感器性能和效率;分类和排名;

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