Chemical Engineering Department, Case Western Reserve University, 10900 Euclid Ave., Cleveland OH 44106, USA; E-Mail:
Sensors (Basel). 2009;9(9):7203-16. doi: 10.3390/s90907203. Epub 2009 Sep 9.
A three-electrode based CO(2) sensor was fabricated using thick-film technology. The performance of this sensor was further enhanced by incorporating platinum nanoparticles onto the working electrode surface. An eight-fold increase in the signal output was obtained from the electrode with the platinum nanoparticles. The sensing output was linearly related to the CO(2) presented. Stability measurements demonstrated that the decline of the active surface area and the sensitivity of the sensor were 8% and 13%, respectively, over a two week period of time. The sensor response appeared to be a structural dependence of the crystallographic orientation of platinum electrode.
采用厚膜技术制备了基于三电极的 CO(2)传感器。通过在工作电极表面引入铂纳米粒子进一步提高了该传感器的性能。与不含铂纳米粒子的电极相比，引入铂纳米粒子的电极的信号输出提高了 8 倍。传感输出与存在的 CO(2)呈线性关系。稳定性测量表明，在两周的时间内，传感器的活性表面积和灵敏度分别下降了 8%和 13%。传感器的响应似乎与铂电极的晶体取向的结构依赖性有关。
