Chemoresistive SO2 Gas Sensor With Improved Sensing Performances By Modification Of Copper Hexacyanoferrate To PANI/SnO2

18 Nov
Posted on Author

Authors: MyongHyok Kim, JongSung Pak, KwangMyong Choe

Abstract: To improve the sensing performances of chemoresistive SO2 gas sensor, we prepared PANI/SnO2/CuHCF electrode by the in-situ synthesis method. The prepared PANI/SnO2/CuHCF electrode exhibited high linearity for SO2 in the range of 0-100 ppm, response time of 20 s, recovery time of 40 s, and good reproducibility. The comparison of the sensing performances of PANI/SnO2/CuHCF and PANI/SnO2 electrodes confirmed that PANI/SnO2/CuHCF performed better than PANI/SnO2 in terms of the reproducibility, linearity and selectivity.

DOI: http://doi.org/10.5281/zenodo.17637526