Study on preparation and gas sensing property of water-soluble polyaniline/SmBaCuMO5+δ（M=Fe, Co, Ni） for NH3
来源期刊：JOURNAL OF RARE EARTHS2014年第1期
论文作者：郝红霞 刘瑞泉
文章页码：23 - 28
摘 要：Water-soluble polyaniline（PANI）, prepared by chemical-oxide and SmBaCuMO5+δ（M=Fe, Co, Ni）（SBCM） powders, prepared by sol-gel method were analyzed through Fourier transform infrared spectroscopy（FT-IR） spectra, X-ray diffraction（XRD）, transmission electron microscopy（TEM） and energy dispersive spectroscopy（EDS） respectively, so as to investigate the gas sensitivities of PANI/SmBaCuFeO5+δ（SBCF） and its sensitivity to NH3 under room temperature. The results showed that all of SBCM powders were of double-perovskite structure and PANI was successfully obtained. Under the same condition, the gas sensor based on PANI/SmBaCuFeO5+δ（SBCF） material exhibited higher resistance sensitivity, better selectivity and shorter response-recovery time than others. The resistance sensitivities to NH3 increased with the increasing of atom radius of M in PANI/SBCM.
郝红霞，刘瑞泉
College of Chemistry and Chemical Engineering, Xinjiang University
摘 要：Water-soluble polyaniline（PANI）, prepared by chemical-oxide and SmBaCuMO5+δ（M=Fe, Co, Ni）（SBCM） powders, prepared by sol-gel method were analyzed through Fourier transform infrared spectroscopy（FT-IR） spectra, X-ray diffraction（XRD）, transmission electron microscopy（TEM） and energy dispersive spectroscopy（EDS） respectively, so as to investigate the gas sensitivities of PANI/SmBaCuFeO5+δ（SBCF） and its sensitivity to NH3 under room temperature. The results showed that all of SBCM powders were of double-perovskite structure and PANI was successfully obtained. Under the same condition, the gas sensor based on PANI/SmBaCuFeO5+δ（SBCF） material exhibited higher resistance sensitivity, better selectivity and shorter response-recovery time than others. The resistance sensitivities to NH3 increased with the increasing of atom radius of M in PANI/SBCM.
关键词：
