传感技术学报
傳感技術學報
전감기술학보
Chinese Journal of Sensors and Actuators
2015年
10期
1432-1437
,共6页
气敏材料%水溶性聚苯胺/Sm0.5Ba0.5Cu1-yCryO3+δ%溶胶-凝胶法%低温%氨敏性能
氣敏材料%水溶性聚苯胺/Sm0.5Ba0.5Cu1-yCryO3+δ%溶膠-凝膠法%低溫%氨敏性能
기민재료%수용성취분알/Sm0.5Ba0.5Cu1-yCryO3+δ%용효-응효법%저온%안민성능
gas-sensitive material%water-soluble Polyaniline/Sm0.5Ba0.5Cu1-yCryO3+δ%sol-gel%low temperature%sensitivity to NH3
采用化学氧化法制备了水溶性聚苯胺(PANI),用溶胶凝胶法制备了Sm0.5Ba0.5Cu1-yCryO3+δ(y=0,0.1,0.2,0.3,0.4,0.5, 0.6)(SBCC)粉体,用微粒填充法制备了PANI/SBCC复合材料.利用XRD、EDS、FT-IR、TEM多种手段对产物进行表征,研究其在较低工作温度下(60℃)对氨气的敏感性.结果表明,在同等条件下,在PANI元件、SBCC元件及PANI/SBCC元件中,PANI/Sm0.5Ba0.5Cu0.8Cr0.2O3+δ(PANI/SBC80C20)元件对NH3的气敏性能最优,对体积分数为100×10-6 NH3的灵敏度在60℃条件下达到最大值为3.79,且响应恢复时间短,还具有较好的选择性.
採用化學氧化法製備瞭水溶性聚苯胺(PANI),用溶膠凝膠法製備瞭Sm0.5Ba0.5Cu1-yCryO3+δ(y=0,0.1,0.2,0.3,0.4,0.5, 0.6)(SBCC)粉體,用微粒填充法製備瞭PANI/SBCC複閤材料.利用XRD、EDS、FT-IR、TEM多種手段對產物進行錶徵,研究其在較低工作溫度下(60℃)對氨氣的敏感性.結果錶明,在同等條件下,在PANI元件、SBCC元件及PANI/SBCC元件中,PANI/Sm0.5Ba0.5Cu0.8Cr0.2O3+δ(PANI/SBC80C20)元件對NH3的氣敏性能最優,對體積分數為100×10-6 NH3的靈敏度在60℃條件下達到最大值為3.79,且響應恢複時間短,還具有較好的選擇性.
채용화학양화법제비료수용성취분알(PANI),용용효응효법제비료Sm0.5Ba0.5Cu1-yCryO3+δ(y=0,0.1,0.2,0.3,0.4,0.5, 0.6)(SBCC)분체,용미립전충법제비료PANI/SBCC복합재료.이용XRD、EDS、FT-IR、TEM다충수단대산물진행표정,연구기재교저공작온도하(60℃)대안기적민감성.결과표명,재동등조건하,재PANI원건、SBCC원건급PANI/SBCC원건중,PANI/Sm0.5Ba0.5Cu0.8Cr0.2O3+δ(PANI/SBC80C20)원건대NH3적기민성능최우,대체적분수위100×10-6 NH3적령민도재60℃조건하체도최대치위3.79,차향응회복시간단,환구유교호적선택성.
The PANI/SBCC composites from water-soluble Polyaniline(PANI),prepared by chemical-oxide method and SmBaCu1-yCryO3+δ(y=0,0.1,0.2,0.3,0.4,0.5,0.6)(SBCC)powders,prepared by sol-gel method were analyzed through XRD,EDS,FT-IR spectra and TEM respectively. The composites were prepared by particle packing,and their sensitivities to NH3 under low temperature were studied. The results show that the sensitivities of PANI/SBCC materials to NH3 are superior to those of single PANI and SBCC under the same condition. At 60℃,the response of PANI/Sm0.5Ba0.5Cu0.8Cr0.2O3+δ(PANI/SBC80C20)reaches to 3.79 to NH3(volume fraction:100×10-6),and the re-sponse-recovery time is short.
