摘要
采用柠檬酸盐热解法制备V掺杂纳米ZnFe2O4,研究了V掺杂对ZnFe2O4的物相结构、厚膜电阻特性和对苯及其衍生物蒸汽气敏特性的影响。结果发现:V掺杂ZnFe2O4的物相单一;施主掺杂剂V大大降低了厚膜元件的电阻,并随掺杂量的增加,电阻逐渐下降;V掺杂还显著提高其对苯及其衍生物的高温敏感性。
Raw powder of ZnFe2O4 and V-doped ZnFe2O4 were obtained by the citrate pyrolysis, and the effect of V doping on phase constituents, resistance-temperature behavior and gas-sensing properties to benzene and its derivatives were studied. The results demonstrate that as the increase of V doping amount, raw powder is the spinel structure, the resistance of ZnFe2O4 sensor decrease, and the sensitivity to benzene and its derivatives at higher operating temperature increase.
出处
《稀有金属材料与工程》
SCIE
EI
CAS
CSCD
北大核心
2006年第4期617-620,共4页
Rare Metal Materials and Engineering
基金
国家自然科学基金项目(50471061)
华中科技大学科技创新基金项目(2004039)