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教授 博士生导师
招生学科专业:
化学 -- 【招收硕士研究生】 -- 材料科学与技术学院
材料科学与工程 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
机械 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
材料与化工 -- 【招收博士、硕士研究生】 -- 材料科学与技术学院
主要任职:面向苛刻环境的材料制备与防护技术工业和信息化部重点实验室主任
其他任职:江苏省金属学会副理事长,江苏省热处理及表面改性工程技术研究中心副主任,江苏省机械工程学会材料工程专业委员会副理事长,江苏省复合材料学会常务理事
毕业院校:南京航空航天大学
学历:南京航空航天大学
学位:工学博士学位
所在单位:材料科学与技术学院
办公地点:江宁校区东区D10-材料楼A511
联系方式:13951818597
电子邮箱:
Facile one-step synthesis of TiO2 microrods surface modified with Cr2O3 nanoparticles for acetone sensor applications
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所属单位:材料科学与技术学院
发表刊物:JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
关键字:GAS-SENSING PROPERTIES NANORODS PERFORMANCE NANOFIBERS DIAGNOSIS
摘要:The paper demonstrated cost-effective one-step hydrothermal process to synthesize TiO2 microrods modified with Cr2O3 nanoparticles. The crystal structure, microstructure and chemical composition of the obtained materials were characterized by XRD, SEM, TEM and EDS analysis. Subsequently, for gas sensor tests the sensors were fabricated onto a ceramic tube having a designed pair of Au electrodes with four Pt wires. The results indicate that the sensors based on the optimal content of Cr2O3 nanoparticles modified TiO2 microrods possess excellent gas-sensing performance to acetone. Specifically, the sensor based on optimal 3% Cr2O3 modified TiO2 microrods exhibited high response (15), fast response/recovery time (5/28 s), outstanding selectivity (against 100 ppm ethanol, methanol and formaldehyde) and good stability (1-40 days) towards 100 ppm acetone at 300 A degrees C. Relying on the analysis, we infer that performance can be controlled by varying the Cr2O3 contents. A plausible sensing mechanism is also discussed to explain the reasons for the enhanced acetone sensing with Cr2O3-TiO2 heterostructures.
ISSN号:0957-4522
是否译文:否
发表时间:2018-09-01
合写作者:Sun, Linchao,Haidry, Azhar Ali,李忠,Fatima, Qawareer,Xie, Lijuan
通讯作者:姚正军,Haidry, Azhar Ali,姚正军