材料科学
纳米复合材料
拉曼光谱
扫描电子显微镜
铁磁性
化学工程
氧气
降水
衍射
分析化学(期刊)
纳米颗粒
纳米技术
复合材料
化学
光学
有机化学
物理
工程类
量子力学
气象学
作者
Chelladurai Stella,N. Soundararajan,K. Ramachandran
出处
期刊:Advanced Materials Letters
[VBRI Sverige AB]
日期:2016-07-28
卷期号:7 (8): 652-658
被引量:13
标识
DOI:10.5185/amlett.2016.6297
摘要
Chunk shaped ZnO/Co3O4 nanocomposites for different concentrations of 90:10 (Z9C1), 70:30 (Z7C3), and 50:50 (Z5C5) were successfully synthesized by co-precipitation method. The structure, morphology, and elemental composition of the prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and energy dispersive spectroscopy (EDS), respectively which confirm the formation of ZnO/Co3O4nanocomposites. Raman analysis confirmed the presence of oxygen vacancies in the Z5C5 sample. The magnetic studies revealed that, the Z5C5 nanocomposite exhibit room temperature ferromagnetism. The gas sensing property clearly confirm the response of Z5C5 sensor which was as high as 5.6%, about 4 times higher than Z9C1 sample. The enhancement of gas sensing property is due to the collective contribution of smaller particle size, oxygen vacancies, and the formation of more p-n hetero junction in Z5C5 nanocomposite.
科研通智能强力驱动
Strongly Powered by AbleSci AI