Highly Enhanced Sensing Properties for ZnO Nanoparticle-Decorated Round-Edged alpha-Fe2O3 Hexahedrons
Highly Enhanced Sensing Properties for ZnO Nanoparticle-Decorated Round-Edged alpha-Fe2O3 Hexahedrons
复制标题
ZnO 纳米粒子装饰的圆边 α-Fe2O3 六面体的高度增强的传感特性
DOI：
10.1021/acsami.5b01071
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发表时间：
2015
影响因子：
9.5
通讯作者：
Lu Geyu
中科院分区：
文献类型：
--
作者：
Zhou Xin;Xiao Yan;Wang Meng;Sun Peng;Liu Fengmin;Liang Xishuang;Li Xiaowei;Lu Geyu
采用溶剂热法成功制备了ZnO/α- fe2o3复合材料，该复合材料将大量ZnO纳米粒子修饰在均匀的圆边α- fe2o3六面体表面。采用了各种技术来获得制备样品的结晶和形态表征。此外，两种传感材料的传感性能对比研究清楚地表明，ZnO/α- fe2o3复合材料的传感性能比单一α- fe2o3组分的传感性能有了很大的提高，这表明ZnO装饰的优越性正如我们所期望的那样。例如，ZnO/α- fe2o3复合材料对100 ppm丙酮的响应为~ 30，比原α- fe2o3六面体高~ 3.15倍。协同效应被认为是提高气敏性能的来源。
ZnO/α-Fe2O3composites built from plenty of ZnO nanoparticles decorated on the surfaces of uniform round-edged α-Fe2O3hexahedrons were successfully prepared via a facile solvothermal method. Various techniques were employed to obtain the crystalline and morphological characterization of the as-prepared samples. In addition, a comparative sensing performance investigation between the two kinds of sensing materials clearly demonstrated that the sensing properties of ZnO/α-Fe2O3composites were substantially enhanced compared with those of the single α-Fe2O3component, which manifest the superiority of the ZnO decoration as we expected. For instance, the response of ZnO/α-Fe2O3composites to 100 ppm acetone is ∼30, which is ∼3.15-fold higher than that of primary α-Fe2O3hexahedrons. The synergetic effect is believed to be the source of the improvement of gas-sensing properties.