文献类型：期刊文献

英文题名：Synthesis and characterization of AuNPs-modificated Fe2O3/ZnFe2O4 heterostructures for highly sensitive 1-butanol detection

作者：Zhao, Zhenting[1,2];Jiang, Dong[3];Xue, Yan[2];Sun, Yongjiao[2];Zhang, WenLei[2];Li, Pengwei[2];Long, Dafeng[1];Gong, Weiping[1];Hu, Jie[2]

机构：[1]Huizhou Univ, Guangdong Prov Key Lab Elect Funct Mat & Devices, Huizhou 516007, Guangdong, Peoples R China;[2]Taiyuan Univ Technol, Coll Informat & Comp, Ctr Nano Energy & Devices, Taiyuan 030024, Shanxi, Peoples R China;[3]East China Univ Sci & Technol, Ctr Anal & Test, Shanghai 200237, Peoples R China

年份：2021

卷号：56

期号：30

起止页码：16963

外文期刊名：JOURNAL OF MATERIALS SCIENCE

收录：;EI(收录号：20213110706864);WOS:【SCI-EXPANDED(收录号:WOS:000679310500002)】；

基金：This work was financially supported by the National Natural Science Foundation of China (61901186, 61904122), the Natural Science Foundation of Shanxi Province (201801D221180, 201901D111090), the Natural Science Foundation of Guangdong Province (2021A1515011401), the special innovation projects of universities in Guangdong province (2019KTSCX178), the Program for Innovative Research Team of Huizhou University (IRTHZU), Open Project Program of Guangdong Provincial Key Laboratory of Electronic Functional Materials and Devices, Huizhou University (No. EFMD2020002Z).

语种：英文

外文关键词：High resolution transmission electron microscopy - Scanning electron microscopy - Stability - Gas detectors - Hematite - X ray photoelectron spectroscopy - Chemical detection

摘要：In this work, the Fe2O3/ZnFe2O4 heterostructures were synthesized by solvothermal and calcination decomposition methods, and then used for 1-butanol detection. The detail morphology and chemical state of Fe2O3/ZnFe2O4 nanostructures were measured using X-ray diffraction, scanning electron microscopy, transmission electron microscopy and X-ray photoelectron spectroscopy techniques. To improve the gas sensing performances, different contents of Au nanoparticles (AuNPs) were modified on the Fe2O3/ZnFe2O4 heterostructures. Experimental results demonstrate that the 2 mol% Au modified Fe2O3/ZnFe2O4 (A(2)FZ) sensor shows the highest response of 27.6 toward 200 ppm 1-butanol. Moreover, A(2)FZ device also exhibits good response/recovery times (6 s/16 s toward 2 ppm 1-butanol), low limit of detection (LOD = 50 ppb), and excellent stability properties. Furthermore, the improved gas sensing mechanism is also discussed for AuNPs-modificated Fe2O3/ZnFe2O4 heterostructures, and it is promising to be used as a potential gas sensing materials for 1-butanol detection.