Hierarchical Fe2O3/Bi2WO6 nanoplates with enhanced xylene sensing performance

被引：22
作者：
Lin, Zexin [1 ]
Gong, Jingming [1 ]
Fu, Ping [2 ]
机构：
[1] Cent China Normal Univ, Coll Chem, Minist Educ, Key Lab Pesticide & Chem Biol, Wuhan 430079, Peoples R China
[2] Wuhan Inst Technol, Hubei Key Lab Plasma Chem & Adv Mat, Wuhan 430073, Peoples R China
来源：
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS | 2017年 / 28卷 / 05期
基金：
美国国家科学基金会;
关键词：
GAS SENSOR; DOPED ZNO; ETHANOL; ACETONE; WO3; NANOPARTICLES; TEMPERATURE; NANOSHEETS; PROPERTY; TOLUENE;
D O I：
10.1007/s10854-016-6071-3
中图分类号：
TM [电工技术]; TN [电子技术、通信技术];
学科分类号：
0808 ; 0809 ;
摘要：
Erythrocyte-like hierarchical alpha-Fe2O3/Bi2WO6 nanocomposites were synthesized by a simple and convenient hydrothermal method. The composites were assembled from alpha-Fe2O3/Bi2WO6 nanoplates. The structures of alpha-Fe2O3/Bi2WO6 nanocomposites were characterized by XRD, TEM, BET and gas sensing properties toward xylene were investigated in detailed. The sensors based on self-assembled alpha-Fe2O3/Bi2WO6 nanoplates show much enhanced sensing performances to xylene than that of pure Bi2WO6. The sensing performance using 10 wt% alpha-Fe2O3/Bi2WO6 reaches the highest response (S = 13.5) for the detection of 100 ppm xylene. Significant enhancement of the response and selectivity to xylene can be attributed to the formation of heterostructure and the synergistic catalytic activity from alpha-Fe2O3 and surface decorated WO4 (2-).
引用
收藏
页码：4424 / 4430
页数：7
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