One-pot synthesis of cubic ZnSnO3/ZnO heterostructure composite and enhanced gas-sensing performance

被引：64
作者：
Yan, Yan [1 ,2 ]
Liu, Jingyuan [1 ,2 ]
Zhang, Hongsen [1 ,2 ]
Song, Dalei [1 ,2 ]
Li, Junqing [1 ,2 ]
Yang, Piaoping [1 ,2 ]
Zhang, Milin [1 ,4 ]
Wang, Jun [1 ,2 ,3 ]
机构：
[1] Harbin Engn Univ, Key Lab Superlight Mat & Surface Technol, Minist Educ, Harbin 150001, Heilongjiang, Peoples R China
[2] Harbin Engn Univ, Coll Mat Sci & Chem Engn, Harbin 150001, Heilongjiang, Peoples R China
[3] Harbin Engn Univ, Inst Adv Marine Mat, Harbin 150001, Heilongjiang, Peoples R China
[4] Heihe Univ, Coll Sci, Heihe 164300, Peoples R China
来源：
JOURNAL OF ALLOYS AND COMPOUNDS | 2019年 / 780卷
基金：
中国国家自然科学基金;
关键词：
Hollow cubic ZnSnO3/ZnO; Heterostructure composite; Gas-sensor; Triethylamine; ROOM-TEMPERATURE; HOLLOW; SENSOR; ZNO; NANORODS; NANOFLAKES; NANOSHEETS; CARBON; ANODE;
D O I：
10.1016/j.jallcom.2018.11.310
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this work, we have successfully prepared cubic ZnSnO3/ZnO heterostructure composite (CZS/ZO) by a one-pot hydrothermal method. This composite easily forms a hollow structure through an alkali etching process while keeping its shape unchanged. The possible growth mechanisms have been studied and the material proves to have excellent gas sensing properties. The response of hollow cubic ZnSnO3/ZnO NPs (HZS/ZO) is up to 101 in 50 ppm triethylamine (TEA) gas at a working temperature of 160 degrees C; the lower limit of detection is 1 ppm. Moreover, the materials exhibit high selectivity and good stability. The role of ZnSnO3/ZnO n-n heterojunction in enhancing gas sensitivity is discussed. (C) 2018 Elsevier B.V. All rights reserved.
引用
收藏
页码：193 / 201
页数：9
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