2D-MoO3 nanosheets for superior gas sensors

被引：173

作者：

Ji, Fangxu ^{[1
,2
,3
]}

Ren, Xianpei ^{[1
,2
,3
]}

Zheng, Xiaoyao ^{[1
,2
,3
]}

Liu, Yucheng ^{[1
,2
,3
]}

Pang, Liuqing ^{[1
,2
,3
]}

Jiang, Jiaxing ^{[1
,2
,3
]}

Liu, Shengzhong ^{[1
,2
,3
,4
]}

机构：

[1] Shaanxi Normal Univ, Natl Minist Educ, Key Lab Appl Surface & Colloid Chem, Xian 710119, Peoples R China

[2] Shaanxi Normal Univ, Shaanxi Engn Lab Adv Energy Technol, Xian 710119, Peoples R China

[3] Shaanxi Normal Univ, Sch Mat Sci & Engn, Xian 710119, Peoples R China

[4] Chinese Acad Sci, Dalian Inst Chem Phys, iChEM, Dalian Natl Lab Clean Energy, Dalian 116023, Peoples R China

来源：

NANOSCALE | 2016年 / 8卷 / 16期

关键词：

LIQUID-PHASE EXFOLIATION; SENSING PROPERTIES; MOLYBDENUM TRIOXIDE; THIN-FILMS; GRAPHENE; MOO3; DISPERSIONS; ALPHA-MOO3; MOS2;

D O I：

10.1039/c6nr00880a

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

By taking advantages of both grinding and sonication, an effective exfoliation process is developed to prepare two-dimensional (2D) molybdenum oxide (MoO3) nanosheets. The approach avoids highboiling- point solvents that would leave a residue and cause aggregation. Gas sensors fabricated using the 2D-MoO3 nanosheets provide a significantly enhanced chemical sensor performance. Compared with the sensors using bulk MoO3, the response of the 2D-MoO3 sensor increases from 7 to 33; the sensor response time is reduced from 27 to 21 seconds, and the recovery time is shortened from 26 to 10 seconds. We attribute the superior performance to the 2D-structure with a much increased surface area and reactive sites.

引用

页码：8696 / 8703

页数：8

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