Hydrothermal synthesis of cubic-rhombohedral-In2O3 microspheres with superior acetone sensing performance
Hydrothermal synthesis of cubic-rhombohedral-In2O3 microspheres with superior acetone sensing performance
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水热合成具有优异丙酮传感性能的立方菱面体In2O3微球
DOI：
10.1016/j.apsusc.2022.156045
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发表时间：
2022-12
影响因子：
6.7
通讯作者：
Zhongquan Nie
中科院分区：
文献类型：
--
作者：
Ensi Cao;Linjie Wu;Yongjia Zhang;Li Sun;Zhichao Yu;Zhongquan Nie
高效可靠的丙酮气体传感器对人类的健康和安全具有重要意义。通过形貌控制和异质结构工程可以进一步提高In2O材料的丙酮传感性能。本论文通过设置水热温度分别为120℃、160℃和200℃，制备了纯立方In_2O_3纳米颗粒的粗大微球、立方-三方In_2O_3纳米颗粒的凹凸状微球以及立方方-三方In_2O_3纳米颗粒和纳米颗粒的多孔团聚体。在最低的最佳工作温度190℃下，基于立方斜方In_2O_3微球的传感器具有最高的气体响应值16.9~100ppm丙酮，响应/恢复时间比S短4.7/6.0，对N，N-二甲基甲酰胺、乙醇、乙二醇和甲醇具有最高的选择性。立方-菱面体-In_2O_3微球优异的丙酮传感性能归因于其最大的BET比表面积(45.5×m~2/g)、最大的表面In+(62.39%)和OV(28.19%)的相对含量，以及立方体-In2O_3和菱面体-In_2O_3纳米晶之间的有效异质结，这些因素共同加强了丙酮分子对载流子浓度和微球内电导的调节。
Efficient and reliable acetone gas sensors are of great significance to human health and safety. The acetone sensing properties of In2O3materials can be further improved by morphology control and heterostructure engineering. Herein, rough microspheres of pure cubic-In2O3nanoparticles, bumpy microspheres of cubic-rhombohedral-In2O3nanoparticles, and porous aggregates of cubic-rhombohedral-In2O3nanocubes and nanoparticles were prepared by setting the hydrothermal temperatures as 120℃, 160℃, and 200℃, respectively. At the lowest optimal working temperature of 190℃, the sensor based on the cubic-rhombohedral-In2O3microspheres exhibited the highest gas response value of 16.9 to 100 ppm acetone, a shorter response/recovery time of 4.7/6.0 s, and the highest selectivity against N,N-dimethylformamide (DMF), ethanol, ethylene glycol (EG), and methanol. The superior acetone sensing performance of the cubic-rhombohedral-In2O3microspheres is attributed to its maximum BET specific surface area (45.5 m2/g), largest relative contents of surface In+(62.39 %) and OV(28.19 %), and efficient heterojunction between cubic-In2O3and rhombohedral-In2O3nanocrystals, which in combination enhance the regulation of acetone molecules on the carrier concentration and conduction within the microspheres.
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影响因子：
3.9
作者：
Gu Xuehong;Yang Gang;Xing Weihong;Xu Nanping
通讯作者：
Xu Nanping
影响因子：
9.5
作者：
Kim, Jun-Sik;Na, Chan Woong;Lee, Jong-Heun
通讯作者：
Lee, Jong-Heun
影响因子：
5.7
作者：
Wenhao Jiang;Lingling Meng;Sufang Zhang;X. Chuai;P. Sun;Fangmeng Liu;Xu Yan;Yuan Gao;
通讯作者：
Wenhao Jiang;Lingling Meng;Sufang Zhang;X. Chuai;P. Sun;Fangmeng Liu;Xu Yan;Yuan Gao;
DOI：
10.1016/j.snb.2019.03.139
发表时间：
2019-07
期刊：
Sensors and Actuators B: Chemical
影响因子：
--
作者：
Xiaojing Liu;Kunrong Zhao;Xiaoli Sun;Xinping Duan;Chong Zhang;Xijin Xu
通讯作者：
Xiaojing Liu;Kunrong Zhao;Xiaoli Sun;Xinping Duan;Chong Zhang;Xijin Xu
影响因子：
56.9
作者：
Penn, RL;Banfield, JF
通讯作者：
Banfield, JF