Metal Oxide Based Heterojunctions for Gas Sensors: A Review.
Metal Oxide Based Heterojunctions for Gas Sensors: A Review.
复制标题
用于气体传感器的金属氧化物基异质结：综述
DOI：
10.3390/nano11041026
复制
发表时间：
2021-04-17
期刊：
影响因子：
--
通讯作者：
Gu H
中科院分区：
文献类型：
--
作者：
Yang S;Lei G;Xu H;Lan Z;Wang Z;Gu H
异质结的构建已被广泛应用于提高纳米结构金属氧化物复合材料的气敏性能。本文综述了基于纳米结构金属氧化物异质结的传感器的组装方法和气敏行为的最新进展。各种方法，包括水热法，静电纺丝和化学气相沉积，已成功地用于在传感材料中建立金属氧化物异质结。与构建的纳米结构异质结组成的传感器被发现显示出增强的气体传感性能，与纯金属氧化物相比，具有更高的传感器响应和更短的响应时间，以目标还原或氧化气体。此外，还讨论了金属氧化物基异质结对还原性或氧化性气体的增强气敏机理，主要强调了积聚层上的势垒的重要作用。
The construction of heterojunctions has been widely applied to improve the gas sensing performance of composites composed of nanostructured metal oxides. This review summarises the recent progress on assembly methods and gas sensing behaviours of sensors based on nanostructured metal oxide heterojunctions. Various methods, including the hydrothermal method, electrospinning and chemical vapour deposition, have been successfully employed to establish metal oxide heterojunctions in the sensing materials. The sensors composed with the built nanostructured heterojunctions were found to show enhanced gas sensing performance with higher sensor responses and shorter response times to the targeted reducing or oxidising gases compare with those of the pure metal oxides. Moreover, the enhanced gas sensing mechanisms of the metal oxide-based heterojunctions to the reducing or oxidising gases are also discussed, with the main emphasis on the important role of the potential barrier on the accumulation layer.
登录
查看更多内容
影响因子：
5.4
作者：
Chu Manh Hung;Do Quang Dat;Nguyen Duc Hoa
通讯作者：
Nguyen Duc Hoa
影响因子：
11.9
作者：
Giebelhaus, Irina;Varechkina, Elena;Mathur, Sanjay
通讯作者：
Mathur, Sanjay
影响因子：
8.4
作者：
Galatsis, K;Li, YX;Kalantar-zadeh, K
通讯作者：
Kalantar-zadeh, K
影响因子：
4
作者：
Feng, P;Wan, Q;Wang, TH
通讯作者：
Wang, TH
影响因子：
8.4
作者：
Chowdhuri, A;Gupta, V;Sreenivas, K
通讯作者：
Sreenivas, K