Metal Oxide Based Heterojunctions for Gas Sensors: A Review.

ABSTRACT: 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 se

SUBMITTER: Yang S 

PROVIDER: S-EPMC8073732 | biostudies-literature | 2021 Apr

REPOSITORIES: biostudies-literature