DataVXACS Applied Nano MaterialsPaper
journal article·2023-10-27

Boosting Ethylene Glycol Sensing Performance with Dendritic Hierarchical CuO/Co3O4 Heterojunction Nanowire

Chen Su, Mingyu Li, Yongfeng Zhang, Tianqing Liu, Cong Ren, Peipei Li, Xiaoqiang Yin, Lu Zhang, Min Zhang, Weiwei Wu

ACS Applied Nano Materials· Volume 6· Issue 20
Publisher page
Source abstract

Abstract

Heterostructures comprising metal oxide semiconductors (MOSs) have proven to be effective techniques in the development of high-performance gas sensors. In this study, we developed a feasible hydrothermal technique for the synthesis of a hierarchical dendritic CuO/Co 3 O 4 nanowire heterostructure, which exhibits a strong affinity for ethylene glycol (EG) adsorption. The resulting gas sensor, based on a hierarchical CuO/Co 3 O 4 heterostructure, has an exceptionally high response (6.3) to 100 ppm EG at 130 °C. The enhanced sensing performance toward EG can be attributed to the formation of a unique CuO/Co 3 O 4 core–shell heterojunction structure. The mechanism behind this enhanced performance is explained by the heterojunction-depletion model, which takes into account precise band alignments. This study serves as inspiration for the design of various p–p heterojunctions in the development of high-performance gas sensors. A feasible hydrothermal technique was developed for obtaining a hierarchical dendritic CuO/Co 3 O 4 nanowire heterostructure with high EG gas sensing performance.
Source: openalex_inverted_index · Quality: baseline

Research context

NanomaterialsElectronic materials

OpenAlex topics: Gas Sensing Nanomaterials and Sensors · ZnO doping and properties · Advanced Chemical Sensor Technologies

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Interdisciplinary Research Center of Smart Sensors, Shaanxi Key Laboratory of High-Orbits-Electron Materials and Protection Technology for Aerospace, School of Advanced Materials and Nanotechnology, Xidian University, Shaanxi 710126, China

State Key Laboratory of Electromechanical Integrated Manufacturing of High-Performance Electronic Equipment, Xidian University, Xi'an 710126, China

Shenzhen BYD Lithium Battery Company Limited, Shenzhen 518116, China

School of Chemistry and Molecular Engineering, Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration, East China Normal University, Shanghai 200241, China

Funding

China Association for Science and Technology · China Postdoctoral Science Foundation · Shanghai Key Laboratory for Urban Ecological Processes and Eco-Restoration · National Natural Science Foundation of China

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