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dc.contributor.author Oosthuizen, Dina N
dc.contributor.author Motaung, David E
dc.contributor.author Swart, HC
dc.date.accessioned 2019-03-29T06:45:39Z
dc.date.available 2019-03-29T06:45:39Z
dc.date.issued 2019-08
dc.identifier.citation Oosthuizen, D.N., Motaung, D.E. and Swart, H.C. 2019. In depth study on the notable room-temperature NO2gas sensorbased on CuO nanoplatelets prepared by sonochemical method: Comparison of various bases. Sensors and Actuators B: Chemical, v. 266, pp 761-772. en_US
dc.identifier.uri https://www.sciencedirect.com/science/article/pii/S092540051830604X
dc.identifier.uri http://hdl.handle.net/10204/10876
dc.description Copyright: 2018. Elsevier. Due to copyright restrictions, the attached PDF file only contains the abstract of the full text item. For access to the full text item, kindly consult the publisher's website. en_US
dc.description.abstract The strategy for the synthesis of metal oxide nanostructured based sensors that operate at room temperature with higher sensitivity and selectivity facilitates the forecasts towards low cost and power consumption gas sensors which will be beneficial to domestic and industrial applications. As a result, herein, we report on the improved room temperature NO2 gas sensing based on CuO nanostructures grown using the sonochemical method in various aqueous solutions. A transformation of the copper nitrate solution under basic aqueous conditions into CuO nanoplatelets and flower-like nanostructures, without the assistance of any surfactants and additives was observed. Structural analyses revealed a size–dependent broadening due to the decrease in platelet size as the reaction temperature was increased. A high sensitivity of 173 ppm-1 and selectivity to NO2 gas at room-temperature has been realized when using NaOH as a base. The higher sensing properties were due to longer synthesis reaction temperature (75 °C), resulting to small crystallite size, higher Brunauer-Emmett-Teller surface area and point defects. en_US
dc.language.iso en en_US
dc.publisher Elsevier en_US
dc.relation.ispartofseries Worklist;22053
dc.subject CuO en_US
dc.subject Gas sensors en_US
dc.subject Nanoflowers en_US
dc.subject Nanoplatelets en_US
dc.subject Sonochemical en_US
dc.title In depth study on the notable room-temperature NO2gas sensorbased on CuO nanoplatelets prepared by sonochemical method: Comparison of various bases en_US
dc.type Article en_US


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