Oosthuizen, Dina NMotaung, DEStrydom, AMSwart, HC2020-03-192020-03-192020-01Oosthuizen, D.N et al. 2020. Underpinning the interaction between NO2 and CuO nanoplatelets at room temperature by tailoring synthesis reaction base and time. ACS Omega, vol. 36, no. 1, pp. 287-2882470-1343https://pubs.acs.org/doi/abs/10.1021/acsomega.9b01882https://doi.org/10.1021/acsomega.9b01882http://hdl.handle.net/10204/11333Copyright 2019 The Authors. This is an open access article under the terms of the Creative Commons Attribution License, which permits use, distribution and reproduction in any medium, provided the original work is properly cited.An approach to tailor the morphology and sensing characteristics of CuO nanoplatelets for selective detection of NO2[sub] gas is of great significance and an important step toward achieving the challenge of improving air quality and in assuring the safety of mining operations. As a result, in this study, we report on the NO2[sub] room temperature gas-sensing characteristics of CuO nanoplatelets and the underlying mechanism toward the gas-sensing performance by altering the synthesis reaction base and time. High sensitivity of ~40 ppm–1[sup] to NO2[sub] gas at room temperature has been realized for gas sensors fabricated from CuO nanoplatelets, using NaOH as base for reaction times of 45 and 60 min, respectively at 75 °C. In both cases, the crystallite size, surface area, and hole concentration of the respective materials influenced the selectivity and sensitivity of the NO2[sub] gas sensors. The mechanism underpinning the superior NO2[sub] gas sensing are thoroughly discussed in terms of the crystallite size, hole concentration, and surface area as active sites for gas adsorption.enGas-SensingNanoplateletsArticleOosthuizen, D. N., Motaung, D., Strydom, A., & Swart, H. (2020). Underpinning the interaction between NO2 and CuO nanoplatelets at room temperature by tailoring synthesis reaction base and time. http://hdl.handle.net/10204/11333Oosthuizen, Dina N, DE Motaung, AM Strydom, and HC Swart "Underpinning the interaction between NO2 and CuO nanoplatelets at room temperature by tailoring synthesis reaction base and time." (2020) http://hdl.handle.net/10204/11333Oosthuizen DN, Motaung D, Strydom A, Swart H. Underpinning the interaction between NO2 and CuO nanoplatelets at room temperature by tailoring synthesis reaction base and time. 2020; http://hdl.handle.net/10204/11333.TY - Article AU - Oosthuizen, Dina N AU - Motaung, DE AU - Strydom, AM AU - Swart, HC AB - An approach to tailor the morphology and sensing characteristics of CuO nanoplatelets for selective detection of NO2[sub] gas is of great significance and an important step toward achieving the challenge of improving air quality and in assuring the safety of mining operations. As a result, in this study, we report on the NO2[sub] room temperature gas-sensing characteristics of CuO nanoplatelets and the underlying mechanism toward the gas-sensing performance by altering the synthesis reaction base and time. High sensitivity of ~40 ppm–1[sup] to NO2[sub] gas at room temperature has been realized for gas sensors fabricated from CuO nanoplatelets, using NaOH as base for reaction times of 45 and 60 min, respectively at 75 °C. In both cases, the crystallite size, surface area, and hole concentration of the respective materials influenced the selectivity and sensitivity of the NO2[sub] gas sensors. The mechanism underpinning the superior NO2[sub] gas sensing are thoroughly discussed in terms of the crystallite size, hole concentration, and surface area as active sites for gas adsorption. DA - 2020-01 DB - ResearchSpace DP - CSIR KW - Gas-Sensing KW - Nanoplatelets LK - https://researchspace.csir.co.za PY - 2020 SM - 2470-1343 T1 - Underpinning the interaction between NO2 and CuO nanoplatelets at room temperature by tailoring synthesis reaction base and time TI - Underpinning the interaction between NO2 and CuO nanoplatelets at room temperature by tailoring synthesis reaction base and time UR - http://hdl.handle.net/10204/11333 ER -