Design and Fabrication of Nanostructure TiO2 Doped NiO as A Gas Sensor for NO2 Detection. Iraqi Journal of Science [Internet]. 2021 Dec. 23 [cited 2024 Nov. 21];62(11):4385-96. Available from: https://ijs.uobaghdad.edu.iq/index.php/eijs/article/view/3955