P2NG.27 - Room-Temperature NH3 Gas Sensor Based on CuO Nanoplatelets Prepared by Sonochemical Method
- 17th International Meeting on Chemical Sensors - IMCS 2018
2018-07-15 - 2018-07-19
- P-2 - Nanomaterials for Gas Sensing
- D. Oosthuizen, D. Motaung - DST/CSIR National Centre for Nano-structured Materials, Council for Scientific Industrial Research, Pretoria (South Africa), H. Swart - Department of Physics, University of the Free State, Bloemfontein (South Africa)
- 895 - 896
To enhance the gas-sensing characteristics of semiconductor metal oxides, meticulous control and manipulation of point defects on gas sensing properties is required. Therefore, to elaborate the influence of metal cation defects on the sensing performance, CuO nanoplatelets with various relative concentrations of oxygen vacancies were prepared at various synthesis temperatures. CuO nanostructures prepared at higher synthesis temperature revealed higher selectivity and sensitivity towards NH3 due the institution of large number of reactive sites.