Co-doped ZnO nanostructures for liquefied petroleum gas sensing at room temperature

Nanostructured ZnO and 5% Co-doped ZnO were successfully prepared via sol?gel technique. The synthesized materials were scrutinized utilizing different characterization techniques viz. X-ray diffraction (XRD), Fourier transform infrared (FTIR), Scanning Electron Microscopy (SEM) and Elemental-Dispersive X-ray Analysis (EDX) to investigate their structural, optical, topographical and elemental properties, respectively. The average crystallite size of ZnO and 5% Co-doped ZnO was estimated by Debye?Scherer formula and found to be 27 nm and 20 nm, respectively. The SEM images of ZnO and 5% Co-doped ZnO suggested the porous nature of both the materials bearing spherical and rounded sort of morphology. The synthesized materials were also tested for Liquefied Petroleum Gas (LPG) sensing application and various significant sensing parameters such as response time, recovery time, sensitivity and reproducibility were calculated. LPG sensing results indicated that 5% Co-doped ZnO bears extremely low response and recovery times along with high sensitivity and reproducibility.Please confirm if the author names are presented accurately and in the correct sequence. Author 1 Given name: [Prabhat Kumar] Last name [Singh], Author 2 Given name: [Saurabh Kumar] Last name [Singh] Also, kindly confirm the details in the metadata are correct.Yes, it is correct.

Automated summary

Nanostructured ZnO and 5% Co-doped ZnO were successfully prepared using a sol-gel technique. The synthesized materials were characterized using different techniques, such as X-ray diffraction (XRD), Fourier transform infrared (FTIR), Scanning Electron Microscopy (SEM), and Elemental-Dispersive X-ray Analysis (EDX), to study their structural, optical, topographical, and elemental properties. The results showed that the average crystallite sizes of ZnO and 5% Co-doped ZnO were 27 nm and 20 nm, respectively. SEM images revealed the porous nature of both materials with spherical and rounded morphology. The synthesized materials were also tested for their LPG sensing application, and it was found that 5% Co-doped ZnO exhibited extremely low response and recovery times, high sensitivity, and reproducibility.