Synthesis and Characterization of Nd3+ Doped Mg-Cd Ferrite (Mg0.5Cd0.5Nd0.01Fe1.99O4) Nanoparticles Prepared in the Form of a Thick Film for Gas Sensing Applications

Authors Rakesh M. Shedam1, Priyanka P. Kashid1, Mahadev R. Shedam2, Ashok B. Gadkari3, Pradip D. Kamble2, Shridhar N. Mathad1

1Department of Engineering Physics, K.L.E. Institute of Technology, Gokul Road, Hubballi, Karnataka 580027, India

2The New College, Kolhapur, India

3Department of Physics, GKG College, Kolhapur, IndiaCPC

Issue Volume 14, Year 2022, Number 4
Dates Received 10 April 2022; revised manuscript received 11 August 2022; published online 25 August 2022
Citation Rakesh M. Shedam, Priyanka P. Kashid, et al., J. Nano- Electron. Phys. 14 No 4, 04001 (2022)
PACS Number(s) 68.37.Hk, 81.20.Ka
Keywords Nanocrystallite, Chemical synthesis (5) , SEM (107) , Selectivity (2) , Response time (3) .

The oxalate co-precipitation method was used to prepare nanocrystallite ferrites with Nd3+ added to the general formula Mg1 – xCdxFe2O4 (x  0.5). FTIR, XRD, and SEM were all used to characterize the samples. According to XRD, the structure is cubic spinel with orthoferrite (NdFeO3) as a secondary phase. The crystallite size is 36.79 nm. SEM analysis of surface morphology indicates a grain size of 0.38 m. There are two strong absorption bands observed in the FTIR spectrum in the range of 350-800 cm – 1. We were able to detect various gases such as Cl2, LPG, and ethanol using the gas sensor from room temperature to 500 C. For 100 ppm ethanol gas at 500 C, the Mg0.5Cd0.5Nd0.01Fe1.99O4 composition has the greatest response. Mg-Cd ferrite sensor samples with Nd3+ added show good response and recovery time. Material composition, test gas, and grain size determine the time to complete the test.

List of References