Investigations of Rare Earth and Transition Metal doped ZnO Nano Materials  Synthesized via Solution Combustion Method for Magnetic, Electro Chemical and Sensor Applications.

S M Devasena; S Senthil Kumar; K Gopi Krishna; Y C Rathnakaram; R P Vijaya Lakshmi

doi:10.36948/ijfmr.2026.v08i03.80575

Investigations of Rare Earth and Transition Metal doped ZnO Nano Materials Synthesized via Solution Combustion Method for Magnetic, Electro Chemical and Sensor Applications.

Author(s)	Dr. S M Devasena, Prof. Dr. S Senthil Kumar, Dr. K Gopi Krishna, Prof. Dr. Y C Rathnakaram, Prof. Dr. R P Vijaya Lakshmi
Country	India
Abstract	Pristine and Ce 2%,Pr 2%, In 2% co doped with Mn 2% with ZnO Nano Materials Synthesized via Solution Combustion Method. VSM studies shows that this doping shows the Ferromagnetic Nature to the samples. The electrochemical studies of these samples shows the Over potential values. Tofel plots are drawn , tofel slop is the key parameter that reflects how quickly the current increases with over potential and it helps infer the rate determining step of the HER .In this plot 3% In/2%Mn doped ZnO stands out showing the lowest Tafel slope of approximately 131.6 mv/dec, which implies faster electron transfer kinetics and more favorable reaction path ways. Which is a parameter for fuel cells or energy storage devices. The gas sensing capacity of the sample are tested and results shows that In is sensitive for gas sensing at low ppm values like 10ppm etc. and Ce is sensitive at high PPM values like 1500ppm of gas concentration ,Pr is tried to test using an special instrument for which the pellet preparation is failed due to its softness of the power sample. If it is tested using another for which no need of pellet preparation, then it may show the results. Any how rare earth and transition metal doped ZnO is sensitive for gas sensing at low ppm values of gas concentration. Hence these doped ZnO Nano Materials provide good materials for Energy Storage Device manufacturing and for Gas Sensing.
Keywords	gas sensing, electro chemical , tofel, responce time, overpotentials, IV plot,
Field	Physics > Nano Technology / Nuclear
Published In	Volume 8, Issue 3, May-June 2026
Published On	2026-06-06
DOI	https://doi.org/10.36948/ijfmr.2026.v08i03.80575

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Investigations of Rare Earth and Transition Metal doped ZnO Nano Materials Synthesized via Solution Combustion Method for Magnetic, Electro Chemical and Sensor Applications.

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