Alkali (Na, K) doped SnO2: An investigation on the role of microstructure on electricity generation of oxide based ceramic hydroelectric cells

• Published in: Inorganic chemistry communications 2022-12, Vol.146, p.110115, Article 110115
• Main Authors: Kumar, Parveen, Kumar, Sumit, Arti, Singh, Adarsh, Singh, Neelam, Verma, Vivek
• Format: Article
• Language: English
• Subjects: Alkali doped SnO2; Dissociation; Green Energy; Hydroelectric Cell; Mesoporosity
• ISSN: 1387-7003; 1879-0259
• DOI: 10.1016/j.inoche.2022.110115

Hydroelectric cell of SnO2 and its working and structural properties. [Display omitted] •Pure and Na, K doped SnO2 samples were synthesized by solid state sintering method.•Rietveld refinement was performed to evaluate the structural parameters which confirm Na and K doping in SnO2.•Grain size dependency on the ionic radii of the dopant alkali (Na, K) atom has been assessed from FESEM analysis.•Mesoporosity of the samples was confirmed by BET analysis.•Maximum output power of 61.5 mW is delivered by 5 Mol% K doped SnO2 hydroelectric cell.•HECs can be alternative to fuel cell and solar cell to produce green energy applications in future. Generation of green electricity using porous nanostructure is a novel idea towards sustainable unconventional source of energy. Inexpensive, portable, eco-friendly, and biodegradable Alkali (Na, K) doped tin oxide nano porous structured hydroelectric cells were prepared by solid-state technique. X-Ray diffraction and Fourier transform infrared spectroscopy analysis have been performed to confirm the phase formation of the samples. Field emission scanning electron microscopy was used to investigate surface morphology of all the samples. Mesoporosity of the samples was confirmed by Barrett‐Joyner‐Halenda technique. Two-inch diameter circular pellets were prepared to investigate hydroelectric properties and it was found that maximum output power of 61.5 mW delivered by 5 Mol% K doped SnO2 HEC. The observed electricity generation in doped SnO2 samples is more sustainable as compared to pure SnO2 HEC. Water molecules dissociation and ionic conduction of dissociated ions were further investigated by dielectric, dc conductivity measurements for all the samples in dry and wet states. Observed results show that Alkali element doped tin oxide nano porous structured hydroelectric cells may use as nonconvention source of energy.