Porous SnO 2 ceramic-based hydroelectric cells for green power generation
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Porous SnO2 ceramic-based hydroelectric cells for green power generation Parveen Kumar1,2, Shruti Vashishth1, Isha Sharma1, and Vivek Verma1,* 1 2
Department of Physics, Hindu College, University of Delhi, Delhi, India Department of Physics and Astrophysics, University of Delhi, Delhi, India
Received: 23 June 2020
ABSTRACT
Accepted: 11 November 2020
Recently, it has been observed that few drops of water on the surface of oxide materials can generate electricity which is eco-friendly and cost effective. This hydroelectric cell (HEC) may serve as an unconventional source of electrical energy. HEC production cast is very low. Porous SnO2 samples for hydroelectric cell have been prepared by solid-state sintering method. Phase formation and structural analysis of the sample was confirmed by X-ray diffraction pattern using Rietveld analysis. The surface morphology of the sample was determined using field emission scanning electron microscopy. Average grain size of porous sample was depicted 65 nm using image j software. The pore size distribution and specific surface area of SnO2 nanoparticles were examined by the Barrett– Joyner–Halenda technique. A circular pellet having diameter of 2 inch and a square pellet having a side of 2 cm was prepared to study the hydroelectric properties. Peak current value 72.1 mA was observed in circular pellet with almost constant voltage of 0.981 V whereas peak current and voltage values for the square pellet were 12.5 mA and 0.972 V respectively. Dissociation of water and conduction phenomenon have been confirmed using dielectric and DC conductivity behavior of samples.
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Springer Science+Business
Media, LLC, part of Springer Nature 2020
1 Introduction In the current scenario of energy crisis all over the world and reduction of limited natural fossil fuels, it is the need of hour to develop alternative eco-friendly fuel systems [1, 2]. In modern era, other available energy devices such as solar energy, Li-ion and electrochemical batteries are suffering from their limited efficiency, high cost and environmental issues [3, 4]. Therefore, researchers, scientists and industries
are looking for environmentally friendly and prolong energy sources which may be highly advantageous for the society [5]. Word wide, lot of research has been done on unconventional source of energy like hydrogen energy, wind energy and solar energy since last four decades [6–8]. Remarkable work has been performed by many researchers to improve the efficiency of photo electrochemical cells [9, 10]. Recently, it was observed that dissociation of water molecules on the surface of metal oxides can generate
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https://doi.org/10.1007/s10854-020-04880-9
J Mater Sci: Mater Electron
the green electrical energy using Hydroelectric Cells (HEC). In HEC, few drops of water produced electrical energy without any harmful effects to the environment. There is no emission of any harmful gases or chemicals in this cell, therefore the
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