Electricity generation by splitting of water from hydroelectric cell: An alternative to solar cell and fuel cell. (27th July 2020)

• Record Type: Journal Article
• Authors: Das, Rojaleena; Shah, Jyoti; Sharma, Sanjeev; Sharma, Pritam Babu; Kotnala, Ravinder Kumar
• Is Part Of: International journal of energy research. Volume 44:Number 14(2020)
• Page Start: 11111
• Page End: 11134
• Publication Date: 2020-07-27
• Subjects: Green energy device -- hydroelectric cell -- nano porosity -- non‐photocatalyticactivity -- oxygen defects; Power resources -- Periodicals; Power (Mechanics) -- Periodicals; Power resources -- Research -- Periodicals; 621.042
• DOI: 10.1002/er.5698
• Languages: English
• ISSNs: 0363-907X

Abstract

Summary: Harnessing green electricity by hydroelectric cell from water molecule splitting based on uniquely processed ferrites, multiferroic, composites and metal oxides has astonished the world. The specially processed oxygen deficient Nano porous ferrite/metal oxide attached with two dissimilar electrodes known as hydroelectric cell to generate electricity using a few drops of water for the first time it was invented in 2016. It is a primary source of energy that operates on the principle of spontaneous water molecule dissociation (OH − and H3 O + ) by oxygen deficient and Nano porous materials such as Mg0.8 Li0.2 Fe2 O4, SiO2, SnO2, MgO, Fe2 O3, Fe3 O4, and TiO2 . The electrodes attached on oxide pellets are the Zn sheet anode and inert cathode Ag paste fabricated as hydroelectric cell. Chemi‐dissociation of water molecule on the pellet surface followed by physi‐dissociation results into H3 O + ion hopping and that ultimately leads to hopping of H + ions into nanopores. This phenomenon generates enough electric potential that spontaneously dissociates physisorbed water molecules on the pellet surface, thus sustaining current in the cell. Redox reactions of OH − and H3 O + at Zn and Ag electrodes, respectively, generate cell potential, which allows the flow of electric current in the external circuit of the cell. A pellet of size 1 in. square of Mg0.8 Li0.2 Fe2 O4, SnO2, and Fe3 O4 etc. is able to deliver current of 8, 22, and 50 mA with a voltage of 0.98, 0.78, and 0.83 V, respectively. Hydroelectric cell working in different functional mode is able to produce high purity hydrogen gas and zinc hydroxide nanoparticles also. This review compiled the detailed working mechanism of recently invented hydroelectric cell, with studies done on different oxide materials in order to understand their water splitting properties, its advantages and limitation along with future prospect for complementing other sources for power generation. Hydroelectric cell has brought a big revolution recently in green energy sector by opening a new field in energy materials based on water splitting by non‐photocatalytic process and is progressing rapidly its development, therefore there is a need of concise and comprehensive article to introduce its working to advance this new green energy device knowledge to young researchers globally. Conduciveeconomics, ubiquitous resources, user friendly technology with no disposal issue make hydroelectric cell a future potential green energy source as a better low cost alternative to solar and fuel cell. Abstract : It presents an overview on the working of recently invented Hydroelectric Cell (a magical device) generates green electricity by few water drops only and manifests its advantages and limitations critically by assessing future prospect for power generation to augment energy demand for the masses for its ecofriendly nature. A comparative study has been mainly focussed on electricity generation by splitting of water by Hydroelectric Cell through non‐photocatalytic activity and is a better alternative to Solar Cell, Fuel Cell and batteries.