Browsing by Author "Khan, K.A., Ohiduzzaman, M."

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Red Spinach-A New and Innovative Power Source
(Springer Science and Business Media Deutschland GmbH, 2021-05-08) Khan, K.A., Ohiduzzaman, M.; Islam, F.,; Hossain, M.S.; Rasel, S.R.,; Ohiduzzaman, M.
Different plants extracts have been proven that they are the potential for electricity generation. By immerging two electrodes into the extract to allow flow of ions and then electricity is produced. Different types of electrodes and plant leaves suggested that current and voltage are produced greater or lesser extents where Zn/Cu-based electrodes and PKL extract generates the maximum power output. The results confirmed that electrochemistry is the responsible for electricity generation. LED bulb lighting system using red spinach (Amaranthus dubius) extract with and without copper sulphate solution $$({\text{CuSO}}:{4} \cdot 5{\text{H}}_{2} {\text{O)}}$$. Bio-electrochemical systems show the process of electrical power generation or achieve the reduction reaction with a certain potential poised through electron transfer between the electron acceptor and electron donor. In a Zn/Cu bio-electrochemical cell, the zinc plate losses the electrons, the copper plate gains those electrons and the electrons react with H+ and Cu2+ ions and eventually convert into H2 and Cu atoms. Finally, H2 releases from the cell and copper atoms are deposited onto the Cu plate. The experimental was conducted with and without adding copper sulphate solution $${\text{CuSO}}:{4} \cdot 5{\text{H}}_{2} {\text{O}}$$ with red spinach extract. A comparative study has been done for with and without secondary salt $$({\text{CuSO}}:{4} \cdot 5{\text{H}}_{2} {\text{O)}}$$. It is found that the internal resistance has been decreased for using copper sulphate as a secondary salt and it was from 0.347 to 0.33 Ω. As a result current has been increased from 1.8 to 7.7 mA and obviously power has been increased from 5.76 to 20.2 mW.