Analysis of Utilization of Alumina and Carbon Concentrations in Salt Bridges in Electrochemical Cells Zn|Zn2+(Aq)||Ag+(Aq)|Cu(Ag) with Electrolyte Seawater and Zinc Acid as Alternative Energy Sources

Mayang Shavira; Gurum Ahmad Pauzi; Sri Wahyu Suciyati; Amir Supriyanto

doi:10.23960/jemit.194

Authors

Mayang Shavira Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung
Gurum Ahmad Pauzi Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung, Bandar Lampung, Indonesia, 35141
Sri Wahyu Suciyati Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung, Bandar Lampung, Indonesia, 35141
Amir Supriyanto Department of Physics, Faculty of Mathematics and Natural Sciences, University of Lampung, Bandar Lampung, Indonesia, 35141

DOI:

https://doi.org/10.23960/jemit.194

Keywords:

salt bridge, electrical characteristic, zinc acid, Seawater

Abstract

This study was conducted to analyze the comparison of variations in the salt bridge in a two-compartment voltaic cell with a Cu(Ag)-Zn electrode on the resulting electrical characteristics. The Cu(Ag)-Zn pair is used to generate voltage and current in the cell with seawater electrolyte and zinc acid. The two compartments are lined with a salt bridge made of Al₂O₃ (aluminum oxide), and Carbon, NaCl (seawater) dissolved in Tiga Roda white cement. The voltaic cell consists of 4 cells arranged in series, each cell filled with ±200 ml of seawater (cathode part) and ±200 ml of acid zinc solution (anode part). The voltaic cell was measured with a multitester every 1 hour for 3 days. Based on the research that has been done, it can be concluded that the variation of the carbon salt bridge with a concentration of 12 grams has the greatest electrical characteristic value.

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