Open AccessPeningkatan Karakteristik Listrik Sel Elektrokimia Cu(Ag)-Zn dengan Penggunaan AnodaTumbal Mgpada Accumulator Berbahan Air Laut
Author(s) -
Gurum Ahmad Pauzi,
Mia Abi Nisa,
Ahmad Saudi Samosir,
Sri Ratna Sulistiyanti,
Wasinton Simanjuntak
Publication year - 2020
Publication title -
jurnal teori dan aplikasi fisika/jurnal teori dan aplikasi fisika
Language(s) - English
Resource type - Journals
eISSN - 2549-1156
pISSN - 2303-016X
DOI - 10.23960/jtaf.v8i1.2448
Subject(s) - anode , accumulator (cryptography) , electrochemistry , cathodic protection , materials science , cathode , galvanic anode , magnesium , electrochemical cell , voltage , metallurgy , chemistry , electrode , electrical engineering , algorithm , computer science , engineering
This research was conducted to study the use of magnesium (Mg) as a sacrificial anode to protect Zn which is used as anode in electrochemical cells to generate electrical energy from seawater. Cu coated with Ag metal is used as a cathode to protect it from cathodic corrosion. The electrochemical cell consists of 20 cells arranged in a series, and each cell is filled with 300 mL of water. The electrochemical cell was connected to a 3 watt 12 volt LED load for 72 hours and data collection of electrical characteristics including voltage, current, and light intensity, every 1 hour. From the voltage and current data, the amount of resistance is calculated. The results showed that the use of Mg as a sacrificial anode resulted in greater electrical characteristics data compared to electrochemical cells without the use of sacrificial anodes.