Effect of Sintering Technology on Ag/AgCl Electrode Potential Stability

Abstract

The solid-state Ag / AgCl electrode was used to explore the ocean electric field. The effects of sintering technologies on the stability of electrode potential were researched. Four kinds of electrodes, which were respectively sintered to two temperatures of 380°C and 420°C by two heating methods of direct heating and phase-type heating methods, were prepared. Their surface morphologies, metallographic structures and the electrode potentials in 3.5% sodium chloride solution were analyzed to compare the stability of different sintering technologies. The results show that the electrodes sintered to 380°C by phase-type heating - insulation method have the best stability of potential, and potential difference of two electrodes is less than 0.02079mv/h.

Influence of Double-Pulse Electrodeposition Parameters on the Performance of Ag/AgCl Electrochemical Electrode for Marine Electric Field

“…Commonly used preparation methods for Ag/AgCl marine electric field electrodes include direct current electrolysis, thermal dip plating, and sintering [20][21][22][23]. Among them, the direct current electrolysis method allows rapid preparation of Ag/AgCl marine electric field electrodes by applying constant current (i.e., chronopotentiometry) or potential (i.e., chronoamperometry) to cover the substrate surface with a AgCl deposition layer.…”

Research on Sensitivity of Ag/AgCl Electrode to the ELFE

“…With the development of marine exploration and detection, Extremely Low Electric Field (ELEF) detection has become an important research project [1]. High performance electric field electrode is essential to ocean exploration.…”

“…Currently, the research of detecting electrode is in infancy. Although the published papers on electrode self-noise and long-term stability are many [2], the sensitivity of detecting electrode was researched less [3]. As the main solute of seawater are strong electrolyte, the high-frequency electric field can be attenuated by the seawater in the transmitting process [4].…”