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   Synthesis of Antimonate-Based Anode and Evaluation of Electrocatalytic and Corrosion Properties For Gas Evolution Reaction in Acidic Media  
   
DOR 20.1001.2.0021079099.1400.8.1.38.8
نویسنده Rezaei M.
منبع كنگره بين المللي رنگ و پوشش - 1400 - دوره : 8 - کنگره بین المللی رنگ و پوشش - کد همایش: 00210-79099 - صفحه:1 -1
چکیده    Today, the oxide of noble metals such as iridium and ruthenium is used on the titanium substrate to perform an anode gas evolution reaction in harsh electrolytes. due to the scarcity of these elements and also costly production of these anodes, water splitting systems have faced challenges. therefore, the use of non-precious metals have been considered. the purpose of this study is to synthesis electrocatalytic anodes using non-precious metals on titanium substrate. the sol-gel method was used to synthesize these anodes. in this method, ethylene glycol was used as a solvent, citric acid as a gelling agent, antimony trioxide and cobalt and nickel chloride were used. the coating was applied to the substrate by the brush method and the electrodes were calcined at 600 . in this study, icp analysis was used to describe the corrosion behavior of these anodes, lsv was used to measure catalytic activity and cp was used to estimate the stability. synthesized electrocatalytic anodes of cobalt antimonate, cobalt-nickel antimony and different molar ratios of cobalt and antimony in acidic media were evaluated for oer. lsv showed that the cobalt antimonate catalyst has an intrinsic potential of 1.615 volts vs. rhe. the stability of the anodes under a current density of 10 ma.cm-2 were at least 200 hours (more than 8 days). according to the icp results, the dissolution of cobalt and antimony during the cp at the current density of 10 ma.cm-2 were initially severe and then their corrosion rate decreased.
کلیدواژه Electrocatalyst Anode ,Oxygen Evolution Reaction ,Water Splitting ,Anode Activity ,Anode Stability ,Harsh Electrolyte
آدرس Amirkabir University Of Technology, Department Of Materials And Metallurgical Engineering, Iran
 
   Synthesis of Antimonate-based Anode and Evaluation of Electrocatalytic and Corrosion Properties For Gas Evolution Reaction in Acidic Media  
   
Authors Rezaei M.
Abstract    Today, the oxide of noble metals such as iridium and ruthenium is used on the titanium substrate to perform an anode gas evolution reaction in harsh electrolytes. Due to the scarcity of these elements and also costly production of these anodes, water splitting systems have faced challenges. Therefore, the use of non-precious metals have been considered. The purpose of this study is to synthesis electrocatalytic anodes using non-precious metals on titanium substrate. The sol-gel method was used to synthesize these anodes. In this method, ethylene glycol was used as a solvent, citric acid as a gelling agent, antimony trioxide and cobalt and nickel chloride were used. The coating was applied to the substrate by the brush method and the electrodes were calcined at 600 . In this study, ICP analysis was used to describe the corrosion behavior of these anodes, LSV was used to measure catalytic activity and CP was used to estimate the stability. Synthesized electrocatalytic anodes of cobalt antimonate, cobalt-nickel antimony and different molar ratios of cobalt and antimony in acidic media were evaluated for OER. LSV showed that the cobalt antimonate catalyst has an intrinsic potential of 1.615 volts vs. RHE. The stability of the anodes under a current density of 10 mA.cm-2 were at least 200 hours (more than 8 days). According to the ICP results, the dissolution of cobalt and antimony during the CP at the current density of 10 mA.cm-2 were initially severe and then their corrosion rate decreased.
Keywords Electrocatalyst Anode ,Oxygen Evolution Reaction ,Water Splitting ,Anode Activity ,Anode Stability ,Harsh Electrolyte
 
 

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