黄铜矿精矿在甘氨酸介质中的循环伏安及动电位极化研究（英文）-豆柴文库

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黄铜矿精矿在甘氨酸介质中的循环伏安及动电位极化研究（英文）
CyclicVoltammetryandDynamicPolarizationStudyofBrassOreConcentrateinGlycineMedium
Abstract:
Inthisstudy,theelectrochemicalbehaviorofbrassoreconcentrateinglycinemediumwasinvestigatedusingcyclicvoltammetryanddynamicpolarizationtechniques.Cyclicvoltammetryexperimentswereconductedtounderstandtheredoxprocessesandsurfacereactionsoccurringduringtheelectrochemicaloxidationofbrassoreconcentrate.Thedynamicpolarizationtechniquewasusedtodeterminethecorrosionbehaviorandthekineticsofthepassivationfilmformationonthesurfaceofbrassoreconcentrate.Theresultsindicatedthatglycinemediumsignificantlyinfluencedtheelectrochemicalbehaviorofbrassoreconcentrate,leadingtotheformationofapassivationfilmontheelectrodesurface.Thecorrosionmechanismandpassivationkineticswerestudiedandanalyzedindetail.
1.Introduction:
Brassoreconcentrateisavaluablesourceofcopperandzinc,whicharewidelyusedinvariousindustriesincludingelectronics,construction,andtransportation.Understandingtheelectrochemicalbehaviorofbrassoreconcentrateisessentialforoptimizingitsprocessingandextraction.Glycine,anaminoacid,isknowntoexhibitcomplexingpropertiestowardsmetalionsandcaninfluencetheelectrochemicalbehaviorofmetalsulfides.Therefore,studyingtheelectrochemicalbehaviorofbrassoreconcentrateinglycinemediumisofgreatimportance.
2.Experimental:
2.1Materials:
Thebrassoreconcentrateusedinthisstudywasobtainedfromaminingindustry.Glycinewasusedasasupportingelectrolytefortheelectrochemicalexperiments.Allchemicalsusedwereofanalyticalgradeandusedwithoutfurtherpurification.
2.2CyclicVoltammetry:
Cyclicvoltammetryexperimentswereperformedusingathree-electrodesetupconsistingofaworkingelectrode(brassoreconcentrate),aplatinumcounterelectrode,andasaturatedcalomelelectrodeasthereferenceelectrode.Thecyclicvoltammogramswererecordedatdifferentscanratestodeterminetheredoxprocessesoccurringduringtheelectrochemicaloxidationofbrassoreconcentrate.
2.3DynamicPolarization:
Thedynamicpolarizationexperimentswerecarriedoutusingapotentiosta