0.5m h2so4olh2so4中含有几molso4

磁场和Fe~(3+)对铁在0.5mol/LH_2SO_4中阴极极化行为的影响
: 37-41&&&&
磁场和Fe~(3+)对铁在0.5mol/LH_2SO_4中阴极极化行为的影响
吕战鹏;陈俊明
中国科学院上海冶金研究所
THE EFFECT OF MAGNETIC FIELD AND FERRIC IONS ON CATHODIC POLARIZATION BEHAVIOR OF IRON IN 0.5mol/L H_2SO_4 SOLUTION
Lu ZChen Junming
(491 KB) &
摘要:&用动电位扫描法研究了有无外磁场时纯铁在Fe2(SO4)和H2SO4+Fe2(SO4)3溶液中的阴极极化曲线。没有外加磁场时,Fe(3+)还原反应与H+去极化反应有相互促进作用。在单纯H2SO4溶液或单纯Fe2(SO4)3溶液中,外加0.4T磁场均加速铁的阴极过程,但不改变反应进行的机制;在H2SO4+Fe2(SO4)3溶液中磁场对铁阴极过程的加速作用是磁场对Fe(3+)还原和对氢离子去极化反应作用的综合结果。以外加磁场引起传质过程变化及电极—溶液界面双电层结构改变的观点解释了磁场的作用。
Abstract:Cathodic processes of iron in Fe2(SO4)3 and H2SO4+Fe2(SO4)3 solutions were studied in the presence of 0.4T(tesla)magnetic field at 20℃.It was found that Fe3+ reduction and H+ depolarization accelerated each other in the absence of magnetic field.Magnetic field accelerated the cathodic process of iron corrosion in Fe2(SO4)3 solution or in 0.5 mol/L H2SO4 solution but did not cnange the reaction mechanism.In 0.5 mol/L H2SO4+Fe2(SO4)3 solution a combined effect of magnetic field on Fe3+ reduction and H+ depolarization reaction was observed.The results were explained on the point of view that magnetic field changed the mass transfer process and the structure of electric double layer at the electrode-solution interface.
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吕战鹏;陈俊明. 磁场和Fe~(3+)对铁在0.5mol/LH_2SO_4中阴极极化行为的影响[J]. 中国腐蚀与防护学报, ): 37-41.
Lu ZChen Junming. THE EFFECT OF MAGNETIC FIELD AND FERRIC IONS ON CATHODIC POLARIZATION BEHAVIOR OF IRON IN 0.5mol/L H_2SO_4 SOLUTION. J Chin Soc Corr Pro, ): 37-41.
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rivastavaK;NigamN.Br.Corros.J,):1722GhabashyMA.Anti-Corrosion,):123GatosHC.J.Electrochem.Soc,):2864王晨,陈俊明·中国腐蚀与防护学报,):1235AaboubiO,ChopartJP,DougladeJ,OlivierA.J.Electrochem.Soc,):1796
陈俊明;吕战鹏. [J]. 中国腐蚀与防护学报, ): 119-125.
陈俊明;吕战鹏. [J]. 中国腐蚀与防护学报, ): 276-280.
吕战鹏;陈俊明. [J]. 中国腐蚀与防护学报, ): 303-307.
王晨;陈俊明. [J]. 中国腐蚀与防护学报, ): 123-128.2molFe2(SO4)3中含有( )molSO4 2- ( )mol Fe3+-学网-中国IT综合门户网站-提供健康,养生,留学,移民,创业,汽车等信息
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2molFe2(SO4)3中含有( )molSO4 2- ( )mol Fe3+
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