CAJ | 학술논문

钛基IrO2-Ta2O5涂层阳极的形状分别是板状和扩张网.采用涂覆了H2IrCl6·H2O的盐酸溶液和TaCl5乙醇溶液的混合溶液再进行热分解制备得到IrO2-Ta2O5涂层.分别采用SEM,EDX,CV和加速寿命测试对电极的微观结构和电化学性能进行分析.相对板状电极而言,由于较少的活性物质IrO2在电极表面结晶析出,扩张网状电极具有更低的电化学催化活性.但是由于表面的裂纹较为细密、表面活性元素分布也较为均匀,并且其纵截面的形状更有利于电解析出的气泡排出,扩张网状电极具有更长的加速寿命.
태기IrO2-Ta2O5도층양겁적형상분별시판상화확장망.채용도복료H2IrCl6·H2O적염산용액화TaCl5을순용액적혼합용액재진행열분해제비득도IrO2-Ta2O5도층.분별채용SEM,EDX,CV화가속수명측시대전겁적미관결구화전화학성능진행분석.상대판상전겁이언,유우교소적활성물질IrO2재전겁표면결정석출,확장망상전겁구유경저적전화학최화활성.단시유우표면적렬문교위세밀、표면활성원소분포야교위균균,병차기종절면적형상경유리우전해석출적기포배출,확장망상전겁구유경장적가속수명.
The titanium substrates of IrO2-Ta2O5 coating anodes were manufactured into plate and expanded mesh,respectively.The coatings were prepared by conventionally thermal decomposition with a mixture of H2IrCl6·6H2O dissolved in hydrochloric acid and TaCl5 dissolved in alcohol.The microstructure and electrochemical properties of the electrodes were studied with SEM,EDX,CV and accelerated life test.Compared with plate shape anode,expanded mesh anode has a little lower electrochemical activity due to less active IrO2 crystals precipitation out on it and slender cracks.However,it has longer accelerated life time due to steady and well-distributed ingredient of the coatings and less differences of the atom ratio of Ir and Ta of bulging area and fiat area.