冯庆,王快社,薛建超,贾波,郝小军.Mn掺杂提高IrO2-Ta2O5 电极在硫酸溶液中析氧的电催化活性[J].稀有金属材料与工程,2022,51(8):2810~2815.[Qing Feng,Kuaishe Wang,Jianchao Xue,Bo Jia,Xiaojun Hao.Improving Electrocatalytic Activity of IrO2-Ta2O5 Electrode for Oxygen Evolution in Sulfuric Acid Solution by Mn-doping[J].Rare Metal Materials and Engineering,2022,51(8):2810~2815.]
Mn掺杂提高IrO2-Ta2O5 电极在硫酸溶液中析氧的电催化活性
投稿时间:2022-03-29  修订日期:2022-07-22
中文关键词:  析氧反应  IrO2-Ta2O5阳极    电化学行为
基金项目:
中文摘要:
      制备了不同 Mn 含量的IrO2-Ta2O5-MnOx电极。揭示了Mn含量对该类电极的物理和电化学特性的影响。结果表明,涂??覆的IrO2-Ta2O5-MnOx层由于其凹凸不平的多孔结构而具有较大的比表面积。少量Mn的加入抑制了活性成分IrO2的结晶,并将其转化为Ir3+。适当地用 Mn 代替Ir可以显著提高 IrO2-Ta2O5-MnOx 电极的电催化性能。高的电催化活性、长的寿命和低的成本得益于 Mn 掺杂的电极具有更大的活性表面积,从而促进了硫酸溶液中氧的析出。
Improving Electrocatalytic Activity of IrO2-Ta2O5 Electrode for Oxygen Evolution in Sulfuric Acid Solution by Mn-doping
英文关键词:oxygen evolution reaction  IrO2-Ta2O5 anode  manganese  electrochemical behavior
英文摘要:
      IrO2-Ta2O5-MnOx electrodes with different Mn contents were prepared. The effect of Mn content on the physical and electrochemical characteristics of these electrodes was revealed. The results show that the coated IrO2-Ta2O5-MnOx layer has a larger specific surface area due to its bumpy and porous structure. The doping of a small amount of Mn inhibits the crystallization of the active ingredient IrO2 and turns it into Ir3+. With properly replacing Ir with Mn, the electrocatalytic performance of the IrO2-Ta2O5-MnOx electrodes can be enhanced dramatically. The increased electrocatalytic activity, longer lifetime and lower cost benefit from the larger active surface area of the Mn-doped electrode, thus promoting the release of oxygen in the sulfuric acid solution.
作者单位E-mail
冯庆 西安建筑科技大学 fengqing0715@126.com 
王快社 西安建筑科技大学  
薛建超 西安建筑科技大学  
贾波 西安泰金工业电化学技术有限公司  
郝小军 西安泰金工业电化学技术有限公司  
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