%0 Journal Article
%T EFFECT OF SnO_2 ADDITION ON THE SERVICE LIFE AND ELECTROCHEMICAL PROPERTIES OF Ti/IrO_2,+Ta_2O_5 ANODES IN PHENOLSULFONIC ACID SOLUTION<br>EFFECT OF SnO_2 ADDITION ON THE SERVICE LIFE AND ELECTROCHEMICAL PROPERTIES OF Ti/IrO_2, Ta_2O_5 ANODES IN PHENOLSULFONIC ACID SOLUTION
%A JM Hu
%A HM Meng
%A DB Sun
%A SJ Zhang
%A JX Wu
%A DJ Yang Beijing Corrosion
%A Protection Center
%A Open Laboratory of Corrosion
%A Erosion
%A Surface Technology
%A University of Science
%A Technology Beijing
%A Beijing
%A China
%A <br>J.M. Hu
%A H.M. Meng
%A D.B. Sun
%A S.J. Zhang
%A J.X. Wu and D.J. Yang Beijing Corrosion and Protection Center
%A Open Laboratory of Corrosion
%A Erosion and Surface Technology
%A University of Science and Technology Beijing
%A Beijing
%A China
%J 金属学报(英文版)
%D 2000
%I 
%X Service life of two different oxide anodes in phenolsulfonic acid (PSA) solution was investigated by accelerated electrolysis. The durability of Ti/IrO_2 Ta_2 O_5 anode increased by the addition of SnO_2 in the mixed oxides. The degradation mechanisms of Ti/IrO_2 Ta_2 O_5 and Ti/IrO_2 Ta_2 O_5 SnO 2 anodes were different. It was shown from the observation of scanning electron microscopy (SEM) and the electrochcmical measurement that, the deactivation of Ti/IrO_2 Ta_2 O_5 anode was due to the build-up of an organic film on surface. The growth of the covered film on surface was restricted by addition of SnO_2, which resulted in increasing of the service life of anodes. The over-potential for oxygen evolution on Ti/IrO_2 Ta_2 O_5 electrode increased after doping SnO_2, and the intermediate products of PSA building-up on the surface was much more rapidly oxidized. Meanwhile, a certain part of the surface oxide deposit entered into the solution leading to loss of oxides, which resulted in degradation of Ti/IroO_2 Ta_2 O_5 anode containing SnO_2 component.
%K metal oxide anode
%K IrO_2
%K Ta_2 O_5
%K IrO_2
%K Ta_2 O_5
%K SnO_2
%K phenolsulfonic acid
%K degradation<br>
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=AB188D3B70B071C57EB64E395D864ECE&jid=C19B08D052F5FD8445F4BB80A1A5D7BF&aid=D746A37FC5A1462BA0B980B8586662A1&yid=9806D0D4EAA9BED3&vid=FC0714F8D2EB605D&iid=E158A972A605785F&sid=AB8B0EE7E1A96CB2&eid=E4D705EE6D9DC112&journal_id=1006-7191&journal_name=金属学报(英文版)&referenced_num=0&reference_num=16