Formation of self-organized pores on type 316 stainless steel in organic solvents
Formation of self-organized pores on type 316 stainless steel in organic solvents
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DOI：
10.1016/j.electacta.2012.06.048
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发表时间：
2012-11-01
影响因子：
6.6
通讯作者：
Fujimoto, Shinji
中科院分区：
文献类型：
--
作者：
Tsuchiya, Hiroaki;Suzumura, Takahiro;Fujimoto, Shinji
本文报道了316型不锈钢在有机溶剂中经电化学处理后形成的自组织气孔。电化学处理包括从0V到所需外加电位的电位斜坡，以及随后在所需外加电位下的恒电位极化。在含有高氯酸的各种有机溶剂中，不锈钢表面会形成气孔。在含有10%高氯酸的乙二醇电解液中，在电位上升到40V后，已经形成了平均直径150 nm、平均深度10 nm的孔洞。在处理初期，孔洞的直径和深度急剧增加，然后变小。外加电势也会影响孔的形态，即随着外加电势的增加，孔径和深度呈线性增加。水进入有机溶剂可以极大地提高毛孔的生长速度。(C)2012爱思唯尔有限公司。保留所有权利。
The present work reports the formation of self-organized pores on type 316 stainless steel by the electrochemical treatment in organic solvents. The electrochemical treatment consists of a potential ramp from 0 V to desired applied potentials and subsequent potentiostatic polarization at the desired applied potentials. Pores are formed on stainless steel surface in various organic solvents when they contain perchloric acid. In ethylene glycol electrolyte containing 10 vol.% perchloric acid pores with the average diameter of 150 nm and the average depth of 10 nm are formed already after the potential ramp to 40 V. The diameter and depth of pores drastically increase in the early stage of the treatment and then becomes slightly smaller. The applied potential also affects the porous morphology, that is, the diameter and depth linearly increase with increasing applied potential. Water into the organic solvent can drastically enhance the growth rate of pores. (c) 2012 Elsevier Ltd. All rights reserved.