采用电化学阳极氧化法制备了高度有序Ti02纳米管阵列,并提出纳米管“兼并”的概念.结合FE-SEM分析并验证了Macak等人提出的pH值梯度理论,并在此基础上用双电层理论解释了“兼并”的形成机理,同时解释了初期纳米管管径进一步增大的原因.
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