Effect of Recycle of Electrolyte on the Morphology of Anodized Ta2O5 Nanotubes
YANG Shuai1, LIU Shifeng1,2, ZHANG Jing1, LIU Yahui1, DENG Chao1,2, ZHU Jialin1
1 College of Materials Science and Engineering, Chongqing University, Chongqing 400044, China 2 Electron Microscopy Center of Chongqing University, Chongqing 400044, China
Abstract: The high purity tantalum sheets were successively put into a H2SO4/HF electrolyte with a volume ratio of 9∶1 for anodic oxidation to prepare Ta2O5 nanotubes. Scanning electron microscopy (SEM) was used to characterize the morphology of Ta2O5 nanotubes prepared on the 2nd, 10th, 25th, 35th and 50th sheets. The effect of electrolyte recycling on the morphology of anodized Ta2O5 nanotubes and its regularity were studied. The experimental results show that the top of Ta2O5 nanotubes changes from cluster to loose, the length of the nanotubes becomes longer, the diameter is stable and the gap among nanotubes increases gradually with the using of electrolyte, which are related to the concentration of F- and it's distribution uniformity in electrolyte.
杨帅, 刘施峰, 张静, 柳亚辉, 邓超, 祝佳林. 电解液的循环使用对阳极氧化Ta2O5纳米管形貌的影响[J]. 材料导报, 2021, 35(Z1): 112-115.
YANG Shuai, LIU Shifeng, ZHANG Jing, LIU Yahui, DENG Chao, ZHU Jialin. Effect of Recycle of Electrolyte on the Morphology of Anodized Ta2O5 Nanotubes. Materials Reports, 2021, 35(Z1): 112-115.
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