Electroless galvanic inks on inorganic WO3/Al boards |
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| Authors: | Miyauchi Masahiro Li Yue Yanai Shunsuke Yotsugi Kazuya |
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| Institution: | Department of Metallurgy and Ceramics Science, Graduate School of Science and Engineering, Tokyo Institute of Technology, 2-12-1 Ookayama, Tokyo 152-8552, Japan. mmiyauchi@ceram.titech.ac.jp |
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| Abstract: | A tungsten trioxide (WO(3)) coated aluminium (Al) substrate exhibits a reversible color change without light irradiation or an electric power supply. The sample turns blue upon exposure to an aqueous acid solution, but exposure to oxygen restores the original light yellow color. This color change is due to the galvanic redox reaction between WO(3) and Al. |
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