| Autor: |
Yu Heng Tsai, Yi Ru Lai, Ting Kai Huang, Ya Ting Hsu, Hsin-Tien Chiu, Yu-Hsu Chang |
| Rok vydání: |
2015 |
| Předmět: |
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| Zdroj: |
RSC Advances. 5:108002-108006 |
| ISSN: |
2046-2069 |
| DOI: |
10.1039/c5ra17462g |
| Popis: |
One-dimensional Cu nanomaterials with a new morphology, rectangular copper nanotubes (copper NTs), were synthesized on a large-scale using a cetyltrimethylammonium chloride-assisted galvanic replacement reaction on rough Al substrates. In an acidic environment, Cu(II) is reduced on sharp-topped Al substrates and copper NTs 150–300 nm in diameter and 2–10 μm in length were formed through fine-tuning the reaction temperature and chemical stoichiometry. Field-emission measurement results show that the copper NTs emitting electrons at turn-on fields of 8.76 V μm−1 was observed with a field enhancement factor of 85. The superior catalytic property of copper NTs in the degradation of a methylene blue aqueous solution in the presence of H2O2 was also presented in this article. |
| Databáze: |
OpenAIRE |
| Externí odkaz: |
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