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http://hdl.handle.net/10397/106578
Title: | A facile one-pot dealloying strategy to synthesize monolithic asymmetry-patterned nanoporous copper ribbons with tunable microstructure and nanoporosity | Authors: | Liu, W Xin, C Chen, L Yan, J Li, N Shi, S Zhang, S |
Issue Date: | 2016 | Source: | RSC advances, 2016, v. 6, no. 4, p. 2662-2670 | Abstract: | In the present work, an effective and facile one-pot dealloying strategy has been developed to synthesize monolithic asymmetry-patterned nanoporous copper ribbons (AP-NPCRs) from melt-spun bi-phase Al 32 at% Cu alloy with trace α-Al. The microstructure and nanoporosity of these AP-NPCRs were characterized using X-ray diffraction, scanning electron microscopy, energy dispersive X-ray analysis, transmission electron microscopy, high-resolution transmission electron microscopy, and Brunauer–Emmett–Teller measurements. The results show that the cooling rate and dealloying solution have a significant influence on formation, microstructure and nanoporosity of AP-NPCRs. The quenching surface of porous products has regular bimodal channel size distributions regardless of corrosive solution species, while the free surface shows a homogeneous porous network nanostructure in acidic solution and anomalous bimodal nanoporous architecture in alkaline medium. Additionally, the microstructure (surface morphology, ligament/channel sizes and distribution) and nanoporosity of AP-NPCRs can be modulated effectively by simply changing the dealloying solution. | Publisher: | Royal Society of Chemistry | Journal: | RSC advances | EISSN: | 2046-2069 | DOI: | 10.1039/c5ra22978b | Rights: | This journal is © The Royal Society of Chemistry 2016 This is the accepted manuscript of the following article: Liu, W., Xin, C., Chen, L., Yan, J., Li, N., Shi, S., & Zhang, S. (2016). A facile one-pot dealloying strategy to synthesize monolithic asymmetry-patterned nanoporous copper ribbons with tunable microstructure and nanoporosity. RSC advances, 6(4), 2662-2670, which has been published in final form at https://doi.org/10.1039/c5ra22978b. |
Appears in Collections: | Journal/Magazine Article |
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Shi_Facile_One-Pot_Dealloying.pdf | Pre-Published version | 1.88 MB | Adobe PDF | View/Open |
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