Dealloying solution dependence of fabrication, microstructure and porosity of hierarchical structured nanoporous copper ribbons
Dealloying solution dependence of fabrication, microstructure and porosity of hierarchical structured nanoporous copper ribbons
复制标题
分层结构纳米多孔铜带的制造、微观结构和孔隙率的脱合金溶液依赖性
DOI：
10.1016/j.corsci.2015.01.043
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发表时间：
2015-05-01
影响因子：
8.3
通讯作者：
Zhang, Shichao
中科院分区：
文献类型：
--
作者：
Liu, Wenbo;Chen, Long;Zhang, Shichao
采用一锅法对27 at.%的双相Al进行化学去合金化，制备出了具有整体分级结构的纳米多孔铜带（HSNCR）具有过共晶结构的铜合金。结果表明，脱合金溶液对制品的制备、显微组织和气孔率有重要影响。在酸性/碱性介质中脱合金后，HSNCR由相互连接的大尺寸迷宫/河流形通道组成，通道壁为层状/均匀多孔通道。在碱性溶液中脱合金的样品比表面积是酸性溶液中脱合金样品比表面积的2倍。此外，通过改变脱合金溶液，可以有效地调节产物的微观结构（形貌、尺寸和分布）和孔隙率。(C)2015爱思唯尔有限公司版权所有。
The monolithic hierarchical structured nanoporous copper ribbons (HSNCRs) have been facilely fabricated by one-pot chemical dealloying of dual-phase Al 27 at.% Cu alloy with hypereutectic structure. The results show that dealloying solution has a key influence on fabrication, microstructure and porosity of products. The HSNCRs are composed of interconnected large-sized maze/river-shape channels with laminated/uniform porous channel walls upon dealloying in acidic/alkaline medium. The specific surface area of samples by dealloying in alkaline solution is two times larger than that in acidic solution. Additionally, microstructure (morphology, sizes and distribution) and porosity of products can be tuned effectively by changing dealloying solution. (C) 2015 Elsevier Ltd. All rights reserved.