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| Content Provider | Springer Nature Link |
|---|---|
| Author | Tan, Xiu lan Li, Kai Niu, Gao Yi, Zao Luo, Jiang shan Liu, Ying Han, Shang jun Wu, Wei dong Tang, Yong jian |
| Copyright Year | 2012 |
| Abstract | Nanoporous copper with nano-scale pore size was synthesized by dealloying Mn-Cu precursor alloy using a free corrosion method. The effects of heat treatment of Mn-Cu precursors on alloy phase, morphology and composition of the resultant nanoporous copper were investigated. It is revealed that the compositions distribute homogeneously in the bulk Mn-Cu precursors, which consequently results in a more fully dealloying for forming nanoporous copper. The alloy phase changes from Cu$_{0.49}$Mn$_{0.51}$ and Cu$_{0.21}$Mn$_{0.79}$ of non-thermally treated precursor to Cu$_{0.33}$Mn$_{0.67}$ of heat treated alloy. The residual Mn content in nanoporous copper is decreased from 12.97% to 2.04% (molar fraction) made from the precursor without and with 95 h heat treatment. The typical pore shape of nanoporous copper prepared by dealloying the precursor without the heat treatment is divided into two different zones: the uniform bi-continuous structure zone and the blurry or no pore structure zone. Nanoporous copper is of a uniform sponge-like morphology made from the heat-treated precursor, and the average ligament diameter is 40 nm, far smaller than that from the non-thermally treated precursor, in which the average ligament diameter is estimated to be about 70 nm. |
| Starting Page | 17 |
| Ending Page | 21 |
| Page Count | 5 |
| File Format | |
| ISSN | 20952899 |
| Journal | Journal of Central South University of Technology |
| Volume Number | 19 |
| Issue Number | 1 |
| e-ISSN | 22275223 |
| Language | English |
| Publisher | Central South University |
| Publisher Date | 2012-01-05 |
| Publisher Place | Heidelberg |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | nanoporous copper preparation dealloying heat treatment morphology Metallic Materials Engineering |
| Content Type | Text |
| Resource Type | Article |
| Subject | Metals and Alloys Engineering |
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