Synthesis of porous copper from nanocrystalline two-phase Cu–Zr film by dealloying

Lu, Haibo; Liu, Ying; Wang, Fuhui

doi:10.1016/j.scriptamat.2006.09.009

Cited by 113 publications

(53 citation statements)

References 25 publications

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“…The surface morphology differed significantly according to the HF concentration. Similar to bicontinuous nanoporous structures dealloyed from crystalline alloy systems, [1][2][3][4][5][6] treating the sample with 0.05 M HF solution gave a nanoporous structure. A denser surface was obtained by treating with 0.1 M HF solution.…”

Section: Methodsmentioning

confidence: 99%

“…1,2) Although dealloying has received attention in the context of corrosion, it has recently been receiving renewed attention because particular systems exhibit nanostructure or nanoporosity evolution upon dealloying. 1,2) Interesting dealloying behaviors have been observed for binary systems, including Ag-Au, [1][2][3][4][5] Cu-Zr, [6][7][8] Cu-Pt, 9) and Pt-Si. 10) Compared to the crystalline alloys, multicomponent metallic glasses are monolithic in phase with a homogeneous composition and structure down to the subnanoscale.…”

Section: Introductionmentioning

confidence: 99%

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Dealloying of Cu-Zr-Ti Bulk Metallic Glass in Hydrofluoric Acid Solution

et al. 2009

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The dealloying behavior of Cu 60 Zr 30 Ti 10 metallic glass was investigated under free corrosion conditions using hydrofluoric acid (HF) solutions at room temperature. After immersing in HF solutions with various concentrations (0.05, 0.1, 0.5 and 1 M) for 300 s, color of all samples changed to be pinkish or peachy, which was ascribed to Cu based on the XRD patterns. According to the SEM-EDS study, HF immersion selectively leached the Zr and Ti elements, leaving Cu behind. Increasing the HF concentration increased the dealloying rate. Moreover, the HF concentration strongly influenced the surface morphology of the resulting Cu.

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Section: Methodsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Dealloying of Cu-Zr-Ti Bulk Metallic Glass in Hydrofluoric Acid Solution

et al. 2009

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“…One of the most widespread method of nanoporous metal structures formation is dealloying process, which consist in selective chemical or electrochemical etching of a desired component from its alloy [29][30][31][32][33][34]. Also porous metal nanosystems can be synthesized using a template with desired pore structure.…”

Section: Introductionmentioning

confidence: 99%

Formation of copper porous structures under near-equilibrium chemical vapor deposition

Kornyushchenko

Natalich

Perekrestov

2016

Journal of Crystal Growth

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a b s t r a c tThe mechanism of copper structure formation under near-equilibrium conditions in a chemically-active medium-condensate system has been investigated. The desired conditions have been implemented using CVD system. Copper chloride CuCl 2 was used as a source material, and mixture of hydrogen with nitrogen served as a working gas. The influence of the evaporation temperature, condensation temperature and state of the growth surface on the porous structures formation has been investigated. It has been established, that the structure formation mechanism is determined by layer-by-layer or normal crystal growth, nucleation and growth of whiskers, and also by partial intergrowth of structural elements.

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“…Pore structure can be prepared via dealloying of a metal component in the alloy which can be generated by sputtering [12], casting [13], electrodepositon [11,14] or thermal treatment [10]. Using these techniques, a number of alloy compositions were obtained i.e., nickel and copper [14], gold and silver [15], platinum and copper [11], copper and zirconium [12] and copper and zinc [10]. The more electroactive component was then dealloyed by either electrochemical [14] or chemical [10] techniques.…”

Section: Introductionmentioning

confidence: 99%

Fabrication of Nanoporous Copper Film for Electrochemical Detection of Glucose

et al. 2009

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A nanoporous copper film was fabricated on a copper wire by electrodeposition of copper/zinc alloy and chemically etching of zinc. The surface morphology was investigated by SEM. When applied to detect glucose in an amperometric flow injection system the porous copper electrode provided 12 times higher sensitivity than solid copper. It could be continuously used up to 50 times (%RSD ¼ 5.7). Different preparations of the porous film provided reproducible responses (P < 0.05). Detection of glucose in E. coli cultivation medium compared well with spectrophotometric technique (P < 0.05). This simple technique can produce a nanoporous electrode with good performances and can easily be applied to other metals and analytes.

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Synthesis of porous copper from nanocrystalline two-phase Cu–Zr film by dealloying

Cited by 113 publications

References 25 publications

Dealloying of Cu-Zr-Ti Bulk Metallic Glass in Hydrofluoric Acid Solution

Dealloying of Cu-Zr-Ti Bulk Metallic Glass in Hydrofluoric Acid Solution

Formation of copper porous structures under near-equilibrium chemical vapor deposition

Fabrication of Nanoporous Copper Film for Electrochemical Detection of Glucose

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