CVD Synthesis of Monodisperse Graphene/Cu Microparticles with High Corrosion Resistance in Cu Etchant
| Autor: | Zhang Qiang, Zhixiang Zhu, Qiang Wang, Shengcheng Shu, Mingliang Wu, Li Shuangyi, Yi Ding, Ao Li, Bao-An Chen, Nan Jiang, Dan Dai, Yu Han, Baosen Hou, Cheng-Te Lin |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2018 |
| Předmět: |
Materials science
Alloy chemistry.chemical_element 02 engineering and technology Chemical vapor deposition chemical vapor deposition (CVD) growth engineering.material 010402 general chemistry 01 natural sciences lcsh:Technology Corrosion law.invention Coating law Powder metallurgy monodisperse General Materials Science lcsh:Microscopy lcsh:QC120-168.85 removal spacers corrosion resistance lcsh:QH201-278.5 Graphene lcsh:T Communication 021001 nanoscience & nanotechnology Copper 0104 chemical sciences chemistry Chemical engineering lcsh:TA1-2040 engineering lcsh:Descriptive and experimental mechanics lcsh:Electrical engineering. Electronics. Nuclear engineering graphene/Cu microparticles 0210 nano-technology lcsh:Engineering (General). Civil engineering (General) Layer (electronics) lcsh:TK1-9971 |
| Zdroj: | Materials Materials, Vol 11, Iss 8, p 1459 (2018) |
| ISSN: | 1996-1944 |
| Popis: | Copper powder has broad applications in the powder metallurgy, heat exchanger, and electronic industries due to its intrinsically high electrical and thermal conductivities. However, the ease of formation of surface oxide or patina layer raises difficulty of storage and handling of copper powder, particularly in the case of Cu microparticles. Here, we developed a thermal chemical vapor deposition chemical vapor deposition (CVD) process for large-scale synthesis of graphene coatings on Cu microparticles, which importantly can remain monodisperse without aggregation after graphene growth at high temperature by using removal spacers. Compared to other protective coating methods, the intrinsic electrical and thermal properties of Cu powder would not be degraded by uniform growth of low defect few-layer graphene on each particle surface. As a result, when the anticorrosion performance test was carried out by immersing the samples in Cu etchant, the corrosion rate of graphene/Cu microparticles was significantly improved (ca three times slower) compared to that of pristine Cu powder, also showing a comparable anticorrosion ability to commercial CuZn30 alloy. |
| Databáze: | OpenAIRE |
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