期刊
MICRO & NANO LETTERS
卷 11, 期 7, 页码 378-381出版社
INST ENGINEERING TECHNOLOGY-IET
DOI: 10.1049/mnl.2016.0034
关键词
nanoporous materials; copper; nanofabrication; pyrolysis; sintering; surface morphology; X-ray diffraction; scanning electron microscopy; nitrogen; adsorption; desorption; monolithic nanoporous copper; sintering; copper oxalate precipitate; manganese oxalate; sintered temperature; thermal decomposition; microscopic morphology; thermogravimetric analysis; X-ray diffraction; scanning electron microscopy; nitrogen adsorption; nitrogen desorption; interconnected pores; copper grains; specific surface area; temperature 400 degC; time 30 min; N-2; Cu
资金
- Project of State Key Laboratory of Explosion Science and Technology, P. R. China [YBKT13-03, YBKT12-03]
- Specialized Research Fund for the Doctoral Program of Higher Education of China [20131101110009]
Two more simple methods were used for preparation of the monolithic nanoporous copper. One was that through decomposition and sintering of copper oxalate precipitate directly. The other was that through decomposition and sintering of copper oxalate and manganese oxalate. The effects of sintered temperature and holding time on the morphology of the monolithic nanoporous copper were investigated. Thermal decomposition, composition and morphology of copper oxalate precipitate, as well as microscopic morphology and specific surface area of the monolithic nanoporous copper were analysed by thermogravimetric analysis, X-ray diffraction, scanning electron microscope and nitrogen adsorption-desorption. The preferable nanoporous copper can be prepared by decomposition and sintering of copper oxalate directly at 400 degrees C for 30 min. The prepared monolithic nanoporous copper is of open and interconnected pores and is made up of copper grains with the size of about 100 nm, which is as high as 69.9 m(2) g(-1) in specific surface area.
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