Morphology-controlled synthesis of CuO nano- and microparticles using microwave irradiation
SCIE
SCOPUS
KCI
- Title
- Morphology-controlled synthesis of CuO nano- and microparticles using microwave irradiation
- Authors
- Alum Jung; Seungho Cho; Won Joon Cho; Lee, KH
- Date Issued
- 2012-02
- Publisher
- KOREAN INST CHEM ENGINEERS+
- Abstract
- Microwave irradiation was used to obtain a variety of CuO crystal morphologies, including leaf-like, dan-, delion-like, and hollow structures. The morphology of the CuO crystals was controlled by varying the alkali source (NaOH, hexamethylenetetramine, ammonia, or urea) and heating at 95 degrees C for 1 hr. The X-ray diffraction patterns of as-prepared CuO crystals were consistent with high quality crystals with a monoclinic crystal structure. Field emission scanning electron microscopy (FE-SEM) and tunneling electron microscopy (TEM) images of CuO crystals revealed that the leaf-like CuO crystals had an average length of 950 nm and width of 450 nm, the small leaf-like CuO crystals had an average length of 450 nm and width of 200 nm, the dandelion-like CuO structures had an average diameter of 2 m, and the hollow CuO structures had an average diameter 2 m. Possible mechanisms for structure formation during the shape-selective CuO synthesis were proposed based on these results.
- Keywords
- Hydrothermal Synthesis; Copper Oxide; Microwave; Ammonia; Urea; LITHIUM-ION BATTERIES; HOLLOW MICROSPHERES; THERMAL-OXIDATION; CUPRIC OXIDE; ELECTRODE MATERIALS; HYDROTHERMAL ROUTE; ASSISTED SYNTHESIS; NANOSTRUCTURES; COPPER; NANOWIRES
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/16637
- DOI
- 10.1007/S11814-011-0168-4
- ISSN
- 0256-1115
- Article Type
- Article
- Citation
- KOREAN JOURNAL OF CHEMICAL ENGINEERING, vol. 29, no. 2, page. 243 - 248, 2012-02
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