- Study on the Properties of Catalase Activity Using Cuprite Nano-Particles Synthesized by Hydrolysis Method
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Y.-R. Uhm, W.-W. Kim, J.-S. Oh, C.-K. Rhee
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J Korean Powder Metall Inst. 2005;12(1):51-55.
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DOI: https://doi.org/10.4150/KPMI.2005.12.1.051
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 Abstract
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- Cu_2O nano cubes with high catalase activity were synthesized by reduction of freshly prepared Cu in distilled water at 40circC and their catalase activities of H_2O_2 were studied. Transmission electron microscopy (TEM) observation showed that most of these nanocubes were uniform in size, with the average edge length of 30 nm. Selected area electron diffraction of TEM revealed that the nanocube consisted of single crystalline Cu_2O, but it changed to CuO phase. The catalase activity depends on the amount of both cuprite phase and surface area.
- Study on the Catalytic Properties of Copper Oxide Nanoparticles Synthesized by Levitational Gas Condensation (LGC) Method
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Y.-R. Uhm, W.-W. Kim, J.-S. Oh, C.-K. Rhee
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J Korean Powder Metall Inst. 2005;12(1):64-69.
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DOI: https://doi.org/10.4150/KPMI.2005.12.1.064
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Abstract
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- The copper oxide nano powders were synthesized by levitational gas condensation(LGC) method, and their high heterogeneous catalytic effects of oxidation of 2,3,5-trimethyl-1,4- hydroquinone (TMHQ) and catalase activity were studied. The observation of transmission electron microscopy (TEM) shows that most of these nano powders are uniform in size, with the average particle size of 35 nm. The nano powder consists of mainly Cu_2O, but it is aged to CuO phase. The catalytic effect which was clarified by oxidation of TMHQ and catalase depends on the amount of cuprite phase and the particle size.
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