Synthesis of hierarchical copper oxide composites prepared via electrical explosion of the wire in liquids method

Park, Eunju; Park, Hyung Wook; Lee, Jinae

doi:10.1016/j.colsurfa.2015.07.029

Cited by 16 publications

(6 citation statements)

References 37 publications

(32 reference statements)

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“…Compared to Al 2 O 3 , TiO 2 and ZnO, CuO has higher thermal conductivity. CuO is a monoclinic crystal structure and it has many attractive properties, a p-type semiconductor with a narrow band gap (1.2 eV) 12 . The nano-CuO material has great potential applications in heterogeneous catalyst, battery anode material, photothermal, photoconductive materials and other fields because of its attractive characteristics such as light 13 , electricity, magnetism and catalysis 14–16 .…”

Section: Introductionmentioning

confidence: 99%

Intriguingly high thermal conductivity increment for CuO nanowires contained nanofluids with low viscosity

Zhu

Wang

et al. 2018

Sci Rep

134

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Nanofluids offer the exciting new possibilities to enhance heat transfer performance. In this paper, experimental and theoretical investigations have been conducted to determine the effect of CuO nanowires on the thermal conductivity and viscosity of dimethicone based nanofluids. The CuO nanowires were prepared through a thermal oxidation method, and the analysis indicated that the as-prepared CuO nanowires had high purity, monocrystalline with a monoclinic structure and large aspect ratio compared to CuO nanospheres. The experimental data show that the thermal conductivity of the nanofluids increases with the volume fraction of CuO nanowires or nanospheres, with a nearly linear relationship. For the nanofluid with the addition of 0.75 vol.% CuO nanowires, the thermal conductivity enhancement is up to 60.78%, which is much higher than that with spherical CuO nanoparticles. The nanofluids exhibit typical Newtonian behavior, and the measured viscosity of CuO nanowires contained nanofluids were found only 6.41% increment at the volume fraction of 0.75%. It is attractive in enhanced heat transfer for application. The thermal conductivity and viscosity of CuO nanofluids were further calculated and discussed by comparing our experimental results with the classic theoretical models. The mechanisms of thermal conductivity and viscosity about nanofluids were also discussed in detail.

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Section: Introductionmentioning

confidence: 99%

Intriguingly high thermal conductivity increment for CuO nanowires contained nanofluids with low viscosity

Zhu

Wang

et al. 2018

Sci Rep

134

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“…The synthesis of transitional metal oxide nanostructures with controlled morphology and texture has attracted a great deal of interest in the field of nanotechnology. [19][20][21] In particular, copper oxide (CuO), an important p-type transition metal oxide semiconductor with a narrow band gap (E g = 1.2 eV) and an unconventional band structure has received much attention due to its various applications in different fields of solar energy cells, 22,23 electronics, 24,25 gas sensing, 26,27 bio-sensing, [28][29][30] heterogeneous organic catalysis, [31][32][33] lithium-ion electrode materials, 34,35 super conductors 36 and so on. Therefore, the synthesis of nanostructured CuO has attracted considerable attention in recent years.…”

Section: Introductionmentioning

confidence: 99%

Porous CuO nanostructure as a reusable catalyst for oxidative degradation of organic water pollutants

Deka

Bharali

2016

New J. Chem.

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“…Among the Cu oxide‐based materials, copper (II) oxide is a versatile one with an unconventional band structure of narrow band gap energy of 1.2 eV ,. Moreover, synthesis of CuO nanostructure has received significant attention due to its various potential applications in the field of heterogeneous catalysis …”

Section: Cu Oxide‐based Nanoparticle Catalystsmentioning

confidence: 99%

Cu‐Based Nanoparticles as Emerging Environmental Catalysts

Deka

Borah

Saikia

et al. 2018

The Chemical Record

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This account provides an overview of current research activities on nanoparticles containing the earth-abundant and inexpensive element copper (Cu) and Cu-based nanoparticles, especially in the field of environmental catalysis. The different synthetic strategies with possible modification of the chemical/ physical properties of these nanoparticles using such strategies and/or conditions to improve catalytic activity are presented. The design and development of support and/or bimetallic systems (e. g., alloys, intermetallic, etc.) are also included. Herein, we report synthetic approaches of Cu and Cu-based nanoparticles (monometallic copper, bimetallic copper and copper (II) oxide nanoparticles/nanostructures) and impregnation of such nanoparticles onto support material (e. g., Co O nanostructure), along with their applications as environmental catalyst for various oxidation and reduction reactions. Finally, this account provides necessary advances and perspectives of Cu-based nanoparticles in the environmental catalysis.

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Synthesis of hierarchical copper oxide composites prepared via electrical explosion of the wire in liquids method

Cited by 16 publications

References 37 publications

Intriguingly high thermal conductivity increment for CuO nanowires contained nanofluids with low viscosity

Intriguingly high thermal conductivity increment for CuO nanowires contained nanofluids with low viscosity

Porous CuO nanostructure as a reusable catalyst for oxidative degradation of organic water pollutants

Cu‐Based Nanoparticles as Emerging Environmental Catalysts

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