Hexagonal nanoplatelets of CuSe synthesized through facile solution phase reaction

Vinod, T. P.; Jin, Xing; Kim, Jinkwon

doi:10.1016/j.materresbull.2010.12.017

Cited by 47 publications

(33 citation statements)

References 20 publications

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“…There are several crystal structures (monoclinic, cubic, tetragonal, hexagonal, etc [10]) corresponding to these compositions. Many researches were focused on the synthesis methods such as solvothermal method [11], electrochemical technology [12,13], colloidal synthesis [14], solution phase reaction [15], chemical bath deposition [16,17] and pulsed laser deposition [18]. Recently, it is recognized that the size and shape of the semiconductor nanocrystals play important roles on their properties.…”

Section: Introductionmentioning

confidence: 99%

Simultaneous phase and morphology controllable synthesis of copper selenide films by microwave-assisted nonaqueous approach

Wang

et al. 2013

Solid State Sciences

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Section: Introductionmentioning

confidence: 99%

Simultaneous phase and morphology controllable synthesis of copper selenide films by microwave-assisted nonaqueous approach

Wang

et al. 2013

Solid State Sciences

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“…The weight loss of ZIF‐8 and CuSe in the range of 100–200 °C was due to the vaporization of surface water. [14,17a] The oxidation of CuSe only occurred when temperature was higher than 350 °C. These justified the candidature of 0.8NC‐ZIF with decent thermal stability in future real‐world application.…”

Section: Resultsmentioning

confidence: 99%

“…Compared with elemental Se, most of the metal selenide contains Se 2− with lower binding energy like As 2 Se 3 , CdSe, CuSe, CrSe, CoSe, etc . Among these metal selenides, CuSe exhibited the lowest binding energy value for Se 2− , which indicates that it can be activated in low‐temperature range where it is hard for HgSe to decompose.…”

Section: Introductionmentioning

confidence: 99%

Nanosized Copper Selenide Functionalized Zeolitic Imidazolate Framework‐8 (CuSe/ZIF‐8) for Efficient Immobilization of Gas‐Phase Elemental Mercury

Yang

et al. 2019

Adv Funct Materials

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A key challenge in elemental mercury (Hg 0 ) decontamination from flue gas lies in the design of a sorbent with abundant reactive adsorption sites that exhibit high affinity toward Hg 0 to simultaneously achieve rapid capture and large capacity. Herein, zeolitic imidazolate framework-8 (ZIF-8) supported copper selenide (CuSe) nanocomposites are synthesized by a newly designed two-step surfactant-assisted method. The as-prepared CuSe/ZIF-8 with CuSe to ZIF-8 mass ratio of 80% (0.8NC-ZIF) exhibits unparalleled performance toward Hg 0 adsorption with equilibrium capacity and average rate reaching 309.8 mg g −1 and 105.3 µg g −1 min −1 , respectively, surpassing all reported metal sulfides and traditional activated-carbon-based sorbents. The impressive performance of 0.8NC-ZIF for Hg 0 immobilization is primarily attributed to the adequate exposure of the Se-terminated sites with high affinity toward Hg 0 resulted from the layered structure of CuSe. The adsorbed mercury selenide exhibits even higher stability than the most stable natural mercury ore-that is, mercury sulfide-hence minimizing its environmental impact when the CuSe/ZIF-8 sorbent is dumped. This work provides a new mindset for future design of sorbents for efficient Hg 0 capture from industrial flue gas. The results also justify the candidature of CuSe/ZIF to be applicable for mercury pollution remediation in real-world conditions.

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“…Researchers have been recently focusing on synthesizing copper selenide nanostructures with controlled shapes and sizes in order to tune their optoelectronic properties. 1,[6][7][8][9][10][11][12][13][14][15][16][17] Copper selenides are a desirable material for photovoltaic applications because they can be easily doped with other metals to enhance their solar conversion efficiency. [18][19] In addition, recent studies have shown that copper selenide nanostructures could be useful in photothermal therapy, since these materials are both less expensive and have superior photothermal efficiencies in contrast to gold nanostructures.…”

Section: Introductionmentioning

confidence: 99%

Surface-Initiated Atom Transfer Radical Polymerization-Induced Transformation of Selenium Nanowires into Copper Selenide@Polystyrene Core–Shell Nanowires

Wang¹,

Gates

2013

ACS Appl. Mater. Interfaces

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This Article reports the first preparation of cuprous and cupric selenide nanowires coated with a ∼5 nm thick sheath of polystyrene (copper selenide@polystyrene). These hybrid nanostructures are prepared by the transformation of selenium nanowires in a one-pot reaction, which is performed under ambient conditions. The composition, purity, and crystallinity of the copper selenide@polystyrene products were assessed by scanning transmission electron microscopy, electron energy-loss spectroscopy, X-ray powder diffraction, and X-ray photoelectron spectroscopy techniques. We determined that the single crystalline selenium nanowires are converted into polycrystalline copper selenide@polystyrene nanowires containing both cuprous selenide and cupric selenide. The product is purified through the selective removal of residual, non-transformed selenium nanowires by performing thermal evaporation below the decomposition temperature of these copper selenides. Powder X-ray diffraction of the purified copper selenide nanowires@polystyrene identified the presence of hexagonal, cubic, and orthorhombic phases of copper selenide. These purified cuprous and cupric selenide@polystyrene nanowires have an indirect bandgap of 1.44 eV, as determined by UV-vis absorption spectroscopy. This new synthesis of polymer-encapsulated nanoscale materials may provide a method for preparing other complex hybrid nanostructures.

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Hexagonal nanoplatelets of CuSe synthesized through facile solution phase reaction

Cited by 47 publications

References 20 publications

Simultaneous phase and morphology controllable synthesis of copper selenide films by microwave-assisted nonaqueous approach

Simultaneous phase and morphology controllable synthesis of copper selenide films by microwave-assisted nonaqueous approach

Nanosized Copper Selenide Functionalized Zeolitic Imidazolate Framework‐8 (CuSe/ZIF‐8) for Efficient Immobilization of Gas‐Phase Elemental Mercury

Surface-Initiated Atom Transfer Radical Polymerization-Induced Transformation of Selenium Nanowires into Copper Selenide@Polystyrene Core–Shell Nanowires

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