In-Situ Source–Template–Interface Reaction Route to Semiconductor CdS Submicrometer Hollow Spheres

Huang, Junhua; Xie, Yurong; Li, B.; Liu, Y.; Qian, Yunyi; Zhang, S.

doi:10.1002/(sici)1521-4095(200006)12:11<808::aid-adma808>3.3.co;2-g

Cited by 92 publications

(112 citation statements)

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“…41 In the emulsion, the "Baeyer test for unsaturation" reaction quickly occurs between KMnO 4 and oleic acid at the O/W interface and produces K x MnO 2 nuclei there (process b). 42 At low KMnO 4 concentrations, small amounts of lamellar K x MnO 2 platelets are produced, and thus an unstable shell of loosely packed platelets is formed (process c). Removal of oleic acid and formed cis-diol by ethanol results in collapse of the shell, giving honeycomb nanospheres (process d).…”

Section: Crystalline Structures and Elemental Analysesmentioning

confidence: 99%

Self-Assembly of Novel Mesoporous Manganese Oxide Nanostructures and Their Application in Oxidative Decomposition of Formaldehyde

et al. 2007

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Monodisperse manganese oxide honeycomb and hollow nanospheres have been prepared facilely at room temperature by varying the molar ratio of KMnO 4 and oleic acid. These new nanomaterials were characterized by XRD, SEM, EDS, TEM, and BET measurements. They had robust nanostructures and were stable even after ultrasonic treatment (40 kHz, 120 W) for 30 min. A plausible mechanism of the formation of manganese oxide nanostructures was proposed. The manganese oxide nanomaterials showed high catalytic activities for oxidative decomposition of formaldehyde at low temperatures. Complete conversion of formaldehyde to CO 2 and H 2 O could be achieved, and harmful byproducts were not detected in effluent gases. The catalytic activity of manganese oxide hollow nanospheres was much higher than that of honeycomb nanospheres, although the surface area of the latter was nearly 2 times as high as that of the former. The mechanism of such morphologydependent catalytic activity was discussed in detail. The catalytic activities of the obtained manganese oxide nanospheres were also significantly higher than those of previously reported manganese oxide octahedral molecular sieve (OMS-2) nanorods, MnO x powders, and alumina-supported manganese-palladium oxide catalysts. Potential applications and future research efforts were proposed.

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Section: Crystalline Structures and Elemental Analysesmentioning

confidence: 99%

Self-Assembly of Novel Mesoporous Manganese Oxide Nanostructures and Their Application in Oxidative Decomposition of Formaldehyde

et al. 2007

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“…By an unusual in-situ source-templateinterface method, in which CdCl 2 reacted with H 2 S, generated by adding CS 2 to an aqueous en solution, forming CdS on the CS 2 -water interface, hollow spheres [138] and a novel peanut-like structures of CdS [139] were prepared (Figure 7.33) under mild conditions. Some other nanocrystallites with different morphologies were also prepared by room-temperature processes, such as a novel non-layered compound Cu 2Àx Se nanotubes (Figure 7.34), CuE and AgE (E ¼ Se or Te) nanocrystallites (nanotubes, nanorods and nanoparticles) [140], rod-like nanocrystalline Ag 2 Te (30 nm Â 120 nm, Figure 7.35) [144], and spherical nanoparticles of Ag 2 Se (@25 nm) [142].…”

Section: 7mentioning

confidence: 99%

Solvothermal Synthesis of Non‐Oxide Nanomaterials

Qian

2004

The Chemistry of Nanomaterials

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“…Although great efforts have been made and some successes have been achieved, the synthesis of NiCo 2 S 4 hollow spheres in a controlled way remains a significant challenge. The interface between oil and water was proved to possess some special functions and has been applied to preparation of hollow spheres such as CdS, TiO 2 /CdS, NiS, and CuS [19][20][21]. However, to the best of our knowledge, no work has been reported on the synthesis of ternary nickel cobalt sulfide (NiCo 2 S 4 ) hollow spheres by oil/water (O/W) interface reaction.…”

Section: Introductionmentioning

confidence: 99%

O/W interface-assisted hydrothermal synthesis of NiCo2S4 hollow spheres for high-performance supercapacitors

Wang

et al. 2016

Colloid Polym Sci

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The NiCo 2 S 4 hollow spheres were prepared by an oil/water (O/W) interface-assisted hydrothermal process using CoCl 2 · 6H 2 O, NiCl 2 · 6H 2 O, ethanediamine, and carbon disulfide (CS 2 ) as raw materials. Powder X-ray diffraction (XRD), UV-Vis absorption spectrum, transmission electron microscopy (TEM), high-resolution TEM (HRTEM), selected area electron diffraction (SAED), energy dispersive spectrometry (EDS), N 2 adsorption-desorption isotherm, and X-ray photoelectron spectroscopy (XPS) were measured to characterize the morphology and microstructure of the prepared NiCo 2 S 4 hollow spheres. When applied as the electrode material for supercapacitor, the NiCo 2 S 4 hollow spheres show outstanding performances. The specific capacitance of the NiCo 2 S 4 hollow spheres is 1753.2 F/g at a current density of 1 A/g. Of the capacity, 77.8 % were retained when the current density increased from 1 to 10 A/g. At a current density of 3 A/g, the specific capacitance of the NiCo 2 S 4 hollow sphere electrode is about 1350.5 F/g after suffering 1000 continuous cycles. The supercapacitor possesses high energy density of 39.0 Wh/kg at a power density of 200 W/kg. The as-prepared NiCo 2 S 4 hollow sphere electrode exhibits high specific capacitance, rate capacity, energy density, and good cycle stability, making it a promising electrode material for high-performance supercapacitors.

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In-Situ Source–Template–Interface Reaction Route to Semiconductor CdS Submicrometer Hollow Spheres

Cited by 92 publications

References 0 publications

Self-Assembly of Novel Mesoporous Manganese Oxide Nanostructures and Their Application in Oxidative Decomposition of Formaldehyde

Self-Assembly of Novel Mesoporous Manganese Oxide Nanostructures and Their Application in Oxidative Decomposition of Formaldehyde

Solvothermal Synthesis of Non‐Oxide Nanomaterials

O/W interface-assisted hydrothermal synthesis of NiCo2S4 hollow spheres for high-performance supercapacitors

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