Template-free synthesis of rectangular mesoporous carbon nanorods and their application as a support for Pt electrocatalysts

Zhu, Lihua; Wang, Guang; Guo, Liping

doi:10.1039/c2jm16170b

Cited by 31 publications

(12 citation statements)

References 56 publications

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“…As similar to the previous report 39 , typically, 0.278 g dimethylglyoxime was dispersed in 24 mL ethanol and the PH value was adjusted to 13.0 by dropping 0.5 mol/L NaOH in ethanol. 0.284 g NiCl 2 was dispersed in 800 mL distilled water.…”

Section: Methodsmentioning

confidence: 87%

Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for High Performance Supercapacitors

Sun

Yang

et al. 2014

Sci Rep

111

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A facile and phase-controlled synthesis of α-NiS nanoparticles (NPs) embedded in carbon nanorods (CRs) is reported by in-situ sulfurating the preformed Ni/CRs. The nanopore confinement by the carbon matrix is essential for the formation of α-NiS and preventing its transition to β-phase, which is in strong contrast to large aggregated β-NiS particles grown freely without the confinement of CRs. When used as electrochemical electrode, the hybrid electrochemical charge storage of the ultrasmall α-NiS nanoparticels dispersed in CRs is benefit for the high capacitor (1092, 946, 835, 740 F g−1 at current densities of 1, 2, 5, 10 A g−1, respectively.). While the high electrochemical stability (approximately 100% retention of specific capacitance after 2000 charge/discharge cycles) is attributed to the supercapacitor-battery electrode, which makes synergistic effect of capacitor (CRs) and battery (NiS NPs) components rather than a merely additive composite. This work not only suggests a general approach for phase-controlled synthesis of nickel sulfide but also opens the door to the rational design and fabrication of novel nickel-based/carbon hybrid supercapacitor-battery electrode materials.

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Section: Methodsmentioning

confidence: 87%

Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for High Performance Supercapacitors

Sun

Yang

et al. 2014

Sci Rep

111

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“…The Ni/C nanorod was synthesized according to the method reported in a previous study in the literature. 26 In a typical experiment, 0.28 g of dimethylglyoxime was dissolved in 24 ml of ethanol. The pH value of the resulting solution was adjusted to 13 with 0.5 M NaOH.…”

Section: Preparation Of Ni/c Nanorodmentioning

confidence: 99%

Carbon@NiCo₂S₄ nanorods: an excellent electrode material for supercapacitors

Dai

Zhang

et al. 2015

RSC Adv.

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“…The obtained red solution was ltrated and a red sediment was obtained. 29 The red sediment was carbonized in argon atmosphere at 350 C for 0.5 h and the Ni@C complex was obtained. The weight percentage of Ni in the Ni@C complex is calculated to be 53%, according to the molecular weight of dimethylglyoxime.…”

Section: Experimental Methodsmentioning

confidence: 99%

“…This phenomenon may be attributed to the fact that the onedimensional rod-like carbon network can enhance the kinetics of ions as well as electron transport both inside the electrodes and at the electrode/electrolyte interface. 29 In addition, multiple oxidation states provided by the binary oxide and synergistic effects offered by the carbonous material and polytype metal oxides are other key factors. 36 Fig.…”

Section: Electrochemical Propertiesmentioning

confidence: 99%

In situ synthesis of Ni_xCo_yO_z–C composites with rod-like Ni@C as support for potential application in supercapacitors

Zhan

Sun

et al. 2014

RSC Adv.

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A novel Ni x Co y O z -C composite has been synthesized by a one pot in situ hydrothermal method with rodlike Ni@C (Ni nanoparticles wrapped by C) as support. The structure and morphology of the composites are characterized by X-ray diffraction, field emission scanning electron microscopy, and transmission electron microscopy. As supercapacitor electrodes, the as-prepared composites present good electrochemical performance with a high specific capacitance (975 F g À1 at the current density of 1.0 A g À1 ) and good cycling stability (79% of capacitance still maintained after 1000 cycles). The electrochemical performance is mainly due to the active redox reaction provided by the polytype metal oxide and the faster electron transfer supplied by the conductive carbon support. These results indicate that Ni x Co y O z -C composites have promising applications as supercapacitor electrode materials.

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Template-free synthesis of rectangular mesoporous carbon nanorods and their application as a support for Pt electrocatalysts

Cited by 31 publications

References 56 publications

Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for High Performance Supercapacitors

Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for High Performance Supercapacitors

Carbon@NiCo₂S₄ nanorods: an excellent electrode material for supercapacitors

In situ synthesis of Ni_xCo_yO_z–C composites with rod-like Ni@C as support for potential application in supercapacitors

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Template-free synthesis of rectangular mesoporous carbon nanorods and their application as a support for Pt electrocatalysts

Cited by 31 publications

References 56 publications

Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for High Performance Supercapacitors

Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for High Performance Supercapacitors

Carbon@NiCo2S4 nanorods: an excellent electrode material for supercapacitors

In situ synthesis of NixCoyOz–C composites with rod-like Ni@C as support for potential application in supercapacitors

Contact Info

Product

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Carbon@NiCo₂S₄ nanorods: an excellent electrode material for supercapacitors

In situ synthesis of Ni_xCo_yO_z–C composites with rod-like Ni@C as support for potential application in supercapacitors