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Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors

หน่วยงาน Nanyang Technological University, Singapore

รายละเอียด

ชื่อเรื่อง : Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors
นักวิจัย : Sun, Chencheng , Ma, Mingze , Yang, Jun , Zhang, Yufei , Chen, Peng , Huang, Wei , Dong, Xiaochen
คำค้น : DRNTU::Science::Medicine::Biomedical engineering
หน่วยงาน : Nanyang Technological University, Singapore
ผู้ร่วมงาน : -
ปีพิมพ์ : 2557
อ้างอิง : Sun, C., Ma, M., Yang, J., Zhang, Y., Chen, P., Huang, W., et al (2014). Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors. Scientific reports, 4. , 2045-2322 , http://hdl.handle.net/10220/25230 , http://dx.doi.org/10.1038/srep07054
ที่มา : -
ความเชี่ยวชาญ : -
ความสัมพันธ์ : Scientific reports
ขอบเขตของเนื้อหา : -
บทคัดย่อ/คำอธิบาย :

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.

บรรณานุกรม :
Sun, Chencheng , Ma, Mingze , Yang, Jun , Zhang, Yufei , Chen, Peng , Huang, Wei , Dong, Xiaochen . (2557). Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors.
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Sun, Chencheng , Ma, Mingze , Yang, Jun , Zhang, Yufei , Chen, Peng , Huang, Wei , Dong, Xiaochen . 2557. "Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors".
    กรุงเทพมหานคร : Nanyang Technological University, Singapore.
Sun, Chencheng , Ma, Mingze , Yang, Jun , Zhang, Yufei , Chen, Peng , Huang, Wei , Dong, Xiaochen . "Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors."
    กรุงเทพมหานคร : Nanyang Technological University, Singapore, 2557. Print.
Sun, Chencheng , Ma, Mingze , Yang, Jun , Zhang, Yufei , Chen, Peng , Huang, Wei , Dong, Xiaochen . Phase-controlled synthesis of α-NiS nanoparticles confined in carbon nanorods for high performance supercapacitors. กรุงเทพมหานคร : Nanyang Technological University, Singapore; 2557.