Bimetallic MnCo alloy nanoparticles decorated boron-doped carbon nanotubes as an active and durable electrode for supercapacitor

doi:10.1016/j.micromeso.2020.110535

CORC > 宁波材料技术与工程研究所 > 中国科学院宁波材料技术与工程研究所 > 2020专题

	Bimetallic MnCo alloy nanoparticles decorated boron-doped carbon nanotubes as an active and durable electrode for supercapacitor
	Li, Yujin; Shang, Xueni; Song, Cuimeng; Chen, Jinchao; Li, Yun; Huang, Min; Meng, Fanbin
刊名	MICROPOROUS AND MESOPOROUS MATERIALS
	2020
卷号	309
关键词	METAL-FREE ELECTROCATALYSTS POROUS CARBON GRAPHENE NANOSHEETS FACILE SYNTHESIS NITROGEN NANOFIBERS REDUCTION COMPOSITE ACTIVATION STRATEGY
DOI	10.1016/j.micromeso.2020.110535
英文摘要	The demand for low-cost and high-performance energy storage supercapacitors is continuously promoting as a result of the rapid development of portable electric vehicles and electronic devices. Here, a high-performance MnCo alloy nanoparticles decorated boron-doped carbon nanotubes (MnCo-B/CNTs) electrode was obtained by a facile heteroatom hydrothermal and subsequent liquid-phase reduction methods, which yields improved performance for supercapacitor. In this process, boron doping led to extra oxygen graft into carbon surface, leading to the improved durability and wettability of the fabricated carbon-based electrodes, which presented both increased capacitances and rate capability due to electrolyte ion penetration and interactions with carbon surface. In addition, boron doping led to smaller size and higher dispersion of MnCo nanoparticles, facilitating more metallic alloy and new electroactive sites formation and promoting supercapacitive activity, which was attributed to increased MnCo alloy nucleation rate with boron-doped, electron donation from boron to alloy, and extra chemisorption sites. The constructed electrode exhibited all-round performance improvements of specific capacitance (1175 F g(-1) at 0.5 A g(-1)) and capacitance retention (94.48% at a current density of 20 A g(-1) after 5000 cycles), providing a novel insight for designing high performance supercapacitors.
学科主题	Chemistry ; Science & Technology - Other Topics ; Materials Science
内容类型	期刊论文
源URL	[http://ir.nimte.ac.cn/handle/174433/20293]
专题	2020专题
作者单位	Meng, FB (corresponding author), 29 Guangrong Dao, Tianjin 300130, Peoples R China.
推荐引用方式 GB/T 7714	Li, Yujin,Shang, Xueni,Song, Cuimeng,et al. Bimetallic MnCo alloy nanoparticles decorated boron-doped carbon nanotubes as an active and durable electrode for supercapacitor[J]. MICROPOROUS AND MESOPOROUS MATERIALS,2020,309.
APA	Li, Yujin.,Shang, Xueni.,Song, Cuimeng.,Chen, Jinchao.,Li, Yun.,...&Meng, Fanbin.(2020).Bimetallic MnCo alloy nanoparticles decorated boron-doped carbon nanotubes as an active and durable electrode for supercapacitor.MICROPOROUS AND MESOPOROUS MATERIALS,309.
MLA	Li, Yujin,et al."Bimetallic MnCo alloy nanoparticles decorated boron-doped carbon nanotubes as an active and durable electrode for supercapacitor".MICROPOROUS AND MESOPOROUS MATERIALS 309(2020).