One-step solid-state synthesis of NixPy @C nanocomposites for high-performance hybrid supercapacitor

doi:10.1016/j.jallcom.2022.166289

CORC > 兰州理工大学 > 兰州理工大学 > 石油化工学院

	One-step solid-state synthesis of NixPy @C nanocomposites for high-performance hybrid supercapacitor
	Tang, Xingchang 2,3; Gao, Shiyao 1,2; Zhang, Deyi 1,2; Xia, Xu 1; Wang, Jingruo 1; She, Wenna 1; Yang, Biao 1; Meng, Xianxin 1; Wang, Kunjie 1; Han, Zhiyong 1
刊名	Journal of Alloys and Compounds
	2022-11-25
卷号	923
关键词	Carbon Nickel compounds Phosphorus compounds Porous materials Supercapacitor Synthesis (chemical) Transition metals Electrochemical energy storage devices Hybrid supercapacitors Liquid-phase synthesis Performance Solid phase synthesis Solid-state synthesis Specific power Synthesis method Synthesised Transition metal phosphide
ISSN号	0925-8388
DOI	10.1016/j.jallcom.2022.166289
英文摘要	Transition metal phosphides and their composites are very attractive ascribing to their prominent performance in electrochemical energy storage devices, which are generally prepared by cumbersome and time-consuming liquid-phase synthesis methods. In this work, a convenient and efficient one-step solid-phase synthesis method (SPS) is successfully developed for the preparation of NixPy @C nanocomposites under the ambient atmosphere. By controlling the synthesizing temperature, carbon-coated Ni2P, Ni5P4, and NiP2 nanocomposites can be facilely synthesized. The solid-phase synthesized NixPy @C nanocomposites exhibit high charge storage capability and good cycle stability. A high specific capacity of over 197.2 mAh g−1 (709.9 C g−1) is achieved at a current density of 1 A g−1 for the optimal nanocomposite NiP2 @C, and more than 84.3% of initial specific capacitance is kept after 1000 cycles. The assembled hybrid supercapacitor device based on the nanocomposite NiP2 @C and an interconnected hierarchical porous carbon (NiP2 @C//IHPC) delivers specific energy of up to 50.38 Wh kg−1 at the specific power of 0.89 kW kg−1, which value still reaches 29.1 Wh kg−1 at a high specific power of 9.44 kW kg−1. More than 83.8% of initial specific capacity is retained after 20,000 cycles. Compared with the other nickel-based phosphides and their composites prepared by other methods, the prepared NixPy @C nanocomposites by the developed one-step SPS method demonstrate very competitive performance with the distinguished merits of convenient, efficient, target-oriented, cost-efficiency, and eco-friendly. The successfully developed solid-phase synthesis method is proved to be a reliable strategy for facile preparation of TMPs with high performance. © 2022
WOS研究方向	Chemistry ; Materials Science ; Metallurgy & Metallurgical Engineering
语种	英语
出版者	Elsevier Ltd
WOS记录号	WOS:000841961000002
内容类型	期刊论文
源URL	[http://ir.lut.edu.cn/handle/2XXMBERH/159743]
专题	石油化工学院省部共建有色金属先进加工与再利用国家重点实验室
作者单位	1.College of Petrochemical Technology, Lanzhou University of Technology, Lanzhou; 730050, China 2.College of Materials Science and Engineering, Lanzhou University of Technology, Lanzhou; 730050, China; 3.State Key Laboratory of Advanced Processing and Recycling of Nonferrous Metals, Lanzhou University of Technology, Lanzhou; 730050, China;
推荐引用方式 GB/T 7714	Tang, Xingchang,Gao, Shiyao,Zhang, Deyi,et al. One-step solid-state synthesis of NixPy @C nanocomposites for high-performance hybrid supercapacitor[J]. Journal of Alloys and Compounds,2022,923.
APA	Tang, Xingchang.,Gao, Shiyao.,Zhang, Deyi.,Xia, Xu.,Wang, Jingruo.,...&Wang, Bing.(2022).One-step solid-state synthesis of NixPy @C nanocomposites for high-performance hybrid supercapacitor.Journal of Alloys and Compounds,923.
MLA	Tang, Xingchang,et al."One-step solid-state synthesis of NixPy @C nanocomposites for high-performance hybrid supercapacitor".Journal of Alloys and Compounds 923(2022).