期刊
DALTON TRANSACTIONS
卷 47, 期 45, 页码 16320-16328出版社
ROYAL SOC CHEMISTRY
DOI: 10.1039/c8dt03755h
关键词
-
资金
- National Key R&D Program of China [2016YFB0401501]
- National Natural Science Foundation of China [51772267]
- Key R&D Program of Zhejiang Province [2018C01042]
Transition metal phosphides (TMPs) represent an important class of compounds with metalloid characteristics and good electrical conductivity, which are of great benefit to enhance electrochemical performances. Thus it is important to clarify the correlation between the electrochemical properties and the phosphating degree of the precursor. Herein, we report a superior electrode for battery-like capacitors based on NiCo2O4/NiCoP hetero-structure nanoflake-nanowire arrays grown on nickel foams using a one-pot facile hydrothermal approach and a controllable phosphorization treatment method. The Ni-Co precursor nanoflake-nanowire array based electrode treated with 500 mg NaH2PO2 shows significantly improved electrochemical performances with an ultrahigh specific capacitance of 2288.8 F g(-1) and 1644 F g(-1) at a current density of 1 A g(-1) and 20 A g(-1), respectively. The electrode also shows superior cycling stability. In addition, the NiCo2O4/NiCoP//AC device exhibits a relatively high energy density of 35.5 W h kg(-1) at 750.4 W kg(-1). The results suggest that this NiCo2O4/NiCoP nanoflake-nanowire array is a promising electrode material for high performance hybrid supercapacitor applications.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据