Phosphorus Doping in Co9S8/Ni3S2 Hollow Nanorods for Supercapacitors

被引:1
作者
Cui, Shuangxing [1 ]
Wu, Lei [1 ]
Lu, Xintong [1 ]
Li, Guochang [1 ]
Xiao, Xunwen [2 ]
Han, Lei [1 ]
机构
[1] Ningbo Univ, Sch Mat Sci & Chem Engn, State Key Lab Base Novel Funct Mat & Preparat Sci, Ningbo 315211, Zhejiang, Peoples R China
[2] Ningbo Univ Technol, Coll Mat Sci & Chem Engn, Ningbo 315211, Zhejiang, Peoples R China
基金
中国国家自然科学基金;
关键词
supercapacitors; P doping; Co9S8/Ni3S2; surface reconstruction; hollow tube;
D O I
10.1021/acsanm.4c06617
中图分类号
TB3 [工程材料学];
学科分类号
0805 ; 080502 ;
摘要
Metal sulfides, characterized by high crystalline stability and narrowed band gap, are recognized as effective electrode materials for energy storage in alkaline environments. This study enhances the surface activity in Co9S8/Ni3S2 hollow nanorod arrays by incorporating phosphorus (P) doping. In situ Raman spectroscopy confirms that P doping facilitates rapid surface reconstruction in alkaline media, resulting in substantial amounts of oxyhydroxides that significantly enhance the energy density of supercapacitors. The optimized P-Co9S8/Ni3S2 (1 h) electrode demonstrates a 4.56-fold increase in performance over the original Co9S8/Ni3S2, achieving a capacitance of 20.5 F<middle dot>cm(-2) at 3 mA<middle dot>cm(-2) in 2 M KOH. The hybrid supercapacitor device assembled with activated carbon achieves an energy density of 1.73 mWh cm(-2) at a power density of 4.95 mW cm(-2), showcasing a high cycling life with 84.6% capacity retention after 10,000 cycles. This work effectively reconstructs the activity of oxyhydroxide species on Co9S8/Ni3S2 electrodes in alkaline environments through P doping engineering, providing valuable guidance for the design of in situ reconstructions of metal sulfide electrodes using P atom doping engineering.
引用
收藏
页码:1617 / 1627
页数:11
相关论文
共 50 条
[21]   Graphene-templated growth of hollow Ni3S2 nanoparticles with enhanced pseudocapacitive performance [J].
Ou, Xuewu ;
Gan, Lin ;
Luo, Zhengtang .
JOURNAL OF MATERIALS CHEMISTRY A, 2014, 2 (45) :19214-19220
[22]   Construction of NiCo2S4/Ni3S2 nanoarrays on Ni foam substrate as an enhanced electrode for hydrogen evolution reaction and supercapacitors [J].
Xu, Xiaobing ;
Liu, Qiang ;
Zhong, Wei ;
Zhang, Lei ;
Lu, Yuzheng ;
Du, Youwei .
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY, 2021, 46 (79) :39226-39235
[23]   One-pot synthesis of hierarchically nanostructured Ni3S2 dendrites as active materials for supercapacitors [J].
Zhang, Zhen ;
Huang, Zongyu ;
Ren, Long ;
Shen, Yongzhen ;
Qi, Xiang ;
Zhong, Jianxin .
ELECTROCHIMICA ACTA, 2014, 149 :316-323
[24]   Construction of 3D Co/Co9S8 encapsulated by graphite carbon for high performance supercapacitor [J].
Gao, Jiang-shan ;
Zhang, Ziming ;
Wang, Huanhuan ;
Liu, Zhiming ;
He, Yan .
JOURNAL OF ELECTROANALYTICAL CHEMISTRY, 2022, 921
[25]   A facile one-step route to RGO/Ni3S2 for high-performance supercapacitors [J].
Zhang, Zhuomin ;
Zhao, Chongjun ;
Min, Shudi ;
Qian, Xiuzhen .
ELECTROCHIMICA ACTA, 2014, 144 :100-110
[26]   Vertically Aligned Co9S8 Nanotube Arrays onto Graphene Papers as High-Performance Flexible Electrodes for Supercapacitors [J].
Xiong, Dongbin ;
Li, Xifei ;
Bai, Zhimin ;
Li, Jianwei ;
Han, Yan ;
Li, Dejun .
CHEMISTRY-A EUROPEAN JOURNAL, 2018, 24 (10) :2339-2343
[27]   Electrochemical activation of Co-doped Ni3S2 for boosting the supercapacitance performance [J].
Zhang, Can ;
Liu, Yange ;
Wang, Guangjin ;
Zhao, Chunwang ;
Hong, Xiaodong .
SURFACES AND INTERFACES, 2025, 56
[28]   Core-Shell Electrode Material Co9S8@Ni(OH)2 for High-Performance Supercapacitors [J].
Wang, Jian ;
Li, Yucai ;
Song, Shiwei .
SCIENCE OF ADVANCED MATERIALS, 2023, 15 (10) :1318-1322
[29]   A general and controllable synthesis of ComSn (Co9S8, Co3S4, and Co1-xS) hierarchical microspheres with homogeneous phases [J].
Liu, Qiao ;
Zhang, Junyan .
CRYSTENGCOMM, 2013, 15 (25) :5087-5092
[30]   Ni0.96S/NiS/Ni3S2 coated three-dimensional graphene composite for high energy storage and capacitance retention supercapacitors [J].
Li, Yongming ;
Zhai, Yunpeng ;
Yan, Xiaorui ;
Xia, Changkun ;
Xie, Jimin ;
Li, Xiang ;
Chen, Min ;
Xu, Yuanguo .
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 2022, 651