Flexible free-standing Ni-Mn oxide antenna decorated CNT/nanofiber membrane for high-volumetric capacitance supercapacitors

被引:21
作者
Fernando, Niranjala [1 ]
Chinnappan, Amutha [2 ]
Aziz, Atif [3 ]
Abdelkader, Amr [1 ]
Ramakrishna, Seeram [2 ]
Welland, Mark E. [3 ]
机构
[1] Bournemouth Univ, Fac Sci & Technol, Poole House,Talbot Campus, Poole BH12 5BB, Dorset, England
[2] Natl Univ Singapore, Dept Mech Engn, Singapore 117575, Singapore
[3] Univ Cambridge, Dept Engn, Nanosci Ctr, Cambridge CB3 0FF, England
关键词
CARBON NANOFIBER ELECTRODES; ELECTROCHEMICAL PROPERTIES; HYDROTHERMAL SYNTHESIS; NEGATIVE ELECTRODE; FACILE SYNTHESIS; CHARGE STORAGE; POROUS MN3O4; AT-NIO; PERFORMANCE; HYBRID;
D O I
10.1039/d1nr03700e
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
There is growing demand for lightweight flexible supercapacitors with high electrochemical performance for wearable and portable electronics. Here, we spun nanoparticles of nickel-manganese oxides along with carbon nanotubes into carbon nanofibers and engineered a 3D networked Ni-Mn oxides/CNT@CNF free-standing membrane for flexible supercapacitor applications. The electrospinning process controlled the nanoparticle aggregation while subsequent heat treatment generates nanochannels in the fibres, resulting in a very porous tubular nanocomposite structure. The preparation process also enabled good interfacial contact between the nanoparticles and the conductive carbon network. The resulting Ni-Mn oxides/CNT@CNF membrane displays high mass loading (Ni-Mn oxides) of 855 mg cm(-3) and low CNT incorporation of similar to 0.4%. The outstanding porous structure, synergy of the carbon with Ni-Mn oxides, and fast and facile faradaic reactions on the electrode were responsible for the superior volumetric capacitance of 250 F cm(-3) at 1 A cm(-3), energy density as high as 22 mW h cm(-3) and an excellent power density of 12 W cm(-3). Despite the low CNT loading, the hybrid electrode exhibits excellent cycling performance with capacitance retention of 96.4% after 10 000 cycles evidencing a well-preserved Ni-manganese oxide nanostructure throughout the cycling. The resulting outstanding electrochemical performances of the Ni-Mn oxides/CNT@CNF synergic system offer new insights into effective utilization of transition metal oxides for establishing high-performance flexible supercapacitors within a confined volume.
引用
收藏
页码:19038 / 19048
页数:11
相关论文
共 75 条
  • [1] Controlled electrochemical doping of graphene-based 3D nanoarchitecture electrodes for supercapacitors and capacitive deionisation
    Abdelkader, A. M.
    Fray, D. J.
    [J]. NANOSCALE, 2017, 9 (38) : 14548 - 14557
  • [2] Ultraflexible and robust graphene supercapacitors printed on textiles for wearable electronics applications
    Abdelkader, Amr M.
    Karim, Nazmul
    Valles, Cristina
    Afroj, Shaila
    Novoselov, Kostya S.
    Yeates, Stephen G.
    [J]. 2D MATERIALS, 2017, 4 (03):
  • [3] Electrochemical synthesis of highly corrugated graphene sheets for high performance supercapacitors
    Abdelkader, Amr M.
    [J]. JOURNAL OF MATERIALS CHEMISTRY A, 2015, 3 (16) : 8519 - 8525
  • [4] Highly Conductive, Scalable, and Machine Washable Graphene-Based E-Textiles for Multifunctional Wearable Electronic Applications
    Afroj, Shaila
    Tan, Sirui
    Abdelkader, Amr M.
    Novoselov, Kostya S.
    Karim, Nazmul
    [J]. ADVANCED FUNCTIONAL MATERIALS, 2020, 30 (23)
  • [5] Electrospun carbon nanofiber-carbon nanotubes coated polyaniline composites with improved electrochemical properties for supercapacitors
    Agyemang, Frank Ofori
    Tomboc, Gracita M.
    Kwofie, Samuel
    Kim, Hern
    [J]. ELECTROCHIMICA ACTA, 2018, 259 : 1110 - 1119
  • [6] Highly active, durable and pH-universal hybrid oxide nanocrystals for efficient oxygen evolution
    Ahmad, Yahia H.
    Eid, Kamel A.
    AlQaradawi, Siham Y.
    Allam, Nageh K.
    [J]. SUSTAINABLE ENERGY & FUELS, 2017, 1 (05): : 1123 - 1129
  • [7] Enhanced supercapacitor performance by incorporating nickel in manganese oxide
    Ahuja, Preety
    Ujjain, Sanjeev Kumar
    Sharma, Raj Kishore
    Singh, Gurmeet
    [J]. RSC ADVANCES, 2014, 4 (100): : 57192 - 57199
  • [8] 3D hybrid Ni-Multiwall carbon nanotubes/carbon nanofibers for detecting sarin nerve agent at room temperature
    Alali, Khaled Tawfik
    Liu, Jingyuan
    Aljebawi, Kassem
    Liu, Qi
    Chen, Rongrong
    Yu, Jing
    Zhang, Milin
    Wang, Jun
    [J]. JOURNAL OF ALLOYS AND COMPOUNDS, 2019, 780 : 680 - 689
  • [9] Resolving surface chemical states in XPS analysis of first row transition metals, oxides and hydroxides: Cr, Mn, Fe, Co and Ni
    Biesinger, Mark C.
    Payne, Brad P.
    Grosvenor, Andrew P.
    Lau, Leo W. M.
    Gerson, Andrea R.
    Smart, Roger St. C.
    [J]. APPLIED SURFACE SCIENCE, 2011, 257 (07) : 2717 - 2730
  • [10] High-Performance Supercapacitors Based on Intertwined CNT/V2O5 Nanowire Nanocomposites
    Chen, Zheng
    Augustyn, Veronica
    Wen, Jing
    Zhang, Yuewei
    Shen, Meiqing
    Dunn, Bruce
    Lu, Yunfeng
    [J]. ADVANCED MATERIALS, 2011, 23 (06) : 791 - +