Flower-like polyaniline–NiO structures: a high specific capacity supercapacitor electrode material with remarkable cycling stability

RSC Advances ◽  
2016 ◽  
Vol 6 (50) ◽  
pp. 43959-43963 ◽  
Author(s):  
Bangning Sun ◽  
Xinping He ◽  
Xijin Leng ◽  
Yang Jiang ◽  
Yudong Zhao ◽  
...  
Keyword(s):  
Electrode Material ◽  
Nickel Foam ◽  
Specific Capacity ◽  
Cycling Stability ◽  
Supercapacitor Electrode ◽  
High Specific Capacity ◽  
Binder Free

In this study, we report a binder-free in situ approach to synthesize a polyaniline–NiO composite on a nickel foam as a supercapacitor electrode.

In situ growth of novel nickel diselenide nanoarrays with high specific capacity as the electrode material of flexible hybrid supercapacitors

2019 ◽  
Vol 10 (5) ◽  
pp. 1591-1601 ◽  
Author(s):  
Yongpan Gu ◽  
Weimin Du ◽  
Yusuf Darrat ◽  
Mahdi Saleh ◽  
Yuxin Huang ◽  
...  
Keyword(s):  
Electrode Material ◽  
Specific Capacity ◽  
In Situ Growth ◽  
High Specific Capacity ◽  
Hybrid Supercapacitors

Co2P nanoparticles encapsulated in 3D porous N-doped carbon nanosheet networks as an anode for high-performance sodium-ion batteries

2018 ◽  
Vol 6 (5) ◽  
pp. 2139-2147 ◽  
Author(s):  
Dan Zhou ◽  
Li-Zhen Fan
Keyword(s):  
High Performance ◽  
Specific Capacity ◽  
Rate Capability ◽  
Cobalt Nitrate ◽  
Cycling Stability ◽  
Sodium Ion ◽  
Sodium Ion Batteries ◽  
High Specific Capacity

A novel Co2P-3D PNC composite with Co2P NPs encapsulated in 3D porous N-doped carbon nanosheet networks was synthesized by a cobalt nitrate-induced PVP-blowing method combined with an in situ phosphidation process. The resultant Co2P-3D PNC anode delivers high specific capacity, enhanced rate capability, and improved cycling stability.

Insight into the charging-discharging of magnetite electrodes: In situ XAS and DFT study

2021 ◽  
Author(s):  
Chandrani Nayak ◽  
Abharana N ◽  
Brindaban Modak ◽  
Kruti K Halankar ◽  
Shambhu Nath Jha ◽  
...  
Keyword(s):  
Electrode Material ◽  
Specific Capacity ◽  
Dft Study ◽  
Li Ion Batteries ◽  
Capacity Fading ◽  
High Specific Capacity ◽  
Li Ion ◽  
Insight Into ◽  
Conversion Electrode

Fe3O4 is a promising conversion electrode material for Li ion batteries with high specific capacity. However, it suffers from capacity fading with cycling which inhibits the performance of these electrodes....

Sulfur gradient-distributed CNF composite: a self-inhibiting cathode for binder-free lithium–sulfur batteries

2014 ◽  
Vol 50 (71) ◽  
pp. 10277-10280 ◽  
Author(s):  
Kun Fu ◽  
Yanpeng Li ◽  
Mahmut Dirican ◽  
Chen Chen ◽  
Yao Lu ◽  
...  
Keyword(s):  
Specific Capacity ◽  
Cycling Stability ◽  
High Specific Capacity ◽  
Lithium Sulfur Batteries ◽  
Binder Free ◽  
Lithium Sulfur

A novel sulfur gradient cathode was developed with a high specific capacity and improved cycling stability for Li–S batteries.

A self-supported, flexible, binder-free pseudo-supercapacitor electrode material with high capacitance and cycling stability from hollow, capsular polypyrrole fibers

2015 ◽  
Vol 3 (31) ◽  
pp. 16162-16167 ◽  
Author(s):  
Zhenyu Li ◽  
Jie Cai ◽  
Pavel Cizek ◽  
Haitao Niu ◽  
Yong Du ◽  
...  
Keyword(s):  
Electrode Material ◽  
Cycling Stability ◽  
Supercapacitor Electrode ◽  
High Capacitance ◽  
Binder Free ◽  
Excellent Cycling Stability

A hollow capsular polypyrrole nanofiber has shown great potential for preparing pseudo-supercapacitor electrodes with high capacitance and excellent cycling stability.

High specific energy supercapacitor electrode prepared from MnS/Ni3S2 composite grown on nickel foam

2021 ◽  
Vol 45 (39) ◽  
pp. 18641-18650
Author(s):  
Aya Mohamed Abuelftooh ◽  
N. S. Tantawy ◽  
S. S. Mahmouad ◽  
M. A. Shoeib ◽  
Saad G. Mohamed
Keyword(s):  
Specific Energy ◽  
Nickel Foam ◽  
Supercapacitor Electrode ◽  
Binder Free ◽  
High Specific Energy

Herein, MnS was prepared in situ with Ni3S2 directly on nickel foam to obtain a novel binder-free highly conductive electrode with a superb echinocactus-like morphology.

scholarly journals Facile in situ growth of ZnO nanosheets standing on Ni foam as binder-free anodes for lithium ion batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (34) ◽  
pp. 19253-19260 ◽  
Author(s):  
Tianlai Xia ◽  
Yingqian Wang ◽  
Chengkang Mai ◽  
Guangxing Pan ◽  
Ling Zhang ◽  
...  
Keyword(s):  
Transition Metal Oxides ◽  
Specific Capacity ◽  
Lithium Ion ◽  
Ni Foam ◽  
Capacity Retention ◽  
High Specific Capacity ◽  
Zno Nanosheets ◽  
Rate Capacity ◽  
Binder Free

ZnO nanosheets@Ni foam anode showed a high specific capacity, good capacity retention and superior rate capacity. Moreover, other transition metal oxides were also similarly formed on Ni foam, confirming the universality and efficiency of the synthetic route.

Enhanced electrochemical activity of perforated graphene in nickel-oxide-based supercapacitors and fabrication of potential asymmetric supercapacitors

2017 ◽  
Vol 1 (3) ◽  
pp. 529-539 ◽  
Author(s):  
Qi Xun Xia ◽  
Je Moon Yun ◽  
Rajaram S. Mane ◽  
Lei Li ◽  
Jianjian Fu ◽  
...  
Keyword(s):  
Nickel Oxide ◽  
Electrode Material ◽  
Nickel Foam ◽  
Porous Electrode ◽  
Specific Capacity ◽  
Three Dimensional ◽  
Asymmetric Supercapacitors ◽  
Facile Hydrothermal Method ◽  
High Specific Capacity ◽  
Nio Nanosheets

We synthesize a hierarchically porous electrode material with a high specific capacity composed of nickel oxide (NiO) nanosheets and perforated graphene (PG) sheets grown on a three-dimensional (3D) macroporous nickel foam via a facile hydrothermal method.

scholarly journals Wire-in-Wire TiO2/C Nanofibers Free-Standing Anodes for Li-Ion and K-Ion Batteries with Long Cycling Stability and High Capacity

2021 ◽  
Vol 13 (1) ◽  
Author(s):  
Die Su ◽  
Yi Pei ◽  
Li Liu ◽  
Zhixiao Liu ◽  
Junfang Liu ◽  
...  
Keyword(s):  
Critical Role ◽  
Electronic Conductivity ◽  
Specific Capacity ◽  
High Capacity ◽  
Cycling Stability ◽  
Free Standing ◽  
High Specific Capacity ◽  
Tetracarboxylic Dianhydride ◽  
Carbon Network

AbstractWearable and portable mobile phones play a critical role in the market, and one of the key technologies is the flexible electrode with high specific capacity and excellent mechanical flexibility. Herein, a wire-in-wire TiO2/C nanofibers (TiO2 ww/CN) film is synthesized via electrospinning with selenium as a structural inducer. The interconnected carbon network and unique wire-in-wire nanostructure cannot only improve electronic conductivity and induce effective charge transports, but also bring a superior mechanic flexibility. Ultimately, TiO2 ww/CN film shows outstanding electrochemical performance as free-standing electrodes in Li/K ion batteries. It shows a discharge capacity as high as 303 mAh g−1 at 5 A g−1 after 6000 cycles in Li half-cells, and the unique structure is well-reserved after long-term cycling. Moreover, even TiO2 has a large diffusion barrier of K+, TiO2 ww/CN film demonstrates excellent performance (259 mAh g−1 at 0.05 A g−1 after 1000 cycles) in K half-cells owing to extraordinary pseudocapacitive contribution. The Li/K full cells consisted of TiO2 ww/CN film anode and LiFePO4/Perylene-3,4,9,10-tetracarboxylic dianhydride cathode possess outstanding cycling stability and demonstrate practical application from lighting at least 19 LEDs. It is, therefore, expected that this material will find broad applications in portable and wearable Li/K-ion batteries.

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