scholarly journals One-Step and Morphology-Controlled Synthesis of Ni-Co Binary Hydroxide on Nickel Foam for High-Performance Supercapacitors

2020 ◽  
Vol 10 (11) ◽  
pp. 3814
Author(s):  
Xiao Fan ◽  
Per Ohlckers ◽  
Xuyuan Chen
Keyword(s):  
High Performance ◽  
Nickel Foam ◽  
Rate Capability ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
One Step ◽  
Binder Free ◽  
Current Densities ◽  
Binary Material

Ni-Co binary hydroxide grown on nickel foam was synthesized through a facile one-step process for pseudocapacitive electrode application. The morphology of the fabricated binary hydroxide, evolving from nanosheet to nanowire, was highly controllable by tuning the Ni:Co ratio. In systematical electrochemical measurements, the prepared binary material on nickel foam could be employed as a binder-free working electrode directly. The optimal composition obtained at the Ni:Co ratio of 5:5 in integrated nanosheet/nanowire geometry exhibited high specific capacitances of 2807 and 2222 F/g at current densities of 1 and 20 A/g, equivalent to excellent rate capability. The capacitance loss was 19.8% after 2000 cycles, demonstrating good long-term cyclic stability. The outstanding supercapacitors behaviors benefited from unique structure and synergistic contributions, indicating the great potential of the obtained binary hydroxide electrode for high-performance energy storage devices.

scholarly journals Boosting the Electrochemical Performance of Polyaniline by One-Step Electrochemical Deposition on Nickel Foam for High-Performance Asymmetric Supercapacitor

Polymers ◽  
2022 ◽  
Vol 14 (2) ◽  
pp. 270
Author(s):  
Syed Shaheen Shah ◽  
Himadri Tanaya Das ◽  
Hasi Rani Barai ◽  
Md. Abdul Aziz
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Nickel Foam ◽  
Conductive Polymer ◽  
Negative Electrode ◽  
Electrochemical Performances ◽  
Asymmetric Supercapacitor ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
One Step

Energy generation can be clean and sustainable if it is dependent on renewable resources and it can be prominently utilized if stored efficiently. Recently, biomass-derived carbon and polymers have been focused on developing less hazardous eco-friendly electrodes for energy storage devices. We have focused on boosting the supercapacitor’s energy storage ability by engineering efficient electrodes in this context. The well-known conductive polymer, polyaniline (PANI), deposited on nickel foam (NF) is used as a positive electrode, while the activated carbon derived from jute sticks (JAC) deposited on NF is used as a negative electrode. The asymmetric supercapacitor (ASC) is fabricated for the electrochemical studies and found that the device has exhibited an energy density of 24 µWh/cm2 at a power density of 3571 µW/cm2. Furthermore, the ASC PANI/NF//KOH//JAC/NF has exhibited good stability with ~86% capacitance retention even after 1000 cycles. Thus, the enhanced electrochemical performances of ASC are congregated by depositing PANI on NF that boosts the electrode’s conductivity. Such deposition patterns are assured by faster ions diffusion, higher surface area, and ample electroactive sites for better electrolyte interaction. Besides advancing technology, such work also encourages sustainability.

Hierarchical flower-like Ni3V2O8/Co3V2O8 composites as advanced anode materials for lithium-ion batteries

2020 ◽  
Vol 13 (03) ◽  
pp. 2050014
Author(s):  
Yang Li ◽  
Feng Duan ◽  
Songli Liu ◽  
Cheng Peng
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Electronic Conductivity ◽  
Hydrothermal Process ◽  
Rate Capability ◽  
Lithium Ion ◽  
Energy Storage Devices ◽  
Lithium Storage ◽  
Storage Devices ◽  
One Step

Hierarchical flower-like Ni3V2O8/Co3V2O8 composites were prepared by a simple one-step hydrothermal process. When employed as an anode for lithium-ion batteries (LIBs), the fabricated Ni3V2O8/Co3V2O8 composites exhibited significantly improved lithium storage performances with superior discharge capacity (1142.7[Formula: see text]mAh[Formula: see text]g[Formula: see text] at 100[Formula: see text]mA[Formula: see text]g[Formula: see text]), excellent cycling stability (933.2[Formula: see text]mAh[Formula: see text]g[Formula: see text] after 600 cycles at current density of 500[Formula: see text]mA[Formula: see text]g[Formula: see text]) and remarkable rate capability (607.6[Formula: see text]mAh[Formula: see text]g[Formula: see text] even at rate of 5000[Formula: see text]mA g[Formula: see text]). The superior electrochemical properties could be attributed to the hierarchical flower-like structure and impressive synergistic interplay between Ni3V2O8 and Co3V2O8, which resulted in improved electronic conductivity and stable mass transfer. This interesting hybridization strategy might open a new avenue to prepare micro/nanostructured composites for high-performance energy storage devices.

scholarly journals Oxygen-Deficient Stannic Oxide/Graphene for Ultrahigh-Performance Supercapacitors and Gas Sensors

Nanomaterials ◽  
2021 ◽  
Vol 11 (2) ◽  
pp. 372
Author(s):  
Liyang Lin ◽  
Susu Chen ◽  
Tao Deng ◽  
Wen Zeng
Keyword(s):  
Energy Storage ◽  
Gas Sensors ◽  
High Performance ◽  
Gas Sensing ◽  
Synthesis Method ◽  
Rate Capability ◽  
Stannic Oxide ◽  
Energy Storage Devices ◽  
Graphene Nanocomposites ◽  
Storage Devices

The metal oxides/graphene nanocomposites have great application prospects in the fields of electrochemical energy storage and gas sensing detection. However, rational synthesis of such materials with good conductivity and electrochemical activity is the topical challenge for high-performance devices. Here, SnO2/graphene nanocomposite is taken as a typical example and develops a universal synthesis method that overcome these challenges and prepares the oxygen-deficient SnO2 hollow nanospheres/graphene (r-SnO2/GN) nanocomposite with excellent performance for supercapacitors and gas sensors. The electrode r-SnO2/GN exhibits specific capacitance of 947.4 F g−1 at a current density of 2 mA cm−2 and of 640.0 F g−1 even at 20 mA cm−2, showing remarkable rate capability. For gas-sensing application, the sensor r-SnO2/GN showed good sensitivity (~13.8 under 500 ppm) and short response/recovering time toward methane gas. These performance features make r-SnO2/GN nanocomposite a promising candidate for high-performance energy storage devices and gas sensors.

One-step synthesized mesoporous MnO2@MoS2 nanocomposite for high performance energy storage devices

2018 ◽  
Vol 824 ◽  
pp. 226-237 ◽  
Author(s):  
Neha Kanaujiya ◽  
Nagesh Kumar ◽  
A.K. Srivastava ◽  
Yogesh Sharma ◽  
G.D. Varma
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
One Step

Spray-Painted Binder-Free SnSe Electrodes for High-Performance Energy-Storage Devices

ChemSusChem ◽  
2013 ◽  
Vol 7 (1) ◽  
pp. 308-313 ◽  
Author(s):  
Xianfu Wang ◽  
Bin Liu ◽  
Qingyi Xiang ◽  
Qiufan Wang. ◽  
Xiaojuan Hou ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Binder Free

Mesoporous Li4Ti5O12 nanoclusters anchored on super-aligned carbon nanotubes as high performance electrodes for lithium ion batteries

Nanoscale ◽  
2016 ◽  
Vol 8 (1) ◽  
pp. 617-625 ◽  
Author(s):  
Li Sun ◽  
Weibang Kong ◽  
Hengcai Wu ◽  
Yang Wu ◽  
Datao Wang ◽  
...  
Keyword(s):  
High Performance ◽  
Rate Capability ◽  
Lithium Ion ◽  
Lithium Titanate ◽  
High Rate ◽  
High Rate Capability ◽  
Aligned Carbon Nanotubes ◽  
Carbon Nanotube Network ◽  
Binder Free

A binder-free composite anode constructed by anchoring mesoporous lithium titanate nanoclusters in a carbon nanotube network exhibits high capacities, long-term cyclic stability, and excellent high-rate capability.

scholarly journals Ternary MOF-Based Redox Active Sites Enabled 3D-on-2D Nanoarchitectured Battery-Type Electrodes for High-Energy-Density Supercapatteries

2020 ◽  
Vol 13 (1) ◽  
Author(s):  
Goli Nagaraju ◽  
S. Chandra Sekhar ◽  
Bhimanaboina Ramulu ◽  
Sk. Khaja Hussain ◽  
D. Narsimulu ◽  
...  
Keyword(s):  
Active Sites ◽  
High Performance ◽  
Nickel Foam ◽  
Rate Capability ◽  
Negative Electrode ◽  
High Energy ◽  
High Energy Density ◽  
Phase Method ◽  
Charge Storage ◽  
Energy Storage Devices

Abstract Designing rationally combined metal–organic frameworks (MOFs) with multifunctional nanogeometries is of significant research interest to enable the electrochemical properties in advanced energy storage devices. Herein, we explored a new class of binder-free dual-layered Ni–Co–Mn-based MOFs (NCM-based MOFs) with three-dimensional (3D)-on-2D nanoarchitectures through a polarity-induced solution-phase method for high-performance supercapatteries. The hierarchical NCM-based MOFs having grown on nickel foam exhibit a battery-type charge storage mechanism with superior areal capacity (1311.4 μAh cm−2 at 5 mA cm−2), good rate capability (61.8%; 811.67 μAh cm−2 at 50 mA cm−2), and an excellent cycling durability. The superior charge storage properties are ascribed to the synergistic features, higher accessible active sites of dual-layered nanogeometries, and exalted redox chemistry of multi metallic guest species, respectively. The bilayered NCM-based MOFs are further employed as a battery-type electrode for the fabrication of supercapattery paradigm with biomass-derived nitrogen/oxygen doped porous carbon as a negative electrode, which demonstrates excellent capacity of 1.6 mAh cm−2 along with high energy and power densities of 1.21 mWh cm−2 and 32.49 mW cm−2, respectively. Following, the MOF-based supercapattery was further assembled with a renewable solar power harvester to use as a self-charging station for various portable electronic applications.

A novel electrochemical procedure for grown of bimetallic metal–organic framework (Ni/Zn-MOF) and its derived hydroxide@C onto Ni foam as binder-free high performance battery-type electrodes for supercapacitors

2021 ◽  
Author(s):  
Qichao Song ◽  
Chunguang Yang
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Electrode Materials ◽  
Metal Organic Framework ◽  
Ni Foam ◽  
Energy Storage Devices ◽  
Cathodic Electrodeposition ◽  
Storage Devices ◽  
Metal Organic ◽  
Binder Free

Abstract Todays, metal-organic frameworks (MOFs) and their derived structures have been extensively investigated as the novel electrode materials in energy storage area due to their stable porous architectures and exceptionally large specific surface area. In this study, bimetallic Ni,Zn-MOF is synthesized onto Ni foam via a novel indirect cathodic electrodeposition method for the first time. After that, the fabricated Ni,Zn-MOFs onto Ni foam was converted to corresponding bi-metal hydroxide@C/Ni foam through direct chemical treating with 6M KOH solution. The obtained Ni,Zn-MOFs/NF and Ni2 − xZnx (OH)2@C/NF electrodes are characterized through XRD, FT-IR, FE-SEM and EDS analyses. These analyses results confirmed deposition of well-defined crystalline porous sheet-like structures of Ni3 − xZnx(BTC)2 deposited onto Ni foam, where the hydroxide@C electrode was also exhibited similar morphology. As the binder-free electrode, the as-prepared Ni,Zn-MOF@Ni foam exhibited the superior storage capacities of 356.1 mAh g− 1 and 255.5 mAh g− 1 as well as good cycling stabilities of 94.2 % and 84.5 % after 6000 consecutive charge/discharge cycles at the current densities of 5 and 15 A g− 1, respectively. On the other hand, Ni,Zn-MOF derived hydroide@C/Ni foam presented the superior capacities of 545 mAh g− 1 and 406 mAh g− 1 as well as proper cycle lifes of 91.8 % and 78.3 % after 6000 cycling at the applied loads of 5 and 15 A g− 1, respectively. Based on these findings, both of these fabricated battery-type electrodes are introduced as the promising candidates for use in energy storage devices.

Co-Incorporated NiV2O6/Ni(HCO3)2 nanoflake arrays grown on nickel foam as a high-performance supercapacitor electrode

2019 ◽  
Vol 48 (16) ◽  
pp. 5315-5326 ◽  
Author(s):  
Shaolei Zhao ◽  
Keyu Tao ◽  
Yun Gong
Keyword(s):  
High Performance ◽  
Nickel Foam ◽  
Rate Capability ◽  
Supercapacitor Electrode ◽  
Areal Capacity

Co-Incorporated NiV2O6/Ni(HCO3)2 nanoflake arrays grown on nickel foam demonstrate a high areal capacity with excellent rate capability and long-term durability.

Sponge-like NiCo2S4 nanosheets supported on nickel foam as high-performance electrode materials for asymmetric supercapacitors

2021 ◽  
Vol 8 (1) ◽  
pp. 72-78
Author(s):  
Fuyong Ren ◽  
Yajun Ji ◽  
Shufen Tan ◽  
Fei Chen
Keyword(s):  
High Performance ◽  
Electrode Materials ◽  
Nickel Foam ◽  
High Mass ◽  
Mass Loading ◽  
Ni Foam ◽  
Hydrothermal Route ◽  
Asymmetric Supercapacitors ◽  
One Step ◽  
Binder Free

Herein, binder-free sponge-like NiCo2S4 nanosheets supported on Ni foam with ultra-high mass loading were synthesized via a facile one-step hydrothermal route.

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