Synthesis of 3D flower-like hierarchical NiCo-LDH microspheres with boosted electrochemical performance for hybrid supercapacitors

2021 ◽  
Author(s):  
Di Jiang ◽  
Chuan-Ying Wei ◽  
Zi-Yang Zhu ◽  
Xiao-Hui Guan ◽  
Min Lu ◽  
...  
Keyword(s):  
Ionic Conductivity ◽  
Electrochemical Performance ◽  
Layered Double Hydroxide ◽  
Three Dimensional ◽  
High Ionic Conductivity ◽  
Hybrid Supercapacitors ◽  
Double Hydroxide ◽  
In Virtue Of ◽  
Considerable Concern

Hybrid supercapacitors (HSCs) have aroused considerable concern in virtue of high ionic conductivity and operation voltage. In this study, three-dimensional (3D) flower-like hierarchical NiCo layered double hydroxide (LDH) microspheres are...

Eco-friendly synthesis of hierarchical ginkgo-derived carbon nanoparticles/NiAl-layered double hydroxide hybrid electrodes toward high-performance supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (68) ◽  
pp. 55109-55118 ◽  
Author(s):  
Mingkai Liu ◽  
Sixin He ◽  
Yue-E Miao ◽  
Yunpeng Huang ◽  
Hengyi Lu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Layered Double Hydroxide ◽  
Carbon Nanoparticles ◽  
Mesoporous Carbon ◽  
High Performance ◽  
Three Dimensional ◽  
Hierarchical Nanostructures ◽  
Double Hydroxide

Eco-friendly prepared three-dimensional mesoporous carbon nanoparticles (CP)/NiAl-layered double hydroxide (NiAl-LDH) hybrids (CP/LDHs) with hierarchical nanostructures exhibited remarkably improved electrochemical performance in supercapacitors.

A hybrid aerogel of Co–Al layered double hydroxide/graphene with three-dimensional porous structure as a novel electrode material for supercapacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (33) ◽  
pp. 26017-26026 ◽  
Author(s):  
Aili Zhang ◽  
Cong Wang ◽  
Qunjie Xu ◽  
Haimei Liu ◽  
Yonggang Wang ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Electrochemical Performance ◽  
Porous Structure ◽  
Layered Double Hydroxide ◽  
Electrode Material ◽  
Three Dimensional ◽  
High Electrical Conductivity ◽  
Double Hydroxide ◽  
Hybrid Aerogel

3D porous Co–Al layered double hydroxide/graphene hybrid aerogel was prepared by a facile in situ hydrothermal method and showed high electrical conductivity, mechanical flexibility, and good electrochemical performance for supercapacitors.

scholarly journals Three-dimensional nickel vanadium layered double hydroxide nanostructures grown on carbon cloth for high-performance flexible supercapacitor applications

2019 ◽  
Vol 1 (6) ◽  
pp. 2400-2407 ◽  
Author(s):  
Ankit Tyagi ◽  
Manish Chandra Joshi ◽  
Kushagra Agarwal ◽  
Bhuvaneshwari Balasubramaniam ◽  
Raju Kumar Gupta
Keyword(s):  
Solid State ◽  
Electrochemical Performance ◽  
Layered Double Hydroxide ◽  
High Performance ◽  
Three Dimensional ◽  
Carbon Cloth ◽  
Flexible Supercapacitor ◽  
Double Hydroxide ◽  
Supercapacitor Applications

The electrochemical performance of the flexible solid-state supercapacitor device comprising ultrathin Ni–V layered double hydroxide nanosheets grown on carbon cloth showed a negligible change upon bending and twisting of the device.

Heterostructures of Ni–Co–Al layered double hydroxide assembled on V4C3MXene for high-energy hybrid supercapacitors

2019 ◽  
Vol 7 (5) ◽  
pp. 2291-2300 ◽  
Author(s):  
Xin Wang ◽  
Hui Li ◽  
Han Li ◽  
Shuai Lin ◽  
Jin Bai ◽  
...  
Keyword(s):  
Layered Double Hydroxide ◽  
High Energy ◽  
Hybrid Supercapacitor ◽  
Synthetic Process ◽  
Hybrid Supercapacitors ◽  
Double Hydroxide

The synthetic process of the NiCoAl-LDH/V4C3Txcomposite and the assembled NiCoAl-LDH/V4C3Tx//AC hybrid supercapacitor device.

Synthesis of hierarchical porous CuO Nanowire@NiCo-layered double hydroxide core-shell structured nanoarrays on copper foam for high-performance supercapacitors

2017 ◽  
Author(s):  
Guo Hengzhi ◽  
Ben Qing ◽  
Shuxing Wu ◽  
Oscar K.S. Hui ◽  
Zalnezhad Erfan
Keyword(s):  
Layered Double Hydroxide ◽  
High Performance ◽  
Three Dimensional ◽  
Core Shell ◽  
Deposition Technique ◽  
Cuo Nanowires ◽  
Copper Foam ◽  
Hierarchical Porous ◽  
Cuo Nanowire ◽  
Double Hydroxide

In this work, a facile potentiostatic deposition technique was used to fabricate a three-dimensional (3D) core-shell structured nanoarray composed of hierarchical porous CuO nanowires@NiCo layered double hydroxide nanosheets (CuO NWAs@NiCo-LDH)...

Highly efficient carbonaceous nanofiber/layered double hydroxide nanocomposites for removal of U(VI) from aqueous solutions

2019 ◽  
Vol 107 (4) ◽  
pp. 299-309
Author(s):  
Shuqi Yu ◽  
Xiangxue Wang ◽  
Shunyan Ning ◽  
Zhongshan Chen ◽  
Xiangke Wang
Keyword(s):  
Ionic Strength ◽  
Aqueous Solutions ◽  
Layered Double Hydroxide ◽  
Photoelectron Spectroscopy ◽  
Environmental Remediation ◽  
Three Dimensional ◽  
Order Kinetic ◽  
Surface Bonding ◽  
Double Hydroxide ◽  
Shed Light

Abstract The three-dimensional (3D) carbonaceous nanofiber and Ni-Al layered double hydroxide (CNF/LDH) nanocomposite was successfully prepared by a facile one-step hydrothermal methodology. Characterization of scanning electron microscope (SEM), transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), XRD, and Fourier transformed infrared spectroscopy (FTIR) provided a demonstration that the modified CNF/LDH nanocomposite possessed abundant functional groups, for instance, metal-oxygen surface bonding sites (Ni–O as well as Al–O) and free-metal surface bonding sites (C–O, C–O–C, as well as O–C=O). The elimination of representative radionuclide (i.e. U(VI)) on the CNF/LDH nanocomposite from aqueous solutions was explored as a key function of pH, ionic strength, contact time, reaction temperature as well as radionuclide preliminary concentrations with the use of the batch methodology. As revealed by the findings, the sorption of radionuclides on CNF/LDH nanocomposite adhered to the pseudo-second-order kinetic model as well as Langmuir model. The maximum elimination capacity of U(VI) amounted to be 0.7 mmol/g. The independent of ionic strength shed light on the fact that inner-sphere surface complexation mainly overpowered radionuclide uptake by the CNF/LDH nanocomposite, which was further verified through the combination of FTIR and XPS spectral analyses. The abovementioned analyses shed light on the fact that the CNF/LDH nanocomposite can be regarded as a latent material to preconcentration radionuclides for environmental remediation.

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