scholarly journals Rational design of asymmetric supercapacitors via a hierarchical core–shell nanocomposite cathode and biochar anode

RSC Advances ◽  
2019 ◽  
Vol 9 (72) ◽  
pp. 42543-42553 ◽  
Author(s):  
Meiqing Fan ◽  
Xu Zeng ◽  
Xiaodong Yang ◽  
Xin Zhang ◽  
Bo Ren
Keyword(s):  
Rational Design ◽  
Hydrothermal Process ◽  
Core Shell ◽  
Asymmetric Supercapacitors ◽  
Facile Hydrothermal Process

Hierarchical MnO2 nanosheets standing on hollow NiO microspheres have been designed by a facile hydrothermal process. Furthermore, asymmetric supercapacitors via core/shell NiO/MnO2 cathode and biochar anode were assembled.

Hierarchically 3D Nanoporous Structured Co9S8@Nix:Moy–Se Core–shell Nanowire Arrays Electrode for the High-performance Asymmetric Supercapacitors

2021 ◽  
Author(s):  
Dai Jiu Yi ◽  
Soram Bobby Singh ◽  
Nam Hoon Kim ◽  
Joong Hee Lee
Keyword(s):  
Energy Conversion ◽  
High Performance ◽  
Rational Design ◽  
Electrode Materials ◽  
Storage Systems ◽  
Nanowire Arrays ◽  
Core Shell ◽  
Good Strategy ◽  
Free Standing ◽  
Asymmetric Supercapacitors

The rational design of free-standing hierarchic core–shell nanoporous architectures is a good strategy for fabricating next-generation electrode materials for application to electrochemical energy conversion/storage systems. Herein, hierarchical core–shell 3D Co9S8@Nix:Moy–Se...

scholarly journals Fast and Efficient Removal of Uranium onto a Magnetic Hydroxyapatite Composite: Mechanism and Process Evaluation

Processes ◽  
2021 ◽  
Vol 9 (11) ◽  
pp. 1927
Author(s):  
Tao Ou ◽  
Hairong Peng ◽  
Minhua Su ◽  
Qingpu Shi ◽  
Jinfeng Tang ◽  
...  
Keyword(s):  
Crystalline Phase ◽  
Rational Design ◽  
Cobalt Ferrite ◽  
Hydrothermal Process ◽  
Maximum Adsorption Capacity ◽  
Efficient Removal ◽  
Hydroxyapatite Composite ◽  
Main Crystalline Phase ◽  
Short Time ◽  
Facile Hydrothermal Process

The exploration and rational design of easily separable and highly efficient sorbents with satisfactory capability of extracting radioactive uranium (U)-containing compound(s) are of paramount significance. In this study, a novel magnetic hydroxyapatite (HAP) composite (HAP@ CoFe2O4), which was coupled with cobalt ferrite (CoFe2O4), was rationally designed for uranium(VI) removal through a facile hydrothermal process. The U(VI) ions were rapidly removed using HAP@ CoFe2O4 within a short time (i.e., 10 min), and a maximum U(VI) removal efficiency of 93.7% was achieved. The maximum adsorption capacity (Qmax) of the HAP@CoFe2O4 was 338 mg/g, which demonstrated the potential of as-prepared HAP@CoFe2O4 in the purification of U(VI) ions from nuclear effluents. Autunite [Ca(UO2)2(PO4)2(H2O)6] was the main crystalline phase to retain uranium, wherein U(VI) was effectively extracted and immobilized in terms of a relatively stable mineral. Furthermore, the reacted HAP@CoFe2O4 can be magnetically recycled. The results of this study reveal that the suggested process using HAP@CoFe2O4 is a promising approach for the removal and immobilization of U(VI) released from nuclear effluents.

NiCo2O4 nanosheets grown on interconnected honeycomb-like porous biomass carbon for high performance asymmetric supercapacitors

2018 ◽  
Vol 42 (11) ◽  
pp. 8478-8484 ◽  
Author(s):  
Dongxuan Guo ◽  
Li Zhang ◽  
Xiumei Song ◽  
Lichao Tan ◽  
Huiyuan Ma ◽  
...  
Keyword(s):  
High Performance ◽  
Hydrothermal Process ◽  
Biomass Carbon ◽  
Asymmetric Supercapacitors ◽  
Nico2o4 Nanosheets ◽  
Facile Hydrothermal Process

An interconnected honeycomb-like structure of the HLPBC/NiCo2O4 composite was successfully prepared by carbonization combined with a facile hydrothermal process.

Mechanism analysis of the capacitance contributions and ultralong cycling-stability of the isomorphous MnO2@MnO2 core/shell nanostructures for supercapacitors

2015 ◽  
Vol 3 (11) ◽  
pp. 6168-6176 ◽  
Author(s):  
Jiajia Shao ◽  
Xiying Zhou ◽  
Qian Liu ◽  
Rujia Zou ◽  
Wenyao Li ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Hydrothermal Process ◽  
High Specific Capacitance ◽  
Cycling Stability ◽  
Core Shell ◽  
Mechanism Analysis ◽  
Shell Nanostructures ◽  
Excellent Cycling Stability ◽  
Facile Hydrothermal Process

The isomorphous MnO2@MnO2 core/shell nanostructures synthesized through a facile hydrothermal process showed remarkable electrochemical performance, i.e., a high specific capacitance with excellent cycling stability.

Rational design of octahedron and nanowire CeO2@MnO2 core–shell heterostructures with outstanding rate capability for asymmetric supercapacitors

2015 ◽  
Vol 51 (80) ◽  
pp. 14840-14843 ◽  
Author(s):  
Shi Jin Zhu ◽  
Jia Qi Jia ◽  
Tian Wang ◽  
Dong Zhao ◽  
Jian Yang ◽  
...  
Keyword(s):  
Self Assembly ◽  
Rational Design ◽  
Rate Capability ◽  
Core Shell ◽  
Asymmetric Supercapacitors ◽  
Assembly Strategy

Two kinds of novel CeO2@MnO2 nanostructures have been synthesized via a self-assembly strategy.

Nanostructuring of a GNS-V2O5–TiO2 core–shell photocatalyst for water remediation applications under sun-light irradiation

RSC Advances ◽  
2015 ◽  
Vol 5 (24) ◽  
pp. 18633-18641 ◽  
Author(s):  
R. Ajay Rakkesh ◽  
D. Durgalakshmi ◽  
S. Balakumar
Keyword(s):  
Sol Gel ◽  
Hydrothermal Process ◽  
Light Irradiation ◽  
Water Remediation ◽  
Core Shell ◽  
New Class ◽  
Gel Technique ◽  
Facile Hydrothermal Process ◽  
Sun Light

The GNS-V2O5–TiO2 composite, as a new class of nanoarchitecture, has been successfully fabricated by a facile hydrothermal process followed by a sol–gel technique.

Rational design and preparation of few-layered MoSe2 nanosheet@C/TiO2 nanobelt heterostructures with superior lithium storage performance

RSC Advances ◽  
2016 ◽  
Vol 6 (28) ◽  
pp. 23161-23168 ◽  
Author(s):  
Hanshuo Wu ◽  
Yuxin Wu ◽  
Xi Chen ◽  
Yongjin Ma ◽  
Mingquan Xu ◽  
...  
Keyword(s):  
Rational Design ◽  
Hydrothermal Process ◽  
Lithium Storage ◽  
Storage Performance ◽  
Facile Hydrothermal Process

A heterostructure of MoSe2 nanosheets decorated on C/TiO2 nanobelts was successfully fabricated through a facile hydrothermal process with the assistance of glucose.

Enhanced photocatalytic activity of Bi25FeO40–Bi2WO6 heterostructures based on the rational design of the heterojunction interface

RSC Advances ◽  
2016 ◽  
Vol 6 (31) ◽  
pp. 26038-26044 ◽  
Author(s):  
Lei Zhang ◽  
Yue Zou ◽  
Jian Song ◽  
Cheng-Ling Pan ◽  
Shao-Ding Sheng ◽  
...  
Keyword(s):  
Photocatalytic Activity ◽  
Rational Design ◽  
Hydrothermal Process ◽  
Facile Hydrothermal Process

Based on the rational design of heterojunction interface, a novel and efficient Bi25FeO40–Bi2WO6 heterostructure photocatalyst was successfully constructed by a facile hydrothermal process.

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