scholarly journals Controllable synthesis of hollow spherical nickel chalcogenide (NiS2 and NiSe2) decorated with graphene for efficient supercapacitor electrodes

RSC Advances ◽  
2021 ◽  
Vol 11 (20) ◽  
pp. 11786-11792
Author(s):  
Min Lu ◽  
Ming-yuan Sun ◽  
Xiao-hui Guan ◽  
Xue-mei Chen ◽  
Guang-Sheng Wang
Keyword(s):  
Specific Capacitance ◽  
Hydrothermal Method ◽  
Graphite Oxide ◽  
Rate Performance ◽  
Controllable Synthesis ◽  
Facile Hydrothermal Method ◽  
Mass Fractions ◽  
Loaded Material

The carbon-loaded material by introducing graphite oxide with different mass fractions through a l-cysteine-assisted facile hydrothermal method was synthesized. The specific capacitance was increased with GO and the rate performance was improved.

Controllable synthesis of different microstructured MnO2 by a facile hydrothermal method for supercapacitors

2017 ◽  
Vol 692 ◽  
pp. 26-33 ◽  
Author(s):  
Na Li ◽  
Xiaohong Zhu ◽  
Caiyun Zhang ◽  
Liuqin Lai ◽  
Rong Jiang ◽  
...  
Keyword(s):  
Hydrothermal Method ◽  
Controllable Synthesis ◽  
Facile Hydrothermal Method

Ultrahigh energy density asymmetric electrochemical capacitors based on flower-like ZnO/Co3O4 nanobundle arrays and stereotaxically constricted graphene

2019 ◽  
Vol 7 (3) ◽  
pp. 1273-1280 ◽  
Author(s):  
Ning Hu ◽  
Wen Hao Gong ◽  
Lei Huang ◽  
Pei Kang Shen
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
Hydrothermal Method ◽  
Current Density ◽  
Electrochemical Capacitors ◽  
Ultrahigh Energy ◽  
Facile Hydrothermal Method ◽  
A Current

Unique hierarchical flower-like ZnO/Co3O4 nanobundle arrays were synthesized via a facile hydrothermal method and the electrode shows remarkable specific capacitance up to 1983 F g−1 at a current density of 2 A g−1.

In situ growth of urchin-like NiCo2S4 hexagonal pyramid microstructures on 3D graphene nickel foam for enhanced performance of supercapacitors

RSC Advances ◽  
2016 ◽  
Vol 6 (12) ◽  
pp. 9446-9452 ◽  
Author(s):  
Xiaoli Wang ◽  
Xianjun Xia ◽  
Lemu Girma Beka ◽  
Weihua Liu ◽  
Xin Li
Keyword(s):  
Specific Capacitance ◽  
Hydrothermal Method ◽  
Nickel Foam ◽  
High Mass ◽  
In Situ Growth ◽  
Mass Loading ◽  
Rate Performance ◽  
3D Graphene ◽  
Hexagonal Pyramid

Urchin-like NiCo2S4 hexagonal pyramid microstructures have been successfully fabricated on 3-D graphene nickel foam by a two-step hydrothermal method. These achieve a rather high mass loading, with enhanced specific capacitance, rate performance and cycling stability.

Ultralight and flexible supercapacitor electrodes made from Ni(OH)2 nanosheets doped with Ag nanoparticle/3D graphene composite

RSC Advances ◽  
2015 ◽  
Vol 5 (27) ◽  
pp. 20878-20883 ◽  
Author(s):  
Wei Lan ◽  
Yaru Sun ◽  
Youxin Chen ◽  
Junya Wang ◽  
Guomei Tang ◽  
...  
Keyword(s):  
Specific Capacitance ◽  
Hydrothermal Method ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
Ag Nanoparticle ◽  
Cycle Stability ◽  
Facile Hydrothermal Method ◽  
3D Graphene ◽  
Flexible Supercapacitor ◽  
Graphene Composite

Ag nanoparticle doped Ni(OH)2 nanosheets are deposited on flexible 3D graphene by a facile hydrothermal method. The electrode shows high specific capacitance with an increase of ~23% and excellent rate capability. The electrode also has good cycle stability.

scholarly journals One step synthesis of Ni/Ni(OH)2 nano sheets (NSs) and their application in asymmetric supercapacitors

RSC Advances ◽  
2017 ◽  
Vol 7 (10) ◽  
pp. 5898-5911 ◽  
Author(s):  
Sivasankara Rao Ede ◽  
S. Anantharaj ◽  
K. T. Kumaran ◽  
Soumyaranjan Mishra ◽  
Subrata Kundu
Keyword(s):  
Energy Density ◽  
Specific Capacitance ◽  
Hydrothermal Method ◽  
Maximum Energy ◽  
Reducing Agent ◽  
Asymmetric Supercapacitors ◽  
Facile Hydrothermal Method ◽  
One Step ◽  
Asymmetric Device

Ni/Ni(OH)2 NSs were prepared by a facile hydrothermal method using EtOH as reducing agent. Asymmetric device is fabricated using AC and Ni/Ni(OH)2 NSs as electrodes, with optimized specific capacitance of 62 F g−1 and a maximum energy density of 23.45 W h kg−1.

Ultrathin BiVO4 nanobelts: controllable synthesis and improved photocatalytic oxidation of water

RSC Advances ◽  
2016 ◽  
Vol 6 (77) ◽  
pp. 73136-73139 ◽  
Author(s):  
Zhengbo Jiao ◽  
Hongchao Yu ◽  
Xuesen Wang ◽  
Yingpu Bi
Keyword(s):  
Charge Transfer ◽  
Hydrothermal Method ◽  
Crystalline Structure ◽  
Photocatalytic Oxidation ◽  
Controllable Synthesis ◽  
Facile Hydrothermal Method ◽  
Transfer Distance ◽  
Photocatalytic Performances

Ultrathin BiVO4 nanobelts, which was synthesized by a facile hydrothermal method, exhibited improved photocatalytic performances due to their short charge transfer distance and highly crystalline structure.

Facile hydrothermal synthesis of BiFeO3 nanoplates for enhanced supercapacitor properties

2018 ◽  
Vol 11 (01) ◽  
pp. 1850013 ◽  
Author(s):  
Shungao Yin ◽  
Yanting Wu ◽  
Jiale Chen ◽  
Zhaoling Chen ◽  
Haoqing Hou ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Specific Capacitance ◽  
Hydrothermal Method ◽  
Cyclic Stability ◽  
Facile Hydrothermal Method ◽  
Capacitive Properties ◽  
Scan Rate ◽  
Average Shape ◽  
Electrochemically Deposited ◽  
Promising Application

Perovskite BiFeO3 nanoplates were prepared via a facile hydrothermal method with NaOH as mineralizer. The obtained BiFeO3 nanoplates are about 30[Formula: see text]nm [Formula: see text] 90[Formula: see text]nm [Formula: see text]90[Formula: see text]nm in an average shape. This hydrothermal novel nanostructure with lots of defects largely enhances the specific capacitance compared with the electrochemically deposited BiFeO3 nanoparticles. The electrode of BiFeO3 nanoplates exhibits the highest specific capacitance of 254.6[Formula: see text]F g[Formula: see text] at a scan rate of 1[Formula: see text]mV s[Formula: see text] as well as good cyclic stability with 84% special capacitance retention after 1000 cycles. The prominent capacitive properties of hydrothermally obtained BiFeO3 suggest its promising application for supercapacitors.

A facile hydrothermal method for the controllable synthesis of TiO2 nanocrystals with tunable shapes

RSC Advances ◽  
2015 ◽  
Vol 5 (125) ◽  
pp. 103386-103393 ◽  
Author(s):  
Shengchao Nie ◽  
Xiujian Zhao ◽  
Baoshun Liu
Keyword(s):  
Hydrothermal Method ◽  
Controllable Synthesis ◽  
Tio2 Nanocrystals ◽  
Facile Hydrothermal Method

Using OA and OM as the capping surfactants, a facile and harmless hydrothermal method was invented to prepare anatase TiO2 nanocrystals with exposed {101} facets.

A novel Fe recycling method from pickling wastewater producing a KFeS2 whisker for electroplating wastewater treatment

2021 ◽  
Author(s):  
Dongxu Liang ◽  
Manhong Ji ◽  
Suiyi Zhu ◽  
Yu Chen ◽  
Zhihua Wang ◽  
...  
Keyword(s):  
Heavy Metals ◽  
Wastewater Treatment ◽  
Hydrothermal Method ◽  
Facile Hydrothermal Method ◽  
Electroplating Wastewater ◽  
Pickling Sludge

Pickling sludge was converted to a novel product of KFeS2 nanorods via a facile hydrothermal method that effectively removes heavy metals from electroplating wastewater.

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