Hydrothermal Synthesis of Ni-MOF Vulcanized Derivatives for High-Performance Supercapacitors

NANO ◽  
2019 ◽  
Vol 14 (03) ◽  
pp. 1950032 ◽  
Author(s):  
Shuwen Gao ◽  
Yanwei Sui ◽  
Fuxiang Wei ◽  
Jiqiu Qi ◽  
Qingkun Meng ◽  
...  
Keyword(s):  
Hydrothermal Synthesis ◽  
Electrochemical Performance ◽  
Power Density ◽  
High Performance ◽  
Maximum Power Density ◽  
Hydrothermal Time ◽  
Supercapacitive Performance ◽  
Long Cycle Life ◽  
Excellent Electrochemical Performance ◽  
Thiourea Concentration

A series of nickel sulfides derived from the hexagonal Ni-MOF are vulcanized through adjusting the hydrothermal time and the thiourea concentration. Among all the obtained nickel sulfides, one sample Ni-S2-3, which inherits the Ni-MOF’s morphology, shows the best electrochemical performance with a remarkable specific capacitance of 1128[Formula: see text]Fg[Formula: see text] at 1[Formula: see text]Ag[Formula: see text], a rate capacitance of 50% and a long cycle life of 74% retention after 5000 cycles. Furthermore, the asymmetrical supercapacitors (SCs) based on Ni-S2-3//AC exhibit a good supercapacitive performance with a maximum power density of 16.3[Formula: see text]Wh kg[Formula: see text] at a power density of 800[Formula: see text]Wkg[Formula: see text]. All these results indicate that vulcanizing Ni-MOF is an effective way to fabricate a superior electrode material with excellent electrochemical performance for SCs.

scholarly journals Formation of graphene-encapsulated CoS2 hybrid composites with hierarchical structures for high-performance lithium-ion batteries

RSC Advances ◽  
2017 ◽  
Vol 7 (63) ◽  
pp. 39427-39433 ◽  
Author(s):  
Shi Tao ◽  
Weifeng Huang ◽  
Hui Xie ◽  
Jing Zhang ◽  
Zhicheng Wang ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Hydrothermal Method ◽  
Hierarchical Structure ◽  
High Performance ◽  
Hybrid Composites ◽  
Hierarchical Structures ◽  
Lithium Ion ◽  
Long Cycle Life ◽  
Excellent Electrochemical Performance

Hierarchical structure CoS2 nanospheres with graphene (CoS2/G) composite is fabricated by a simple hydrothermal method. This composite exhibits excellent electrochemical performance, especially long cycle life.

High-performance Ultracapacitor Electrodes Realized by 3-dimensionally Bicontinuous Block Copolymer Nanostructures with Enhanced Ion Kinetics

2021 ◽  
Author(s):  
Gun Ho Lee ◽  
Byung Jun Park ◽  
Tae Won Nam ◽  
Ye Ji Kim ◽  
Gyu Rac Lee ◽  
...  
Keyword(s):  
Block Copolymer ◽  
Energy Density ◽  
Electrochemical Performance ◽  
Power Density ◽  
High Power ◽  
High Performance ◽  
High Power Density ◽  
Excellent Electrochemical Performance ◽  
Battery Systems ◽  
Critical Challenge

Despite the high power density of ultracapacitors, increasing the energy density to level that of conventional battery systems remains a critical challenge. Here, we report excellent electrochemical performance of three-dimensionally...

Two-dimensional hybrid nanosheets of few layered MoSe2 on reduced graphene oxide as anodes for long-cycle-life lithium-ion batteries

2016 ◽  
Vol 4 (40) ◽  
pp. 15302-15308 ◽  
Author(s):  
Zhigao Luo ◽  
Jiang Zhou ◽  
Lirong Wang ◽  
Guozhao Fang ◽  
Anqiang Pan ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
Reduced Graphene Oxide ◽  
Lithium Ion ◽  
Cycle Life ◽  
Two Dimensional ◽  
Long Cycle Life ◽  
Excellent Electrochemical Performance ◽  
Reduced Graphene

We report the synthesis of a novel 2D hybrid nanosheet constructed by few layered MoSe2 grown on reduced graphene oxide (rGO), which exhibits excellent electrochemical performance as anodes for lithium ion batteries.

scholarly journals Sb nanosheet modified separator for Li–S batteries with excellent electrochemical performance

RSC Advances ◽  
2021 ◽  
Vol 11 (12) ◽  
pp. 6798-6803
Author(s):  
Linchao Zeng ◽  
Jianhui Zhu ◽  
Minsu Liu ◽  
Peixin Zhang
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Excellent Electrochemical Performance ◽  
First Time ◽  
Modified Separator

Antimony nanosheet modified separator is prepared for high performance Li–S batteries for the first time.

Mesoporous nickel cobalt manganese sulfide yolk–shell hollow spheres for high-performance electrochemical energy storage

2019 ◽  
Vol 6 (7) ◽  
pp. 1851-1860 ◽  
Author(s):  
Chengzhen Wei ◽  
Qingyun Chen ◽  
Cheng Cheng ◽  
Ran Liu ◽  
Qiang Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Performance ◽  
High Performance ◽  
Manganese Sulfide ◽  
Hollow Spheres ◽  
Electrochemical Energy Storage ◽  
Nickel Cobalt ◽  
Excellent Electrochemical Performance ◽  
Electrochemical Energy

Mesoporous Ni–Co–Mn sulfide yolk–shell hollow spheres have been prepared via a self-template route and show excellent electrochemical performance in supercapacitors.

scholarly journals Ultradispersed titanium dioxide nanoparticles embedded in a three-dimensional graphene aerogel for high performance sulfur cathodes

RSC Advances ◽  
2019 ◽  
Vol 9 (12) ◽  
pp. 6568-6575 ◽  
Author(s):  
Mengmeng Liu ◽  
Xiaohang Zhu ◽  
Tianye Ma ◽  
Congcong Zhang ◽  
Xiang Chen ◽  
...  
Keyword(s):  
Titanium Dioxide ◽  
Electrochemical Performance ◽  
Cathode Material ◽  
High Performance ◽  
Titanium Dioxide Nanoparticles ◽  
Three Dimensional ◽  
Graphene Aerogel ◽  
Excellent Electrochemical Performance ◽  
Sulfur Cathodes

GA–TiO2 composites as a cathode material realize an excellent electrochemical performance in Li–S batteries.

Rational design of multiple Prussian-blue analogues/NF composites for high-performance surpercapacitors

2020 ◽  
Vol 44 (25) ◽  
pp. 10359-10366
Author(s):  
Dengke Xiong ◽  
Shi-Cheng Wang ◽  
Chen Chen ◽  
Minli Gu ◽  
Fei-Yan Yi
Keyword(s):  
Electrochemical Performance ◽  
Prussian Blue ◽  
Chemical Etching ◽  
High Performance ◽  
Rational Design ◽  
One Pot ◽  
Prussian Blue Analogues ◽  
Excellent Electrochemical Performance

Multiple Prussian-blue analogues/NF composites were successfully fabricated through a one-pot chemical etching and growing process. The target materials NiCoxFe1−x-PBA/NF exhibited excellent electrochemical performance.

scholarly journals Self-template/activation nitrogen-doped porous carbon materials derived from lignosulfonate-based ionic liquids for high performance supercapacitors

RSC Advances ◽  
2020 ◽  
Vol 10 (60) ◽  
pp. 36504-36513
Author(s):  
Qinqin Xu ◽  
Xia Wang ◽  
Jian Cheng ◽  
Lin Zhang ◽  
Feng He ◽  
...  
Keyword(s):  
Ionic Liquids ◽  
Ion Exchange ◽  
Electrochemical Performance ◽  
Porous Carbon ◽  
High Performance ◽  
Carbon Materials ◽  
Supercapacitor Electrode ◽  
Nitrogen Doped ◽  
Ion Exchange Reaction ◽  
Excellent Electrochemical Performance

Without any additional template or activation agent, a high N-doped porous carbon was easily prepared by a simple ion exchange reaction and a following carbonization, and showed excellent electrochemical performance as a supercapacitor electrode.

Synthesis of high performance Li4Ti5O12 microspheres and TiO2 nanowires from natural ilmenite

RSC Advances ◽  
2014 ◽  
Vol 4 (75) ◽  
pp. 40111-40119 ◽  
Author(s):  
Feixiang Wu ◽  
Zhixing Wang ◽  
Xinhai Li ◽  
Huajun Guo
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Materials Science ◽  
Thermal Processes ◽  
Tio2 Nanowires ◽  
Excellent Electrochemical Performance ◽  
Synthesized Materials

In this work, natural ilmenite is transformed into either Li4Ti5O12 microspheres or TiO2 nanowires through a series of chemical and thermal processes by the combination of metallurgy and materials science. Both of the synthesized materials demonstrate excellent electrochemical performance.

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