Nitrogen-enriched carbon spheres coupled with graphitic carbon nitride nanosheets for high performance supercapacitors

2018 ◽  
Vol 47 (29) ◽  
pp. 9724-9732 ◽  
Author(s):  
Jun Zhu ◽  
Lirong Kong ◽  
Xiaoping Shen ◽  
Hu Zhou ◽  
Guoxing Zhu ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
High Performance ◽  
Carbon Nitride ◽  
Clean Energy ◽  
Carbon Spheres ◽  
Energy Storage Devices ◽  
Step Method ◽  
Storage Devices ◽  
Excellent Electrochemical Performance ◽  
Carbon Nitride Nanosheets

A facile two-step method is proposed to synthesize g-CN/NCS composites, which exhibit an excellent electrochemical performance in clean energy storage devices.

Rich sulfur doped porous carbon materials derived from ginkgo leaves for multiple electrochemical energy storage devices

2017 ◽  
Vol 5 (5) ◽  
pp. 2204-2214 ◽  
Author(s):  
Enchao Hao ◽  
Wei Liu ◽  
Shuang Liu ◽  
Yuan Zhang ◽  
Huanlei Wang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Performance ◽  
Porous Carbon ◽  
Carbon Materials ◽  
Multilayered Structure ◽  
Electrochemical Energy Storage ◽  
Energy Storage Devices ◽  
Carbon Nanosheets ◽  
Storage Devices ◽  
Excellent Electrochemical Performance

Based on the unique multilayered structure of ginkgo leaves, interconnected carbon nanosheets with rich micro/meso pores have been fabricated, showing excellent electrochemical performance in multiple energy storage devices.

Facile preparation of MoS2/maleic acid composite as high-performance anode for lithium ion batteries

2020 ◽  
Vol 44 (37) ◽  
pp. 15887-15894
Author(s):  
Jingshi Wang ◽  
Zhigang Shen ◽  
Min Yi
Keyword(s):  
Electrochemical Performance ◽  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Composite Anode ◽  
Step Method ◽  
Practical Applications ◽  
Excellent Electrochemical Performance ◽  
One Step ◽  
Facile Preparation

We propose a facile one-step method to prepare a MoS2 composite anode with excellent electrochemical performance and potential for practical applications in lithium ion batteries.

Nitrogen-doped porous carbons derived from a natural polysaccharide for multiple energy storage devices

2018 ◽  
Vol 2 (2) ◽  
pp. 381-391 ◽  
Author(s):  
Yongpeng Cui ◽  
Huanlei Wang ◽  
Xiaonan Xu ◽  
Yan Lv ◽  
Jing Shi ◽  
...  
Keyword(s):  
Energy Storage ◽  
Electrochemical Performance ◽  
Carbon Nanomaterials ◽  
Porous Carbons ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Nitrogen Doped ◽  
Natural Polysaccharide ◽  
Excellent Electrochemical Performance ◽  
One Step

N-Doped carbon nanomaterials can be easily synthesized by a one-step carbonization/activation method, which can achieve excellent electrochemical performance for multiple energy storage.

Orderly Arranged Bead-Chain Cu2O-Mn3O4-NiO Ternary Nanocomposites with High Specific Capacitance for Supercapacitors

NANO ◽  
2020 ◽  
Vol 15 (06) ◽  
pp. 2050082
Author(s):  
Lei Su ◽  
Chunyong Zhang ◽  
Li Shu ◽  
Linna Huang ◽  
Jianning Li ◽  
...  
Keyword(s):  
Metal Oxide ◽  
Electrochemical Performance ◽  
Specific Capacitance ◽  
Electrode Materials ◽  
High Specific Capacitance ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Electrochemical Tests ◽  
Excellent Electrochemical Performance ◽  
Oxide Particles

A series of metal oxide nanocomposites have been successfully synthesized by electrospinning technology. The obtained nanocomposites (Cu2O-Mn3O4-NiO) are an ordered arrangement of metal oxide particles (10[Formula: see text]nm), with the shape like bead chain. The acquired Cu2O-Mn3O4-NiO ternary nanocomposites were used as electrode materials to manufacture a supercapacitor. Electrochemical tests showed that the synthesis of nanocomposites made of electrode materials had good electrochemical performance in 6[Formula: see text]mol/L KOH electrolyte. The results showed that at a scan rate of 5[Formula: see text]mV/s, the specific capacitance of Cu2O-Mn3O4-NiO had a larger specific capacitance of 1306[Formula: see text]F/g than NiO, Cu2O-NiO and Mn3O4-NiO. The excellent electrochemical performance showed that the electrostatic spinning method is an effective technology for developing nanocomposites for energy storage devices.

CoOOH ultrathin nanoflake arrays aligned on nickel foam: fabrication and use in high-performance supercapacitor devices

2016 ◽  
Vol 4 (33) ◽  
pp. 12833-12840 ◽  
Author(s):  
Dongbin Zhang ◽  
Xianggui Kong ◽  
Yufei Zhao ◽  
Meihong Jiang ◽  
Xiaodong Lei
Keyword(s):  
Graphene Oxide ◽  
Energy Storage ◽  
Reduced Graphene Oxide ◽  
High Performance ◽  
Nickel Foam ◽  
Asymmetric Supercapacitor ◽  
Energy Storage Devices ◽  
Step Method ◽  
Storage Devices ◽  
Reduced Graphene

A CoOOH/NF ultrathin nanoflake array is fabricated by a facile two-step method. Furthermore, an asymmetric supercapacitor was assembled with CoOOH/NF and reduced graphene oxide, displaying excellent properties as energy storage devices.

Atomically dispersed metal active centers as a chemically tunable platform for energy storage devices

2020 ◽  
Vol 8 (31) ◽  
pp. 15358-15372
Author(s):  
Huicong Xia ◽  
Gan Qu ◽  
Hengbo Yin ◽  
Jianan Zhang
Keyword(s):  
Energy Storage ◽  
Electrochemical Performance ◽  
Reaction Kinetics ◽  
Chemical Reaction ◽  
Energy Storage Devices ◽  
Active Centers ◽  
Storage Devices ◽  
Excellent Electrochemical Performance

Atomically dispersed materials with maximized atom utilization, abundant active centers, and ultrahigh chemical reaction activity can accelerate the reaction kinetics in energy storage devices and have excellent electrochemical performance.

scholarly journals Nitrogen–sulfur dual-doped porous carbon spheres/sulfur composites for high-performance lithium–sulfur batteries

RSC Advances ◽  
2019 ◽  
Vol 9 (29) ◽  
pp. 16571-16577 ◽  
Author(s):  
Liping Zhao ◽  
Gang Liu ◽  
Peng Zhang ◽  
Liqun Sun ◽  
Lina Cong ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Porous Carbon ◽  
High Performance ◽  
Positive Electrode ◽  
Carbon Spheres ◽  
Excellent Electrochemical Performance ◽  
Lithium Sulfur Batteries ◽  
Porous Carbon Spheres ◽  
Lithium Sulfur

Simultaneously introduced nitrogen–sulfur through one reagent. The as-prepared PCS-NS/S composites exhibited excellent electrochemical performance as positive electrode for Li–S battery.

Mixed ternary metal MFeCo (M = Al, Mg, Cu, Zn, or Ni) oxide electrodes for high-performance energy storage devices

Ionics ◽  
2021 ◽  
Author(s):  
Morteza Saghafi Yazdi ◽  
Seied Ali Hosseini ◽  
Zeynodin Karami ◽  
Ali Olamaee ◽  
Mohammad Abedini ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Performance ◽  
Energy Storage Devices ◽  
Storage Devices ◽  
Oxide Electrodes ◽  
Ternary Metal ◽  
Ni Oxide

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.

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