Poly(3,4-ethylenedioxythiophene)/MoS2 nanocomposites with enhanced electrochemical capacitance performance

RSC Advances ◽  
2014 ◽  
Vol 4 (100) ◽  
pp. 56926-56932 ◽  
Author(s):  
Jin Wang ◽  
Zongchao Wu ◽  
Huabing Yin ◽  
Wei Li ◽  
Yang Jiang
Keyword(s):  
High Performance ◽  
Synthesis Method ◽  
Good Stability ◽  
Facile Synthesis ◽  
Electrochemical Capacitance ◽  
Capacitance Performance

A facile synthesis method of PEDOT/MoS2 nanocomposites has been developed via in situ polymerization, and this work offers a strategy for preparing supercapacitors with high performance and good stability.

Facile synthesis of a reduced graphene oxide/cobalt sulfide hybrid and its electrochemical capacitance performance

RSC Advances ◽  
2014 ◽  
Vol 4 (55) ◽  
pp. 29216-29222 ◽  
Author(s):  
Kai Dai ◽  
Dongpei Li ◽  
Luhua Lu ◽  
Qi Liu ◽  
Jiali Lv ◽  
...  
Keyword(s):  
Graphene Oxide ◽  
Reduced Graphene Oxide ◽  
High Specific Capacitance ◽  
Cobalt Sulfide ◽  
Facile Synthesis ◽  
Electrochemical Capacitance ◽  
Reduced Graphene ◽  
Capacitance Performance ◽  
Hydrothermal Approach

Reduced graphene oxide (RGO) in situ composites with cobalt sulfide (CoS) are achieved through a facile hydrothermal approach, and RGO/CoS presents a high specific capacitance of 1130 F g−1.

Facile synthesis of Ni0.85Se on Ni foam for high-performance asymmetric capacitors

RSC Advances ◽  
2015 ◽  
Vol 5 (99) ◽  
pp. 81474-81481 ◽  
Author(s):  
Chao Gong ◽  
Miaoliang Huang ◽  
Jinfang Zhang ◽  
Min Lai ◽  
Leqing Fan ◽  
...  
Keyword(s):  
High Performance ◽  
Hydrothermal Process ◽  
Ni Foam ◽  
Facile Synthesis ◽  
Facile Hydrothermal Process ◽  
Asymmetric Capacitors

Ni0.85Se was in situ grown on Ni foam via a facile hydrothermal process as a high-performance electrode for supercapacitors.

scholarly journals In-Situ Synthesis of Heterostructured Carbon-Coated Co/MnO Nanowire Arrays for High-Performance Anodes in Asymmetric Supercapacitors

Molecules ◽  
2020 ◽  
Vol 25 (14) ◽  
pp. 3218
Author(s):  
Guoqing Chen ◽  
Xuming Zhang ◽  
Yuanhang Ma ◽  
Hao Song ◽  
Chaoran Pi ◽  
...  
Keyword(s):  
Electron Transfer ◽  
High Performance ◽  
Negative Electrode ◽  
High Energy ◽  
High Energy Density ◽  
Vanadium Nitride ◽  
Carbon Cloth ◽  
Energy Storage Devices ◽  
Capacitance Performance

Structural design is often investigated to decrease the electron transfer depletion in/on the pseudocapacitive electrode for excellent capacitance performance. However, a simple way to improve the internal and external electron transfer efficiency is still challenging. In this work, we prepared a novel structure composed of cobalt (Co) nanoparticles (NPs) embedded MnO nanowires (NWs) with an N-doped carbon (NC) coating on carbon cloth (CC) by in situ thermal treatment of polydopamine (PDA) coated MnCo2O4.5 NWs in an inert atmosphere. The PDA coating was carbonized into the NC shell and simultaneously reduced the MnCo2O4.5 to Co NPs and MnO NWs, which greatly improve the surface and internal electron transfer ability on/in MnO boding well supercapacitive properties. The hybrid electrode shows a high specific capacitance of 747 F g−1 at 1 A g−1 and good cycling stability with 93% capacitance retention after 5,000 cycles at 10 A g−1. By coupling with vanadium nitride with an N-doped carbon coating (VN@NC) negative electrode, the asymmetric supercapacitor delivers a high energy density of 48.15 Wh kg−1 for a power density of 0.96 kW kg−1 as well as outstanding cycling performance with 82% retention after 2000 cycles at 10 A g−1. The electrode design and synthesis suggests large potential in the production of high-performance energy storage devices.

Facile synthesis of an Fe3O4/FeO/Fe/C composite as a high-performance anode for lithium-ion batteries

RSC Advances ◽  
2016 ◽  
Vol 6 (92) ◽  
pp. 89715-89720 ◽  
Author(s):  
Di Li ◽  
Kangli Wang ◽  
Hongwei Tao ◽  
Xiaohong Hu ◽  
Shijie Cheng ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
High Performance ◽  
Lithium Ion ◽  
Facile Synthesis ◽  
Synthesis Route ◽  
Solid Synthesis

An Fe3O4/FeO/Fe/C nanocomposite is prepared via a facile and scalable in situ-reduction solid synthesis route and is used as a high-performance LIB anode.

scholarly journals Facile Synthesis of Spherical TiO2 Hollow Nanospheres with a Diameter of 150 nm for High-Performance Mesoporous Perovskite Solar Cells

Materials ◽  
2021 ◽  
Vol 14 (3) ◽  
pp. 629
Author(s):  
Hoang Van Quy ◽  
Dang Hai Truyen ◽  
Sangmo Kim ◽  
Chung Wung Bark
Keyword(s):  
Solar Cells ◽  
High Performance ◽  
Short Circuit ◽  
Perovskite Solar Cells ◽  
Synthesis Method ◽  
Short Circuit Current ◽  
Transport Layer ◽  
Electron Transport Layer ◽  
Hollow Nanospheres ◽  
Facile Synthesis

The electron transport layer (ETL) of organic–inorganic perovskite solar cells plays an important role in their power conversion efficiency (PCE). In this study, TiO2 hollow nanospheres with a diameter of 150 nm were prepared by a facile synthesis method. The synthesized TiO2 hollow nanospheres had a highly porous structure with a surface area of 85.23 m2 g−1, which is significantly higher than commercial TiO2 (P25) (54.32 m2 g−1), indicating that they can form an ideal mesoporous layer for Formamidinium iodide-based perovskite solar cells (PSCs). In addition, the nanospheres achieved a remarkable perovskite performance, and the average PCE increased from 12.87% to 14.27% with a short circuit current density of 22.36 mAcm−2, an open voltage of 0.95 V, and a fill factor of 0.65. The scanning electron microscopy images revealed that the enhanced PCE could be due to the improved carrier collection and transport properties of the nanosphere, which enabled efficient filtration of perovskite into the TiO2 mesoporous ETL. The TiO2 hollow nanospheres fabricated in this study show high potential as a high-quality ETL material for efficient (FAPbI3)0.97(MAPbBr3)0.03-based PSCs.

Incorporation of homogeneous Co3O4 into a nitrogen-doped carbon aerogel via a facile in situ synthesis method: implications for high performance asymmetric supercapacitors

2016 ◽  
Vol 4 (24) ◽  
pp. 9542-9554 ◽  
Author(s):  
Guanglin Sun ◽  
Liya Ma ◽  
Jiabing Ran ◽  
Xinyu Shen ◽  
Hua Tong
Keyword(s):  
High Performance ◽  
Synthesis Method ◽  
Carbon Aerogel ◽  
Drying Process ◽  
Asymmetric Supercapacitors ◽  
Nitrogen Doped ◽  
Coating Method ◽  
One Step ◽  
Nitrogen Doped Carbon

A novel high-performance electrode material, nitrogen-doped carbon aerogel/cobalt oxide (NCA/Co3O4) material, was prepared by a facile, one step and in situ coating method, followed by a freeze-drying process.

scholarly journals Polypyrrole Chains Decorated on CoS Spheres: A Core-Shell Like Heterostructure for High-Performance Microwave Absorption

Nanomaterials ◽  
2020 ◽  
Vol 10 (1) ◽  
pp. 166 ◽  
Author(s):  
Hui Liu ◽  
Guangzhen Cui ◽  
Ling Li ◽  
Zhi Zhang ◽  
Xuliang Lv ◽  
...  
Keyword(s):  
Microwave Absorption ◽  
High Performance ◽  
In Situ Polymerization ◽  
Impedance Matching ◽  
Synthesis Method ◽  
Interfacial Polarization ◽  
Cobalt Sulfide ◽  
Core Shell ◽  
Loss Mechanism

Cobalt sulfide composites have exhibited great potential in terms of microwave absorption, owing to their low price, relatively high capacitance, and excellent electrocatalytic activity. Thus, a novel core-shell like structure comprising cobalt sulfide@polypyrrole (CoS@PPy) composite was synthesized by a facile solvothermal synthesis method and in situ polymerization. When coated by the heterostructure polypyrrole aerogel, CoS@PPy composite exhibited excellent microwave absorption properties with an optimal reflection loss (RL) of −41.8 dB at 6.96 GHz. Furthermore, the absorption bandwidth (RL < −10 dB) of 5.4 GHz could be reached at a coating thickness of 2.05 mm, probably attributing to the synergistic effect of good impedance matching, interfacial polarization, dipole polarization, and conductivity loss. Moreover, this work proposed a loss mechanism mode which probably occurred in the CoS@PPy composites. It was demonstrated that the CoS@PPy composite is a promising material in the field of electromagnetic wave absorption.

scholarly journals Facile synthesis of carbon nanobranches towards cobalt ion sensing and high-performance micro-supercapacitors

2019 ◽  
Vol 1 (9) ◽  
pp. 3614-3620 ◽  
Author(s):  
Qiao-Ling Chen ◽  
Xingjiang Wu ◽  
Hengyang Cheng ◽  
Qing Li ◽  
Su Chen
Keyword(s):  
High Performance ◽  
Facile Synthesis ◽  
Cobalt Ion ◽  
Ion Sensing

A facile strategy is developed for fabrication of carbon nanobranches (CNBs) via in situ pyrolysis of starch.

In situ, facile synthesis of La0.8Sr0.2MnO3/nitrogen-doped graphene: a high-performance catalyst for rechargeable Li-O2 batteries

Ionics ◽  
2017 ◽  
Vol 23 (9) ◽  
pp. 2241-2250 ◽  
Author(s):  
Xinli Chen ◽  
Susu Chen ◽  
Bo Nan ◽  
Fanli Jia ◽  
Zhouguang Lu ◽  
...  
Keyword(s):  
High Performance ◽  
Facile Synthesis ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene
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