Ni foam supported quasi-core-shell structure of ultrathin Ti 3 C 2 nanosheets through electrostatic layer-by-layer self-assembly as high rate-performance electrodes of supercapacitors

2017 ◽  
Vol 369 ◽  
pp. 78-86 ◽  
Author(s):  
Yapeng Tian ◽  
Chenhui Yang ◽  
Wenxiu Que ◽  
Yucheng He ◽  
Xiaobin Liu ◽  
...  
Keyword(s):  
Self Assembly ◽  
Shell Structure ◽  
High Rate ◽  
Core Shell ◽  
Layer By Layer ◽  
Rate Performance ◽  
Ni Foam ◽  
Core Shell Structure ◽  
High Rate Performance

scholarly journals Ni(OH)2@Ni core-shell nanochains as low-cost high-rate performance electrode for energy storage applications

2019 ◽  
Vol 9 (1) ◽  
Author(s):  
Mario Urso ◽  
Giacomo Torrisi ◽  
Simona Boninelli ◽  
Corrado Bongiorno ◽  
Francesco Priolo ◽  
...  
Keyword(s):  
Energy Storage ◽  
Low Cost ◽  
High Rate ◽  
Core Shell ◽  
Rate Performance ◽  
Energy Storage Applications ◽  
High Rate Performance

scholarly journals Monodispersed LiFePO4@C Core-Shell Nanoparticles Anchored on 3D Carbon Cloth for High-Rate Performance Binder-Free Lithium Ion Battery Cathode

2020 ◽  
Vol 2020 ◽  
pp. 1-11
Author(s):  
Boqiao Li ◽  
Wei Zhao ◽  
Chen Zhang ◽  
Zhe Yang ◽  
Fei Dang ◽  
...  
Keyword(s):  
Lithium Ion Battery ◽  
Lithium Ion ◽  
Current Collector ◽  
High Rate ◽  
Core Shell ◽  
Carbon Cloth ◽  
Rate Performance ◽  
Active Materials ◽  
Binder Free ◽  
High Rate Performance

Owing to high safety, low cost, nontoxicity, and environment-friendly features, LiFePO4 that is served as the lithium ion battery cathode has attracted much attention. In this paper, a novel 3D LiFePO4@C core-shell configuration anchored on carbon cloth is synthesized by a facile impregnation sol-gel approach. Through the binder-free structure, the active materials can be directly combined with the current collector to avoid the falling of active materials and achieve the high-efficiency lithium ion and electron transfer. The traditional slurry-casting technique is applicable for pasting LiFePO4@C powders onto the 2D aluminum foil current collector (LFP-Al). By contrast, LFP-CC exhibits a reversible specific capacity of 140 mAh·g-1 and 93.3 mAh·g-1 at 1C and 10C, respectively. After 500 cycles, no obvious capacity decay can be observed at 10C while keeping the coulombic efficiency above 98%. Because of its excellent capacity, high-rate performance, stable electrochemical performance, and good flexibility, this material has great potentials of developing the next-generation high-rate performance lithium ion battery and preparing the binder-free flexible cathode.

scholarly journals A Facile Route to the Preparation of Highly Uniform ZnO@TiO2 Core-Shell Nanorod Arrays with Enhanced Photocatalytic Properties

2017 ◽  
Vol 2017 ◽  
pp. 1-8 ◽  
Author(s):  
Yuanyuan Zhao ◽  
Peifei Tong ◽  
Dong Ma ◽  
Bing Li ◽  
Qinzhuang Liu ◽  
...  
Keyword(s):  
Low Temperature ◽  
Shell Structure ◽  
Photocatalytic Decomposition ◽  
Thermal Method ◽  
Core Shell ◽  
Layer By Layer ◽  
Nanorod Arrays ◽  
Large Area ◽  
Core Shell Structure ◽  
Highly Uniform

Design and synthesis of ZnO@TiO2 core-shell nanorod arrays as promising photocatalysts have been widely reported. However, it remains a challenge to develop a low-temperature, low-cost, and environmentally friendly method to prepare ZnO@TiO2 core-shell nanorod arrays over a large area for future device applications. Here, a facile, green, and efficient route is designed to prepare the ZnO@TiO2 nanorod arrays with a highly uniform core-shell structure over a large area on Zn wafer via a vapor-thermal method at relatively low temperature. The growth mechanism is proposed as a layer-by-layer assembly. The photocatalytic decomposition reaction of methylene blue (MB) reveals that the ZnO@TiO2 core-shell nanorod arrays have excellent photocatalytic activities when compared with the performance of the ZnO nanorod arrays. The improved photocatalytic activity could be attributed to the core-shell structure, which can effectively reduce the recombination rate of electron-hole pairs, significantly increase the optical absorption range, and offer a high density of surface active catalytic sites for the decomposition of organic pollutants. In addition, it is very easy to separate or recover ZnO@TiO2 core-shell nanorod array catalysts when they are used in water purification processes.

In situ self-catalyzed formation of core–shell LiFePO4@CNT nanowires for high rate performance lithium-ion batteries

2013 ◽  
Vol 1 (25) ◽  
pp. 7306 ◽  
Author(s):  
Jinli Yang ◽  
Jiajun Wang ◽  
Yongji Tang ◽  
Dongniu Wang ◽  
Biwei Xiao ◽  
...  
Keyword(s):  
Lithium Ion Batteries ◽  
Lithium Ion ◽  
High Rate ◽  
Core Shell ◽  
Rate Performance ◽  
High Rate Performance

Hierarchical core/shell structure of MnO2@polyaniline composites grown on carbon fiber paper for application in pseudocapacitors

2015 ◽  
Vol 17 (44) ◽  
pp. 29874-29879 ◽  
Author(s):  
MinHo Yang ◽  
Seok Bok Hong ◽  
Bong Gill Choi
Keyword(s):  
Carbon Fiber ◽  
Shell Structure ◽  
Rate Capability ◽  
High Specific Capacitance ◽  
High Rate ◽  
Core Shell ◽  
High Rate Capability ◽  
Carbon Fiber Paper ◽  
Core Shell Structure ◽  
Polyaniline Composites

Hierarchical core/shell structured arrays of MnO2@polyaniline nanosheets synthesized on the surface of carbon fiber paper, showed high specific capacitance, high rate capability, and good cycle life.

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