An exquisite electrode material using aramid nanofibers with enhanced discharge capacity and catalytic conversion of polysulfides

2020 ◽  
Vol 8 (40) ◽  
pp. 21163-21172
Author(s):  
Kexuan Liao ◽  
HuanHuan Wei ◽  
Penghui Shi ◽  
Jinchen Fan ◽  
Qunjie Xu ◽  
...  

Composite materials obtained by in situ growth of metal nanoparticles on a three-dimensional carbon network are approved as promising electrode materials.

2015 ◽  
Vol 3 (5) ◽  
pp. 1953-1960 ◽  
Author(s):  
Lingjie Li ◽  
Jing Xu ◽  
Jinglei Lei ◽  
Jie Zhang ◽  
Frank McLarnon ◽  
...  

The Ni(OH)2 hexagonal platelets were in situ fabricated on Ni foam as a binder-free supercapacitor electrode material with high performance and excellent cycling stability by a one-step, cost-effective, green hydrothermal treatment of three-dimensional (3D) Ni foam in a 15 wt% H2O2 aqueous solution.


Author(s):  
Xufei Liu ◽  
Peng Mei ◽  
Yu Dou ◽  
Rui Luo ◽  
Yusuke Yamauchi ◽  
...  

The urgent desire for high-energy lithium-ion batteries (LIBs) has motivated scientists to develop large-capacity electrode materials with innovative compositions and/or architectures. Herein, we report a three-dimensional (3D) hierarchical MoO2/MoS2/C heterostructure...


Biomimetics ◽  
2021 ◽  
Vol 6 (3) ◽  
pp. 45
Author(s):  
Larisa Zemskova ◽  
Vladimir Silant’ev ◽  
Eduard Tokar ◽  
Andrei Egorin

Data related to the fabrication of hybrid materials based on the polysaccharide chitosan were systematized and reviewed. The possibility of using chitosan as a “host” matrix for in situ synthesis of inorganic compounds for the preparation of various types of composite materials were investigated. Coprecipitation of metal oxides/hydroxides (Fe, Ni, Al, Zr, Cu and Mn) with chitosan was carried out through the alkalinization of solutions containing metal salts and chitosan, with the addition of ammonia or alkali solutions, homogeneous hydrolysis of urea, or electrophoretic deposition on the cathode. The synthesis of transition metal ferrocyanides and hydroxyapatite was achieved from precursor salts in a chitosan solution with simultaneous alkalinization. The mechanism of composite formation during the coprecipitation process of inorganic compounds with chitosan is discussed. Composite materials are of interest as sorbents, coatings, sensors, and precursors for the production of ceramic and electrode materials.


Nanoscale ◽  
2019 ◽  
Vol 11 (44) ◽  
pp. 21479-21486 ◽  
Author(s):  
Lechen Diao ◽  
Biao Zhang ◽  
Qiaozhi Sun ◽  
Ning Wang ◽  
Naiqin Zhao ◽  
...  

MoS2/Co9S8 heterostructures were in situ grown on three-dimensional carbon network substrates with interconnected hierarchical pores, exhibit excellent alkaline HER activity.


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