A hierarchical composites constructed by ZIF-8 derived carbon core and Mn3O4/N-doped carbon shell as efficient polysulfide entrapment host for Li−S batteries

2021 ◽  
Vol 860 ◽  
pp. 158461
Author(s):  
Zhipeng Sun ◽  
Lujun Fang ◽  
Junjie Cai
Keyword(s):  
Carbon Shell ◽  
Hierarchical Composites ◽  
Carbon Core

Controllable fabrication of a N and B co-doped carbon shell on the surface of TiO2 as a support for boosting the electrochemical performances

2017 ◽  
Vol 5 (4) ◽  
pp. 1672-1678 ◽  
Author(s):  
Ying Chang ◽  
Conghui Yuan ◽  
Yuntong Li ◽  
Cheng Liu ◽  
Tong Wu ◽  
...  
Keyword(s):  
Shell Thickness ◽  
Pt Nanoparticles ◽  
Carbon Shell ◽  
Core Shell ◽  
Electrochemical Performances ◽  
Carbon Core ◽  
Controllable Fabrication ◽  
Co Doped

Pt nanoparticles loaded on TiO2@N,B co-doped carbon core–shell supports with tunable shell thickness possess enhanced electrochemical performances.

Synthesis of Carbon/Carbon Core/Shell Nanofibers by Co-Pyrolysis of Tetrahydrofuran and Ferrocene

2011 ◽  
Vol 306-307 ◽  
pp. 1211-1214
Author(s):  
Wen Jun Kang ◽  
Hai Bo Li ◽  
Yan Yan ◽  
Yi Tai Qian
Keyword(s):  
Carbon Materials ◽  
Reaction System ◽  
Carbon Shell ◽  
Iron Catalysts ◽  
Core Shell ◽  
Solid Carbon ◽  
Carbon Spheres ◽  
Graphene Layers ◽  
Carbon Core ◽  
20 Nm

Carbon/carbon core/shell nanofibers with length up to several micrometres have been prepared by co-pyrolysis of tetrahydrofuran and ferrocene in a stainless steel autoclave at 600 °C. The diameter of carbon core is ~10 nm, and the thickness of carbon shell is ~20 nm. It is found that the graphene layers of carbon core are perpendicular to the ones of carbon shell in stacking orientation. Comparative experiments confirm that the metallic iron catalysts, originating from the decomposition of ferrocene, are responsible for the formation of nanofibers. When the ferrocene is absence, only solid carbon spheres are observed. Moreover, hollow hexapod-like carbon materials can be obtained with water introduced into reaction system.

Edge-oriented MoS2 supported on nickel/carbon core–shell nanospheres for enhanced hydrogen evolution reaction performance

2019 ◽  
Vol 43 (16) ◽  
pp. 6146-6152 ◽  
Author(s):  
Yin Wang ◽  
Zegao Wang ◽  
Qian Yang ◽  
An Hua ◽  
Song Ma ◽  
...  
Keyword(s):  
Molybdenum Disulfide ◽  
Hydrogen Evolution ◽  
Hydrogen Evolution Reaction ◽  
Carbon Shell ◽  
Core Shell ◽  
Reaction Performance ◽  
Carbon Core

Edge-oriented molybdenum disulfide, growing on the surface of carbon shell with a nickel core, exhibits the enhanced performance on hydrogen evolution reaction.

SiC/HfyTa1−yCxN1−x/C ceramic nanocomposites with HfyTa1−yCxN1−x-carbon core–shell nanostructure and the influence of the carbon-shell thickness on electrical properties

2018 ◽  
Vol 6 (4) ◽  
pp. 855-864 ◽  
Author(s):  
Qingbo Wen ◽  
Zhaoju Yu ◽  
Yeping Xu ◽  
Yan Lu ◽  
Claudia Fasel ◽  
...  
Keyword(s):  
Electrical Conductivity ◽  
Electrical Properties ◽  
Shell Thickness ◽  
Carbon Shell ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Carbon Core ◽  
Core Shell Nanoparticles ◽  
Ceramic Nanocomposites

Thickness of the carbon shell on the HfyTa1−yCxN1−x-carbon core–shell nanoparticles significantly influences the electrical conductivity of the SiC/HfyTa1−yCxN1−x/C ceramic nanocomposites.

Effect of carbon shell thickness on the microwave absorption of magnetite-carbon core-shell nanoparticles

2016 ◽  
Vol 42 (13) ◽  
pp. 14548-14556 ◽  
Author(s):  
Omid Khani ◽  
Morteza Zargar Shoushtari ◽  
Mohammad Jazirehpour ◽  
Mohammad Hossein Shams
Keyword(s):  
Microwave Absorption ◽  
Shell Thickness ◽  
Carbon Shell ◽  
Core Shell ◽  
Shell Nanoparticles ◽  
Carbon Core ◽  
Core Shell Nanoparticles

TEM of grain growth and phase transformations during creep of SCS-6 silicon carbide fibers

1995 ◽  
Vol 53 ◽  
pp. 350-351
Author(s):  
L. A. Giannuzzi ◽  
C. A. Lewinsohn ◽  
C. E. Bakis ◽  
R. E. Tressler
Keyword(s):  
Silicon Carbide ◽  
Creep Rate ◽  
Vapor Deposition ◽  
Chemical Vapor ◽  
Primary Creep ◽  
Excess Carbon ◽  
Silicon Carbide Fibers ◽  
Sic Fiber ◽  
Carbon Core ◽  
Grain Width

The SCS-6 SiC fiber is a 142 μm diameter fiber consisting of four distinct regions of βSiC. These SiC regions vary in excess carbon content ranging from 10 a/o down to 5 a/o in the SiC1 through SiC3 region. The SiC4 region is stoichiometric. The SiC sub-grains in all regions grow radially outward from the carbon core of the fiber during the chemical vapor deposition processing of these fibers. In general, the sub-grain width changes from 50nm to 250nm while maintaining an aspect ratio of ~10:1 from the SiC1 through the SiC4 regions. In addition, the SiC shows a <110> texture, i.e., the {111} planes lie ±15° along the fiber axes. Previous has shown that the SCS-6 fiber (as well as the SCS-9 and the developmental SCS-50 μm fiber) undergoes primary creep (i.e., the creep rate constantly decreases as a function of time) throughout the lifetime of the creep test.

CHAMPION 1A

Alloy Digest ◽  
1990 ◽  
Vol 39 (10) ◽  
Keyword(s):  
Fracture Toughness ◽  
Tensile Properties ◽  
Heat Treating ◽  
Core Wire ◽  
Wire Electrode ◽  
Low Carbon ◽  
Carbon Core

Abstract Champion 1A is a flux coated, extra-low carbon core wire electrode developed to overcome many of the difficulties associated with welding chrome-moly and hard-to-weld steels. This datasheet provides information on composition, hardness, and tensile properties as well as fracture toughness. It also includes information on heat treating and joining. Filing Code: SA-451. Producer or source: Champion Welding Products Inc..

Coupling hierarchical iron cobalt selenide arrays with N-doped carbon as advanced anodes for sodium ion storage

2021 ◽  
Author(s):  
Peijia Wang ◽  
Jiajie Huang ◽  
Jing Zhang ◽  
Liang Wang ◽  
Peiheng Sun ◽  
...  
Keyword(s):  
Electrochemical Performance ◽  
Sodium Ion ◽  
Carbon Shell ◽  
Carbon Cloth ◽  
Sodium Ion Batteries ◽  
Half Cell ◽  
Iron Cobalt ◽  
Ion Storage ◽  
Cobalt Selenide ◽  
Sodium Ion Storage

Hierarchically core–branched iron cobalt selenide arrays coated with N-doped carbon shell were designed and synthesized on carbon cloth, showing prominent electrochemical performance both in half-cell and full cell sodium ion batteries.

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