scholarly journals Effect of heat treatment temperature on microstructure and electrochemical properties of hollow carbon spheres prepared in high-pressure argon

2011 ◽  
Vol 34 (7) ◽  
pp. 1707-1714 ◽  
Author(s):  
Boyang Liu ◽  
Yun Zhou ◽  
Dechang Jia ◽  
Pengjian Zuo ◽  
Yingfeng Shao ◽  
...  
Keyword(s):  
Heat Treatment ◽  
High Pressure ◽  
Electrochemical Properties ◽  
Heat Treatment Temperature ◽  
Treatment Temperature ◽  
Carbon Spheres ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

The Study of TiO2 Whiskers Prepared by Melt Phase-Splitting Method and their Photocatalytic Properties

2011 ◽  
Vol 287-290 ◽  
pp. 582-587
Author(s):  
Shui Jing Gao ◽  
Wen Li Zhang ◽  
Gui Qin Hou
Keyword(s):  
Heat Treatment ◽  
High Pressure ◽  
Heat Treatment Temperature ◽  
Splitting Method ◽  
Treatment Temperature ◽  
Photocatalytic Properties ◽  
Photocatalytic Efficiency ◽  
Crystal Type ◽  
Pressure Phase ◽  
Melt Phase

This paper studied the preparation of TiO2 whisker with melt phase-splitting method, which used tataniferous blast-furnance as the main raw materrial. XRD and SEM were used to research the phase and morphology of the sample, and by the same time, the photocatalytic properties of TiO2 crystal-beards was tested.The result have shown:the size of TiO2 crystal-beards was sub-micron rank, the crystal type wasβ-TiO2 of orthorhombic high-pressure phase. The generation of TiO2 crystal-beards were effected mainly by the content of Na2O and TiO2, and the heat treatment temperature. The sample had certain photocatalytic properties and the highest photocatalytic efficiency was 56%.

Rational design of yolk–shell silicon dioxide@hollow carbon spheres as advanced Li–S cathode hosts

Nanoscale ◽  
2017 ◽  
Vol 9 (39) ◽  
pp. 14881-14887 ◽  
Author(s):  
Ruxing Wang ◽  
Kangli Wang ◽  
Shu Gao ◽  
Mao Jiang ◽  
Min Zhou ◽  
...  
Keyword(s):  
Silicon Dioxide ◽  
Electrochemical Properties ◽  
Rational Design ◽  
Chemical Adsorption ◽  
Carbon Spheres ◽  
Physical Barrier ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

Benefits from both physical barrier and chemical adsorption, the SiO2@HC/S composite exhibits excellent electrochemical properties and an extraordinary anti-self-discharge feature.

MoS2 nanosheets grown on hollow carbon spheres as a strong polysulfide anchor for high performance lithium sulfur batteries

Nanoscale ◽  
2020 ◽  
Vol 12 (46) ◽  
pp. 23636-23644
Author(s):  
Miaoran Li ◽  
Huiyuan Peng ◽  
Yang Pei ◽  
Fang Wang ◽  
Ying Zhu ◽  
...  
Keyword(s):  
Electrochemical Properties ◽  
High Performance ◽  
Carbon Spheres ◽  
Mos2 Nanosheets ◽  
Adsorption Ability ◽  
Strong Adsorption ◽  
Lithium Sulfur Batteries ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres ◽  
Lithium Sulfur

The MoS2 nanosheets grown at the surface of hollow carbon spheres with uniform morphology exhibit excellent electrochemical properties and strong adsorption ability on lithium polysulfides.

Nanoporous nitrogen-doped graphitic carbon hollow spheres with enhanced electrochemical properties

2021 ◽  
Vol 5 (20) ◽  
pp. 7645-7653
Author(s):  
Partha Bairi ◽  
Kausik Sardar ◽  
Madhupriya Samanta ◽  
Kausik Chanda ◽  
Kalyan Kumar Chattopadhyay
Keyword(s):  
Electrochemical Properties ◽  
Oxygen Reduction ◽  
Nitrogen Doping ◽  
Hollow Spheres ◽  
Graphitic Carbon ◽  
Carbon Spheres ◽  
Nitrogen Doped ◽  
Reduction Activity ◽  
Hollow Carbon ◽  
Hollow Carbon Spheres

The direct pyrolysis of nanostructured poly(N-methylaniline) (PNMA) produced nanoporous hollow carbon spheres with a high atomic percentage of nitrogen doping, and these displayed enhanced oxygen reduction activity and supercapacitive properties.

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