Anthozoan-like Porous Nanocages with Nano-Cobalt Armed CNTs Multifunctional Layer as Cathode Material for High-stable Na-S Battery

2022 ◽  
Author(s):  
Hui Liu ◽  
Yuanke Wu ◽  
Pan Liu ◽  
Han Wang ◽  
Mao-Wen Xu ◽  
...  
Keyword(s):  
Cathode Material ◽  
Porous Carbon ◽  
Volume Expansion ◽  
Room Temperature ◽  
Electronic Conductivity ◽  
Shuttle Effect ◽  
Nitrogen Doped ◽  
The Poor ◽  
Capacity Decay

The capacity decay of room-temperature Na-S batteries is mainly caused by the poor electronic conductivity, shuttle effect, and volume expansion of sulfur/polysulfides (NaPSs). Herein, anthozoan-like nitrogen-doped porous carbon nanocages with...

A three-dimensional interconnected nitrogen-doped graphene-like porous carbon-modified separator for high-performance Li–S batteries

2020 ◽  
Vol 4 (8) ◽  
pp. 4264-4272
Author(s):  
Wen Huang ◽  
Daqian Ruan ◽  
Hui Chen ◽  
Kai Hu ◽  
Juan Wen ◽  
...  
Keyword(s):  
Porous Carbon ◽  
High Performance ◽  
Three Dimensional ◽  
Shuttle Effect ◽  
Nitrogen Doped ◽  
Nitrogen Doped Graphene ◽  
Doped Graphene ◽  
Lithium Sulfur ◽  
Modified Separator ◽  
Capacity Decay

Suppressing rapid capacity decay caused by the shuttle effect of dissolved lithium polysulfides between two electrodes is crucial to the realization of a practical lithium–sulfur (Li–S) batteries.

Levulinic acid hydrogenation to γ-valerolactone over single Ru atoms on a TiO2@nitrogen doped carbon support

2021 ◽  
Author(s):  
Kaili Zhang ◽  
Qinglei Meng ◽  
Haihong Wu ◽  
Tongying Yuan ◽  
Shitao Han ◽  
...  
Keyword(s):  
Porous Carbon ◽  
Levulinic Acid ◽  
Room Temperature ◽  
Carbon Support ◽  
Complete Conversion ◽  
Turnover Frequency ◽  
Nitrogen Doped ◽  
Nitrogen Doped Carbon

TiO2@nitrogen doped porous carbon dispersed single Ru atom catalyst (Ru/TiO2@CN) efficiently transforms levulinic acid into γ-valerolactone at room temperature in water with a turnover frequency of 278 molGVL molRu−1 h−1 at complete conversion.

scholarly journals Nickel sulfide nanocrystals on nitrogen-doped porous carbon nanotubes with high-efficiency electrocatalysis for room-temperature sodium-sulfur batteries

2019 ◽  
Vol 10 (1) ◽  
Author(s):  
Zichao Yan ◽  
Jin Xiao ◽  
Weihong Lai ◽  
Li Wang ◽  
Florian Gebert ◽  
...  
Keyword(s):  
Carbon Nanotubes ◽  
Porous Carbon ◽  
Density Functional ◽  
Room Temperature ◽  
Lewis Base ◽  
Nitrogen Doped ◽  
High Electronic Conductivity ◽  
Sulfur Host ◽  
Sodium Sulfur ◽  
Sulfur Cathodes

Abstract Polysulfide dissolution and slow electrochemical kinetics of conversion reactions lead to low utilization of sulfur cathodes that inhibits further development of room-temperature sodium-sulfur batteries. Here we report a multifunctional sulfur host, NiS2 nanocrystals implanted in nitrogen-doped porous carbon nanotubes, which is rationally designed to achieve high polysulfide immobilization and conversion. Attributable to the synergetic effect of physical confinement and chemical bonding, the high electronic conductivity of the matrix, closed porous structure, and polarized additives of the multifunctional sulfur host effectively immobilize polysulfides. Significantly, the electrocatalytic behaviors of the Lewis base matrix and the NiS2 component are clearly evidenced by operando synchrotron X-ray diffraction and density functional theory with strong adsorption of polysulfides and high conversion of soluble polysulfides into insoluble Na2S2/Na2S. Thus, the as-obtained sulfur cathodes exhibit excellent performance in room-temperature Na/S batteries.

PdCoNi nanoparticles supported on nitrogen-doped porous carbon nanosheets for room temperature dehydrogenation of formic acid

2019 ◽  
Vol 44 (23) ◽  
pp. 11675-11683 ◽  
Author(s):  
Zhong Dong ◽  
Feiyu Li ◽  
Qiang He ◽  
Xuezhang Xiao ◽  
Man Chen ◽  
...  
Keyword(s):  
Formic Acid ◽  
Porous Carbon ◽  
Room Temperature ◽  
Carbon Nanosheets ◽  
Nitrogen Doped

scholarly journals Graphene/nitrogen-doped porous carbon sandwiches for the metal-free oxygen reduction reaction: conductivity versus active sites

2016 ◽  
Vol 4 (32) ◽  
pp. 12658-12666 ◽  
Author(s):  
M. Qiao ◽  
C. Tang ◽  
G. He ◽  
K. Qiu ◽  
R. Binions ◽  
...  
Keyword(s):  
Oxygen Reduction Reaction ◽  
Porous Carbon ◽  
Active Sites ◽  
Electronic Conductivity ◽  
Hydrothermal Carbonization ◽  
Reduction Reaction ◽  
Active Nitrogen ◽  
Free Oxygen ◽  
Nitrogen Doped ◽  
Metal Free

Graphene/nitrogen-doped porous carbon sandwiches were prepared by hydrothermal carbonization. Once the electronic conductivity in the carbon–carbon hybrids reaches a certain value, the performance is controlled by the active nitrogen sites.

scholarly journals Nitrogen-Doped Porous Carbon as High-Performance Cathode Material for Lithium-Sulfur Battery

2017 ◽  
Vol 2 (34) ◽  
pp. 11030-11034 ◽  
Author(s):  
Chang Liu ◽  
Zong-Jie Yin ◽  
Heming Deng ◽  
Cui Liu ◽  
Jinxing Zhao ◽  
...  
Keyword(s):  
Cathode Material ◽  
Porous Carbon ◽  
High Performance ◽  
Lithium Sulfur Battery ◽  
Nitrogen Doped ◽  
Sulfur Battery ◽  
Lithium Sulfur

Polydiphenylamine as a promising high-energy cathode material for dual-ion batteries

2020 ◽  
Author(s):  
Filipp Aleksandrovich Obrezkov ◽  
Alexander F. Shestakov ◽  
Sergey G. Vasil'ev ◽  
Keith Stevenson ◽  
Pavel Troshin
Keyword(s):  
Cathode Material ◽  
Cathode Materials ◽  
Metal Ion ◽  
Electronic Conductivity ◽  
Active Material ◽  
High Energy ◽  
The Poor

A serious drawback of organic cathode materials for metal-ion and dual-ion batteries is the poor electronic conductivity of cathode materials leading to relatively low loading of active material in the...

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