Results 21 to 30 of about 110,018 (267)

Pore engineering: Structure-capacitance correlations for biomass-derived porous carbon materials

Materials & Design, 2023
As the world’s demand for green energy storage systems continues to increase, electrochemical double-layer supercapacitors based on porous carbon electrodes are receiving more attention than ever.
Bing Yan, Jiaojiao Zheng, Li Feng, Qian Zhang, Chunmei Zhang, Yichun Ding, Jingquan Han, Shaohua Jiang, Shuijian He   +8 more
doaj   +1 more source

Porous Activated Carbon Prepared from Highland Barley Straw by Phosphoric Acid Activation as a Conductive Agent for Improving Electrochemical Performance of LiFePO4 Cathodes

International Journal of Electrochemical Science, 2021
Herein, porous activated carbon was synthesized from highland barley straw by phosphoric acid activation and used as a conductive agent for LiFePO4 cathodes. The morphology and microstructure are characterized by scanning electron microscopy and nitrogen
Wenliang Sun, Rusi Hao
doaj   +1 more source

Defect-rich Zn2SnO4−x/SnO2−x heterostructure for high sulfur utilization and uniform Li+ transport toward stable Li-S full batteries

Nano Research
Lithium-sulfur (Li-S) batteries depend on eco-friendly sulfur cathodes coupled with lithium metal anode that can attain ultra-high energy density. However, simultaneously inhibiting the shuttling effect, accelerating the redox kinetics and regulating Li+
Junting Li, Xinying Peng, Zhitong Liu, Yuan Tian, Cheng Wang   +4 more
doaj   +1 more source

Improvement of Hydrogen Desorption Characteristics of MgH₂ With Core-shell Ni@C Composites

Molecules, 2018
Magnesium hydride (MgH2) has become popular to study in hydrogen storage materials research due to its high theoretical capacity and low cost. However, the high hydrogen desorption temperature and enthalpy as well as the depressed kinetics, have severely
Cuihua An, Qibo Deng
doaj   +1 more source

Change of Optical Properties of Carbon-Doped Silicon Nanostructures under the Influence of a Pulsed Electron Beam

Journal of Nanotechnology, 2022
In the work, porous silicon with observed photoluminescence was made from a p-type silicon substrate doped with boron and crystallographic orientation (100) using the method of electrochemical etching in a solution containing H2(SiF6) (silicon ...
M. B. Darmenkulova, M. B. Aitzhanov, Sh. A. Zhumatova, M. K. Ibraimov, Ye. Sagidolda   +4 more
doaj   +1 more source

Synthesis of porous carbon materials and their cycling properties in lithium-ion batteries

上海师范大学学报. 自然科学版, 2023
Based on the development and research status of porous organic polymers and their derived carbon materials in anode materials of lithium-ion batteries, we explored a synthesis method of porous carbon nanospheres with controllable pore size.
TIAN Hanxiao, QI Chaoran, HAN Yingying, YANG Lei, ZHU Xin, XU Jingjing, XIAO Shengxiong   +6 more
doaj   +1 more source

GASIFICATION OF POROUS CARBON BY CARBON DIOXIDE

JOURNAL OF CHEMICAL ENGINEERING OF JAPAN, 1969
A method of analysis is presented for the reaction between a porous solid and a gas when the diffusion resistance is significant. The kinetic expression used is linear with respect to the concentration of reacting gas. As a typical example, experiments of gasification of graphite sph-res with carbon dioxide were carried out and the results were ...
YOSHIDA, KUNIO, KUNII, DAIZO
openaire   +2 more sources

Enhanced functional properties of porous carbon materials as high-performance electrode materials for supercapacitors

Green Energy and Resources, 2023
Porous carbons with unique electronic, chemical, and surface properties have become a research hotspot in energy storage applications. But the electrodes of porous carbons in supercapacitors cannot meet the ever-inrceasing demands for high energy density
Kai Yang, Qingwen Fan, Chaoyun Song, Yuchun Zhang, Yongmei Sun, Wen Jiang, Peng Fu   +6 more
doaj   +1 more source

Synthesis and Application of Porous Carbon Nanomaterials from Pomelo Peels: A Review

Molecules, 2023
Advanced carbon nanomaterials have been widely applied in various fields such as microelectronics, energy storage, catalysis, adsorption, biomedical engineering, and material strengthening. With the increasing demand for porous carbon nanomaterials, many
Zixuan Liu, Qizheng Yang, Lei Cao, Shuo Li, Xiangchen Zeng, Wenbo Zhou, Cheng Zhang   +6 more
doaj   +1 more source

Monitoring the length change of Ni@C composite electrodes during charging/discharging processes

Electrochemistry Communications, 2019
The iterative volume change of electrode materials during electrochemical charging/discharging processes could generally result in the performance degradation of electrochemical capacitors. This work investigates the mechanical stability of the electrode
Cuihua An, Chenhao Dong, Li-Hua Shao, Qibo Deng   +3 more
doaj   +1 more source