Results 41 to 50 of about 2,972 (191)

Achievement of Transition Metal Chalcogenides/Oxides in Hydrogen Production by Seawater Electrolysis

EcoEnergy, EarlyView.
Transition metal chalcogenides (TMCs)/oxides have shown great application potential in seawater splitting for hydrogen generation due to their adjustable electronic properties, abundant active sites, and excellent catalytic performance. ABSTRACT Under the impetus of global “dual carbon” goals, green hydrogen has become a key component of the future ...
Xiaohui Du, Xinyu Li, Jianna Li, Tao Sun
wiley   +1 more source

Laser‐Textured Field‐Engineered Interface for Robust Dry‐Processed Cathodes in Lithium‐Ion Batteries

ENERGY &ENVIRONMENTAL MATERIALS, EarlyView.
Laser‐patterned dry electrodes applied to current collectors could serve as a promising alternative to the limitations of conventional dry electrodes. Laser technology provides a fast and simple method to enhance the surface roughness of current collectors, improving the adhesion at the electrode–current collector interface.
Chaerin Jung, Jinyeong Choi, Minsu Kim, Chaerim Kim, Minbong Park, Byungjoon Lee, Jae Ho Kim, Jin Hong Lee, Minjoon Park   +8 more
wiley   +1 more source

Modeling and Analysis of Transient Overvoltage of Direct Drive Wind Turbine Under Symmetrical Faults

Zhongguo dianli
Large-scale wind power bases typically adopt UHVAC/UHVDC transmission systems for power export, with weak grid strength in the collection area. After short-circuit faults, transient overvoltage issues are prone to occur, making it urgent to study the ...
Hongbo LUO, Shiyao QIN, Zixuan GUO, Guanghui LI   +3 more
doaj   +1 more source

Simultaneous Electrochemical and Inductively Coupled Plasma Optical Emission Spectroscopy Measurements on AA 7075

Materials and Corrosion, EarlyView.
Schematic representation of the operando ICP‐OES setup during the electrochemical experiment (left). Resulting plot showing the dissolution of the individual alloy components of AA7075 as a function of applied potential in 10 mM NaCl (right). ABSTRACT This publication deals with the simultaneous acquisition of electrochemical and inductively coupled ...
Claudia Kutzer‐Schulze, Michael Schneider, Alexander Michaelis   +2 more
wiley   +1 more source

Research on overvoltage characteristics and arrester operation under typical failure of Ultra High Voltage DC project

Energy Reports, 2022
Accurately predicting the overvoltage level under typical faults and operating condition in the UHVDC (Ultra High Voltage DC) transmission project is not only beneficial to the insulation coordination design of the system, improving the security and ...
Yanli Li, Zhizheng Gan, Ran Yang, Ping Huang, Letian Wang, Jin Guo, Jian Cui   +6 more
doaj   +1 more source

The First Electrochemical Cycle: State‐of‐Charge Dependent Formation and Evolution of the Solid Electrolyte Interphase on Hard Carbon Anodes in Sodium‐Ion Batteries

Small Methods, EarlyView.
The formation and evolution of the solid electrolyte interphase on hard carbon electrodes is tracked at defined states of charge during the first galvanostatic cycle in sodium half‐cells. Combining SEM/EDS, XPS, ToF‐SIMS, SECM, and c‐AFM reveals how the SEI's morphology, chemistry, and interfacial reactivity develop during sodiation and partially ...
David Schäfer, Sven Daboss, Sarah Lang, Christine Kranz, Marcus Rohnke   +4 more
wiley   +1 more source

A New Method to Overvoltage Restrain of ElectricLocomotive Passing the Neutral Section

机车电传动, 2013
Overvoltage problem caused by electric locomotive passing the neutral section, always result in traction substation trip or the arc eroding the contact line.
LI Zong-lei, LIU Ming-guang, QU Zhi-jian, WANG Hai-jiao   +3 more
doaj  

A Preventive Static Security Control Strategy for Distribution Networks Based on Phase Shifting Transformer Loop‐Closing Devices

IEEJ Transactions on Electrical and Electronic Engineering, EarlyView.
As the share of renewable energy in the energy mix continues to increase, the penetration of distributed renewable generation in distribution networks is also rising steadily. Loop‐closing operation provides an effective means to enhance renewable energy accommodation across different grid partitions.
Ningyu Zhang, Yuqiao Jia, Xun Huang, Yuxuan Huang, Xin Zhao, Shan Gao, Jinyang Li   +6 more
wiley   +1 more source

Mechanism Analysis and Simulation Study of Closing Overvoltage Fault in EMU Circuit Breaker

Chengshi guidao jiaotong yanjiu
Objective The overvoltage caused by circuit breaker closing will aggravate the insulation aging of high voltage equipment when EMU (electric multiple units)passes neutral section.
ZHANG Mingrui, ZHANG Ningchuan, LIU Zhengwei   +2 more
doaj   +1 more source

Evaluation Methodology, Numerical Verification and Retrofilling Procedure for Power Transformers to Ensure K‐Class Flame Retardancy and Environmentally Friendly

High Voltage, EarlyView.
ABSTRACT With increasing demands for fire safety and environmental friendliness, retrofilling transformers with alternative insulating liquids has become a growing trend. However, retrofilling power transformers remains uncertain, as more residual mineral oil compromises K‐class flame retardancy, and its impact on environmental performance has yet to ...
Zhenfu Tang, Yihua Qian, Dan Zhou, Wei Hu, Feipeng Wang, Yang Xu   +5 more
wiley   +1 more source