Results 31 to 40 of about 3,602 (261)

A High Step-Up Interleaved Current-Fed Resonant Converter for High-Voltage Applications

IEEE Access, 2022
A current-fed LLC resonant converter is proposed for high-voltage and high-power applications. Here, a two-phase interleaved structure is used in the input stage under the continuous conduction mode (CCM) to effectively reduce the input current and ...
Danesh Amani, Reza Beiranvand, Mohammadreza Zolghadri, Frede Blaabjerg   +3 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

On the propulsive force developed by asymmetric capacitors in a vacuum

Physics Procedia, 2011
AbstractThe present work provides a detailed analysis of already published reports on the observation of an anomalous force in a vacuum associated with vacuum sparks in asymmetric capacitors charged with “constant” high voltages. Known experimental details of these experiments are put forward and propulsion performance is compared with the only known ...
Martins, A.A., Pinheiro, M.J.
openaire   +1 more source

Planar Solid‐State Nanopores Toward Scalable Nanofluidic Integration Based on CMOS Technology

Advanced Engineering Materials, EarlyView.
We present a scalable silicon‐based fabrication strategy for planar solid‐state nanopores to enable their integration with complex nanofluidic systems. Prototype devices demonstrate normal voltage‐current characteristics, good noise performance, and appreciable streaming currents. Our CMOS‐compatible fabrication process offers precise geometric control
Ngan Hoang Pham, Chenyu Wen, Mohammad Hadi Khaksaran, Won‐Yong Lee, Javier Cruz, Klas Hjort, Dongping Wu, Shi‐Li Zhang   +7 more
wiley   +1 more source

A review of neutral pH polymer electrolytes for electrochemical capacitors: Transitioning from liquid to solid devices

Materials Reports: Energy, 2021
The development of neutral pH polymer electrolytes has enabled high-performance solid-state, thin, and flexible electrochemical capacitors (ECs) to provide power for future consumer electronics and Internet-of-Thing devices.
Alvin Virya, Keryn Lian
doaj   +1 more source

Incorporation of Selenium into Sol–Gel‐Derived Bioactive Glass: Influence on Glass Structure, Bioactivity, and its Selective Cytotoxicity

Advanced Engineering Materials, EarlyView.
Selenium was incorporated into a sol–gel‐derived bioactive glass to enable sustained therapeutic ion release. The selenium‐containing glass preserved bioactivity while selectively inducing cytotoxicity in osteosarcoma cells and maintaining osteoblastic viability.
Breno Rocha Barrioni, Thalita Marcolan Valverde, Talita Martins, Guilherme Mattos Jardim Costa, Alfredo Miranda de Goes, Marcello Rosa Dumont, Eduardo Henrique Martins Nunes, Marivalda de Magalhães Pereira   +7 more
wiley   +1 more source

Advances in Selenium‐Based Materials for Supercapacitors: Chemistry, Interaction Mechanisms, and Practical Applications

Small Structures
High‐performance supercapacitors require electrode materials that can simultaneously deliver elevated energy storage capacity, rapid power output, and long‐term cycling stability. Compared to sulfur analogs, selenium (Se)‐based materials have shown great
Murugan Madhubalan, Selvan Sathish, Minda Mahivardhan, Prabhakaran Thandapani, Kannan Karthika Abimanyu, Ramesh Kumar, Jong‐Hyun Seo, Bon‐Woo Gu, Subbaiah Muthu Prabhu, Byong‐Hun Jeon   +9 more
doaj   +1 more source

From Food to Power: Hydrogel Thermoelectrics for Ingestible Electronics

Advanced Functional Materials, EarlyView.
We introduce a fully edible thermoelectric–electrochromic platform that harvests heat from food and converts it into a visible color change. N‐type and p‐type hydrogel thermoelectric generators connected in series power anthocyanin‐based electrochromic displays, demonstrating the feasibility of safe, biodegradable, ingestible systems for on‐food ...
Antonia Georgopoulou, Bokeon Kwak, Dario Floreano, Esther Amstad   +3 more
wiley   +1 more source

NiCo-MOF Nanospheres Created by the Ultra-Fast Microwave Method for Use in High-Performance Supercapacitors

Molecules, 2023
Metal-organic frameworks—through the use of creative synthetic designs—could produce MOF materials with excellent porosity, stability, particle microstructures, and conductivity, and their inherent characteristics—including their porosity and ...
Xing Yang, Xin Zhang, Ning Yang, Lei Yang, Wanglong Wang, Xing Fang, Qing He   +6 more
doaj   +1 more source

On the nature of the propulsive force of asymmetric capacitors in the atmosphere

Physics Procedia, 2011
AbstractThe present work intends to identify the nature of the propulsive force that occurs during a positive corona discharge in nitrogen gas around an asymmetric capacitor geometry. Using the known theory of electrohydrodynamics (EHD) and electrostatics it is possible to compute all hydrodynamic and electrostatic forces that act on the considered ...
Martins, A.A., Pinheiro, M.J.
openaire   +1 more source