Results 51 to 60 of about 3,602 (261)

Designed Lewis Acid–Base Passivation for High Performance Perovskite Solar Cells

Advanced Functional Materials, EarlyView.
ABSTRACT Silicon's high cost and long energy payback time remain major barriers to the global expansion of solar power. In contrast, metal–halide perovskites offer abundant, solution‐processable absorbers, and have achieved efficiencies of 25%–30%, positioning them as strong competitors to silicon.
Afna Manaf, Hiba Shahulhameed, Bhabani Sankar Swain, Shengzhong (Frank) Liu, Adel Najar   +4 more
wiley   +1 more source

Single-Phase Shunt Active Power Filter Based on a 5-Level Converter Topology

Energies, 2018
This paper presents a single-phase Shunt Active Power Filter (SAPF) with a multilevel converter based on an asymmetric full-bridge topology capable of producing five distinct voltage levels.
José Gabriel Oliveira Pinto, Rui Macedo, Vitor Monteiro, Luis Barros, Tiago Sousa, João L. Afonso   +5 more
doaj   +1 more source

A Diamond Shaped Multilevel Inverter With Dual Mode of Operation

IEEE Access, 2021
This study presents a novel multilevel inverter structure that can operate in both switched capacitor and asymmetric DC source modes. In the first mode, it can produce seven-level output voltage employing two switched capacitors and one single DC supply.
Sheikh Tanzim Meraj, Mohammad Kamrul Hasan, Jahedul Islam, Yousef A. Baker El-Ebiary, Jamel Nebhen, Md. Moinul Hossain, Md. Khorshed Alam, Nguyen Vo   +7 more
doaj   +1 more source

Dynamic Interfacial Chemistry of Choline Chloride as Electrolyte Additive for Stable Zn‐Iodine Batteries

Advanced Functional Materials, EarlyView.
Choline chloride (ChCl) additive enables dynamic interface engineering in Zn‐I2 batteries by forming hydrophobic polyiodide complexes and a Zn‐stabilizing Ch+‐rich layer under electric field modulation. This dual‐function strategy suppresses iodine hydrolysis and dendrite formation, while optimizing Zn2+ solvation and transport for high‐efficiency ...
Xiaoyu Bi, Yuchuan Ren, Ao Yu, Linlin Yang, Ren He, Yapeng Cheng, Xingqi Chang, Xuan Lu, Yanting Xie, Qian Xue, Hu Yuan, Canhuang Li, Runzhou Huang, Jordi Jacas Biendicho, Chaoqi Zhang, Jian Shang, Andreu Cabot   +16 more
wiley   +1 more source

Asymmetric Voltage Vector-Based Initial Rotor Position Detection in Four-Switch Inverter Fed BLDC Motors

CES Transactions on Electrical Machines and Systems
In position-sensorless brushless direct current (DC) motors (BLDCMs) fed by a four-switch three-phase (FSTP) inverter, only two phases are fully controlled, while the remaining phase is tied to the midpoint of the split DC-link capacitors.
Xinmin Li, Kun Liu, Lu Zhou, Tingna Shi, Wei Chen   +4 more
doaj   +1 more source

Three-Phase Interleaved LLC Asymmetric Resonant Converter With Capacitive Current Balancing and Reduced Switch Voltage Stress

IEEE Access, 2020
Interleaved converters are a typical solution to enhance a current capacity and to reduce current ripples of an input or output port. Conventional interleaved LLC resonant converters need additional switches and passive components with a feedback control
Yoshiya Tada, Masatoshi Uno, Yusuke Sato
doaj   +1 more source

A Dual‐Functional Electrolyte Additive for Highly Reversible Zinc‐Ion Batteries

Advanced Functional Materials, EarlyView.
This study introduces tetrabutylammonium bromide (TBAB) as a dual‐function additive for aqueous zinc‐ion batteries. TBAB disrupts the hydrogen‐bond network of water while TBA+ adsorbs on Zn to improve interfacial wettability and regulate Zn2+ flux, resulting in suppressed dendrite growth and parasitic reactions. This synergy extended the lifespan of Zn|
Shirui Zhang, Shixun Wang, Jianen Zhang, Jun Liu, Jinfeng Xie, Wentao Tang, Li Guan, He Huang, Qi Xue, Chunyi Zhi   +9 more
wiley   +1 more source

Trace Sulfur‐Doping Boosts NiCo Heterostructured Catalyst for Selective Glycerol‐to‐Formic Acid Electroreforming

Advanced Functional Materials, EarlyView.
A sulfur‐doped Ni–Co heterostructured catalyst is rationally designed to regulate interfacial electronic and adsorption properties for selective glycerol electrooxidation. The synergistic Ni–Co active sites promote hydroxide activation and glycerol adsorption, enabling efficient formic acid production and durable hydrogen generation under continuous ...
Lingqin Shen, Jianchuan Jin, Auttaphon Chachvalvutikul, Ouardia Akdim, Graham J. Hutchings   +4 more
wiley   +1 more source

Force On A High Voltage Capacitor With Asymmetrical Electrodes

, 2010
{"references": ["F. X. Canning, C. Melcher, E. Winet, Asymmetrical Capacitors for\nPropulsion, NASA Scientific report, West Virginia, 2004", "M. Ko\u253c\u00edek, J. Primas, M. Mal\u251c\u00a1k, A Richter, \"Approximation of strong\nelectric field,\" Proceedings of conference Advanced Methods in the\nTheory of Electrical Engineering, Pilsen: University
Jiří Primas, Malík, Michal, Jašíková, Darina, Kopecký, Václav   +3 more
openaire   +2 more sources

Digitizing the Filtration Interface: A Smart, Modular Janus Wood Platform for Self‐Reporting Oil/Water Remediation

Advanced Functional Materials, EarlyView.
This work developed a smart Janus wood membrane integrating asymmetric wettability with built‐in electrical sensing for oil‐water separation. The membrane achieved > 99.5% separation efficiency and high flux by leveraging wood's natural anisotropic pore structure.
Kaiwen Chen, Cheng Hao, Wenjuan Zhao, Haonan Zhang, Yujing Tan, Fengze Sun, Xuewen Han, Hui Peng, Tianyi Zhan, Jianxiong Lyu, Ning Yan   +10 more
wiley   +1 more source