Results 81 to 90 of about 206,658 (305)

Engineering Hydrogen‐Down Water Configurations for Ampere‐Level Electrochemical CO2 Reduction to Formate

open access: yesAdvanced Functional Materials, EarlyView.
Electrochemical CO2 reduction (ECR) to formate is a promising route for sustainable chemical production. Herein, we report the synthesis catalysed byBi‐HfO2@C. The AIMD simulations, DFT calculations, and in situ SEIRAS measurements show that the modification of HfO2 on the Bi surface steers the interfacial water to adopt a favorable hydrogen‐down (OH2↓)
Xiao‐Dong Guo   +7 more
wiley   +1 more source

Recent Advancements in Technologies, Applications, and Regulations of Near-Field Wireless Power Transfer

open access: yesIEEE Access
Near-field wireless power transfer enables energy transfer via electromagnetic coupling between a power source and a receiver over short distances. This technology improves user convenience and autonomy in both low-power and high-power applications, such
Arthur Cloet   +3 more
doaj   +1 more source

A Simultaneous Wireless Information and Power Transfer System With Independent Channel for Information Transfer

open access: yesIEEE Access, 2020
Reliable communication between the primary and the secondary side is a challenge for simultaneous wireless information and power transfer (SWIPT) system.
Jie Wu   +6 more
doaj   +1 more source

Insights into dynamic tuning of magnetic-resonant wireless power transfer receivers based on switch-mode gyrators [PDF]

open access: yes, 2018
Magnetic-resonant wireless power transfer (WPT) has become a reliable contactless source of power for a wide range of applications. WPT spans different power levels ranging from low-power implantable devices up to high-power electric vehicles (EV ...
Alarcón Cot, Eduardo José   +1 more
core   +3 more sources

Inductive power transfer for Railway applications

open access: yes2015 First Workshop on Smart Grid and Renewable Energy (SGRE), 2015
Inductive power transfer (IPT) is used to transfer the power over relatively large air gap using the resonant phenomena. The use of IPT in the Railway transportations will enhance the system performance in terms of reducing the on board energy requirements, minimizing the visual pollution, and reducing the infrastructure.
Almuhannadi, D.   +3 more
openaire   +2 more sources

X‐Functionality–Driven Photocatalytic Hydrogen Evolution in 2D 4‐X‐PEA2SnI4 Perovskites

open access: yesAdvanced Functional Materials, EarlyView.
We report a water‐based synthesis of 2D 4‐X‐PEA2SnI4 perovskite microcrystals with prominent photocatalytic (PC) activity for H2 production. The synergy between organic functionalization and HI‐derived iodide scavenges holes suppress octahedral distortion, and favor electron accumulation, enabling a PC H2 evolution ∼20 µmol·g−1 and long‐term stability ...
Taeyeon Kim   +21 more
wiley   +1 more source

Load-Independent Voltage Control for Multiple-Receiver Inductive Power Transfer Systems

open access: yesIEEE Access, 2019
This paper proposes a multiple-receiver inductive power transfer platform which is capable of controlling the load voltages to satisfy individually rated values and stabilizing the load voltages against the load variations.
Quoc-Trinh Vo   +2 more
doaj   +1 more source

A Low Complexity Design Framework for NFC-RFID Inductive Coupled Antennas

open access: yesIEEE Access, 2020
Inductive Wireless Power and Data Transfer (WPDT) technology has become a vital enabler to the globalisation of Internet of Things. Driven by an increasing demand for data within applications and by the need to reduce the devices footprint by ...
Benoit Couraud   +4 more
doaj   +1 more source

On fully superconducting rectifiers and fluxpumps. A review. Part 2: Commutation modes, characteristics and switches [PDF]

open access: yes, 1981
This paper forms the second part of the review. Full and half wave superconducting transformer rectifiers are analysed. Modes of operation and loss mechanisms are detailed and a comparison between the behaviour of dynamos and rectifiers is presented ...
Kate, H.H.J. ten   +1 more
core   +2 more sources

Carbon Shell‐Encapsulated PtFe Catalysts in High Temperature Polymer Electrolyte Membrane Fuel Cells: Balancing Molecular Sieving and Diffusion for Enhanced Reactant Access

open access: yesAdvanced Functional Materials, EarlyView.
Scanning electrochemical microscopy reveals reactant diffusion through porous carbon shells to PtFe cores, while the carbon‐encapsulated PtFe enables high‐performance HT‐PEMFC operation by sieving phosphate ions that induce catalyst poisoning. ABSTRACT High‐temperature polymer electrolyte membrane fuel cells (HT‐PEMFCs) operating at 160°C on phosphoric
Myeong‐Geun Kim   +9 more
wiley   +1 more source

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