Results 71 to 80 of about 3,602 (261)

Mixed‐Metal Promotion in a Manganese‐Molybdenum Oxynitride as Catalyst to Integrate C─C and C─N Coupling Reactions for the Direct Synthesis of Acetonitrile from Syngas and Ammonia

Advanced Materials, EarlyView.
Transition metal oxy/carbo‐nitrides show great promise as catalysts for sustainable processes. A Mn‐Mo mixed‐metal oxynitride attains remarkable performance for the direct synthesis of acetonitrile, an important commodity chemical, via sequential C─N and C─C coupling from syngas (C1) and ammonia (N1) feedstocks.
M. Elena Martínez‐Monje, Wilson Henao, Tania Rodenas, Patricia Concepción, Virginia Pérez Dieste, Alexander Missyul, Giovanni Agostini, Gonzalo Prieto   +7 more
wiley   +1 more source

Voltage-Gated Lipid Ion Channels.

PLoS ONE, 2013
Synthetic lipid membranes can display channel-like ion conduction events even in the absence of proteins. We show here that these events are voltage-gated with a quadratic voltage dependence as expected from electrostatic theory of capacitors.
Andreas Blicher, Thomas Heimburg
doaj   +1 more source

Kelvin Probe Force Microscopy in Bionanotechnology: Current Advances and Future Perspectives

Advanced Materials, EarlyView.
Kelvin probe force microscopy (KPFM) enables the nanoscale mapping of electrostatic surface potentials. While widely applied in materials science, its use in biological systems remains emerging. This review presents recent advances in KPFM applied to biological samples and provides a critical perspective on current limitations and future directions for
Ehsan Rahimi, Mario Palacios‐Corella, Arjan Mol, Salvador Pané, Josep Puigmartí‐Luis   +4 more
wiley   +1 more source

Aluminum-based metal–organic framework and its derived nanostructures in hybrid-supercapacitor: a prospective review

Discover Electrochemistry
Supercapacitors, particularly hybrid supercapacitors, have been a challenging area of research in recent years. The advantage of hybrid supercapacitors (HSCs) lies in their ability to metal–organic framework bridge the gap between the required energy ...
Rakesh K. Sahoo, Sweta R. Dash, Sweta L. Sahu, Joydip Sengupta   +3 more
doaj   +1 more source

A novel artificial neural network based selection harmonic reduction technique for single source fed high gain switched capacitor coupled multilevel inverter for renewable energy applications

Heliyon
Multilevel inverters (MLIs) are commonly used in renewable energy systems for their high-quality output, low total harmonic distortion (THD), and reduced component count.
Anand Kumar Thangapandi, Amit Kumar, Durgalakshmi Karthigeyan, Suganthi Ramasamy, Venkatesh Arumugam, Gianluca Gatto   +5 more
doaj   +1 more source

Improved Ferroelectric Performance of Mg-Doped LiNbO3 Films by an Ideal Atomic Layer Deposited Al2O3 Tunnel Switch Layer

Nanoscale Research Letters, 2019
Bilayer structures composed of 5% Mg-doped LiNbO3 single-crystal films and ultrathin Al2O3 layers with thickness ranging from 2 to 6 nm have been fabricated by using ion slicing technique combined with atomic layer deposition method. The transient domain
Yan Zhang, Qing Hua Ren, Xiao Jie Chai, Jun Jiang, Jian Guo Yang, An Quan Jiang   +5 more
doaj   +1 more source

Hybrid PWM Technique and Capacitor Voltage Balancing Control for Four-Level Asymmetrical Flying Capacitor Inverter

IEEE Access
This paper proposes a novel hybrid PWM technique for the four-level (4L) asymmetrical hybrid flying capacitor (AHFC) inverter, a variant of the HFC topology. This technique combines level-shifted and phase-shifted PWM methods to achieve natural voltage balancing for flying capacitors under ideal and steady-state operating conditions.
Dinh-Du To, Dong-Choon Lee
openaire   +2 more sources

Counterintuitive Fluorescence Blue Shift in Symmetry Breaking Dicationic Bis(indolium) with Two‐Photon Absorption Properties for NIR Living Cell Imaging

Advanced Materials, EarlyView.
Highly water‐soluble dicationic bis(indolium) dyes have been prepared, showing excellent two‐photon absorption and light emission. Their fluorescence behavior discloses an unusual increasing blue shift with increasing solvent polarity, which, in parallel, is beneficial for enhanced detection in biological media.
Carlos Benitez‐Martin, Jose M. Marin‐Beloqui, Juan T. López Navarrete, Juan Casado, Francisco Najera, Ezequiel Perez‐Inestrosa   +5 more
wiley   +1 more source

Microscopic Insights into Magnetic Warping and Time‐Reversal Symmetry Breaking in Topological Surface States of Rare‐Earth‐Doped Bi2Te3

Advanced Materials, EarlyView.
Magnetic doping of the topological insulator Bi2Te3 with erbium adatoms induces out‐of‐plane magnetism and breaks time‐reversal symmetry, opening a Dirac gap and driving a Fermi surface transition from hexagonal to star‐of‐David geometry. Microscopy, spectroscopy, and magnetic dichroism reveal atomically controlled magnetic interactions that tailor the
Beatriz Muñiz Cano, Fabián Calleja, Ji Dai, Massimo Tallarida, Vera Marinova, Alessandro Barla, Marc G. Cuxart, Pierluigi Gargiani, Gonzalo N. Molina, José Angel Silva‐Guillén, Adriana I. Figueroa, Kevin García‐Díez, Sergio O. Valenzuela, Aitor Mugarza, Amadeo L. Vázquez de Parga, Rodolfo Miranda, Francisco Guinea, Manuela Garnica, Miguel A. Valbuena   +18 more
wiley   +1 more source

A Cost‐Effective Production Route of Li4Ti5O12 Resisting Unsettled Market and Subsequent Application in the Li‐Ion Capacitor

Small Structures
Outstanding materials and novel device structures are key factors in satisfying the increasing demand for energy storage. Li‐ion capacitors, as one typical model of asymmetric supercapacitors, benefit from the battery's ultrahigh specific energy and ...
Jing Zhou, Yongzhu Fu, Tengfei Zhang
doaj   +1 more source