Results 31 to 40 of about 1,690 (184)

In Situ and Operando Techniques for Investigating Electron Transfer in Biological Systems

ChemElectroChem, 2021
When bioelectrochemistry meets other analytical techniques for in situ experiments, new possibilities for understanding the nature of charge‐transfer reactions are provided.
Prof. Dr. João C. P. deSouza, Lucyano J. A. Macedo, Dr. Ayaz Hassan, Graziela C. Sedenho, Iago A. Modenez, Prof. Dr. Frank N. Crespilho   +5 more
doaj   +1 more source

Ultrafast Vertical Organic Electrochemical Transistors With Ion‐Permeable Conductive Polymer Top Electrodes

Advanced Materials, EarlyView.
Vertical organic electrochemical transistors (vOECTs) are limited in speed by ion‐impermeable metal electrodes that slow ion injection. Using ion‐permeable PBFDO top electrodes allows direct vertical ion injection into BBL channels, achieving high current densities (>400 A cm−2), large on/off ratios (>106), and ultrafast switching in 28 µs. This sets a
Han‐Yan Wu, Yingxue An, Luigi Fabiano, Qifan Li, Qingqing Wang, Feng Zhang, Wenlong Jin, Miao Xiong, Junpeng Ji, Ugo Bruno, Grzegorz Greczynski, Grazia Maria Lucia Messina, Xianjie Liu, Chi‐Yuan Yang, Simone Fabiano   +14 more
wiley   +1 more source

A Flexible Platform of Electrochemically Functionalized Carbon Nanotubes for NADH Sensors

Sensors, 2019
A flexible electrode system entirely constituted by single-walled carbon nanotubes (SWCNTs) has been proposed as the sensor platform for β-nicotinamide adenine dinucleotide (NADH) detection.
Aranzazu Heras, Fabio Vulcano, Jesus Garoz-Ruiz, Nicola Porcelli, Fabio Terzi, Alvaro Colina, Renato Seeber, Chiara Zanardi   +7 more
doaj   +1 more source

When Poor Exciton Dissociation Limits Photocurrents in Organic Solar Cells: Why Low Offset Non‐Fullerene Acceptor Blends Can't Be Efficient

Advanced Materials, EarlyView.
The energetic offset between the donor and the acceptor components in organic photoactive layers is central to the tradeoff between photovoltage and photocurrent losses. This Perspective covers the most important issues surrounding this topic in non‐fullerene acceptor blends, from the difficulty of accurately determining state energies and driving ...
Dieter Neher, Manasi Pranav
wiley   +1 more source

Rapid Determination of the ‘Legal Highs’ 4-MMC and 4-MEC by Spectroelectrochemistry: Simultaneous Cyclic Voltammetry and In Situ Surface-Enhanced Raman Spectroscopy

Sensors, 2021
The synthetic cathinones mephedrone (4-MMC) and 4-methylethcathinone (4-MEC) are two designer drugs that represent the rise and fall effect of this drug category within the stimulants market and are still available in several countries around the world ...
Jerson González-Hernández, Colby Edward Ott, María Julia Arcos-Martínez, Álvaro Colina, Aránzazu Heras, Ana Lorena Alvarado-Gámez, Roberto Urcuyo, Luis E. Arroyo-Mora   +7 more
doaj   +1 more source

Operando Raman Spectroscopy Reveals Backpressure‐Controlled Dynamics in Diluted CO2 Electrolysis

Advanced Science, EarlyView.
High backpressure operation governs the CO2 reduction reaction (eCO2RR) kinetics and selectivity, as well as the CO2 and water dynamics, as revealed through operando Raman spectroelectrochemical measurement. Operating eCO2RR near diffusion‐limited conditions provides a platform for investigating the competition between eCO2RR and the hydrogen evolution
Muhammad Adib Abdillah Mahbub, Bashir Eid, Kinran Lau, Nini Zhang, Thomas Quast, Ann Cathrin Brix, Debanjan Das, Wolfgang Schuhmann   +7 more
wiley   +1 more source

Numerical Simulation of Electrochemical Processes at a Tubular Electrode. Application to Spectroscopy

Nonlinear Analysis, 2008
A model of spectroelectrochemical cell design based on a tubular working electrode with optical fibers connected to a spectrometer entering it from two ends is built.
O. V. Klymenko, J. Kulys
doaj   +1 more source

Ruthenium Assemblies for CO2 Reduction and H2 Generation: Time Resolved Infrared Spectroscopy, Spectroelectrochemistry and a Photocatalysis Study in Solution and on NiO

Frontiers in Chemistry, 2021
Two novel supramolecular complexes RuRe ([Ru(dceb)2(bpt)Re(CO)3Cl](PF6)) and RuPt ([Ru(dceb)2(bpt)PtI(H2O)](PF6)2) [dceb = diethyl(2,2′-bipyridine)-4,4′-dicarboxylate, bpt = 3,5-di(pyridine-2-yl)-1,2,4-triazolate] were synthesized as new catalysts for ...
Florian J. R. Cerpentier, Joshua Karlsson, Ralte Lalrempuia, Ralte Lalrempuia, Michael P. Brandon, Igor V. Sazanovich, Gregory M. Greetham, Elizabeth A. Gibson, Mary T. Pryce   +8 more
doaj   +1 more source

Covalently Integrated Selenoviologen–N‐Heterocyclic Carbene–Pt Nanoparticles for Visible‐Light‐Driven Hydrogen Evolution

Advanced Science, EarlyView.
A covalently integrated single‐component photocatalyst is constructed by anchoring selenoviologen to platinum nanoparticles via robust N‐heterocyclic carbene ligands. The resulting Pt─C covalent bonds function dually as protective structural scaffolds and direct channels for ultrafast intramolecular electron transfer This precise interfacial ...
Wenxi He, Guoping Li, Chenjing Liu, Yu Liu, Yawen Li, Wenxin Wei, Hairui Lei, Ni Yan, Gang He   +8 more
wiley   +1 more source

In-Situ Spectroelectrochemical Study of Conductive Polyaniline Forms for Sensor Applications

Proceedings, 2020
Our contribution focuses on a correlative study of polyaniline (PANI) electropolymerisation and UV/VIS spectroscopy. PANI was prepared via electro-oxidation using a potentiodynamic method on commercial gold screen-printed electrodes (Au-SPE). By using an
Anja Korent, Kristina Žagar Soderžnik, Kristina Žužek Rožman   +2 more
doaj   +1 more source