Results 61 to 70 of about 83,419 (283)

Enhanced Nitric Oxide Electroreduction to Ammonia via Modulating Spin‐Polarization of Fe Single‐Atom Catalysts

Advanced Functional Materials, EarlyView.
A strategic spin‐polarization suppression in Fe single‐atom catalysts is proposed to enhance electrocatalytic reduction of NO to NH3. Employing a top‐down electrospinning strategy, self‐supported FeSAC with Fe‐N3S1 coordination structure and spin‐state transition is engineered from high‐spin to low‐spin.
Jialing Song, Ziqi Wei, Lupeng Han, Zhenlin Wang, Chenghao Fan, Donglin Han, Chunwei Dong, Haiyan Duan, Xiyang Wang, Sam Fong Yau Li, Eslam Hamed, Ming Xie, Emiliano Cortés, Dengsong Zhang   +13 more
wiley   +1 more source

EPR‐spectroscopy of reduced oxyferrous‐P450_cam [PDF]

FEBS Letters, 1991
X‐irradiation of the ternary complex of P450:substrate:O2 at 77 K produces a reduced intermediate by electron addition to the Fe:O2 complex which can be studied by EPR‐spectroscopy. The EPR spectrum of the new species exhibits rhombic symmetry with g‐factors of 2.27, 2.17 and 1.95, respectively. Increasing the temperature of the sample to 190 K results
Davydov, R., Kappl, R., Hüttermann, J., Peterson, J.A.   +3 more
openaire   +2 more sources

Broadband, Flexible, Skin‐Compatible Carbon Dots/Graphene Photodetectors for Wearable Applications

Advanced Functional Materials, EarlyView.
Broadband, flexible photodetectors integrating nitrogen‐rich carbon dots with single‐layer graphene on plastic substrates are demonstrated. A biocompatible chitosan–glycerol electrolyte enables efficient low‐voltage gating and on‐skin operation. The devices exhibit ultraviolet‐to‐near‐infrared response, mechanical robustness under bending, and verified
Nouha Loudhaief, Petr Rozhin, Ilaria Bertuol, Ali Raza, Leonardo Viti, Subhankar Roy, Enrico Cavarzerani, Luca Sbuelz, Matteo Brilli, Andrea Serinolli, Jacopo Nicoletti, Riccardo Piccoli, Sebastián Castilla, Simone Dal Zilio, Enrique Rodríguez‐Castellón, Miriam Serena Vitiello, Maurizio Selva, Flavio Rizzolio, Alvise Perosa, Giovanni Antonio Salvatore, Domenico De Fazio   +20 more
wiley   +1 more source

Unlocking the potential of photoexcited molecular electron spins for room temperature quantum information processing

Materials for Quantum Technology
Future information processing technologies like quantum memory devices have the potential to store and transfer quantum states to enable quantum computing and networking. A central consideration in practical applications for such devices is the nature of
Kuan-Cheng Chen, Alberto Collauto, Ciarán J Rogers, Shang Yu, Mark Oxborrow, Max Attwood   +5 more
doaj   +1 more source

Radicals in carbonaceous residue deposited on mordenite from methanol [PDF]

, 2016
It is shown that control of the degree of coking can lead to the observation of hyperfine structures in the carbonaceous residues deposited from methanol over mordenite (H-MOR) at temperatures relevant to the conversion of methanol to hydrocarbons.
Ditzel, Evert J., Hargreaves, Justin S. J., Spencer, Nicholas A., Sproules, Stephen   +3 more
core   +1 more source

Self‐Refreshing Bi‐Based Active Sites for Efficient and Durable Electrochemical CO2 Reduction

Advanced Functional Materials, EarlyView.
A self‐refreshing Bi‐based catalyst is developed through the fabrication of a novel basic bismuth nitrate pre‐catalyst, which exhibits differential active sites of Bi2O2CO3 at low potentials and metallic Bi phases at high potentials, self‐repairing capability, and thus wide‐potential‐window efficiency and ultralong durability toward electrochemical CO2
Yuxuan Xiao, Xiaoling Lai, Jinxian Feng, Ziwen Feng, Wendi Zhang, Lun Li, Weng Fai IP, Hui Pan   +7 more
wiley   +1 more source

EPR Spectra from “EPR-Silent” Species:  High-Field EPR Spectroscopy of Aqueous Chromium(II). [PDF]

Inorganic Chemistry, 1998
High-field (up to 14.5 T) multifrequency (∼90−440 GHz) electron paramagnetic resonance (EPR) spectroscopy has been used to probe the non-Kramers, S = 2, Cr2+ ion in frozen aqueous solution, in the presence and absence of the glassing agent, glycerol. Solutions with both chloride and sulfate counterions were investigated.
Joshua Telser, Luca A. Pardi, J. Krzystek, Louis-Claude Brunel   +3 more
openaire   +1 more source

Enhancing Synaptic Plasticity and Multistate Retention of Organic Neuromorphic Devices Using Anion‐Excessive Gel Electrolyte

Advanced Functional Materials, EarlyView.
Anion‐excessive gel‐based organic synaptic transistors (AEG‐OSTs) that can maintain electrical neutrality are developed to enhance synaptic plasticity and multistate retention. Key improvement is attributed to the maintenance of electrical neutrality in the electrolyte even after electrochemical doping, which reduces the Coulombic force acting on ...
Yousang Won, Jeongwoo Lee, Hyunwook Kim, Joon Hak Oh   +3 more
wiley   +1 more source

Structural heterogeneity of α-synuclein fibrils amplified from patient brain extracts

Nature Communications, 2019
Parkinson’s disease (PD) and Multiple System Atrophy (MSA) are characterized by the pathological accumulation of α-synuclein. Here the authors employ fluorescent probes, electron microscopy and NMR spectroscopy to study the properties of α-synuclein ...
Timo Strohäker, Byung Chul Jung, Shu-Hao Liou, Claudio O. Fernandez, Dietmar Riedel, Stefan Becker, Glenda M. Halliday, Marina Bennati, Woojin S. Kim, Seung-Jae Lee, Markus Zweckstetter   +10 more
doaj   +1 more source

Hyperfine Clock Transitions of Bismuth Donors in Silicon Detected by Spin Dependent Recombination [PDF]

, 2014
Bismuth donors ion-implanted in $^{28}$Si and $^\text{nat}$Si are studied using magnetic resonance spectroscopy based on spin dependent recombination. The hyperfine clock transition, at which the linewidth is significantly narrowed, is observed for the ...
Berger, Simon, Culan, Christophe, Elliman, Robert G., Itoh, Kohei M., Mortemousque, Pierre-André, Sekiguchi, Takeharu   +5 more
core   +2 more sources