Results 51 to 60 of about 4,600 (221)

Tuning Amorphous‐Crystalline Catalytic Interfaces by Mechanochemistry: Cu‐Based Metallic Glasses Coupled with Ceria for CO Oxidation

Advanced Materials, EarlyView.
Ball‐milling Cu‐based metallic glasses with ceria creates a unique nanostructure where metallic glass particles are wrapped by CeO2 nanoparticles. The intimate integration triggers copper state reorganization during reaction and aging, boosting CO oxidation and COPrOx activity.
Maahin Mirzay‐Shahim, Mehran Nabahat, Laia Pascua‐Solé, Isabel Serrano, Ilaria Lucentini, Xènia Garcia, Marina Armengol‐Profitós, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Núria J. Divins, Ignacio J. Villar‐Garcia, Virginia Pérez‐Dieste, Carlos Escudero, Carlo Marini, Jordi Llorca, Eloi Pineda, Pere Bruna, Lluís Soler   +17 more
wiley   +1 more source

Study on the Reaction Mechanism of RuOx and Its Enhanced Hydrogen Evolution Reaction Activity

Advanced Science, EarlyView.
In situ Raman spectroscopy and DFT calculations reveal that, prior to the onset of HER, the surface of RuOx undergoes reversible reduction and structural reconstruction. The resulting Ru(II)O/Ru(IV)O2 configuration is identified as the true catalytically active species.
Liquan Zhang, Haobo Dong, Jianrui Feng, Longxiang Liu, Fei Guo, Liqun Kang, Guoliang Chai, Mohamed A. Ghanem, Xinde Chen, Ivan P. Parkin   +9 more
wiley   +1 more source

X-ray Spectroscopy Study of Defect Contribution to Lithium Adsorption on Porous Carbon

Nanomaterials, 2023
Lithium adsorption on high-surface-area porous carbon (PC) nanomaterials provides superior electrochemical energy storage performance dominated by capacitive behavior.
Yuliya V. Fedoseeva, Elena V. Shlyakhova, Anna A. Makarova, Alexander V. Okotrub, Lyubov G. Bulusheva   +4 more
doaj   +1 more source

Chiral‐Induced Spin Selectivity Effect in a 1 nm Thin 1,1′‐Binaphthyl‐2,2′‐diyl Hydrogenphosphate Self‐Assembled Monolayer on Nickel Oxide

Advanced Science, EarlyView.
A self‐assembled monolayer (≈0.9 nm) of an axially chiral binaphthol phosphoric acid derivative on a ferromagnetic Ni/NiOx substrate shows chiral‐induced spin selectivity (CISS) magnetoresistance of 50%–80%. This thermally and chemically robust functional stack shows the way towards practical spintronic devices based on the CISS effect.
Abin Nas Nalakath, Christian Pfeiffer, Anu Gupta, Franziska Schölzel, Michael Zharnikov, Georgeta Salvan, Ron Naaman, Marc Tornow, Peer Kirsch   +8 more
wiley   +1 more source

CHARACTERIZATION OF ORGANIC GLASSES BY NEXAFS SPECTROSCOPY [PDF]

, 2022
The orientational order and morphology of organic thin films play an important role in defining their physical properties. The development of general techniques to define and control molecular orientation at the nanoscale may lead to improved performance
Zuhaib, Amara
core  

Internal molecular conformation of organic glasses: A NEXAFS study

The Journal of Chemical Physics, 2021
The origin of the exceptional stability of molecular glasses grown by physical vapor deposition (PVD) is not well understood. Differences in glass density have been correlated with thermodynamic stability for thin films of N,N′-Bis(3-methylphenyl)-N,N′-diphenylbenzidine (TPD) grown by PVD at specific substrate temperatures below the glass transition ...
Amara Zuhaib, Stephen G. Urquhart
openaire   +3 more sources

Non‐Destructive, Reference‐Free Quantitative Analysis of TaOx Memristive Devices Using Soft X‐Ray Radiation

Advanced Electronic Materials, EarlyView.
A non‐destructive, quantitative approach has been developed to explore the nanoscale dynamics of TaOx‐based memristive devices. The utilization of nano‐X‐ray fluorescence analysis enables the direct probing of spatially resolved elemental distributions, including those present in buried layers, that are critical for the resistive switching.
André Wählisch, Xin Zheng, Andreas Haidl, Jan Weser, Christian Stadelhoff, Marc Dummin, Leona J. Bauer, Rainer Unterumsberger, Ilia Valov, Burkhard Beckhoff   +9 more
wiley   +1 more source

NEXAFS и ИК-спектроскопия Co-допированного SrBi2Nb2O9

, 2022
The solid-phase ceramic method was used to synthesize cobalt-containing solid solutions based on SrBi2Nb2O9. NEXAFS (Near Edge X-ray Absorption Fine Structure) and IR spectroscopy were used to study the electronic state of cobalt atoms in solid cross ...
Некипелов, Сергей В., Nekipelov, Sergey V., Zhuk, Nadezhda A., Ипатова, Елена У., Жук, Надежда А., Макеев, Борис А., Рычкoва, Любoвь В., Makeev, Boris A., Ipatova, Elena U., Rychkova, Lubov V., Beznosikov, Dmitriy S., Безнoсикoв, Дмитрий С.   +11 more
core   +1 more source

Resolving Oxidative and Corrosive Calendar‐Aging via Electrolyte Engineering for Stable Lithium Metal Batteries

Advanced Energy Materials, EarlyView.
A weakly solvating ether solvent, 1,2‐dimethoxypropane (DMP), is proposed for use in localized high‐concentration electrolytes (LHCEs) for lithium metal batteries (LMBs). These DMP‐based LHCEs simultaneously suppress lithium metal corrosion and cathode degradation—two interrelated processes that accelerate calendar aging of LMBs.
Jisub Kim, Ihnkyung Jung, Kyunam Lee, Insu Hwang, Minkwan Kim, Eunseok Park, Dongmin Park, Hayoung Park, Yonggoon Jeon, Gaeun Park, Hyo Chul Ahn, Jihoon Oh, Jungwon Park, Ali Coskun, Jang Wook Choi   +14 more
wiley   +1 more source

Zur Rolle von Wasser bei der CO2‐Reduktion an defektreichem TiO2 bei niedrigen Temperaturen

Angewandte Chemie, EarlyView.
Unsere Ergebnisse unterstreichen das Potenzial von reduziertem Titandioxid als edelmetallfreiem Katalysator zur Aktivierung von CO2 und zeigen in situ die Reaktion von CO2 auf defektreichem TiO2 unter Verwendung von synchrotronbasiertem NAP‐XPS von Raumtemperatur bis 700 K.
Justin Klimek, Filip Hallböök, Niko Kruse, Fangliang Li, Sara Blomberg, Katharina Al‐Shamery, Lars Mohrhusen   +6 more
wiley   +1 more source