Results 71 to 80 of about 13,531 (230)

Topological Defects in Carbon Matrix Are Efficiently Constructed by Joule Thermal Shock for Catalyzing the Growth of Carbon Nanotubes

Advanced Science, EarlyView.
The Joule thermal shock technique ensures the efficient construction of topological defects in the carbon matrix because the instantaneous cooling suppresses the graphitization rearrangement of the heteroatom removal sites. This topological defect carbon can activate carbon source molecules by electron transfer, and further grow into carbon nanotubes ...
Bin Wang, Shizhen Dong, Guoan Xie, Yanling Yu, Nuoxin Wang, Huakun Liu, Xian Jian, Jinyang Li, Zuowan Zhou, Jianhui Qiu   +9 more
wiley   +1 more source

The Growth Behavior of Amorphous Hydrogenated Carbon a-C:H Layers on Industrial Polycarbonates—A Weak Interlayer and a Distinct Dehydrogenation Zone

C, 2021
Polycarbonate (PC) is a material that is used in many areas: automotive, aerospace engineering and data storage industries. Its hardness is of particular importance, but some applications are affected by its low wettability or scratch susceptibility ...
Torben Schlebrowski, Melanie Fritz, Lucas Beucher, Yongxin Wang, Stefan Wehner, Christian B. Fischer   +5 more
doaj   +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

Cryogenic Carbon Monoxide Oxidation on Cuprous Oxide

Angewandte Chemie, Volume 138, Issue 1, 2 January 2026.
A reconstructed Cu2O surface with pyramidal units (PY) contains both adsorption and reaction sites for CO oxidation. A suite of spectroscopy techniques and calculations were used to characterize the fundamental surface chemistry occurring below 100 K, where typically a metal/oxide interface is required.
Burcu Karagoz, Tianhao Hu, Joakim Halldin Stenlid, Xiaoming Hu, Markus Soldemo, Frank Abild‐Pedersen, Kess Marks, Henrik Öström, Dario Stacchiola, Jonas Weissenrieder, Ashley R. Head   +10 more
wiley   +2 more sources

Magnetic susceptibility, EPR, NEXAFS and XPS spectra of Fe-doped CaBi2Nb2O9

Journal of Materials Research and Technology, 2020
In order to study the electronic state of Fe atoms and interatomic exchange interactions in solid solutions of Bi2CaNb2−2xFe2xO9−δ with perovskite structure, methods of magnetic dilution, NEXAFS, XPS and EPR spectroscopy were used.
N.A. Zhuk, V.P. Lutoev, B.A. Makeev, S.V. Nekipelov, A.V. Koroleva, A.V. Fedorova, M.V. Yermolina, D.S. Beznosikov, L.O. Karlova   +8 more
doaj   +1 more source

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

Combinatorial Nb‐Doped TiO2 Wafers: Phase‐Defect Coengineering for Efficient and Reusable Photocatalysis

Advanced Energy and Sustainability Research, EarlyView.
Combinatorial Nb‐doped TiO2 wafers with a lateral dopant gradient enable rapid mapping of how phase composition and defects influence photocatalytic activity. Optimized Nb content generates mixed anatase–rutile phases together with beneficial Ti3+ and oxygen vacancy defects, boosting dye‐degradation efficiency fivefold.
Raja Elrahoumi, Dinushi Munasingha Mudiyanselage, Amar Salih, Matthew Arnold, Angus Gentle, Estelle Wagner, William Maudez, Sanaa A. Alzahrani, Matthew R. Phillips, Giacomo Benvenuti, Cuong Ton‐That   +10 more
wiley   +1 more source

Adsorption of 5-Fluorouracil on Au(111) and Cu(111) surfaces

AIP Advances, 2019
The adsorption of 5-Fluorouracil (5FU) on Au(111) and Cu(111) surfaces as a function of molecular coverage and temperature has been studied, using x-ray photoelectron spectroscopy (XPS) and near-edge x-ray absorption fine structure (NEXAFS) spectroscopy.
Andrew Cassidy, Nataliya Tsud, Sofiia Bercha, Vitaliy Feyer, Kevin C. Prince, Oksana Plekan   +5 more
doaj   +1 more source

Photolysis of Fluorinated Graphites with Embedded Acetonitrile Using a White-Beam Synchrotron Radiation

Nanomaterials, 2022
Fluorinated graphitic layers with good mechanical and chemical stability, polar C–F bonds, and tunable bandgap are attractive for a variety of applications.
Galina I. Semushkina, Yuliya V. Fedoseeva, Anna A. Makarova, Dmitry A. Smirnov, Igor P. Asanov, Dmitry V. Pinakov, Galina N. Chekhova, Alexander V. Okotrub, Lyubov G. Bulusheva   +8 more
doaj   +1 more source

Evidence for short range orbital order in paramagnetic insulating (Al,V)_2O_3

, 2001
The local structure of (Al_0.06V_0.94)_2O_3 in the paramagnetic insulating (PI) and antiferromagnetically ordered insulating (AFI) phase has been investigated using hard and soft x-ray absorption techniques.
A. I. Frenkel, A. Nateprov, A.I. Frenkel, A.L. Ankudinov, A.R. Williams, C. Castellani, C. Castellani, C. Castellani, D.B. McWhan, D.B. McWhan, F. Mila, F.W. Lytle, G.M. Joshi, J. Goulon, J. Spalek, J. Will, J.-H. Park, K. Held, L. Tröger, L.F. Mattheiss, M. Klemm, M. L. denBoer, M.J. Rozenberg, O. Müller, P. Pfalzer, P. Pfalzer, P.D. Dernier, P.D. Dernier, R. Shiina, S. Calvin, S. Horn, S.Y. Ezhov, V. Eyert, V. Eyert, V. Eyert, V. Eyert, W. Bao, W. Bao   +37 more
core   +1 more source