Results 111 to 120 of about 377,794 (331)

Na2S Presodiation Enables Long Cycling Anode‐Free Sodium Batteries via Rapid Spontaneous Reactions

Advanced Functional Materials, EarlyView.
Na2S with high sodium content is utilized as a sodium replenishment material for AFSBs. The spontaneous reaction between polysulfides and Na3−xV2(PO4)3, complete conversion from Na2S to sulfur is achieved under low voltage and catalyst‐free conditions. With the assistance of the additionally supplied sodium ions, the Na2S@NVP||Zn AFSBs retain 70.8% of ...
Yujie Chen, Chao Ye, Huan Li, Chun‐Chuan Kao, Jiahao Liu, Shi‐Zhang Qiao   +5 more
wiley   +1 more source

The African Light Source: history, context and future

Journal of Synchrotron Radiation
The African Light Source (AfLS) project is now almost eight years old. This article assesses the history, current context and future of the project.
Simon H. Connell, Kathleen Dollman, Gihan Kamel, Sameen A. Khan, Edward Mitchell, Sekazi K. Mtingwa, Marcus C. Newton, Prosper Ngabonziza, Emmanuel Nji, Lawrence Norris, Michele Zema   +10 more
doaj   +1 more source

Supercompliant Lattice Boosts n‐type AgSbTe2 Thermoelectrics

Advanced Functional Materials, EarlyView.
The supercompliant lattice design enables the first realization of n‐type electrical transport in AgSbTe2 by overcoming intrinsic electron‐killer defects and exceeding the doping limits imposed by the conventional Hume–Rothery rule. Accordingly, the best performance n‐type Ag0.8Na0.3Sb0.6Bi0.4Te2 sample achieves a low κ of 0.27 W·m−1·K−1 that ...
Ruoyan Li, Shuai Han, Chunyu Zhang, Suyao Liu, Wen Yin, Yuanguang Xia, Pengfei Liu, Zhen‐Hua Ge, Dongyao Zhao, Bingchao Yang, Lulu Huang, Zhi Zhang, Yongsheng Zhang, Yuan Yu, Bangzhi Ge, Chongjian Zhou   +15 more
wiley   +1 more source

Polarization from a Radially Stratified GRB Outflow

Galaxies
While the dominant radiation mechanism of gamma-ray bursts (GRBs) remains a question of debate, synchrotron emission is one of the foremost candidates to describe the multi-wavelength afterglow observations.
Augusto César Caligula do Espírito Santo Pedreira, Nissim Fraija, Antonio Galván-Gámez, Boris Betancourt Kamenetskaia, Simone Dichiara, Maria G. Dainotti, Rosa L. Becerra, Peter Veres   +7 more
doaj   +1 more source

Synchrotron Radiation from the Galactic Center in Decaying Dark Matter Scenario

, 2008
We discuss the synchrotron radiation flux from the Galactic center in unstable dark matter scenario. Motivated by the anomalous excess of the positron fraction recently reported by the PAMELA collaboration, we consider the case that the dark matter ...
G. B. Rybicki, Koji Ishiwata, M. S. Longair, M. S. Longair, Shigeki Matsumoto, Takeo Moroi   +5 more
core   +2 more sources

“Writing” Crystal Phases in Amorphous Calcium Carbonate via Laser‐Induced Patterned Transformations

Advanced Functional Materials, EarlyView.
Laser‐induced crystallization enabling the patterning of amorphous calcium carbonate into various distinct phases is introduced. This approach provides spatial control over polymorph selection, both crystalline and amorphous, inspired by biomineralization pathways.
Hadar Shaked, Iryna Polishchuk, Niv Ben‐Arie, Daniela Dobrynin, Javier Gainza, Alexander Katsman, Boaz Pokroy   +6 more
wiley   +1 more source

Synchrotron radiation and solar radio outbursts at microwave frequencies [PDF]

, 1959
T. Takakura
openalex   +1 more source

Atomic Size Misfit for Electrocatalytic Small Molecule Activation

Advanced Functional Materials, EarlyView.
This review explores the application and mechanisms of atomic size misfit in catalysis for small molecule activation, focusing on how structural defects and electronic properties can effectively lower the energy barriers of chemical bonds in molecules like H2O, CO2, and N2.
Ping Hong, Changfan Xu, Huaping Zhao, Yong Lei   +3 more
wiley   +1 more source

Decoding the Structure of Benzodithiophene Polymers for High‐Efficiency Organic Solar Cells

Advanced Functional Materials, EarlyView.
This study reveals a unique solid mesophase in top‐performing benzodithiophene‐based polymers for solar cells, comprising stacked solid‐like and liquid‐like layers. Combining nanoscale fibrillar domains with amorphous regions, it introduces a new structural paradigm.
Matteo Sanviti, Sara Marina, Xabier Rodriguez‐Martínez, Jesika Asatryan, Valerio Di Lisio, Sandra Hultmark, Junkal Gutierrez, Eduardo Solano, Jeromy J. Rech, Eugenio L. Solla, Wei You, Agnieszka Tercjak, M. Eugenio Vázquez, Daniele Cangialosi, Christian Müller, Harald Ade, Jaime Martin   +16 more
wiley   +1 more source

Volcanoes Erupt Stressed Quartz Crystals

Geophysical Research Letters, 2019
Volcanic eruptions are energetic events driven by the imbalance of magmatic forces. The magnitudes of these forces remain poorly constrained because they operate in regions that are inaccessible, either underground or dangerous to approach.
K. S. Befus, M. Manga, C. Stan, N. Tamura   +3 more
doaj   +1 more source