Results 111 to 120 of about 12,656 (294)

A Pore or not a Pore? Understanding Pore Size Distributions of Non‐Graphitic Carbon and Atomically‐Dispersed M‐N‐C Materials

Advanced Science, EarlyView.
Gassorption analysis of in‐plane functionalized carbons reveals small, uniform ultramicropore signatures as potential artefacts of specific adsorption of the probe gases. Low‐pressure Langmuir fitting links these features to distinct functionalities via adsorption energies, enabling straightforward quantification of otherwise inaccessible surface‐site ...
Simon W. J. Dietzmann, Asad Mehmood, Jian Liang Low, Shu‐Han Wu, Carsten Prinz, Ana Guilherme Buzanich, Jörg Radnik, Paul A. Appel, Franziska Emmerling, Tim‐Patrick Fellinger   +9 more
wiley   +1 more source

A Ceramic Network for Hybrid Solid Electrolyte Lithium Metal Batteries

Advanced Science, EarlyView.
An in‐plane aligned Ta‐LLZO ceramic network exhibits superior performance compared to conventional fillers, including single ceramic fibers and particles. The tortuosity within the polymeric phase of hybrid solid electrolytes is identified as a key parameter governing lithium‐ion transport pathways and dendrite suppression.
Luca Weckelmann, Jeong Seop Yoon, Jehad Ahmed, Krzysztof Dzieciol, Anna Windmüller, Luc Raijmakers, Sanja Tepavcevic, Hans Kungl, Venkat Srinivasan, Chih‐Long Tsai, Rüdiger‐A. Eichel   +10 more
wiley   +1 more source

Electrolyte–Framework Matching in High‐Voltage TEMPO‐COF Cathodes for Lithium Batteries

Advanced Science, EarlyView.
TEMPO‐functionalized covalent organic frameworks are investigated as high‐voltage cathodes for lithium batteries. Screening five electrolyte anions identifies lithium difluoro(oxalato)borate (LiDFOB) as the optimal electrolyte, balancing capacity, rate capability, and cycling stability, while buckypaper electrodes achieve high mass loading (40 mg cm−2)
Marilyn Esclance DMello, Nagaraj Patil, Fanni Fekecs, Sergio Pinilla, Rebeca Marcilla, Manuel Souto   +5 more
wiley   +1 more source

Donor Extended Blue TADF Dendrimer for High‐Performance Solution‐Processed OLEDs

Advanced Science, EarlyView.
A dendronized MR‐TADF emitter, DOBNA‐SpAc‐DCz, was designed to improve solubility, hole transport, and exciton dynamics for solution‐processed OLEDs. Incorporation of ter(tert‐butylcarbazole) dendrons decreases ΔEST and accelerates RISC, yielding short delayed lifetimes (∼2 µs).
Mahni Fatahi, Yuka Yasuda, Ryo Kondo, Hironori Kaji, Eli Zysman‐Colman   +4 more
wiley   +1 more source

Breaking the Trade‐Off of Mechanical Robustness and Energy Storage Capacity in Phase Change Materials Through a Molecular Design Strategy of Hard‐Segment‐Anchored/Side‐Chain‐Storage

Advanced Science, EarlyView.
To decouple mechanical robustness and energy storage capacity in phase change materials (PCMs), a series of polyurethane‐based PCMs bearing crystallizable alkyl side chains are synthesized via a hard‐segment‐anchored/side‐chain‐storage molecular design.
Huizhou Luo, Hebo Shi, Jun Zhang, Henghui Deng, Yongyin Zhu, Zehong Chen, Chaoqun Zhang   +6 more
wiley   +1 more source

Reconstruction of Ultrafine MnS‐Induced Vacancy‐Rich Co9S6.29 Precatalysts in Mesoporous S‐Doped N‐Rich Hollow Carbon Nanotubes Enables Dynamic O‐Vacancy Cycling for High‐Performance Zn‐Air Batteries

Advanced Science, EarlyView.
We develop vacancy‐rich Co9S6.29 precatalysts formed via ultrafine MnS‐induced lattice distortion in mesoporous S‐doped N‐rich hollow carbon nanotubes (CM@SNHCTs). This CM@SNHCT precatalyst is reconstructed into catalytically‐active cathode phases that enable efficient oxygen reduction/evolution reactions (ORR/OER) through dynamic O‐vacancy formation ...
Debarani Devi Khumujam, Saleem Sidra, Ram Babu Ghising, Dong Won Kim, Jong Hui Choi, Gwanho Lee, Benzhi Wang, Hyung Mo Jeong, Sang‐Il Choi, Do Hwan Kim, Jeung Ku Kang   +10 more
wiley   +1 more source

Non-linear media in weakly curved spacetime: optical solitons and probe pulses for gravimetry

New Journal of Physics
That light propagating in a gravitational field gets frequency-shifted is one of the basic consequences of any metric theory of gravity rooted in the equivalence principle. At the same time, also a time dependent material’s refractive index can frequency-
Alessio Belenchia, Felix Spengler, Dennis Rätzel, Daniel Braun   +3 more
doaj   +1 more source

3D‐Mixer‐Assisted High‐Entropy Doping of LiNiO2 for Co‐Free Ni‐Rich Cathodes in Lithium‐Ion Batteries

Advanced Science, EarlyView.
High‐entropy doping of Co‐free Ni‐rich LiNiO2 cathodes is achieved through a scalable 3D mixing process. Multi‐element incorporation stabilizes the layered structure, alleviates Li/Ni disorder and electrode swelling, and enhances cycling stability. This approach underscores the potential of high‐entropy strategies to deliver structurally robust and ...
Seung Ri Kim, Thillai Govindaraja Senthamaraikannan, Jun Jae Myeong, Hyung Do Kim, Dong‐Hee Lim, Eun Mi Kim, Sang Mun Jeong   +6 more
wiley   +1 more source

Combined Classical and Quantum Accelerometers for Future Satellite Gravity Missions

Earth and Space Science
Cold atom interferometry based quantum accelerometers (Q‐ACCs) are very promising for future satellite gravity missions thanks to their strength in providing long‐term stable and precise measurements of non‐gravitational accelerations.
Alireza HosseiniArani, Manuel Schilling, Benjamin Tennstedt, Alexey Kupriyanov, Quentin Beaufils, Annike Knabe, Arpetha C. Sreekantaiah, Franck Pereira dos Santos, Steffen Schön, Jürgen Müller   +9 more
doaj   +1 more source

Surface‐Spin‐Induced Magnetic Loss Enhancement in Ultralight Electromagnetic Absorbers

Advanced Science, EarlyView.
Fe3O4 nanoparticles with different hollow rates were synthesized to demonstrate the key role of surface moment in magnetic loss process. Using the same volume filling ratio, the 54.1% hollow Fe3O4 absorber represents about 20% enhancement in the imaginary part (μ'') than solid particles due to the coexisting magnetic resonance of inside and outside ...
Ruimin Ren, Ke Yang, Chichong Lu, Song Ma, Bowen Zheng, Zhenhui Ma   +5 more
wiley   +1 more source