Results 91 to 100 of about 1,738,073 (376)

Bimetallic Nanoparticles as Cocatalysts for Photocatalytic Hydrogen Production

Advanced Functional Materials, EarlyView.
Recent developments have introduced bimetallic nanoparticles as effective cocatalysts for photocatalytic systems. This review explores the rapidly expanding research on bimetallic cocatalysts for photocatalytic production of hydrogen, emphasizing the creation of carrier‐selective contacts, localized surface plasmon resonance effects, methodologies for ...
Yufen Chen, Asier Agrelo‐Lestón, Ignasi Burgués‐Ceballos, Jordi Llorca, Lluís Soler   +4 more
wiley   +1 more source

Microwave switching power divider [PDF]

, 1981
A pair of parallel, spaced-apart circular ground planes define a microwave cavity with multi-port microwave power distributing switching circuitry formed on opposite sides of a thin circular dielectric substrate disposed between the ground planes.
Johnson, R. W., Stockton, R. J.
core   +1 more source

Rapid Diagnostics of Reconfigurable Intelligent Surfaces Using Space‐Time‐Coding Modulation

Advanced Functional Materials, EarlyView.
A fast reconfigurable‐intelligent‐surface (RIS) diagnostics method is proposed based on spatio‐temporal modulation with orthogonal codes. Theoretical analysis demonstrates a clear distinction in code channel power between normal and faulty elements. Simulations validate its feasibility under high fault ratios and varying receiving angles.
Yi Ning Zheng, Lei Zhang, Xiao Qing Chen, Marco Rossi, Giuseppe Castaldi, Shuo Liu, Tie Jun Cui, Vincenzo Galdi   +7 more
wiley   +1 more source

Solvent‐Induced Octahedral Self‐Assembly of Prussian Blue and Its Applications in Sodium‐Ion Capacitors

Advanced Functional Materials, EarlyView.
This study investigates the stepwise assembly process of octahedral Prussian Blue (PB) particles in glycerol. Initially, smaller cubic PB nanoparticles form and interact in the solvent. Over time, these particles undergo dissolution and reassembly, leading to the formation of well‐defined octahedral structures with minimized surface energy.
Seunghye Jang, Carsten Korte, Sangmin Lee, Changshin Jo   +3 more
wiley   +1 more source

UAV-Based SAR-Imaging of Objects From Arbitrary Trajectories Using Weighted Backprojection

IEEE Journal of Microwaves
Synthetic aperture radars (SARs) based on uncrewed aerial vehicles (UAVs) are advantageous in comparison to existing airborne systems. Apart from cost, their main advantage is the flexibility of their flight path.
Alexander Grathwohl, Julian Kanz, Christina Bonfert, Christian Waldschmidt   +3 more
doaj   +1 more source

Environment-Stable CoxNiy Encapsulation in Stacked Porous Carbon Nanosheets for Enhanced Microwave Absorption

Nano-Micro Letters, 2020
The microwave absorbing performance of alloy@C composites can be controlled through regulating ratio of metal ions. Carbon-based alloy@C composites exhibit the potential stability of microwave absorption with almost the whole Ku band for the practical ...
Xiaohui Liang, Zengming Man, Bin Quan, Jing Zheng, Weihua Gu, Zhu Zhang, G. Ji   +6 more
semanticscholar   +1 more source

Facile Tri‐Metallic Catalyst Fabrication Using the Dynamic Hydrogen Bubble Template method

Advanced Functional Materials, EarlyView.
Porous metal catalysts are prepared using hydrogen bubbles as a natural template. By carefully selecting metal combinations and thermal treatment, the researchers tailored surface composition and structure, boosting catalytic performance. The approach offers a powerful and flexible route to designing advanced materials for green energy Abstract ...
Carlos M. S. Lobo, Bruna F. Gomes, Lu Xia, Wulyu Jiang, Tengyu Chen, Kaiqi Zhao, Laís G. Vernasqui, Hannah Kammal, Eric Liesz, Jonas Prietz, F. Pelayo García de Arquer, Christina Roth   +11 more
wiley   +1 more source

The bulk Josephson responce of the d-g-wave cuprate superconductor

, 1997
We consider the implications of the small Fermi surface for the ab-plane microwave absorption. The small Fermi surface results in two superconducting condensates.
Aebi, Bala, Belinicher, Buchholtz, Buchholtz, Chakravatry, Dessau, Flambaum, Ivlev, Legget, M.Yu. Kuchiev, Marshall, Nazarenko, O.P. Sushkov, P.V. Shevchenko, Rogovin, Scalettar, Shevchenko, Shevchenko, Suhl, Sushkov, Van Harlingen, Wells, Wollman, Xie   +24 more
core   +1 more source

Electrochemically Driven Tandem In‐Plane Reduction and FeCl3‐ Intercalation of Highly Crystalline Graphene Oxide Thin Films

Advanced Functional Materials, EarlyView.
This study presents a green processing route for high‐performance reduced graphene oxide (rGO) transparent conductive films (TCFs) using highly crystalline Brodie's GO. In‐plane electrochemical reduction forms rGO on insulating substrates without toxic reductants or heat. Subsequent FeCl₃ intercalation enhances conductivity, overcoming the transparency–
Tatsuki Tsugawa, Kazuto Hatakeyama, Junya Kawasaki, Agamoni Pathak, Kazuhito Tsukagoshi, Shintaro Ida, Takaaki Taniguchi   +6 more
wiley   +1 more source

Near-Field Microwave Microscopy of Materials Properties

, 2000
Near-field microwave microscopy has created the opportunity for a new class of electrodynamics experiments of materials. Freed from the constraints of traditional microwave optics, experiments can be carried out at high spatial resolution over a broad ...
Anlage, Steven M., Feenstra, B. J., International School for Advanced Studies, Trieste (Italy), Steinhauer, D. E., Vlahacos, C. P., Wellstood, F. C.   +5 more
core   +2 more sources