Results 111 to 120 of about 119,278 (296)

Ultralow‐Frequency Epsilon‐Near‐Zero States in 3D‐Printed High‐Entropy Alloy Metacomposites for Ultra‐Thin Perfect RF Absorption

Advanced Materials, EarlyView.
Rozanov causality limit—a compulsive proportional thickness‐wavelength relationship (nd ∝ λ)—makes it challenging to develop perfect absorption with both thin thickness and low frequency. Herein, a cocktail effect in high‐entropy alloys (HEA) is crucially utilized for lowering plasma frequency to achieve epsilon‐near‐zero states, which finally enables ...
Peitao Xie, Haikun Wu, Zhenxiang Cheng, Mingxiang Liu, Yuan Liu, Weikong Pang, Runhua Fan, Yao Liu   +7 more
wiley   +1 more source

DOF phase separation of the Lennard-Jones fcc(111) surface

, 1999
Recent lattice model calculations have suggested that a full-layered crystal surface may undergo, under canonical (particle-conserving) conditions, a preroughening-driven two-dimensional phase separation into two disordered flat (DOF) regions, of ...
Broughton, Broughton, C.S. Jayanthi, Celestini, Celestini, Chen, Chen, Dash, Day, den Nijs, Denier van der Gon, E. Tosatti, F. Celestini, F. Ercolessi, Jagla, Jayanthi, Levi, Mazzeo, Naghizadeh, Nikas, Phillips, Prasad, Prestipino, Prestipino, Prestipino, Rieutord, Rommelse, Rosato, Stoltze, Valkealahti, Weichman, Youn, Youn   +32 more
core   +4 more sources

Operando X‐ray Spectroscopy Study of Pd and Pd–Au Laterally Condensed Catalysts during Selective Acetylene Hydrogenation: The Role of Carbon

Advanced Materials, EarlyView.
The selective hydrogenation of acetylene over laterally condensed Pd and Pd–Au catalysts (LCCs) was investigated using operando X‐ray absorption and photoelectron spectroscopy in combination with density functional theory. Pd‐LCCs were found to incorporate significantly more carbon into the metal lattice than Pd–Au LCCs, where the carbon uptake governs
Eylül Öztuna, Thomas Götsch, Daniel Cruz, Patrick Zeller, Olga V. Vinogradova, Zehua Li, Christian Rohner, Franz‐Philipp Schmidt, Zahra Gheisari, Alexander Steigert, Martin Muske, Michael Hävecker, Eugen Stotz, Iryna Antonyshyn, Frank Girgsdies, Olaf Timpe, Thomas Lunkenbein, Vanessa J. Bukas, Karsten Reuter, Robert Schlögl, Katarzyna Skorupska, Axel Knop‐Gericke, Beatriz Roldán Cuenya   +22 more
wiley   +1 more source

Maximize the Electrocatalytic Activity of Pt Toward Ethanol Oxidation via Engineering PdPt1 Single‐Atom Alloy Skin

Advanced Materials, EarlyView.
Maximizing atomic utilization of Pt is crucial for efficient electrocatalysis. We constructed a tensile‐strained PdPt1 single‐atom alloy (SAA) skin by implanting atomically dispersed Pt onto the surface of intermetallic Pd5Bi3 core‐ultrathin Pd shell octahedrons, fully exposing active Pt atoms to boost ethanol oxidation electrocatalysis.
Wen Chen, Lei Xie, Yong Li, Shuiping Luo, Xinyi Cai, Tangting Li, Junhao Qiu, Zhichao Yang, Zhihan Yuan, Shao‐Qing Liu, Xian‐Zhu Fu, Jing‐Li Luo   +11 more
wiley   +1 more source

FORMATION AND EVOLUTION OF FCC PHASE IN TITANIUM NANOPARTICLES

Acta Physica Sinica, 1995
Titanium nanoparticles were synthesized by gas condensation method, where the particles with different average diameters were obtained by varying the gas pressure in the atmosphere of argon and helium, respectively.
null YANG MING-CHUAN, null XU JIAN, null SUN XIU-KUI, null WEI WEN-DUO, null HU ZHUANG-LING   +4 more
openaire   +1 more source

Energy‐Efficient, Sustainable Cascade Glucose Electrooxidation into Glucaric Acid

Advanced Materials, EarlyView.
This study presents a tandem system that efficiently converts glucose into glucaric acid while generating renewable electricity. By decoupling the oxidation process into two cascaded steps, the system achieves an overall 90% Faradaic efficiency and 80% conversion efficiency at ∼0.6 VRHE, significantly reducing energy consumption compared to traditional
Mingming He, Chao Huang, Mingzi Sun, Ruixuan Wang, Yun Song, Jianjun Su, Weihua Guo, Yinger Xin, Qiang Zhang, Yong Liu, Geng Li, Zihao Li, Rui Xue, Bolong Huang, Ben Zhong Tang, Ruquan Ye   +15 more
wiley   +1 more source

Modulating Ru-Co bond lengths in Ru1Co single-atom alloys through crystal phase engineering for electrocatalytic nitrate-to-ammonia conversion

Nature Communications
Single atom alloys (SAAs) with maximum atomic efficiency and uniform active sites show great promise for heterogeneous catalytic applications. Meanwhile, crystal phase engineering has granered significant interest due to tailored atomic arrangements and ...
Xiaojuan Zhu, Yi-Chi Wang, Kaiyu Qu, Leyang Song, Jing Wang, Yushuang Gong, Xiang Liu, Cheng-Fei Li, Shiling Yuan, Qipeng Lu, An-Liang Wang   +10 more
doaj   +1 more source

An FCC phase in a metastable β-titanium alloy

Philosophical Magazine Letters, 2014
A new face-centred-cubic phase is reported here in a metastable β-titanium alloy with an equilibrium α–β structure, formed due to solution treatment and ageing. The face-centred-cubic phase is located inside the close-packed-hexagonal α-phase and has an orientation relationship with α-phase.
R. Sarkar, P. Ghosal, K.S. Prasad, T.K. Nandy, K.K. Ray   +4 more
openaire   +1 more source

Spin-flux phase in the Kondo lattice model with classical localized spins

, 2000
We provide numerical evidence that a spin-flux phase exists as a ground state of the Kondo lattice model with classical local spins on a square lattice. This state manifests itself as a double-Q magnetic order in the classical spins with spin density at ...
Agterberg, D. F., Yunoki, S.
core   +1 more source

Self‐Assembled Monolayers in p–i–n Perovskite Solar Cells: Molecular Design, Interfacial Engineering, and Machine Learning–Accelerated Material Discovery

Advanced Materials, EarlyView.
This review highlights the role of self‐assembled monolayers (SAMs) in perovskite solar cells, covering molecular engineering, multifunctional interface regulation, machine learning (ML) accelerated discovery, advanced device architectures, and pathways toward scalable fabrication and commercialization for high‐efficiency and stable single‐junction and
Asmat Ullah, Ying Luo, Stefaan De Wolf
wiley   +1 more source