Results 151 to 160 of about 216,669 (280)

Photonic Time Crystals and Time‐Varying Electromagnetic Metamatter: A New Direction for Ultrafast Tunable Photonic and Microwave Materials and Devices

Advanced Science, EarlyView.
Photonic time crystals (PTCs) are systems in which electromagnetic parameters are modulated periodically in time, producing momentum bandgaps via temporal scattering rather than spatial Bragg processes. This review examines the theoretical frameworks, modeling, and computational tools for time‐varying media, and summarizes experimental demonstrations ...
Ranjan Kumar Patel, Shriram Ramanathan, Ronald P. Jenkins, Michael J. Carter   +3 more
wiley   +1 more source

CO Spillover Is Not a Promoter for C─C Bond Formation in CO2 Electroreduction on Cu‐Ag Bimetallic Catalysts

Advanced Science, EarlyView.
CO spillover via the Cu‐Ag interface does not promote C‐C coupling. ABSTRACT Cu‐based bimetallic catalysts have been shown to improve the multi‐carbon (C2+) selectivity in CO2 electroreduction, with the assumption that CO spillover from the CO‐selective catalysts to adjacent Cu domains via their bimetallic interface promotes C–C coupling. Here, through
Beining Xu, Zhaochun Liu, Xinjuan Du, Wen Yan, Yunsong Yu, Ionut Tranca, Frederik Tielens, Ming Ma   +7 more
wiley   +1 more source

Distillation as a meaningful water source for lithic lichens: the Negev case. [PDF]

Planta
Kidron GJ, Kronenfeld R, Starinsky A.
europepmc   +1 more source

Thermal Cyclotrimerization Bridges Polymer‐Filler Interfaces for High‐Performance CO2 Separation Membranes

Advanced Science, EarlyView.
Thermal cyclotrimerization of nitriles converts interfacial discontinuity in MAF‐stu‐1/PIM‐1 MMMs into a continuity‐enhanced junction. Triazine–Zn2+ coordination between TR‐PIM chains and MAF‐stu‐1, together with hydrogen bonding and π–π stacking, lowers interfacial tension and builds selective CO2 pathways, enabling > 10 000 barrer CO2 permeability ...
Zhihong Lin, Kaifang Wang, Ziyi Yuan, Jiali Tang, Xiaozhen Liu, Liu Chen, Lu Shao, Xuezhong He   +7 more
wiley   +1 more source

Tailoring Intermediate Adsorption Through d‐band Mismatch Strategy of Heterojunction to Achieve Industrial Overall Water Splitting

Advanced Science, EarlyView.
This paper demonstrates the fabrication of a Ni3Mo/Ni3N junction to investigate d‐band engineering and elucidate the specific roles of Ni3Mo and Ni3N active sites in improving catalytic activity. Through integrated spectroscopic characterization and first‐principles modeling, for the first time, a d‐band mismatch mechanism has been proposed to ...
Jia Liu, Jiawen Sun, Yi‐Ru Hao, Yaqin Chen, Chunhao Li, Le‐Le Ma, Jing Sun, Zhonglong Zhao, Jiangwei Zhang, Hui Xue, Qin Wang   +10 more
wiley   +1 more source

Load Transfer Theoretical Analysis of a Rigid Aircraft Pavement Contraction Joint Using a Novel Approach for Crack Characterization. [PDF]

Materials (Basel)
Jamieson S, White G.
europepmc   +1 more source

Cation‐Driven Valence Change Mechanism in 2D AgCrS2 for Ultralow‐Power and Reliable Memristors

Advanced Science, EarlyView.
A 2D AgCrS2 volatile memristor is shown to switch via a cation‐driven valence change mechanism, where Ag+ reversibly intercalates into tetrahedral vacancies between CrS2 layers to form a conductive Ag2CrS2 pathway without elemental Ag metallization. The device exhibits 0.2 V switching, nA‐compliance power down to 200 pW, and endurance beyond 3 × 105 ...
Yueqi Su, Minghao Wang, Xiaolin Tai, Yuhua Liu, Yue Lin, Yuqiao Guo, Jing Peng, Yi Xie, Changzheng Wu   +8 more
wiley   +1 more source

Dirac bound states in the continuum in honeycomb photonic crystal slabs. [PDF]

Sci Rep
Chern RL, Kao YC, Hwang RR.
europepmc   +1 more source

Atomic Tuning of Metal‐Support Interactions for Pathway‐Selective CO2 Photoreduction on TiO2

Advanced Science, EarlyView.
Single‐atom Fe and Cu catalysts anchored on TiO2 steer photocatalytic CO2 reduction toward distinct pathways. Fe sites favor rapid *CO desorption and selective CO formation, whereas Cu sites stabilize *CHO intermediates, enabling deep reduction and C─C coupling. Combined spectroscopy and DFT calculations reveal how metal–support interactions and oxygen
Dongyun Kim, Wonjae Ko, Byoung‐Hoon Lee, Sanghoon Kim, Yun Do Kim, Hyunsoo Ahn, Yoon Jung, Chan Woo Lee, Kug‐Seung Lee, Eunhee Gong, Junho Lee, Minho Kim, Taeghwan Hyeon, Su‐Il In   +13 more
wiley   +1 more source

Numerical study on fatigue failure mechanism of reinforced concrete slabs under coupled action of corrosion and cyclic loading. [PDF]

Sci Rep
Wang S, Zhao Q, Song P, Yang F.
europepmc   +1 more source