Results 11 to 20 of about 251 (141)

Atomic Level Fabrication of Oxychloride Interface for High-Rate and High-Voltage Lithium-Ion Batteries. [PDF]

open access: yesAngew Chem Int Ed Engl
Synthesis of a lithium‐ion conductive aluminum‐based oxychloride (LAOC) thin film is realized by a facile atomic‐level chemical fabrication method. LAOC coating enables lithium cobalt oxide (LCO) cathode superior cycling performance at high rates and elevated voltages, owing to the fast interfacial ionic transport and excellent interfacial stability ...
Sun Y   +11 more
europepmc   +3 more sources

Atomic Precision CoCu Heterodimers with Pseudo-D<sub>3h</sub> Symmetry Enable Tandem Nitrate Reduction. [PDF]

open access: yesAdv Sci (Weinh)
The Co─Cu heterodimer anchored on nitrogen‐doped graphene oxide substrate facilitates electrochemical nitrate reduction in alkaline medium. Co site promotes water dissociation to supply a proton, while Cu sites enhance nitrate adsorption and activation.
Rajan APS   +5 more
europepmc   +2 more sources

O<sub>2</sub>-Accessible Fe-N<sub>4</sub> Active Site Density Boosts Efficient Oxygen Reduction to Fuel-Cell Level. [PDF]

open access: yesAdv Mater
This study investigates the role of hierarchical nanostructure design in optimizing oxygen mass transport for the oxygen reduction. Using atomically dispersed Fe–N–C catalysts with solid, yolk‐shell, and hollow structures, it demonstrates that the yolk‐shell architecture provides superior O2 accessibility to active Fe–N4 sites.
Zhang T   +7 more
europepmc   +2 more sources

Deformation characteristics and shakedown behaviors of frozen silty clay under complex cyclic stress paths

open access: yesYantu gongcheng xuebao, 2023
The deformation characteristics and stability behaviors of frozen soil under complex cyclic stress paths play an important role in the long-term stability of cold region engineering.
WANG Yapeng 1, 2, 3, LI Guoyu 1, 2, 3, CHEN Dun 1, 3, MA Wei 1, 2, ZHANG Xuan 4
doaj   +1 more source

Dynamic bearing capacity of a lattice girder in regard to cyclical impulse loads [PDF]

open access: yesBiuletyn Wojskowej Akademii Technicznej, 2015
This paper discusses the behavior of the statically single undetermined steel lattice girder under the pointed node load. This load action has the nature of the repeating cycles of the pulse[i]I = P·τ[/i][sub][i]0[/i][/sub]. For the assumed time [i]τ[/i][
Aneta Brzuzy
doaj   +1 more source

<sup>*</sup>OH Adsorption-Mediated Electrochemical Oxidation of 5-Hydroxymethylfurfural to Selective 2,5-Furandicarboxylic Acid at pH 12. [PDF]

open access: yesAdv Sci (Weinh)
Under the weakly alkaline condition, at pH 12, the *OH adsorption–mediated mechanism of direct aldehyde oxidation is demonstrated to complete HMF oxidation to FDCA, obtaining >95% selectivity and yield. In OH−‐deficient media, high FDCA selectivity is achieved on the CuO/NiOOH interface, a synergistic active site, where Cu enhances *OH utilization, and
Lee E   +8 more
europepmc   +2 more sources

Experimental and Numerical Evaluation of Residual Displacement and Ductility in Ratcheting and Shakedown of an Aluminum Beam

open access: yesApplied Sciences, 2020
Safety assessment of structures can be obtained employing limit design to overcome uncertainties concerning actual response due to inelastic constitutive behavior and more generally to non-linear structural response and loads’ random variability.
Simone Palladino   +5 more
doaj   +1 more source

A study on plastic strain accumulation caused by traveling of temperature distribution synchronizing with temperature rise

open access: yesMechanical Engineering Journal, 2016
The prevention of excessive deformation by thermal ratcheting is important in the design of high-temperature components of fast breeder reactors (FBR). This includes evaluation methods for a new type of thermal ratcheting caused by an axial traveling of ...
Satoshi OKAJIMA
doaj   +1 more source

Characteristics of cumulative plastic strain and critical dynamic stress of frozen clay under principal stress rotation

open access: yesYantu gongcheng xuebao, 2023
As the foundation of cold region projects and the supporting wall of artificial freezing projects, the frozen soil often bears the disturbance of dynamic loads.
ZHANG Binlong 1, 2, WANG Dayan 2, MA Wei 2, LEI Lele 3, ZHOU Zhiwei 2
doaj   +1 more source

Experimental Research on the Repeated Impacts Behavior of Aluminum Corrugated-Core Sandwich Structures

open access: yesShock and Vibration, 2022
Engineering structures in aviation and marine experience complex loads and are often affected by repeated impact loads. The damage accumulated from deflection in the process of repeated impact will often seriously affect the safety of the structure.
Yang Zeng, Jingxi Liu, Yanjie Zhao
doaj   +1 more source

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