Results 11 to 20 of about 253 (158)
Atomic Precision CoCu Heterodimers with Pseudo-D<sub>3h</sub> Symmetry Enable Tandem Nitrate Reduction. [PDF]
Adv 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
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Pyrolysis-Free Formed Cooperative Coupling Pt-Co Dual-Functional Sites for Saline Electrolysis with High Adaptability. [PDF]
Adv Sci (Weinh)Through a mild pyrolysis‐free route, cooperative coupling of single cobalt atoms (CoSA) and fully exposed platinum nanoclusters (PtNC) is assembled. As expected, the as‐prepared catalysts PtNC/CPF‐Co exhibit dual‐functional performance and high adaptability, demonstrating low overpotentials of 44 mV for HER and 340 mV for OER at 10 mA cm−2 in saline ...
Yan J +5 more
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O<sub>2</sub>-Accessible Fe-N<sub>4</sub> Active Site Density Boosts Efficient Oxygen Reduction to Fuel-Cell Level. [PDF]
Adv MaterThis 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
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<sup>*</sup>OH Adsorption-Mediated Electrochemical Oxidation of 5-Hydroxymethylfurfural to Selective 2,5-Furandicarboxylic Acid at pH 12. [PDF]
Adv 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
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Dynamic bearing capacity of a lattice girder in regard to cyclical impulse loads [PDF]
Biuletyn 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
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Yantu 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
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Shakedown of elastic-thermo-plastic structures
Computer Assisted Methods in Engineering and Science, 2023 Recently formulated shakedown theorems for materials with temperature-dependent yield stress [1] are applied to evaluation of the elastic shakedown boundary.
Nikola Vranković +2 more
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MATEC Web of Conferences, 2018 In the report ways of application of the theory of shakedown of material to calculation of coverings and the bases of pavements from the granulated materials are considered.
Aleksandrov Anatoly +3 more
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Journal of Civil Engineering and Management, 2001 In this article the theory of mathematical programming is used, composing improved mathematical models of nonlinear problems of frame loading optimization at shakedown and performing its numerical experiment.
Valentinas Skaržauskas +2 more
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Materials & Design, 2021 A finite element framework is developed to resolve the intragranular fields of incompatible deformation generated intrinsically in response to applied deformation, through linear elasticity complemented by the theory of continuous distribution of ...
Diwakar Naragani +7 more
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