Results 61 to 70 of about 1,735,680 (298)

CO2‐to‐CO Conversion in a Gas‐Fed, Zero‐Gap, PEM Electrolyzer Enabled by Polycations and Nitrogen‐Doped Carbon‐Supported Cobalt Nanoparticles

Advanced Functional Materials, EarlyView.
A gas‐fed, zero‐gap, PEM CO2 electrolyzer is realized by incorporating PDDA+ ions onto the carbonaceous Co/N‐C electrocatalyst, with gaseous H2 and CO2 fed into the anode and cathode, respectively. Operating without an aqueous electrolyte, the system sustains a peak FECO of 65.1% at 100 mA cm−2. ABSTRACT Electrochemical carbon dioxide reduction (ECO2R)
Yuen Leong Chow, Hsi‐Wen Wu, Aimin Li, Yalou Guo, Duhong Chen, Jie Zhang, Paul A. Webley   +6 more
wiley   +1 more source

Strengthening mechanisms of carbon nanotube-reinforced polycrystalline magnesium composites: A molecular dynamics study

Journal of Magnesium and Alloys
Carbon nanotube (CNT)-reinforced magnesium (Mg) composites have emerged as promising lightweight structural materials due to their exceptional strength-to-weight ratio and potential for enhancing mechanical performance.
Chentong Zhao, Jiming Zhou, Guanfeng Li, Kang Yun, Lehua Qi   +4 more
doaj   +1 more source

Thermodynamic Limits to Molecular Doping in Conjugated Polymers: A Perspective on Phase Behavior and Miscibility

Advanced Materials, EarlyView.
Molecular doping of conjugated polymers is fundamentally constrained by thermodynamic phase behavior. This Perspective reframes doping efficiency and stability in terms of miscibility limits, binodals, and solvus boundaries, highlighting the role of effective interaction parameters and charge transfer.
Somayeh Kashani, Justin Neu, Sung‐Joo Kwon, Runqio Song, Zixuan Chen, Tajah Trapier, Paschalis Gkoupidenis, David Ginger, Wei You, Jasper J. Michels, Harald Ade   +10 more
wiley   +1 more source

Grain size dependence of dissipation mechanisms in nanocrystalline aluminum using molecular dynamics simulations

Nano Materials Science
The effect of grain size (GS) on modulus and dissipation determines its impact on damping. This study uncovers the phenomenon of dissipation valleys in nanocrystalline metals through molecular dynamics simulations.
Fei Wang, Li Li, Xinli Jiang, Xuelin Wang, Yujin Hu   +4 more
doaj   +1 more source

Superplastic Tensile Deformation Behavior and Microstructural Evolution of Al–Zn–Mg–Cu Alloy

Metals, 2019
The microstructural evolution of the Al−Zn−Mg−Cu alloy during the superplastic deformation process has been studied by high temperature tensile experiment.
Guangyu Li, Hua Ding, Jian Wang, Ning Zhang, Hongliang Hou   +4 more
doaj   +1 more source

Diffusion-Accommodated Grain Boundary Sliding in a Polycrystal

, 1990
A two-dimensional model for diffusional creep (Coble creep) and diffusionaccommodated grain boundary sliding in polycrystals has been developed. The results obtained for small symmetrical clusters of grains reproduce Spingam and Nix's work [Acta Metall ...
P. M. Hazzledine, J. H. Schneibel
core   +1 more source

Importance of low-angle grain boundaries in YBa2Cu3O7-delta coated conductors [PDF]

, 2008
Over the past ten years the perception of grain boundaries in YBa2Cu3O7−δ conductors has changed greatly. They are now not a problem to be eliminated, but an inevitable and potentially favourable part of the material.
N A Rutter, J H Durrell
core   +2 more sources

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Study on Grain Boundary Mechanical Behaviors of Polycrystalline γ-TiAl Using Molecular Dynamics Simulations

Metals
In this study, the molecular dynamics (MD) method was used to study the tensile deformation of polycrystalline γ-TiAl with complex and random grain orientations.
Wenjuan Zhao, Maoqing He, Chunliang Li, Wei Chen   +3 more
doaj   +1 more source

Grain boundary sliding: an ab initio simulation

, 1996
We present the results of an ab initio simulation of the sliding process at a Sigma = 5 (001) twist grain boundary in germanium. The sliding takes place through a stick-slip mechanism, mediated by rebonding processes. These in turn affect local groups of
G.P. Francis, Molteni, C ; id_orcid, M.C. Payne, Heine, V, C. Molteni, Francis, G P, V. Heine, Payne, M C   +7 more
core   +1 more source