Results 61 to 70 of about 13,692 (260)

Theory Guided Fine‐Tune of Strain Effects in Pt Ternary Alloy via Rare Earth Templating: Achieving High Performance PEMFCs Catalysts

Advanced Materials, EarlyView.
Theory‐guided strain engineering and rare‐earth templating are combined to create Pt5(Ce)Co@Pt multilayer nanoparticles with a Pt5Co‐like sublayer that fine‐tunes *OH binding near the ORR volcano optimum. The resulting catalyst delivers exceptional mass activity and remarkable long‐term PEMFC durability, revealing a strategy for designing highly active
Qi Zhang, Hong Zhang, Sungho Jeon, Erika Ortega Ortiz, Brooke E. Vander Pas, Guangqi Zhu, Yi‐Kai Lien, Chenzhao Li, Huayu Guo, Baixu Zhu, Yaroslav Losovyj, Gabriel M. Filippelli, Xingchen Ye, Eric A Stach, Ping Liu, Jian Xie   +15 more
wiley   +1 more source

A Family of Sodium Solid‐State Electrolytes Based on the NaGaxAl1‐xCl4 Solid Solution

Advanced Materials Interfaces, EarlyView.
ABSTRACT Sodium‐based metal chloride solid electrolytes are promising for sodium solid‐state batteries due to their excellent oxidation stability, which, as shown for Li halides, can coexist with high ionic conductivity. To explore cationic substitution effects, we synthesized NaGaxAl1‐xCl4 (0 ≤ x ≤ 1) via ball milling and investigated structural and ...
Hao Guo, Matteo Bianchini
wiley   +1 more source

Mechanical Stress Evolution in Polycrystalline Ge Thin Films Under MeV Ion Irradiation

Advanced Materials Interfaces, EarlyView.
Irradiation of polycrystalline Ge thin films with 1.8 MeV Au ions alters residual stress through defect generation and lattice expansion. Increasing fluence drives progressive lattice disorder and eventual amorphization. Polycrystalline Ge resists amorphization longer than crystalline Ge, as grain boundaries facilitate defect diffusion, significantly ...
Karla J. Paz Corrales, Aaron Reupert, Kevin Lubig, Frank A. Müller, Berit Marx‐Glowna, Ralf Röhlsberger, Till Weickhardt, Giancarlo Soavi, Martin Hafermann, Elke Wendler, Carsten Ronning   +10 more
wiley   +1 more source

Pyrolysis Induced Interphase and Structural Stabilization of Silicon‐Tin Disulfide/PAN Composite Electrode Materials for Li‐Ion Batteries

Advanced Materials Interfaces, EarlyView.
A Si and SnS2 based dual‐alloy anode material for metal‐ion battery applications with improved structural, interfacial and electrochemical properties is synthesized via a single‐step solid‐state pyrolysis process. During the pyrolysis step, SnS2 and Si are embedded in a porous, carbonized PAN‐based matrix, which is electronically and ionically ...
Akzhan Bekzhanov, Freddy Kleitz, Damian M. Cupid   +2 more
wiley   +1 more source

RIETVELD TEXTURE REFINEMENT ANALYSIS OF LINDE TYPE A ZEOLITE FROM X-RAY DIFFRACTION DATA [PDF]

Journal of Engineering Science and Technology, 2018
Rietveld method was used to conduct a texture refinement analysis for Linde type A zeolite prepared by hydrothermal conditions of 100 ºC for 4 h. Material Analysis Using Diffraction software, which is an open access/user-friendly software, was used to ...
SAMA M. AL-JUBOURI, BASMA I. WAISI, STUART M. HOLMES   +2 more
doaj  

Application of Evolutionary Rietveld Method Based XRD Phase Analysis and a Self-Configuring Genetic Algorithm to the Inspection of Electrolyte Composition in Aluminum Electrolysis Baths

Crystals, 2018
The technological inspection of the electrolyte composition in aluminum production is performed using calibration X-ray quantitative phase analysis (QPA).
Igor Yakimov, Aleksandr Zaloga, Petr Dubinin, Oksana Bezrukovа, Aleksandr Samoilo, Sergey Burakov, Eugene Semenkin, Maria Semenkina, Eugene Andruschenko   +8 more
doaj   +1 more source

Investigation of Structural and Thermal Evolution in Novel Layered Perovskite NdSrMn2O5+δ via Neutron Powder Diffraction and Thermogravimetric Analysis

International Journal of Chemical Engineering, 2020
Neutron diffraction is one of the best methods for structural analysis of a complex, layered perovskite material with low symmetry by accurately detecting the oxygen positions through octahedral tilting.
Shammya Afroze, Duygu Yilmaz, Md Sumon Reza, Paul F. Henry, Quentin Cheok, Juliana H Zaini, Abul K. Azad, Alibek Issakhov, Milad Sadeghzadeh   +8 more
doaj   +1 more source

3D Printing of Highly Dense and Translucent Zirconia Parts for Dental Applications: Effect of Filament Overlapping

Advanced Materials Technologies, EarlyView.
This study formulated a 5Y‐PSZ zirconia paste for extrusion‐based additive manufacturing via direct ink writing, producing dense ceramic structures for dental applications. A colloidal approach with 47 vol% nanometric powder and tailored additives optimized rheology and printability.
Juliana de Freitas Gouveia Silva, Manuel Fellipe Rodrigues Pais Alves, Ana Carolina da Silva, Tiago Moreira Bastos Campos, Renata Marques De Melo, Susana Maria Henriques Olhero   +5 more
wiley   +1 more source

Mathematical Methods for the Analysis of Polycrystal Phase Evolutions

EPJ Web of Conferences, 2016
Two methods for an automatic analysis of the temporal evolution of a multiphase polycrystalline sample are described: The Upeak method, analyzing the spectra formally, i.e., carrying the peak search in them, and so describing the evolution in terms of ...
Zlokazov V.B., Bobrikov I.A., Balagurov A.M.   +2 more
doaj   +1 more source

The Influence of Mesoscale Particle Structure on the Electrode Degradation and Resultant Electrochemistry of Lithium Ion Cells With Nickel Rich Lithium Nickel Manganese Cobalt Oxide Positive Electrodes

Advanced Materials Technologies, EarlyView.
Milled polycrystalline NMC811 cathode (MPC NMC) with smaller secondary particle and higher surface area had 1) greater cathode tortuosity, 2) reduced surface Ni on the cycled MPC cathodes consistent with surface reconstruction, and 3) increased Ni deposition from cathode‐anode crosstalk, manifesting in lower functional capacity and higher impedance ...
Edelmy J. Marin Bernardez, Andrew Nicoll, David J. Arnot, Armando Rodriguez Campos, Patrick J. Barry, Marie F. Millares, Cynthia Huang, Melissa A. Guercio, Grace K. Dono, Alexis Pace, Xianghui Xiao, Cherno Jaye, Conan Weiland, Jianming Bai, Hui Zhong, Michael Drakopoulos, Zhong Zhong, Nghia T. Vo, Xiao Tong, Esther S. Takeuchi, Amy C. Marschilok, Shan Yan, Kenneth J. Takeuchi   +22 more
wiley   +1 more source