Results 101 to 110 of about 11,181,629 (286)

Application of X-ray diffraction with Rietveld refinement to quantify mineral composition including crystalline silica in respirable dust [PDF]

This study aimed to test the use of Rietveld refinement on respirable aerosol samples to determine the phase of respirable crystalline silica (RCS) and other minerals.
Graff, Pål, Halvorsen, Johanne Østereng, Ervik, Torunn Kringlen, Stacey, Peter, Gjengedal, Elin Lovise Folven   +4 more
core   +1 more source

High‐Entropy Engineering and External Magnetic Field Modulation Synergistically Enhance the H2S Sensing Performance of Rare‐Earth Perovskite Ferrites

Advanced Science, EarlyView.
A novel high‐entropy perovskite oxide, (Gd0.2Tb0.2Dy0.2Ho0.2Er0.2)FeO3, was successfully synthesized for advanced hydrogen sulfide gas detection. By synergistically coupling high‐entropy‐induced local lattice distortion with weak magnetic field modulation, the tailored material generates abundant active sites. This innovative dual strategy dramatically
Yunfei Wang, Min Zhang, Rui Li, Xiaolong Yao, Zhaofeng Wu, Fengdong Qu, Shan Qiu, Zhenjiang Li   +7 more
wiley   +1 more source

One‐Pot Direct Recycling of Spent LiCoO2 via Synergistic Binder Defluorination and Phase Reconstruction

Advanced Science, EarlyView.
A Li+‐DES system enables targeted defluorination and synergistic repair of spent LiCoO2 cathodes in a single medium. The regenerated material recovers a well‐ordered layered structure with a high capacity of 157.4 mAh g−1 and 83.1% capacity retention after 300 cycles, demonstrating a sustainable and efficient closed‐loop recycling strategy for lithium ...
Yingjie Hu, Songhu Ye, Fan Li, Chunhui Zhong, Bailin Xiang, Yulan Chen, Lili Zhi, Qingxia Liu, Junfeng Li, Zhixiang Chen   +9 more
wiley   +1 more source

Effect of Al3+ substitution on structural, morphological, magnetic, optical, and functional study of ZnFe2O4 nanoparticles

AIP Advances
ZnFe1−xAlxO4 (x = 0.0, 0.1, 0.3, and 0.5) samples were synthesized by the combustion method. The x-ray diffraction pattern confirms that the ferrite samples have a cubic inverse spinel structure, and Rietveld refinement adds more weight to this ...
M. Sundararajan, Kholod Dahlous, M. Ramesh, R. S. Rimal Isaac, S. Yuvaraj, Jothi Ramalingam Rajabathar, Chandra Sekhar Dash, P. Aji Udhaya   +7 more
doaj   +1 more source

6.1% Volumetric Negative Thermal Expansion Induced by the Reversible Reconstructive Phase Transition in Pb‐Free Bi1−xLnxCoO3 (Ln: Lanthanoid)

Advanced Science, EarlyView.
Perovskite‐type oxide lanthanoid‐substituted BiCoO3 exhibits a reversible negative thermal expansion (NTE) originated from the coordination change from the CoO5 pyramid to the CoO6 octahedron due to melting of the dxy orbital ordering in the d6 electron configuration, and the 6.1% volume shrinkage in Bi0.82Nd0.18CoO3 is the largest ever observed in the
Yuki Sakai, Kazuki Takahashi, Shogo Wakazaki, Takumi Nishikubo, Jun Miyake, Takehiro Koike, Teppei Nagase, Takafumi Yamamoto, Kano Hatayama, Masaichiro Mizumaki, Masaki Azuma   +10 more
wiley   +1 more source

TiO6 as a Compensatory Structural Unit in Co‐Free, High‐Ni Layered Oxide for Durable Lithium‐Ion Batteries

Advanced Science, EarlyView.
Ti substitution stabilizes Co‐free high‐Ni layered oxides through both structural and electronic effects. TiO6 octahedra act as compensatory structural units that help interrupt cooperative Jahn–Teller distortion and suppress detrimental phase transitions, while the electron‐withdrawing inductive effect of Ti stabilizes the oxygen lattice. As a result,
Bixian Ying, Zhenjie Teng, Jun Wang, Honghong Tian, Charlotte von Petersdorff‐Campen, Rommel T. Tolla, Iuliia Mikulska, Linus Voigt, Sascha Nowak, Verena Naber, Alexander Schökel, Yuanming Liu, Michael Merz, Peter Nagel, Stefan Schuppler, Katja Frenzel, Adrian Jonas, Lena Mathies, Martin Winter, Karin Kleiner   +19 more
wiley   +1 more source

Phase composition and crystal structure of alumina-zirconia ceramics with varying LaAl11O18 content

Chimica Techno Acta
This study investigates the phase composition and structure of alumina-zirconia ceramics containing varying amounts of LaAl11O18 plates. The research addresses the significant influence of lanthanum hexaaluminate on the structural and physical properties
Nina Cherkasova, Kristina Antropova, Aleksandr Legkodymov, Igor Nasennik, Georgiy Krivosheev, Urusveda Popova, Maria Zhulikova   +6 more
doaj   +1 more source

Minimal Transport Units Govern Oxygen‐Defect Stabilization and Transport for Lightweight Solid Electrolytes

Advanced Science, EarlyView.
Lightweight borate chemistry combined with minimal transport units provides a new pathway for designing lightweight oxide‐ion solid electrolytes. ABSTRACT Solid electrolytes are central to electrochemical energy technologies, including fuel cells, sensors, catalysis, membrane separation, and electrolyser.
Xiaohui Li, Yongkang Zheng, Li Yang, Xiaoge Wang, Yuan Gou, Guanqun Cai, Jie Liu, Cheng Li, Kun Lin, Qiang Li, Mingxue Tang, Junliang Sun, Xianran Xing, Xiaojun Kuang   +13 more
wiley   +1 more source

Rietveld and Pair Distribution Function (PDF) analysis School 2025

In crystallography, the Rietveld method revolutionized the way in which we study the structure of materials to understand their properties. It is the aim of this intensive course to impart the Rietveld method in theory and practice.
Paola Disisto
core  

Synthesis‐Dependent Grain Boundary Density Governs Low‐Temperature Lithium Diffusion in Single‐Crystal NCM Cathodes

Advanced Science, EarlyView.
The relationship between synthesis‐dependent crystallization behavior, internal grain‐boundary density, and intrinsic lithium diffusion kinetics in single‐crystal mid‐Ni NCM cathodes is elucidated, providing practical design insights for advanced cathode materials.
Yeong Beom Kim, Jaewon Lee, Jihong Park, Seunghyeon Chae, Dohyung Kim, Gigap Han, Hyeongi Song, Jihye Jang, Jihoon Choi, Sang Mun Jeong, Yun Chan Kang, Gi Dae Park   +11 more
wiley   +1 more source