Results 11 to 20 of about 60,948 (246)

Los ortogneises peralcalinos del borde meridional de la Unidad Malpica-Tuy: caracteres geológicos, mineralógicos, geoquímicos y mineralizaciones de Y-Nb-Zr-TR asociadas

Estudios Geologicos, 1995
Se resumen en este trabajo las principales características tectónicas, mineralógicas, petrológicas y geoquímicas de tres complejos peralcalinos situados en el extremo meridional de la Unidad Malpica-Tuy, en Galicia (NO de España).
A. Martín-Izard, V. Fontenla, M. L. Valín, A. Arribas, D. Moreiras, C. Marcos-Pascual, R. Reguilón   +6 more
doaj   +1 more source

Understanding the Configurational Entropy Evolution in Metal‐Phosphorus Solid Solution for Highly Reversible Li‐Ion Batteries

Advanced Science, 2023
The high‐entropy materials (HEM) have attracted increasing attention in catalysis and energy storage due to their large configurational entropy and multiunique properties.
Yaqing Wei, Runzhe Yao, Xuhao Liu, Wen Chen, Jiayao Qian, Yiyi Yin, De Li, Yong Chen   +7 more
doaj   +1 more source

High Specific Surface Area Activated Carbon with Well-Balanced Micro/Mesoporosity for Ultrahigh Supercapacitive Performance

International Journal of Electrochemical Science, 2016
High specific surface area activated carbon derived from coconut shell was prepared using low-temperature carbonization followed by KOH activation method.
Bo Hou, Tong Zhang, Rongwei Yan, De Li, Yan Mo, Lihong Yin, Yong Chen   +6 more
doaj   +1 more source

Toward Optimized ⁸⁹Zr-Immuno-PET: Side-by-Side Comparison of [⁸⁹Zr]Zr-DFO-, [⁸⁹Zr]Zr-3,4,3-(LI-1,2-HOPO)- and [⁸⁹Zr]Zr-DFO*-Cetuximab for Tumor Imaging: Which Chelator Is the Most Suitable?

Pharmaceutics, 2022
89Zr represents a highly favorable positron emitter for application in immuno-PET (Positron Emission Tomography) imaging. Clinically, the 89Zr4+ ion is introduced into antibodies by complexation with desferrioxamine B.
Helen Damerow, Xia Cheng, Valeska von Kiedrowski, Ralf Schirrmacher, Björn Wängler, Gert Fricker, Carmen Wängler   +6 more
doaj   +1 more source

The existing forms of Zr in Mg-Zn-Zr magnesium alloys and its grain refinement mechanism

Materials Research Express, 2021
The formation of the Zr-containing phases during the solidification of Mg-Zn-Zr alloy is simulated, the structure of the Zr-containing compounds and the solid solution amount of Zr in α -Mg solid solution as well as the grain size of the as-cast alloy ...
Fangjing Xing, Feng Guo, Juan Su, Xueping Zhao, Huisheng Cai   +4 more
doaj   +1 more source

Line Saturation Thickness Calculation for Zirconium and Hafnium in Zircon Sand Samples and Its Application

Yankuang ceshi, 2014
For the determination of Zr in Zircon sand, the spectral line of Zr is mainly used. However, the spectral line of Zr Kα does not reach the saturation thickness for the fused bead, which leads to poor linearity and large errors in the results.
LI Xiao-Li, AN Shu-Qing, YU Zhao-Shui, ZHANG Qin   +3 more
doaj   +2 more sources

Coin-Cell-Based In Situ Characterization Techniques for Li-Ion Batteries

Frontiers in Energy Research, 2018
In situ characterization techniques have made a significant progress in recent years, especially in the electrochemical field. For Li-ion batteries, in situ characterization techniques refer to using analytical equipment to directly characterize ...
Liao Zhang, Xiaolong Guo, Jiangtao Huang, Yanyu Qu, Chaoqun Niu, Zhi Du, De Li, De Li, De Li, Yong Chen, Yong Chen   +10 more
doaj   +1 more source

Modification of morphology of thin nickel and zirconium films on naturally oxidized silicon substrates by annealing in vacuum

St. Petersburg Polytechnical University Journal: Physics and Mathematics
The article presents a technique for fabricating nickel island films on oxidized silicon substrates by thermal dewetting of continuous coatings. First, continuous nickel films 5 nm thick were deposited by magnetron sputtering.
Nguyen Van Tu Ahn, Gabdullin Pavel, Arkhipov Alexander   +2 more
doaj   +1 more source

Insights into Poisoning Mechanism of Zr by First Principle Calculation on Adhesion Work and Adsorption Energy between TiB₂, Al₃Ti, and Al₃Zr

Metals, 2022
Al-Ti-B intermediate alloys are widely used as grain refiners in aluminum alloys owing to the presence of Al3Ti and TiB2 phases. However, the existence of Zr in aluminum alloy melts often results in coarse grain size, leading to Al-Ti-B failure called Zr
Jianqiang Wu, Qilin Ruan, Simin Chen, Chuanchao Meng, Zhengbing Xu, Chunhua Wei, Hongqun Tang, Junsheng Wang   +7 more
doaj   +1 more source

Biomass-derived Activated Carbon for Rechargeable Lithium-Sulfur Batteries

BioResources, 2014
High-surface-area activated carbon (HSAAC) was synthesized by carbonizing coconut shells and subsequently activating the material with KOH. The as-prepared HSAAC had a mostly microporous structure (with small mesoporous inclusions) and exhibited a high ...
Min Liu, Yong Chen, Ke Chen, Na Zhang, Xiaoqin Zhao, Fenghui Zhao, Zhifeng Dou, Xiangming He, Li Wang   +8 more
doaj   +1 more source