Results 51 to 60 of about 3,066 (157)

Hydroxyl-Group Identification Using O K-Edge XAFS in Porous Glass Fabricated by Hydrothermal Reaction and Low-Temperature Foaming

Molecules, 2019
Porous glass was prepared by the hydrothermal reaction of sodium borosilicate glass, and oxygen-ion characterization was used to identify the hydroxyl groups in its surface area.
Masanori Suzuki, Shigehiro Maruyama, Norimasa Umesaki, Toshihiro Tanaka   +3 more
doaj   +1 more source

Phase transition from fcc to bcc structure of the Cu-clusters during nanocrystallization of Fe85.2Si1B9P4Cu0.8 soft magnetic alloy

AIP Advances, 2014
A role of Cu on the nanocrystallization of an Fe85.2Si1B9P4Cu0.8 alloy was investigated by X-ray absorption fine structure (XAFS) and transmission electron microscopy (TEM). The Cu K-edge XAFS results show that local structure around Cu is disordered for
Masahiko Nishijima, Makoto Matsuura, Kana Takenaka, Akira Takeuchi, Hironori Ofuchi, Akihiro Makino   +5 more
doaj   +1 more source

Fastosh: a software for the treatment of XAFS datasets of environmental relevance or acquired in operando conditions

Journal of Synchrotron Radiation
Fastosh is a freeware dedicated to the treatment of X-ray absorption fine-structure (XAFS) spectroscopy data. The program features functions that are particularly suitable for geochemical and environmental applications and treatment of XAFS datasets ...
Gautier Landrot, Emiliano Fonda
doaj   +1 more source

In situ photothermal catalytic cell for X-ray absorption fine structure spectroscopy measurement

Materials Today Catalysis
The burgeoning field of photothermal catalysis has garnered increasing interest due to the synergistic effects of light and thermal activation. Understanding the intrinsic reaction dynamics and structural evolution during the photothermal catalytic ...
Bingbao Mei, Di Shen, Yao Wei, Jingyuan Ma, Fanfei Sun   +4 more
doaj   +1 more source

Recent advances in battery characterization using in situ XAFS, SAXS, XRD, and their combining techniques: From single scale to multiscale structure detection

Exploration
Revealing and clarifying the chemical reaction processes and mechanisms inside the batteries will bring a great help to the controllable preparation and performance modulation of batteries.
Weidong Cheng, Mengyuan Zhao, Yuecheng Lai, Xin Wang, Huanyan Liu, Peng Xiao, Guang Mo, Bin Liu, Yunpeng Liu   +8 more
doaj   +1 more source

Uranium Mineral Transport in the Peña Blanca Desert: Dissolution or Fragmentation? Simulation in Sediment Column Systems

Applied Sciences
The Sierra Peña Blanca (SPB) region in Chihuahua, Mexico contains a significant uranium deposit representing about 40% of the country’s reserves. Common uranium minerals in this area include uranophane, schoepite, and weeksite/boltwoodite, with several ...
Victoria Pérez-Reyes, Rocio M. Cabral-Lares, Jesús G. Canche-Tello, Marusia Rentería-Villalobos, Guillermo González-Sánchez, Blanca P. Carmona-Lara, Cristina Hernández-Herrera, Fabián Faudoa-Gómez, Yair Rodríguez-Guerra, Gregorio Vázquez-Olvera, Jorge Carrillo-Flores, Ignacio A. Reyes-Cortés, Daniel Hernández-Cruz, René Loredo-Portales, María E. Montero-Cabrera   +14 more
doaj   +1 more source

X-ray absorption fine structure (XAFS) studies of copper compounds and complexes of biological significance

, 2014
In the present thesis, the X-ray absorption fine structure (XAFS) spectroscopy has been used to study copper compounds and complexes. Studieshave been done using both EXAFS and XANES spectroscopies. Basically, following two types of studies have been made.
openaire   +1 more source

Effect of Cu incorporation in silicate and modified borate bioglass materials for health applications: insights from synchrotron-based x-ray absorption spectroscopy

Discover Materials
This contribution investigates the effect of variable copper incorporation (x = 0.2, 1.0, 2.0, and 4.0) in silicate (45 SiO2, 24.5 CaO, 24.5 Na2O, 6P2O5 wt%) and modified borate (45 B2O3, 24.5 CaO, 24.5 Na2O, 6P2O5 wt%) bioglass materials to be used for ...
N. G. Imam, Messaoud Harfouche, A. M. Abdelghany, Jan Ingo Flege   +3 more
doaj   +1 more source

Design and development of fluorescence gas detector for X-ray absorption fine structure

He jishu
BackgroundThe gas ionization chamber is a kind of intensity monitoring detector widely used in Synchrotron Radiation Facility. Lytle detector is often used to measure the fluorescence signal from the element of interest in the fluorescent mode XAFS (X ...
CHEN Yu, WANG Jiandong, PU Shijie, GAO Qian, GAN Tao, HUANG Yuying, ZHANG Shuo, LI Jiong   +7 more
doaj   +1 more source

Interfacial electronic modulation by single-atom metals in nitrogen-doped carbon on Co3O4 for acidic oxygen evolution

Nano Research Energy
Non-precious metal-based catalysts for the acidic oxygen evolution reaction (OER) offer great potential due to their continuously improving performance, earth abundance and low cost.
Zhiyi Sun, Chen Li, Zhiwei Zhao, Kun Zheng, Zhuo Chen   +4 more
doaj   +1 more source