Results 1 to 10 of about 8,691 (144)

X-ray Absorption Fine Structure (XAFS) Analysis of Titanium-implanted Soft Tissue

Dental Materials Journal, 2007
Tissues contacting Ti dental implants were subjected to X-ray absorption fine structure (XAFS) analysis to examine the chemical state of Ti transferred from the placed implant into the surrounding tissue. Nine tissues that contacted pure Ti cover screws for several months were excised in a second surgery whereby healing abutments were set.
Kiyotaka Asakura, Atsuro Yokoyama, Tsukasa Akasaka   +2 more
exaly   +4 more sources

Measurements of photon interference X-ray absorption fine structure (πXAFS)

Journal of Synchrotron Radiation, 2001
Experimental data are presented which demonstrate the existence of a fine structure in extended X-ray absorption spectra due to interference effects in the initial photon state (πXAFS). Interference occurs between the incident electromagnetic wave and its coherently scattered waves from neighboring atoms.
L Tröger, Yoshinori Nishino, G Materlik   +2 more
exaly   +4 more sources

X-ray-induced synthesis of gold nanoparticles and in situ XAFS measurements

Fushe yanjiu yu fushe gongyi xuebao, 2021
X-ray irradiation offers a promising avenue to expedite the green synthesis of nanoparticles with high efficiency, simplicity, and environmental friendliness.
FAN Jinsong, CHEN Jing, LI Jiang, ZHU Ying, WANG Lihua   +4 more
doaj   +1 more source

Detection the structure-activity relationship of  platinum-bismuth catalyst in methane oxidation by X-ray adsorption fine structure

He jishu, 2021
Background060102PurposeThis study aims to detect the interaction between platinum (Pt) and bismuth (Bi) species and their "structure-activity" relationship in methane oxidation through X-ray absorption fine structure (XAFS) technology.MethodsFirst of all,
NAN Bing, HUANG Yuying, LI Lina
doaj   +1 more source

A polycrystalline diamond micro-detector for X-ray absorption fine-structure measurements

Journal of Synchrotron Radiation, 2022
The microminiaturization of detectors used to record the intensity of X-ray beams is very favorable for combined X-ray experimental techniques. In this paper, chemical-vapor-deposited (CVD) polycrystalline diamond film was used to fabricate a micro ...
Lei Yao, Yunpeng Liu, Bingjie Wang, Lixiong Qian, Xueqing Xing, Guang Mo, Zhongjun Chen, Zhonghua Wu   +7 more
doaj   +1 more source

Anomalous Behavior in the Atomic Structure of Nb₃Sn under High Pressure

Crystals, 2021
In the present study, the local atomic structure of a Nb3Sn superconductor sample has been probed by X-ray absorption fine structure (XAFS) as a function of hydrostatic pressure (from ambient up to 26 GPa) using a diamond anvil cell set-up.
Irene Schiesaro, Simone Anzellini, Rita Loria, Raffaella Torchio, Tiziana Spina, René Flükiger, Tetsuo Irifune, Enrico Silva, Carlo Meneghini   +8 more
doaj   +1 more source

Influence of polyethylene glycol on the physical properties of Co0.2Fe2.8O4 nanoparticles used as MRI contrast agent; synchrotron radiation Fe K-edge XAFS

Journal of Materials Research and Technology, 2021
We have synthesized and characterized the surface-modified nanoparticles (NPs) of Co0.2Fe2.8O4/x polyethylene glycol (PEG) (x = 0, 10, 20, 30, and 40%).
N.G. Imam, Mennatallah AbouHasswa, Giuliana Aquilanti, S.I. El Dek, N. Okasha, Ahmed A.G. Al Shahawy   +5 more
doaj   +1 more source

XAFS Analysis of Sulfuric Acid Solution Related to the Effect of Bi in Suppressing the Disproportionation Reaction of Mn3+ in Mn/Ti Redox Flow Cells

Electrochemistry, 2023
In sulfuric acid (H2SO4) aqueous solutions containing manganese (Mn) and titanium (Ti) ions, which are used for the positive electrolyte in redox flow (RF) batteries, the addition of a small quantity of bismuth (Bi) has been found to be very effective in
Junji IIHARA, Kazuya TOKUDA, Yoshihiro SAITO   +2 more
doaj   +1 more source

Generating Mechanism of Catalytic Effect for Hydrogen Absorption/Desorption Reactions in NaAlH₄–TiCl₃

Applied Sciences, 2021
The hydrogen desorption and absorption reactions of the complex metal hydride NaAlH4 are disproportionation processes, and the kinetics can be improved by adding a few mol% of Ti compounds, although the catalytic mechanism, including the location and ...
Kazutaka Ikeda, Fumika Fujisaki, Toshiya Otomo, Hidetoshi Ohshita, Takashi Honda, Toru Kawamata, Hiroshi Arima, Kazumasa Sugiyama, Hitoshi Abe, Hyunjeong Kim, Kouji Sakaki, Yumiko Nakamura, Akihiko Machida, Toyoto Sato, Shigeyuki Takagi, Shin-ichi Orimo   +15 more
doaj   +1 more source

X-ray Absorption Fine Structure (XAFS) Studies of Oxide Glasses—A 45-Year Overview [PDF]

Materials, 2018
X-ray Absorption Fine Structure (XAFS) spectroscopy has been widely used to characterize the short-range order of glassy materials since the theoretical basis was established 45 years ago. Soon after the technique became accessible, mainly due to the existence of Synchrotron laboratories, a wide range of glassy materials was characterized.
Valmor Mastelaro, Edgar Zanotto
openaire   +2 more sources