Results 21 to 30 of about 3,066 (157)

High-accuracy transmission and fluorescence XAFS of zinc at 10 K, 50 K, 100 K and 150 K using the hybrid technique

Journal of Synchrotron Radiation, 2023
The most accurate measurements of the mass attenuation coefficient for metals at low temperature for the zinc K-edge from 9.5 keV to 11.5 keV at temperatures of 10 K, 50 K, 100 K and 150 K using the hybrid technique are reported.
Marcus W. John, Daniel Sier, Ruwini S. K. Ekanayake, Martin J. Schalken, Chanh Q. Tran, Bernt Johannessen, Martin D. de Jonge, Peter Kappen, Christopher T. Chantler   +8 more
doaj   +1 more source

Controllable sites and high-capacity immobilization of uranium in Nd2Zr2O7 pyrochlore

Journal of Synchrotron Radiation, 2022
As potential nuclear waste host matrices, two series of uranium-doped Nd2Zr2O7 nanoparticles were successfully synthesized using an optimized molten salt method in an air atmosphere.
Jian Sun, Jing Zhou, Zhiwei Hu, Ting-Shan Chan, Renduo Liu, Haisheng Yu, Linjuan Zhang, Jian-Qiang Wang   +7 more
doaj   +1 more source

The Kinetics of Nickel Sorption on Pyrophyllite as Monitored by X-Ray Absorption Fine Structure (XAFS) Spectroscopy [PDF]

Le Journal de Physique IV, 1997
This study investigated the effect of reaction time (minutes to months) on the surface coordination environment of Ni sorbed onto pyrophyllite using XAFS. The data suggest the appearance of multinuclear Ni complexes after a reaction time of minutes. As reaction time progresses, these multinuclear Ni complexes increased in size ((NNi-Ni = 1.4-4.5).
Scheidegger, A., Lamble, G., Sparks, D.
openaire   +1 more source

Soft X-ray beamline BL1N2 at Aichi Synchrotron Radiation Center and its industrial use

Journal of Synchrotron Radiation, 2023
BL1N2 is a soft X-ray XAFS (X-ray absorption fine structure) beamline that is well suited for industrial use. User service started in 2015. The beamline is a grazing optical system with a pre-mirror, an inlet slit, two mirrors for three gratings, an ...
Harue Sugiyama, Haruki Murase, Toyokazu Nomoto, Yoshikazu Takeda   +3 more
doaj   +1 more source

Regulation of oxygen reduction reaction performance cobalt-based nitrogen-doped carbon catalysts by vanadium

He jishu, 2021
BackgroundTransition metal nitrogen doped carbon materials are promising to replace precious metal platinum-based materials as an important electrocatalyst for oxygen reduction, and have attracted extensive attention in the research fields of energy ...
YANG Yuqi, ZHANG Guangying, SUN Fanfei, MEI Bingbao, YANG Shuai, JIANG Zheng, ZHU Zhiyuan   +6 more
doaj   +1 more source

X-Ray Absorption Fine Structure (Xafs) Spectroscopy – A Review

, 2013
X-ray absorption spectroscopy (XAS) refers to the details of how X-rays are absorbed by an atom at energies near and above the core-level binding energies of that particular atom. The absorption of X-rays on the high energy side of absorption edges does not vary monotonically in condensed matter but has a complicated behavior which extends past the ...
Abhijeet Gaur, B D Shrivastava, H L Nigam   +2 more
openaire   +2 more sources

Characterization of Elemental Composition and Valence State of Cyclone-collected Aerosol Particles Using EDXRF and XAFS at Three Sites in Japan

Asian Journal of Atmospheric Environment, 2023
The valence state and concentration of metallic pollutants are important factors contributing to the health effects of respirable particulate matter (PM); however, they have not been well studied.
Weidong Jing, Katsutomo Saito, Takuma Okamoto, Hibiki Saito, Kazuki Sugimoto, Chiharu Nishita-Hara, Keiichiro Hara, Masahiko Hayashi, Shuichi Hasegawa, Tomoaki Okuda   +9 more
doaj   +1 more source

Copper accumulation in the sequestrum of medication-related osteonecrosis of the jaw

Bone Reports, 2015
Bisphosphonates (BPs) have been widely, efficiently, and safely used for the treatment of various bone-related diseases such as osteoporosis. However, concerns about jaw osteonecrosis associated with oral treatment (medication-related osteonecrosis of ...
Tomoko Sugiyama, Motohiro Uo, Teruyasu Mizoguchi, Takahiro Wada, Daisuke Omagari, Kazuo Komiyama, Yoshiyuki Mori   +6 more
doaj   +1 more source

In situ/operando plug-flow fixed-bed cell for synchrotron PXRD and XAFS investigations at high temperature, pressure, controlled gas atmosphere and ultra-fast heating

Journal of Synchrotron Radiation
A plug-flow fixed-bed cell for synchrotron powder X-ray diffraction (PXRD) and X-ray absorption fine structure (XAFS) idoneous for the study of heterogeneous catalysts at high temperature, pressure and under gas flow is designed, constructed and ...
Benjamin Bischoff, Maged F. Bekheet, Emiliano Dal Molin, Sebastian Praetz, Birgit Kanngießer, Reinhard Schomäcker, Martin Etter, Henrik S. Jeppesen, Akhil Tayal, Aleksander Gurlo, Albert Gili   +10 more
doaj   +1 more source

Synchrotron X-ray Absorption Spectroscopy Study of Local Structure in Al-Doped BiFeO3 Powders

Nanoscale Research Letters, 2019
The Al-doped BiFeO3, i.e., BFA x O powder samples with x = 0, 0.025, 0.05, and 0.1, were prepared via the hydrothermal route. The effects of Al substitution on the structural, electrical, and optical properties of BFA x O samples were investigated. It is
Turghunjan Gholam, Li Rong Zheng, Jia Ou Wang, Hai Jie Qian, Rui Wu, Hui-Qiong Wang   +5 more
doaj   +1 more source