Results 11 to 20 of about 11,563 (263)

Design and application of an electrochemical cell for operando X-ray diffraction and absorption studies for electrocatalysts [PDF]

Journal of Synchrotron Radiation
The development of advanced catalysts for various electrochemical reactions necessitates precise characterization of their structure and dynamic evolution.
Jiajun Chen, Zhenzhong Li, Huiyan Zeng, Liting Deng, Long Gu, Chao Wang, Chunzhen Yang, Dongbai Sun   +7 more
doaj   +2 more sources

High-Speed X-Ray Imager ‘Hayaka’ and Its Application for Quick Imaging XAFS and in Coquendo 4DCT Observation [PDF]

Sensors
A lens-coupled high-speed X-ray camera, “Hayaka”, was developed for quick imaging of X-ray absorption fine structure (XAFS) and time-resolved high-speed computed tomography (CT) using synchrotron radiation (SR).
Akio Yoneyama, Midori Yasuda, Wataru Yashiro, Hiroyuki Setoyama, Satoshi Takeya, Masahide Kawamoto   +5 more
doaj   +2 more sources

In-situ XAFS measurements of amorphous Li3PO4-doped V2O5 cathode for all-solid-state thin-film Li-ion batteries [PDF]

Scientific Reports
In this study, in-situ X-ray absorption fine structure (XAFS) measurements were conducted on amorphous Li3PO4-doped V2O5 (VO-LPO) cathode in an all-solid-state thin-film lithium-ion battery to observe the behavior of Li ions during charge/discharge.
Keisuke Omosako, Takeshi Watanabe, Satoshi Ogawa, Isaku Kanno   +3 more
doaj   +2 more sources

Can laboratory-based XAFS compete with XRD and Mössbauer spectroscopy as a tool for quantitative species analysis? Critical evaluation using the example of a natural iron ore. [PDF]

PLoS ONE
While X-ray diffraction (XRD) is a commonly used method for quantification analysis using Rietveld refinement and quantitative Mössbauer spectroscopy is sporadically used primarily for iron speciation, laboratory X-ray Absorption Fine Structure ...
Sebastian Praetz, Christopher Schlesiger, Damian Alexander Motz, Stephen Klimke, Moritz Jahns, Christine Gottschalk, Lena Heinrich, Eva Maria Heppke, Wolfgang Malzer, Franz Renz, Carla Vogt, Birgit Kanngießer   +11 more
doaj   +2 more sources

Synthesis of δ-bismuth oxide stable at room temperature for use in industrial applications [PDF]

Scientific Reports
The current research reports an inexpensive and effective method of synthesising δ bismuth oxide stable at room temperature by reacting monoclinic α-Bi2O3 and 5.25% sodium hypochlorite at 100 °C.
J. Camilleri, P. Zaslansky, N. Ramanan
doaj   +2 more sources

Elucidating the Role of Alkali-Metal Cations in Nickel Oxide OER Catalysts Under Mild pH Conditions by Operando X-Ray Absorption Spectroscopy. [PDF]

ChemSusChem
Nickel oxide catalysts electrodeposited from carbonate buffer solutions containing various alkali‐metal cations (Li+, Na+, K+, Cs+) under mild pH conditions were investigated by operando X‐ray absorption fine structure (XAFS) analysis. The results reveal that although all catalysts converge to a common γ‐NiOOH active phase under OER conditions, K+ and ...
Age Y, Tsunekawa S, Sakai A, Harada K, Ishihara R, Ina T, Wang KH, Yoshida M.   +7 more
europepmc   +2 more sources

Data science assisted investigation of catalytically active copper hydrate in zeolites for direct oxidation of methane to methanol using H2O2

Scientific Reports, 2021
Dozens of Cu zeolites with MOR, FAU, BEA, FER, CHA and MFI frameworks are tested for direct oxidation of CH4 to CH3OH using H2O2 as oxidant. To investigate the active structures of the Cu zeolites, 15 structural variables, which describe the features of ...
Junya Ohyama, Airi Hirayama, Nahoko Kondou, Hiroshi Yoshida, Masato Machida, Shun Nishimura, Kenji Hirai, Itsuki Miyazato, Keisuke Takahashi   +8 more
doaj   +1 more source

Upgrade of transmission XAFS data acquisition system upgrade of Shanghai Synchrotron Radiation Facility BL14W1 beamline station

He jishu, 2022
BackgroundX-ray absorption spectroscopy (XAS) has a wide range of applications in materials science, biology, chemistry and other fields.PurposeThis study aims to improve the efficiency of transmission acquisition of synchrotron X-ray absorption fine ...
LIU Hongzhou, LI Ji, GU Songqi, SU Xiaozhi, MEI Bingbao, JIANG Zheng, LIU Zhi   +6 more
doaj   +1 more source

Integration of X-ray absorption fine structure databases for data-driven materials science

Science and Technology of Advanced Materials: Methods, 2023
With the aim of introducing data-driven science and establishing an infrastructure for making X-ray absorption fine structure (XAFS) spectra findable and reusable, we have integrated XAFS databases in Japan. This integrated database (MDR XAFS DB) enables
Masashi Ishii, Kosuke Tanabe, Asahiko Matsuda, Hironori Ofuchi, Takahiro Matsumoto, Toyonari Yaji, Yasuhiro Inada, Hiroaki Nitani, Masao Kimura, Kiyotaka Asakura   +9 more
doaj   +1 more source

XAFS analyses of molten metal fluorides [PDF]

, 2009
X-ray absorption fine structure studies of molten metal fluorides containing the materials related to nuclear engineering are intensively summarized. By using XAFS spectra data of divalent and trivalent cation metal fluorides in molten state which have ...
Adya, Ashok K., Akatsuka, Hiroshi, Matsuura, Haruaki, Okamoto, Yoshihiro, Watanabe, Sou   +4 more
core   +3 more sources