Adsorption and oxidation of SO2 on the surface of TiO2 nanoparticles: the role of terminal hydroxyl and oxygen vacancy–Ti3+ states

2020 ◽  
Vol 22 (18) ◽  
pp. 9943-9953
Author(s):  
Bing Wang ◽  
Xue Li ◽  
Shanshan Liang ◽  
Runxuan Chu ◽  
Dan Zhang ◽  
...  
Keyword(s):  
High Resolution ◽  
Oxygen Vacancy ◽  
Tio2 Nanoparticles ◽  
Photoelectron Spectroscopy ◽  
Flow Chamber ◽  
Oxidation Reactions ◽  
Edge Structure ◽  
X Ray ◽  
X Ray Absorption

The absorption and oxidation reactions of SO2 on TiO2 nanoparticles were investigated by using a flow chamber, synchrotron X-ray absorption near-edge structure and high resolution synchrotron X-ray photoelectron spectroscopy techniques.

Landscape of s-triazine molecule on Si(100) by a theoretical x-ray photoelectron spectroscopy and x-ray absorption near-edge structure spectra study

2018 ◽  
Vol 27 (11) ◽  
pp. 113101
Author(s):  
Jing Hu ◽  
Xiu-Neng Song ◽  
Sheng-Yu Wang ◽  
Juan Lin ◽  
Jun-Rong Zhang ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Edge Structure ◽  
X Ray ◽  
X Ray Absorption

X-ray absorption near the edge structure and X-ray photoelectron spectroscopy studies on pyrite prepared by thermally sulfurizing iron films

2009 ◽  
Vol 18 (7) ◽  
pp. 2734-2738 ◽  
Author(s):  
Zhang Hui ◽  
Liu Ying-Shu ◽  
Wang Bao-Yi ◽  
Wei Long ◽  
Kui Re-Xi ◽  
...  
Keyword(s):  
Photoelectron Spectroscopy ◽  
Iron Films ◽  
Edge Structure ◽  
X Ray ◽  
Spectroscopy Studies ◽  
X Ray Absorption

scholarly journals The nature and effects of rhodium and antimony dopants on the electronic structure of TiO2: towards design of Z-scheme photocatalysts

2016 ◽  
Vol 4 (18) ◽  
pp. 6946-6954 ◽  
Author(s):  
E. N. K. Glover ◽  
S. G. Ellington ◽  
G. Sankar ◽  
R. G. Palgrave
Keyword(s):  
Fine Structure ◽  
Photoelectron Spectroscopy ◽  
Diffuse Reflectance ◽  
Diffuse Reflectance Spectroscopy ◽  
Reflectance Spectroscopy ◽  
X Ray Diffraction ◽  
Edge Structure ◽  
X Ray ◽  
Antimony Doping ◽  
X Ray Absorption

The nature and effects of rhodium and antimony doping in TiO2 have been investigated using X-ray diffraction (XRD), X-ray Photoelectron Spectroscopy (XPS), Extended X-ray Absorption Fine Structure (EXAFS), X-ray Absorption Near Edge Structure (XANES) and diffuse reflectance spectroscopy.

scholarly journals AP-XPS beamline, a platform for operando science at Pohang Accelerator Laboratory

2020 ◽  
Vol 27 (2) ◽  
pp. 507-514
Author(s):  
Geonhwa Kim ◽  
Youngseok Yu ◽  
Hojoon Lim ◽  
Beomgyun Jeong ◽  
Jouhahn Lee ◽  
...  
Keyword(s):  
High Resolution ◽  
Photoelectron Spectroscopy ◽  
Ambient Pressure ◽  
Experimental System ◽  
Photon Flux ◽  
Acceptance Angle ◽  
X Ray ◽  
Pohang Accelerator Laboratory ◽  
And Performance ◽  
X Ray Absorption

Beamline 8A (BL 8A) is an undulator-based soft X-ray beamline at Pohang Accelerator Laboratory. This beamline is aimed at high-resolution ambient-pressure X-ray photoelectron spectroscopy (AP-XPS), soft X-ray absorption spectroscopy (soft-XAS) and scanning photoemission microscopy (SPEM) experiments. BL 8A has two branches, 8A1 SPEM and 8A2 AP-XPS, that share a plane undulator, the first mirror (M1) and the monochromator. The photon beam is switched between the two branches by changing the refocusing mirrors after the monochromator. The acceptance angle of M1 is kept glancing at 1.2°, and Pt is coated onto the mirrors to achieve high reflectance, which ensures a wide photon energy range (100–2000 eV) with high resolution at a photon flux of ∼1013 photons s−1. In this article, the main properties and performance of the beamline are reported, together with selected experiments performed on the new beamline and experimental system.

Valence State of Ru at the Mn Sites in Pr0.5Sr0.5MnO3

2003 ◽  
Vol 17 (18n20) ◽  
pp. 3745-3748 ◽  
Author(s):  
B. H. Kim ◽  
J. S. Kim ◽  
D. C. Kim ◽  
Y. W. Park ◽  
A. Maignan ◽  
...  
Keyword(s):  
Valence State ◽  
Carrier Density ◽  
Magnetic Interactions ◽  
Charge Carrier Density ◽  
Edge Structure ◽  
X Ray ◽  
Ru Doping ◽  
X Ray Absorption ◽  
Tetravalent State

Valence state of the doped Ru at the Mn sites in Pr 0.5 Sr 0.5 MnO 3 has been studied using Ru K-edge X-ray absorption near-edge structure (XANES) spectroscopy. In comparison with XANES of reference ruthenates, it is found that the Mn-site doped Ru is dominantly in tetravalent state. This result suggests that the change of charge carrier density by Ru doping is not sufficient to understand drastic enhancement of ferromagnetism observed in the transport properties of Ru-doped Pr 0.5 Sr 0.5 MnO 3. The prime role of Ru in Mn 3+– O – Mn 4+ networks is discussed in terms of the valency effect and the magnetic interactions between doped Ru and Mn ions.

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