scholarly journals Polysulfide driven degradation in lithium–sulfur batteries during cycling – quantitative and high time-resolution operando X-ray absorption study for dissolved polysulfides probed at both electrode sides

2021 ◽  
Author(s):  
Claudia Zech ◽  
Philipp Hönicke ◽  
Yves Kayser ◽  
Sebastian Risse ◽  
Olga Grätz ◽  
...  
Keyword(s):  
Time Resolution ◽  
High Time ◽  
High Time Resolution ◽  
Absorption Study ◽  
X Ray ◽  
Lithium Sulfur Batteries ◽  
X Ray Absorption ◽  
Lithium Sulfur

The quantitative evolution of dissolved polysulfides at both electrode sides of lithium–sulfur batteries is determined with operando X-ray spectrometry.

A high time resolution x-ray diagnostic on the Madison Symmetric Torus

2015 ◽  
Vol 86 (7) ◽  
pp. 073512 ◽  
Author(s):  
Ami M. DuBois ◽  
John David Lee ◽  
Abdulgadar F. Almagri
Keyword(s):  
Time Resolution ◽  
High Time ◽  
High Time Resolution ◽  
X Ray ◽  
Madison Symmetric Torus

scholarly journals X-ray Absorption Spectra of Dissolved Polysulfides in Lithium–Sulfur Batteries from First-Principles

2014 ◽  
Vol 5 (9) ◽  
pp. 1547-1551 ◽  
Author(s):  
Tod A. Pascal ◽  
Kevin H. Wujcik ◽  
Juan Velasco-Velez ◽  
Chenghao Wu ◽  
Alexander A. Teran ◽  
...  
Keyword(s):  
Absorption Spectra ◽  
First Principles ◽  
X Ray ◽  
Lithium Sulfur Batteries ◽  
X Ray Absorption ◽  
Lithium Sulfur

scholarly journals Exploring reaction dynamics in lithium–sulfur batteries by time-resolved operando sulfur K-edge X-ray absorption spectroscopy

2019 ◽  
Vol 55 (34) ◽  
pp. 4993-4996 ◽  
Author(s):  
Enyue Zhao ◽  
Junyang Wang ◽  
Feng Li ◽  
Zheng Jiang ◽  
Xiao-Qing Yang ◽  
...  
Keyword(s):  
Absorption Spectroscopy ◽  
Reaction Dynamics ◽  
Conversion Process ◽  
Time Resolved ◽  
X Ray ◽  
Lithium Sulfur Batteries ◽  
X Ray Absorption ◽  
Sulfur Electrode ◽  
Lithium Sulfur

The multistep kinetic-determining conversion process of a sulfur electrode is directly revealed through time-resolved operando X-ray absorption spectroscopy.

Temporal correlation between impulsive hard X-ray and UV bursts in flares observed with high time resolution

Solar Physics ◽  
1987 ◽  
Vol 113 (1-2) ◽  
pp. 301-302 ◽  
Author(s):  
C. C. Cheng ◽  
L. E. Orwig ◽  
E. Tandberg-Hanssen
Keyword(s):  
Time Resolution ◽  
Temporal Correlation ◽  
High Time ◽  
High Time Resolution ◽  
X Ray

Temporal correlations between impulsive ultraviolet and hard X-ray bursts in solar flares observed with high time resolution

1988 ◽  
Vol 330 ◽  
pp. 480 ◽  
Author(s):  
Chung-Chieh Cheng ◽  
K. Vanderveen ◽  
L. E. Orwig ◽  
E. Tandberg-Hanssen
Keyword(s):  
Time Resolution ◽  
Solar Flares ◽  
High Time ◽  
High Time Resolution ◽  
X Ray ◽  
Temporal Correlations

scholarly journals Field and laboratory evaluation of a high time resolution x-ray fluorescence instrument for determining the elemental composition of ambient aerosols

2018 ◽  
Vol 11 (6) ◽  
pp. 3541-3557 ◽  
Author(s):  
Anja H. Tremper ◽  
Anna Font ◽  
Max Priestman ◽  
Samera H. Hamad ◽  
Tsai-Chia Chung ◽  
...  
Keyword(s):  
Mass Spectrometry ◽  
Time Resolution ◽  
High Time ◽  
Laboratory Evaluation ◽  
High Time Resolution ◽  
X Ray ◽  
Aerosol Mass ◽  
Aerosol Mass Spectrometry ◽  
Icp Ms ◽  
Median Slope

Abstract. Measuring the chemical composition of airborne particulate matter (PM) can provide valuable information on the concentration of regulated toxic metals, support modelling approaches for source detection and assist in the identification and validation of abatement techniques. Undertaking these at a high time resolution (1 h or less) enables receptor modelling techniques to be more robustly linked to emission processes. This study describes a comprehensive laboratory and field evaluation of a high time resolution x-ray fluorescence (XRF) instrument (CES XACT 625) for a range of elements (As, Ba, Ca, Cd, Ce, Cl, Cr, Cu, Fe, K, Mn, Mo, Ni, Pb, Pt, S, Sb, Se, Si, Sr, Ti, V and Zn) against alternative techniques: high time resolution mass measurements, high time resolution ion chromatography, aerosol mass spectrometry, and established filter-based, laboratory analysis using inductively coupled plasma mass spectrometry (ICP-MS). Laboratory evaluation was carried out using a novel mass-based calibration technique to independently assess the accuracy of the XRF against laboratory generated aerosols, which resulted in slopes that were not significantly different from unity. This demonstrated that generated particles can serve as an alternative calibration method for this instrument.The XACT was evaluated in three contrasting field deployments; a heavily trafficked roadside site (PM10 and PM2.5), an industrial location downwind of a nickel refinery (PM10) and an urban background location influenced by nearby industries and motorways (PM10). The XRF technique agreed well with the ICP-MS measurements of daily filter samples in all cases with a median R2 of 0.93 and a median slope of 1.07 for the elements As, Ba, Ca, Cr, Cu, Fe, K, Mn, Ni, Pb, Se, Sr, Ti, V and Zn. Differences in the results were attributed to a combination of inlet location and sampling temperature, variable blank levels in filter paper and recovery rates from acid digestion. The XRF technique also agreed well with the other high time resolution measurements but showed a clear positive difference (slopes between 1.41 and 4.6), probably due to differences in the size selection methodology, volatility and water solubility of the PM in aerosol mass spectrometry (SO4) and ion chromatography (Ca, Cl, K and SO4), respectively.A novel filter analysis technique using the XACT showed promising initial results: filters analysed off-line with the XACT compared well to in situ XACT measurements with a median R2 of 0.96 and median slope of 1.07. The resulting range of slopes was comparable to slopes produced in the ICP-MS comparison. This technique provides an opportunity to use the XACT when it is not deployed in the field; thus expanding the potential use of this instrument in future studies.

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