Early science commissioning results of the sub-micron resolution X-ray spectroscopy beamline (SRX) in the field of materials science and engineering

Chen-Wiegart, Yu Chen Karen; Williams, Garth J.; Zhao, Chonghang; Jiang, Hua; Li, Li; Demkowicz, Michael J.; Seita, Matteo; Short, Mike; Ferry, S.; Wada, Takeshi; Kato, Hidemi; Chou, Kang Wei; Petrash, Stanislas; Catalano, Jaclyn; Yao, Yao; Murphy, Arthur; Zumbulyadis, Nicholas; Centeno, Silvia A.; Dybowski, Cecil; Thieme, Juergen

doi:10.1063/1.4961138

Cited by 19 publications

(10 citation statements)

References 16 publications

(7 reference statements)

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“…Importantly, the transmission of X-ray energies >8 keV through 100 μm Kapton foil is >90%. The submicron resolution X-ray spectroscopy beamline 5-ID at the National Synchrotron Light Source II (NSLS-II) was used to obtain the XANES spectra . The submicron capacity of this state-of-the art beamline was used to focus the beam onto different sample areas for each obtained spectrum, ensuring fresh material for each repetition of the measurement.…”

Section: Methodsmentioning

confidence: 99%

Tungstate Control of Microbial Sulfidogenesis and Souring of the Engineered Environment

Williamson

Engelbrektson

Liu

et al. 2020

Environ. Sci. Technol.

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Sulfide accumulation in oil reservoir fluids (souring) from the activity of sulfate-reducing microorganisms (SRM) is of grave concern because of the associated health and facility failure risks. Here, we present an assessment of tungstate as a selective and potent inhibitor of SRM. Dose–response inhibitor experiments were conducted with a number of SRM isolates and enrichments at 30–80 °C and an increase in the effectiveness of tungstate treatment at higher temperatures was observed. To explore mixed inhibitor treatment modes, we tested synergy or antagonism between several inhibitors with tungstate, and found synergism between WO4 2– and NO2 –, while additive effects were observed with ClO4 – and NO3 –. We also evaluated SRM inhibition by tungstate in advective upflow oil–sand-packed columns. Although 2 mM tungstate was initially sufficient to inhibit sulfidogenesis, subsequent temporal CaWO4 precipitation resulted in loss of the bioavailable inhibitor from solution and a concurrent increase in effluent sulfide. Mixing 4 mM sodium carbonate with the 2 mM tungstate was enough to promote tungstate solubility to reach inhibitory concentrations, without precipitation, and completely inhibit SRM activity. Overall, we demonstrate the effectiveness of tungstate as a potent SRM inhibitor, particularly at higher temperatures, and propose a novel carbonate–tungstate formulation for application to soured oil reservoirs.

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Section: Methodsmentioning

confidence: 99%

Tungstate Control of Microbial Sulfidogenesis and Souring of the Engineered Environment

Williamson

Engelbrektson

Liu

et al. 2020

Environ. Sci. Technol.

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“…The sample was illuminated with a monochromatic X-ray beam of 7.112 keV. Microbeam X-ray fluorescence (μ-XRF) imaging was conducted using submicron resolution X-ray spectroscopy (SRX) beamline at 5-ID, 45 National Synchrotron Light Source II, Brookhaven National Laboratory (BNL). A beam focus of ∼1 × 1 μm 2 was created by a set of Kirkpatrick−Baez focusing mirrors at the sample position.…”

Section: Methodsmentioning

confidence: 99%

Three-Dimensional Morphological and Chemical Evolution of Nanoporous Stainless Steel by Liquid Metal Dealloying

Zhao

Wada

Andrade

et al. 2017

ACS Appl. Mater. Interfaces

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Nanoporous materials, especially those fabricated by liquid metal dealloying processes, possess great potential in a wide range of applications due to their high surface area, bicontinuous structure with both open pores for transport and solid phase for conductivity or support, and low material cost. Here, we used X-ray nanotomography and X-ray fluorescence microscopy to reveal the three-dimensional (3D) morphology and elemental distribution within materials. Focusing on nanoporous stainless steel, we evaluated the 3D morphology of the dealloying front and established a quantitative processing-structure-property relationship at a later stage of dealloying. The morphological differences of samples created by liquid metal dealloying and aqueous dealloying methods were also discussed. We concluded that it is particularly important to consider the dealloying, coarsening, and densification mechanisms in influencing the performance-determining, critical 3D parameters, such as tortuosity, pore size, porosity, curvature, and interfacial shape.

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“…A horizontal mirror focuses the synchrotron beam from an undulator into a secondary source point, with a Si (111) monochromator selecting the X-ray energy. A set of fixed-curvature Kirkpatrick-Baez mirrors in the end station reimages that source onto the area of interest in the sample with ~1 μm beam spot size 30 , 31 .…”

Section: Methodsmentioning

confidence: 99%

Elemental and Molecular Segregation in Oil Paintings due to Lead Soap Degradation

Chen-Wiegart

Catalano

Williams

et al. 2017

Sci Rep

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The formation of Pb, Zn, and Cu carboxylates (soaps) has caused visible deterioration in hundreds of oil paintings dating from the 15th century to the present. Through transport phenomena not yet understood, free fatty acids in the oil binding medium migrate through the paint and react with pigments containing heavy metals to form soaps. To investigate the complex correlation among the elemental segregation, types of chemical compounds formed, and possible mechanisms of the reactions, a paint sample cross-section from a 15th century oil painting was examined by synchrotron X-ray techniques. X-ray fluorescence (XRF) microscopy, quantified with elemental correlation density distribution, showed Pb and Sn segregation in the soap-affected areas. X-ray absorption near edge structure (XANES) around the Pb-L3 absorption edge showed that Pb pigments and Pb soaps can be distinguished while micro-XANES gave further information on the chemical heterogeneity in the paint film. The advantages and limitations of these synchrotron-based techniques are discussed and compared to those of methods routinely used to analyze paint samples. The results presented set the stage for improving the information extracted from samples removed from works of art and for correlating observations in model paint samples to those in the naturally aged samples, to shed light onto the mechanism of soap formation.

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Early science commissioning results of the sub-micron resolution X-ray spectroscopy beamline (SRX) in the field of materials science and engineering

Cited by 19 publications

References 16 publications

Tungstate Control of Microbial Sulfidogenesis and Souring of the Engineered Environment

Tungstate Control of Microbial Sulfidogenesis and Souring of the Engineered Environment

Three-Dimensional Morphological and Chemical Evolution of Nanoporous Stainless Steel by Liquid Metal Dealloying

Elemental and Molecular Segregation in Oil Paintings due to Lead Soap Degradation

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