The Inner Shell Spectroscopy beamline at NSLS-II: a facility for in situ and operando X-ray absorption spectroscopy for materials research

Abstract

The Inner Shell Spectroscopy (ISS) beamline on the 8-ID station at the National Synchrotron Light Source II (NSLS-II), Upton, NY, USA, is a high-throughput X-ray absorption spectroscopy beamline designed for in situ, operando, and time-resolved material characterization using high monochromatic flux and scanning speed. This contribution discusses the technical specifications of the beamline in terms of optics, heat load management, monochromator motion control, and data acquisition and processing. Results of the beamline tests demonstrating the quality of the data obtainable on the instrument, possible energy scanning speeds, as well as long-term beamline stability are shown. The ability to directly control the monochromator trajectory to define the acquisition time for each spectral region is highlighted. Examples of studies performed on the beamline are presented. The paper is concluded with a brief outlook for future developments.

Biphasic Janus Particles Explain Self-Healing in Pt–Pd Diesel Oxidation Catalysts

“…Pt L III and Pd K edge XAS were conducted at the Brookhaven National Laboratory (BNL) National Synchrotron Light Source II (NSLS-II) 8-ID ISS beamline . Samples were ground into a fine powder, which was pressed into a wafer with a flat surface.…”

“…Pt L III and Pd K edge XAS were conducted at the Brookhaven National Laboratory (BNL) National Synchrotron Light Source II (NSLS-II) 8-ID ISS beamline. 39 Samples were ground into a fine powder, which was pressed into a wafer with a flat surface. The wafers were scanned "as-received" in fluorescence mode at the Pd K edge from 24,150 to 25,350 eV and at the Pt L III edge from 11,350 to 12,550 eV.…”

Elucidating a dissolution–deposition reaction mechanism by multimodal synchrotron X-ray characterization in aqueous Zn/MnO2 batteries

“…pyMCR is expanded upon in XView, a software package developed by Denis Leshchev of NSLS-II's ISS beamline (8-ID), which adds principal component analysis (PCA) and a graphical user interface (GUI) among other features. 44…”

“…pyMCR is expanded upon in XView, a software package developed by Denis Leshchev of NSLS-II's ISS beamline (8-ID), which adds principal component analysis (PCA) and a graphical user interface (GUI) among other features. 44 Using XView, MCR-ALS was applied to an in situ experimental dataset studying the material phase evolution at an MnO 2 electrode in (2 M ZnSO 4 + 0.1 M MnSO 4 ) electrolyte during battery cycling. From scanning electron microscopy (SEM) and X-ray diffraction (XRD) analysis it was clear that new Zn-Mn complex phases were forming at the electrode surface, however the exact chemical nature of these phases was uncertain.…”

Rapid Accumulation of Soil Inorganics on Plastics: Implications for Plastic Degradation and Contaminant Fate

“…Iron Kα X-ray emission-detected XANES data were collected at the Inner Shell Spectroscopy (ISS) beamline at NSLS-II. 20 Samples were loaded into sample holders and sealed in Kapton tape for analysis. The measurements were performed at room temperature.…”