Special Issue "Experimental Determination of Molecular Properties at Crystal Surfaces under Practical Conditions"

A special issue of Crystals (ISSN 2073-4352). This special issue belongs to the section "Inorganic Crystalline Materials".

Deadline for manuscript submissions: closed (1 September 2020).

Special Issue Editor

Prof. Dr. Sven L. M. Schroeder
Website1 Website2
Guest Editor
School of Chemical and Process Engineering, University of Leeds, Woodhouse Lane, Leeds LS2 9JT, UK
Interests: local interactions; surfaces and interfaces; nucleation; reactive crystallisation; nanoparticle synthesis; hydrogen bonds; solution speciation; continuous crystallisation; manufacturing; advanced X-ray characterisation; spectroscopy; synchrotron radiation; in situ, operando and in-line monitoring

Special Issue Information

Dear Colleagues,

Several traditional surface science techniques detecting molecular surface properties have made the transition from ultra-high vacuum to operation under near-ambient pressure or even ambient pressure. These technical developments could facilitate changes in our understanding of interfacial interactions of crystalline materials, beyond the traditional surface science of inorganic systems. Studies of heterogeneous catalysis have paved the way towards dynamic and increasingly complex systems. These developments now open up surface studies of hitherto barely explored classes of materials, for example, adsorption of solvents on organc crystal surfaces or adsorption equilibria of additives on organic substrates.

We believe a Special Issue of Crystals on this topic is timely as this could facilitate interdisciplinary knowledge exchange between established, nascent and new potential surface science communities. I am therefore inviting you to submit experimental papers describing new applications of surface analysis, including the whole range of research from fundamental studies of model systems to applied research on practical systems.

Prof. Sven L. M. Schroeder
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All papers will be peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Crystals is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 1600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Surfaces
  • interfaces
  • adsorption
  • thin films
  • surface analysis
  • surface crystallography
  • surface chemistry

Published Papers (1 paper)

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Research

Open AccessArticle
Novel Sample-Stage for Combined Near Ambient Pressure X-ray Photoelectron Spectroscopy, Catalytic Characterization and Electrochemical Impedance Spectroscopy
Crystals 2020, 10(10), 947; https://doi.org/10.3390/cryst10100947 - 17 Oct 2020
Abstract
For an in-depth characterization of catalytic materials and their properties, spectroscopic in-situ (operando) investigations are indispensable. With the rapid development of advanced commercial spectroscopic equipment, it is possible to combine complementary methods in a single system. This allows for simultaneously gaining insights into [...] Read more.
For an in-depth characterization of catalytic materials and their properties, spectroscopic in-situ (operando) investigations are indispensable. With the rapid development of advanced commercial spectroscopic equipment, it is possible to combine complementary methods in a single system. This allows for simultaneously gaining insights into surface and bulk properties of functional oxides, such as defect chemistry, catalytic characteristics, electronic structure, etc., enabling a direct correlation of structure and reactivity of catalyst materials, thus facilitating effective catalyst development. Here, we present a novel sample-stage, which was specifically developed to pave the way to a lab–based combination of near ambient pressure X-ray photoelectron spectroscopy and electrochemical impedance spectroscopy with simultaneous catalytic operando measurements. This setup is designed to probe different (model) systems under conditions close to real heterogeneous catalysis, with a focus on solid oxide electrochemical cells. In a proof of concept experiment using an electrochemical model cell with the doped perovskite Nd0.6Ca0.4Fe0.9Co0.1O3-δ as working electrode, the precise control of the surface chemistry that is possible with this setup is demonstrated. The exsolution behavior of the material was studied, showing that at a lower temperature (500 °C) with lower reducing potential of the gas phase, only cobalt was exsolved, forming metallic particles on the surface of the perovskite-type oxide. Only when the temperature was increased to 600 °C and a cathodic potential was applied (−250 mV) Fe also started to be released from the perovskite lattice. Full article
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