Special Issue "Cerium-based Materials for Energy Conversion"

A special issue of Inorganics (ISSN 2304-6740). This special issue belongs to the section "Inorganic Solid-State Chemistry".

Deadline for manuscript submissions: closed (30 September 2017)

Special Issue Editors

Guest Editor
Prof. Dr. Ulrich F. Vogt

1. Empa, Swiss Federal Laboratories for Materials Science and Technology, Überlandstrasse 129, 8600 Dübendorf, Switzerland
2. Albert-Ludwigs-University Freiburg, Crystallography, Institute of Earth and Environmental Sciences, Hermann-Herder-Str. 5, D-79104 Freiburg i.Br., Germany
Website1 | Website2 | E-Mail
Phone: +41 58 765 4160
Interests: materials for energy conversion; CeO2 redox reactions; perovskites; power-to-gas; H2 electrolysis (SOEC, AWE)
Guest Editor
Prof. Dr. Paolo Fornasiero

1. Department of Chemical and Pharmaceutical Sciences,University of Trieste, via L. Giorgieri 1,34127 Trieste, Italy
2. INSTM and ICCOM Trieste Research Units, via L. Giorgieri 1, 34127 Trieste, Italy
Website | E-Mail
Phone: +390405583973
Fax: +39 40 558 3903
Interests: nanostructured heterogeneous catalyst; CeO2-based redox reactions; photocatalytic H2 production; solar fuels

Special Issue Information

Dear Colleagues,

Ceria (CeO2) plays a key role in many catalytic processes. Due to its excellent oxygen storage capacity (OSC), ceria and ceria-based mixed oxides are widely used for industrially-relevant applications, like three-way catalysis, catalytic oxidation in exhaust converters, hydrocarbon reforming, SOFC fuel cells, SOEC electrolysis, photocatalysis, water–gas shift reactions, or thermochemical water splitting. Doping and formation of nanocomposites and solid solutions allow to enhance the excellent redox properties of ceria, and to significantly improve its high temperature- and chemical stability. Consistently, ceria-based materials are ideal materials, even for demanding high temperature catalytic reactions.

While there is no doubt that ceria, as with any catalyst, is able to reduce the energetic requirements of the catalytic process where it is applied, particularly relevant are the direct application of ceria-based materials in the energy sector.  This is the case of ceria-based materials used as electrolytes in SOFS, as co-catalyst in anodes of SOFC or in DAFC, as active components in the formulation of reforming catalysts for hydrogen production or in thermochemical applications. Applications of ceria-based materials in photo- or photoelectrochemical processes for solar fuel production are also exponentially growing.

The goal of this Special Issue aims is to bring together the actual status of research on the use of ceria-based materials for energy-related applications in an openly-accessible way, in order to allow better communication of this topic to a wider audience. Therefore, we invite you to contribute with a paper in the above-mentioned areas and allow your research to inform and influence the next generation of scientist to keep the field as vibrant as it is today.

Prof. Dr. Ulrich F. Vogt
Prof. Dr. Paolo Fornasiero
Guest Editors

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. Inorganics is an international peer-reviewed open access quarterly 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 350 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

  • Ceria oxygen exchange mechanism
  • CeO2–y oxygen storage capacity
  • Ceria oxygen exchange mechanisms
  • ceria-based mixed oxides
  • thermochemical water splitting
  • thermochemical syngas production
  • dopand solubility limit
  • solar fuels
  • ceria based FC
  • photocatalytic water splitting

Related Special Issue

Published Papers (2 papers)

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Research

Open AccessArticle Investigation of the Thermodynamic Properties of Surface Ceria and Ceria–Zirconia Solid Solution Films Prepared by Atomic Layer Deposition on Al2O3
Inorganics 2017, 5(4), 69; doi:10.3390/inorganics5040069
Received: 29 August 2017 / Revised: 11 October 2017 / Accepted: 11 October 2017 / Published: 15 October 2017
PDF Full-text (1467 KB) | HTML Full-text | XML Full-text
Abstract
The properties of 20 wt % CeO2 and 21 wt % Ce0.5Zr0.5O2 films, deposited onto a γ-Al2O3 by Atomic Layer Deposition (ALD), were compared to bulk Ce0.5Zr0.5O2 and γ-Al
[...] Read more.
The properties of 20 wt % CeO2 and 21 wt % Ce0.5Zr0.5O2 films, deposited onto a γ-Al2O3 by Atomic Layer Deposition (ALD), were compared to bulk Ce0.5Zr0.5O2 and γ-Al2O3-supported samples on which 20 wt % CeO2 or 21 wt % CeO2–ZrO2 were deposited by impregnation. Following calcination to 1073 K, the ALD-prepared catalysts showed much lower XRD peak intensities, implying that these samples existed as thin films, rather than larger crystallites. Following the addition of 1 wt % Pd to each of the supports, the ALD-prepared samples exhibited much higher rates for CO oxidation due to better interfacial contact between the Pd and ceria-containing phases. The redox properties of the ALD samples and bulk Ce0.5Zr0.5O2 were measured by determining the oxidation state of the ceria as a function of the H2:H2O ratio using flow titration and coulometric titration. The 20 wt % CeO2 ALD film exhibited similar thermodynamics to that measured previously for a sample prepared by impregnation. However, the sample with 21 wt % Ce0.5Zr0.5O2 on γ-Al2O3 reduced at a much higher P O 2 and showed evidence for transition between the Ce0.5Zr0.5O2 and Ce0.5Zr0.5O1.75 phases. Full article
(This article belongs to the Special Issue Cerium-based Materials for Energy Conversion)
Figures

Open AccessArticle Stabilization of ZrO2 Powders via ALD of CeO2 and ZrO2
Inorganics 2017, 5(4), 65; doi:10.3390/inorganics5040065
Received: 30 August 2017 / Revised: 19 September 2017 / Accepted: 27 September 2017 / Published: 3 October 2017
PDF Full-text (2061 KB) | HTML Full-text | XML Full-text
Abstract
ZrO2 powders were modified by atomic layer deposition (ALD) with CeO2 and ZrO2, using Ce(TMHD)4 and Zr(TMHD)4 as the precursors, in order to determine the effect of ALD films on the structure, surface area, and catalytic properties
[...] Read more.
ZrO2 powders were modified by atomic layer deposition (ALD) with CeO2 and ZrO2, using Ce(TMHD)4 and Zr(TMHD)4 as the precursors, in order to determine the effect of ALD films on the structure, surface area, and catalytic properties of the ZrO2. Growth rates were measured gravimetrically and found to be 0.017 nm/cycle for CeO2 and 0.031 nm/cycle for ZrO2. The addition of 20 ALD cycles of either CeO2 or ZrO2 was found to stabilize the surface area of the ZrO2 powder following calcination to 1073 K and to suppress the tetragonal-to-monoclinic transition. Shrinkage of ZrO2 wafers was also suppressed by the ALD films. When used as a support for Pd in CO oxidation, the CeO2-modified materials significantly enhanced rates due to interactions between the Pd and the CeO2. Potential applications for modifying catalyst supports using ALD are discussed. Full article
(This article belongs to the Special Issue Cerium-based Materials for Energy Conversion)
Figures

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