For Publishers
DiscoveryMetadataPeer reviewHostingPublishing
For Researchers
JoinPublishReviewCollect
Register
Blog
About
Search
Advanced search
My ScienceOpen
Search
For Publishers
For Researchers
Blog
About
18
views
69
references
 Top references
cited by
8
    
0 reviews
 Review
0
comments
 Comment
0
recommends
+1 Recommend
0 collections
    0
    shares
      145
      similar
       All similar
      • Record: found
      • Abstract: found
      • Article: not found

      Simultaneous NO x and Particulate Matter Removal from Diesel Exhaust by Hierarchical Fe-Doped Ce–Zr Oxide

      research-article

      Read this article at

      ScienceOpenPublisherPMC
      Bookmark
          There is no author summary for this article yet. Authors can add summaries to their articles on ScienceOpen to make them more accessible to a non-specialist audience.

          Abstract

          Particulate matter and NO x emissions from diesel exhaust remains one of the most pressing environmental problems. We explore the use of hierarchically ordered mixed Fe–Ce–Zr oxides for the simultaneous capture and oxidation of soot and reduction of NO x by ammonia in a single step. The optimized material can effectively trap the model soot particles in its open macroporous structure and oxidize the soot below 400 °C while completely removing NO in the 285–420 °C range. Surface characterization and DFT calculations emphasize the defective nature of Fe-doped ceria. The isolated Fe ions and associated oxygen vacancies catalyze facile NO reduction to N 2. A mechanism for the reduction of NO with NH 3 on Fe-doped ceria is proposed involving adsorbed O 2. Such adsorbed O 2 species will also contribute to the oxidation of soot.

          Related collections

          Most cited references69

          • Record: found
          • Abstract: not found
          • Article: not found

          Generalized Gradient Approximation Made Simple.

          Gary H. Perdew, Ernzerhof, M Perdew … (1997)
          Article 0 comments Cited 2062 times – based on 0 reviews     Review now
            Bookmark
            • Record: found
            • Abstract: found
            • Article: found
            Is Open Access

            A linear response approach to the calculation of the effective interaction parameters in the LDA+U method

            Stefano de Gironcoli, Matteo Cococcioni (2004)
            In this work we reexamine the LDA+U method of Anisimov and coworkers in the framework of a plane-wave pseudopotential approach. A simplified rotational-invariant formulation is adopted. The calculation of the Hubbard U entering the expression of the functional is discussed and a linear response approach is proposed that is internally consistent with the chosen definition for the occupation matrix of the relevant localized orbitals. In this way we obtain a scheme whose functionality should not depend strongly on the particular implementation of the model in ab-initio calculations. We demonstrate the accuracy of the method, computing structural and electronic properties of a few systems including transition and rare-earth correlated metals, transition metal monoxides and iron-silicate.
            Article 0 comments Cited 269 times – based on 0 reviews
            Preprint
                 Review now
              Bookmark
              • Record: found
              • Abstract: found
              • Article: not found

              Exceptional activity for methane combustion over modular Pd@CeO2 subunits on functionalized Al2O3.

              M Cargnello, J Delgado Jaén, J C Hernández Garrido … (2012)
              There is a critical need for improved methane-oxidation catalysts to both reduce emissions of methane, a greenhouse gas, and improve the performance of gas turbines. However, materials that are currently available either have low activity below 400°C or are unstable at higher temperatures. Here, we describe a supramolecular approach in which single units composed of a palladium (Pd) core and a ceria (CeO(2)) shell are preorganized in solution and then homogeneously deposited onto a modified hydrophobic alumina. Electron microscopy and other structural methods revealed that the Pd cores remained isolated even after heating the catalyst to 850°C. Enhanced metal-support interactions led to exceptionally high methane oxidation, with complete conversion below 400°C and outstanding thermal stability under demanding conditions.
              Article 0 comments Cited 185 times – based on 0 reviews     Review now
                Bookmark
                All references

                Author and article information

                Journal
                Journal ID (nlm-ta): ACS Catal
                Journal ID (iso-abbrev): ACS Catal
                Journal ID (publisher-id): cs
                Journal ID (coden): accacs
                Title: ACS Catalysis
                Publisher: American Chemical Society
                ISSN (Electronic): 2155-5435
                Publication date (Electronic): 26 April 2017
                Publication date (Print): 02 June 2017
                Volume: 7
                Issue: 6
                Pages: 3883-3892
                Affiliations
                [† ]State Key Laboratory of Heavy Oil Processing, China University of Petroleum , 18 Fuxue Road, Chang Ping, Beijing 102249, China
                [‡ ]Schuit Institute of Catalysis, Department of Chemical Engineering and Chemistry, Eindhoven University of Technology , P.O. Box 513, 5600 MB Eindhoven, The Netherlands
                [§ ]Institute of Catalysis for Energy and Environment, Shenyang Normal University , Shenyang 110034, China
                Author notes
                [* ]Tel: (+86) 10-89732778; e-mail: liujian@ 123456cup.edu.cn .
                [* ]Tel: (+86) 10-89732326; e-mail: zhaozhen@ 123456synu.edu.cn .
                [* ]Tel: (+31) 40-2455054; e-mail: E.J.M.Hensen@ 123456TUE.nl .
                Article
                DOI: 10.1021/acscatal.6b03387
                PMC ID: 5460666
                SO-VID: 0750db84-f291-4dfa-aa7e-788e8e30cff8
                Copyright © Copyright © 2017 American Chemical Society
                License:

                This is an open access article published under a Creative Commons Non-Commercial No Derivative Works (CC-BY-NC-ND) Attribution License, which permits copying and redistribution of the article, and creation of adaptations, all for non-commercial purposes.

                History
                Date received : 29 November 2016
                Date revision received : 22 April 2017
                Categories
                Subject: Research Article
                Custom metadata
                document-id-old-9 cs6b03387
                document-id-new-14 cs-2016-03387r
                ccc-price

                Keywords: soot oxidation,nox reduction,ceria,doping,macropores
                Data availability:
                Keywords: soot oxidation, nox reduction, ceria, doping, macropores

                Comments

                Comment on this article

                scite_

                Similar content145

                See all similar

                Cited by8

                See all cited by

                Most referenced authors3,002

                See all reference authors