The control of valence state: How V/TiO2 catalyst is hindering the deactivation using the mechanochemical method
DC Field | Value | Language |
---|---|---|
dc.contributor.author | Seo, P.-W. | - |
dc.contributor.author | Lee, J.-Y. | - |
dc.contributor.author | Shim, K.-S. | - |
dc.contributor.author | Hong, S.-H. | - |
dc.contributor.author | Hong, S.-C. | - |
dc.contributor.author | Hong, S.-I. | - |
dc.date.accessioned | 2021-09-09T00:25:17Z | - |
dc.date.available | 2021-09-09T00:25:17Z | - |
dc.date.created | 2021-06-17 | - |
dc.date.issued | 2009 | - |
dc.identifier.issn | 0304-3894 | - |
dc.identifier.uri | https://scholar.korea.ac.kr/handle/2021.sw.korea/121892 | - |
dc.description.abstract | Various experiments were conducted to improve durability against SO2 by impregnating the same amount of vanadium in TiO2 which had the various physical properties. According to those catalysts, the degree of deactivation by SO2 had various results, and it was found that the production of unreacted NH3 in selective catalytic reduction reaction should be low. Based on X-ray photoelectron spectroscopy analysis, O2 on-off test, O2 reoxidation test and H2-temperature programmed reduction experiment, the redox capacity of catalyst was improved due to increasing of non-stoichiometric compounds. Such a non-stoichiometric oxide and redox capacity of catalyst can be enhanced by the ball-milling process, and the production of ammonium sulfate salt can be more easily inhibited by the superior oxidation-reduction capacity of catalyst. We found that this result is caused by producing and increasing of Vx+ (x ≤ 4), Tiy+ (y ≤ 3) which are non-stoichiometric chemical species of catalyst. | - |
dc.language | English | - |
dc.language.iso | en | - |
dc.subject | Ammonium sulfates | - |
dc.subject | Ball-milling process | - |
dc.subject | Chemical species | - |
dc.subject | Deactivation | - |
dc.subject | Mechanochemical method | - |
dc.subject | Non-stoichiometric | - |
dc.subject | Non-stoichiometric compounds | - |
dc.subject | Re oxidations | - |
dc.subject | Reduction capacities | - |
dc.subject | Selective catalytic reduction reactions | - |
dc.subject | Temperature-programmed reductions | - |
dc.subject | Valence state | - |
dc.subject | X-ray photoelectron spectroscopies | - |
dc.subject | Ammonium compounds | - |
dc.subject | Ball milling | - |
dc.subject | Milling (machining) | - |
dc.subject | Selective catalytic reduction | - |
dc.subject | Transition metals | - |
dc.subject | X ray photoelectron spectroscopy | - |
dc.subject | Catalyst deactivation | - |
dc.subject | ammonia | - |
dc.subject | ammonium sulfate | - |
dc.subject | sulfur dioxide | - |
dc.subject | titanium dioxide | - |
dc.subject | vanadium | - |
dc.subject | catalysis | - |
dc.subject | catalyst | - |
dc.subject | oxidation | - |
dc.subject | physical property | - |
dc.subject | reduction | - |
dc.subject | stoichiometry | - |
dc.subject | sulfate | - |
dc.subject | sulfur dioxide | - |
dc.subject | titanium | - |
dc.subject | vanadium | - |
dc.subject | X-ray spectroscopy | - |
dc.subject | article | - |
dc.subject | catalysis | - |
dc.subject | oxidation | - |
dc.subject | temperature sensitivity | - |
dc.subject | Ammonia | - |
dc.subject | Catalysis | - |
dc.subject | Oxidation-Reduction | - |
dc.subject | Sulfur Dioxide | - |
dc.subject | Titanium | - |
dc.subject | Vanadium | - |
dc.title | The control of valence state: How V/TiO2 catalyst is hindering the deactivation using the mechanochemical method | - |
dc.type | Article | - |
dc.contributor.affiliatedAuthor | Hong, S.-I. | - |
dc.identifier.doi | 10.1016/j.jhazmat.2008.09.119 | - |
dc.identifier.scopusid | 2-s2.0-64549163262 | - |
dc.identifier.bibliographicCitation | Journal of Hazardous Materials, v.165, no.1-3, pp.39 - 47 | - |
dc.relation.isPartOf | Journal of Hazardous Materials | - |
dc.citation.title | Journal of Hazardous Materials | - |
dc.citation.volume | 165 | - |
dc.citation.number | 1-3 | - |
dc.citation.startPage | 39 | - |
dc.citation.endPage | 47 | - |
dc.type.rims | ART | - |
dc.type.docType | Article | - |
dc.description.journalClass | 1 | - |
dc.description.journalRegisteredClass | scopus | - |
dc.subject.keywordPlus | Ammonium sulfates | - |
dc.subject.keywordPlus | Ball-milling process | - |
dc.subject.keywordPlus | Chemical species | - |
dc.subject.keywordPlus | Deactivation | - |
dc.subject.keywordPlus | Mechanochemical method | - |
dc.subject.keywordPlus | Non-stoichiometric | - |
dc.subject.keywordPlus | Non-stoichiometric compounds | - |
dc.subject.keywordPlus | Re oxidations | - |
dc.subject.keywordPlus | Reduction capacities | - |
dc.subject.keywordPlus | Selective catalytic reduction reactions | - |
dc.subject.keywordPlus | Temperature-programmed reductions | - |
dc.subject.keywordPlus | Valence state | - |
dc.subject.keywordPlus | X-ray photoelectron spectroscopies | - |
dc.subject.keywordPlus | Ammonium compounds | - |
dc.subject.keywordPlus | Ball milling | - |
dc.subject.keywordPlus | Milling (machining) | - |
dc.subject.keywordPlus | Selective catalytic reduction | - |
dc.subject.keywordPlus | Transition metals | - |
dc.subject.keywordPlus | X ray photoelectron spectroscopy | - |
dc.subject.keywordPlus | Catalyst deactivation | - |
dc.subject.keywordPlus | ammonia | - |
dc.subject.keywordPlus | ammonium sulfate | - |
dc.subject.keywordPlus | sulfur dioxide | - |
dc.subject.keywordPlus | titanium dioxide | - |
dc.subject.keywordPlus | vanadium | - |
dc.subject.keywordPlus | catalysis | - |
dc.subject.keywordPlus | catalyst | - |
dc.subject.keywordPlus | oxidation | - |
dc.subject.keywordPlus | physical property | - |
dc.subject.keywordPlus | reduction | - |
dc.subject.keywordPlus | stoichiometry | - |
dc.subject.keywordPlus | sulfate | - |
dc.subject.keywordPlus | sulfur dioxide | - |
dc.subject.keywordPlus | titanium | - |
dc.subject.keywordPlus | vanadium | - |
dc.subject.keywordPlus | X-ray spectroscopy | - |
dc.subject.keywordPlus | article | - |
dc.subject.keywordPlus | catalysis | - |
dc.subject.keywordPlus | oxidation | - |
dc.subject.keywordPlus | temperature sensitivity | - |
dc.subject.keywordPlus | Ammonia | - |
dc.subject.keywordPlus | Catalysis | - |
dc.subject.keywordPlus | Oxidation-Reduction | - |
dc.subject.keywordPlus | Sulfur Dioxide | - |
dc.subject.keywordPlus | Titanium | - |
dc.subject.keywordPlus | Vanadium | - |
dc.subject.keywordAuthor | Deactivation | - |
dc.subject.keywordAuthor | Mechanochemical method | - |
dc.subject.keywordAuthor | Non-stoichiometric | - |
dc.subject.keywordAuthor | Selective catalytic reduction | - |
dc.subject.keywordAuthor | Valence state | - |
Items in ScholarWorks are protected by copyright, with all rights reserved, unless otherwise indicated.
(02841) 서울특별시 성북구 안암로 14502-3290-1114
COPYRIGHT © 2021 Korea University. All Rights Reserved.
Certain data included herein are derived from the © Web of Science of Clarivate Analytics. All rights reserved.
You may not copy or re-distribute this material in whole or in part without the prior written consent of Clarivate Analytics.