{"title":"EPR表征SCR催化剂对NO(或NH3) +O2的吸附","authors":"Du Yun-gui, Liang Yun-tao, Zhong Qin","doi":"10.1109/CDCIEM.2011.492","DOIUrl":null,"url":null,"abstract":"The adsorption of reactants over the commerciallized SCR catalyst suface was investigated by EPR, as well as the influence of H2O and SO2. The results showed that the V4+ over the catalyst could be oxidized under NO + O2 atmosphere, andNH3 was adsorbed on Brönsted acid sites. The amounts of V4+and super oxide ions were promoted at the presence of H2O andSO2 after adsorption. However, the intensity of Fe3+ decreased when H2O and SO2 were present, indicating the favorable effect of Fe3+ for anti-poisoning.","PeriodicalId":6328,"journal":{"name":"2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring","volume":"2 1","pages":"1953-1956"},"PeriodicalIF":0.0000,"publicationDate":"2011-04-11","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"0","resultStr":"{\"title\":\"Adsorption of NO (or NH3) +O2 over the Commercial SCR Catalyst Characterized by EPR\",\"authors\":\"Du Yun-gui, Liang Yun-tao, Zhong Qin\",\"doi\":\"10.1109/CDCIEM.2011.492\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"The adsorption of reactants over the commerciallized SCR catalyst suface was investigated by EPR, as well as the influence of H2O and SO2. The results showed that the V4+ over the catalyst could be oxidized under NO + O2 atmosphere, andNH3 was adsorbed on Brönsted acid sites. The amounts of V4+and super oxide ions were promoted at the presence of H2O andSO2 after adsorption. However, the intensity of Fe3+ decreased when H2O and SO2 were present, indicating the favorable effect of Fe3+ for anti-poisoning.\",\"PeriodicalId\":6328,\"journal\":{\"name\":\"2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring\",\"volume\":\"2 1\",\"pages\":\"1953-1956\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2011-04-11\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"0\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/CDCIEM.2011.492\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2011 International Conference on Computer Distributed Control and Intelligent Environmental Monitoring","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/CDCIEM.2011.492","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
Adsorption of NO (or NH3) +O2 over the Commercial SCR Catalyst Characterized by EPR
The adsorption of reactants over the commerciallized SCR catalyst suface was investigated by EPR, as well as the influence of H2O and SO2. The results showed that the V4+ over the catalyst could be oxidized under NO + O2 atmosphere, andNH3 was adsorbed on Brönsted acid sites. The amounts of V4+and super oxide ions were promoted at the presence of H2O andSO2 after adsorption. However, the intensity of Fe3+ decreased when H2O and SO2 were present, indicating the favorable effect of Fe3+ for anti-poisoning.
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