Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts

Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts. Kamolphop, d, U., Taylor, S‥., Breen, b, J‥, Burch, R., Delgado, J‥, Chansai, S., Hardacre, C., Hengrasmee, S., & James, S‥ ACS Catalysis, 1(10):1257--1262, 2011.

Paper doi abstract bibtex

Low-temperature (\<200 °C) hydrocarbon selective catalytic reduction of NO x has been achieved for the first time in the absence of hydrogen using a solvent-free mechanochemically prepared Ag/Al 2O 3 catalyst. Catalysts prepared by this ball-milling method show a remarkable increase in activity for the reduction of nitrogen oxides with octane by lowering the light-off temperature by up to 150 °C compared with a state-of-the-art 2 wt % Ag/Al 2O 3 catalyst prepared by wet impregnation. The best catalyst prepared from silver oxide showed 50% NO x conversion at 240 °C and 99% at 302 °C. The increased activity is not due to an increased surface area of the support, but may be associated with a change in the defect structure of the alumina surface, leading to the formation of the small silver clusters necessary for the activation of the octane without leading to total combustion. On the other hand, since one possible role of hydrogen is to remove inhibiting species from the silver, we cannot exclude some change in the chemical properties of the silver as a result of the ball-milling treatment. © 2011 American Chemical Society.

@article{ Kamolphop20111257,
  abstract = {Low-temperature (\&lt;200 °C) hydrocarbon selective catalytic reduction of NO x has been achieved for the first time in the absence of hydrogen using a solvent-free mechanochemically prepared Ag/Al 2O 3 catalyst. Catalysts prepared by this ball-milling method show a remarkable increase in activity for the reduction of nitrogen oxides with octane by lowering the light-off temperature by up to 150 °C compared with a state-of-the-art 2 wt % Ag/Al 2O 3 catalyst prepared by wet impregnation. The best catalyst prepared from silver oxide showed 50% NO x conversion at 240 °C and 99% at 302 °C. The increased activity is not due to an increased surface area of the support, but may be associated with a change in the defect structure of the alumina surface, leading to the formation of the small silver clusters necessary for the activation of the octane without leading to total combustion. On the other hand, since one possible role of hydrogen is to remove inhibiting species from the silver, we cannot exclude some change in the chemical properties of the silver as a result of the ball-milling treatment. © 2011 American Chemical Society.},
  annote = {cited By (since 1996)3},
  author = {Kamolphop, U.a d and Taylor, S.F.R.a and Breen, J.P.a b and Burch, R.a and Delgado, J.J.c and Chansai, S.a and Hardacre, C.a and Hengrasmee, S.d and James, S.L.a},
  doi = {10.1021/cs200326m},
  issn = {21555435},
  journal = {ACS Catalysis},
  keywords = { Activated alumina; Ball milling; Catalysts; Chemical properties; Hydrocarbons; Hydrogen; Milling (machining); Nitric oxide; Nitrogen oxides; Reduction; Silver oxides; Surface structure, Selective catalytic reduction,Alumina surface; Light-off; Low temperatures; Mechano-chemistry; N-octanes; octane; Selective catalytic reduction of NO; Silver cluster; Solvent free; Surface area; Wet impregnation},
  number = {10},
  pages = {1257--1262},
  title = {{Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts}},
  url = {https://www.scopus.com/inward/record.url?eid=2-s2.0-80053913600\&partnerID=40\&md5=4201ae232ff8c2c9f7bf97619d2abaeb},
  volume = {1},
  year = {2011}
}

Downloads: 0

{"_id":{"_str":"51f639db59ced8df440005e8"},"__v":2,"authorIDs":[],"author_short":["Kamolphop","d, U.","Taylor, S‥.","Breen","b, J‥","Burch, R.","Delgado, J‥","Chansai, S.","Hardacre, C.","Hengrasmee, S.","James, S‥"],"bibbaseid":"-d-taylor--b-burch-delgado-chansai-hardacre-hengrasmee-james-lowtemperatureselectivecatalyticreductionscrofnoxwithnoctaneusingsolventfreemechanochemicallypreparedagal2o3catalysts-2011","bibdata":{"html":"<div class=\"bibbase_paper\"> \n\n\n<span class=\"bibbase_paper_titleauthoryear\">\n\t<span class=\"bibbase_paper_title\"><a name=\"Kamolphop20111257\"> </a>Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts.</span>\n\t<span class=\"bibbase_paper_author\">\nKamolphop; d, U.; Taylor, S‥.; Breen; b, J‥; Burch, R.; Delgado, J‥; Chansai, S.; Hardacre, C.; Hengrasmee, S.; and James, S‥</span>\n\t\n</span>\n\n\n\n<i>ACS Catalysis</i>,\n\n1(10):1257--1262.\n\n 2011.\n\n\n\n\n<br class=\"bibbase_paper_content\"/>\n\n<span class=\"bibbase_paper_content\">\n \n \n \n \n \n\n <a href=\"https://www.scopus.com/inward/record.url?eid=2-s2.0-80053913600\\&partnerID=40\\&md5=4201ae232ff8c2c9f7bf97619d2abaeb\"\n onclick=\"javascript:log_download('-d-taylor--b-burch-delgado-chansai-hardacre-hengrasmee-james-lowtemperatureselectivecatalyticreductionscrofnoxwithnoctaneusingsolventfreemechanochemicallypreparedagal2o3catalysts-2011', 'https://www.scopus.com/inward/record.url?eid=2-s2.0-80053913600\\&partnerID=40\\&md5=4201ae232ff8c2c9f7bf97619d2abaeb')\">\n <img src=\"http://www.bibbase.org/img/filetypes/blank.png\"\n\t alt=\"Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts [.0-80053913600\\&partnerID=40\\&md5=4201ae232ff8c2c9f7bf97619d2abaeb]\" \n\t class=\"bibbase_icon\"\n\t style=\"width: 24px; height: 24px; border: 0px; vertical-align: text-top\" ><span class=\"bibbase_icon_text\">Paper</span></a> \n  \n \n \n <a href=\"javascript:showBib('Kamolphop20111257')\"\n class=\"bibbase link\">\n \n\t\n\t\n\t\n BibTeX\n <i class=\"fa fa-caret-down\"></i></a>\n \n \n  \n <a class=\"bibbase_abstract_link bibbase link\"\n href=\"javascript:showAbstract('Kamolphop20111257')\">\n Abstract\n <i class=\"fa fa-caret-down\"></i></a>\n \n \n \n\n \n \n \n</span>\n\n<div class=\"well well-small bibbase\" id=\"bib_Kamolphop20111257\"\n style=\"display:none\">\n <pre>@article{ Kamolphop20111257,\n abstract = {Low-temperature (\\<200 °C) hydrocarbon selective catalytic reduction of NO x has been achieved for the first time in the absence of hydrogen using a solvent-free mechanochemically prepared Ag/Al 2O 3 catalyst. Catalysts prepared by this ball-milling method show a remarkable increase in activity for the reduction of nitrogen oxides with octane by lowering the light-off temperature by up to 150 °C compared with a state-of-the-art 2 wt % Ag/Al 2O 3 catalyst prepared by wet impregnation. The best catalyst prepared from silver oxide showed 50% NO x conversion at 240 °C and 99% at 302 °C. The increased activity is not due to an increased surface area of the support, but may be associated with a change in the defect structure of the alumina surface, leading to the formation of the small silver clusters necessary for the activation of the octane without leading to total combustion. On the other hand, since one possible role of hydrogen is to remove inhibiting species from the silver, we cannot exclude some change in the chemical properties of the silver as a result of the ball-milling treatment. © 2011 American Chemical Society.},\n annote = {cited By (since 1996)3},\n author = {Kamolphop, U.a d and Taylor, S.F.R.a and Breen, J.P.a b and Burch, R.a and Delgado, J.J.c and Chansai, S.a and Hardacre, C.a and Hengrasmee, S.d and James, S.L.a},\n doi = {10.1021/cs200326m},\n issn = {21555435},\n journal = {ACS Catalysis},\n keywords = { Activated alumina; Ball milling; Catalysts; Chemical properties; Hydrocarbons; Hydrogen; Milling (machining); Nitric oxide; Nitrogen oxides; Reduction; Silver oxides; Surface structure, Selective catalytic reduction,Alumina surface; Light-off; Low temperatures; Mechano-chemistry; N-octanes; octane; Selective catalytic reduction of NO; Silver cluster; Solvent free; Surface area; Wet impregnation},\n number = {10},\n pages = {1257--1262},\n title = {{Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts}},\n url = {https://www.scopus.com/inward/record.url?eid=2-s2.0-80053913600\\&partnerID=40\\&md5=4201ae232ff8c2c9f7bf97619d2abaeb},\n volume = {1},\n year = {2011}\n}</pre>\n</div>\n\n\n<div class=\"well well-small bibbase\" id=\"abstract_Kamolphop20111257\"\n style=\"display:none\">\n Low-temperature (\\<200 °C) hydrocarbon selective catalytic reduction of NO x has been achieved for the first time in the absence of hydrogen using a solvent-free mechanochemically prepared Ag/Al 2O 3 catalyst. Catalysts prepared by this ball-milling method show a remarkable increase in activity for the reduction of nitrogen oxides with octane by lowering the light-off temperature by up to 150 °C compared with a state-of-the-art 2 wt % Ag/Al 2O 3 catalyst prepared by wet impregnation. The best catalyst prepared from silver oxide showed 50% NO x conversion at 240 °C and 99% at 302 °C. The increased activity is not due to an increased surface area of the support, but may be associated with a change in the defect structure of the alumina surface, leading to the formation of the small silver clusters necessary for the activation of the octane without leading to total combustion. On the other hand, since one possible role of hydrogen is to remove inhibiting species from the silver, we cannot exclude some change in the chemical properties of the silver as a result of the ball-milling treatment. © 2011 American Chemical Society.\n</div>\n\n\n</div>\n","downloads":0,"keyword":["Activated alumina; Ball milling; Catalysts; Chemical properties; Hydrocarbons; Hydrogen; Milling (machining); Nitric oxide; Nitrogen oxides; Reduction; Silver oxides; Surface structure","Selective catalytic reduction","Alumina surface; Light-off; Low temperatures; Mechano-chemistry; N-octanes; octane; Selective catalytic reduction of NO; Silver cluster; Solvent free; Surface area; Wet impregnation"],"abstract":"Low-temperature (\\<200 °C) hydrocarbon selective catalytic reduction of NO x has been achieved for the first time in the absence of hydrogen using a solvent-free mechanochemically prepared Ag/Al 2O 3 catalyst. Catalysts prepared by this ball-milling method show a remarkable increase in activity for the reduction of nitrogen oxides with octane by lowering the light-off temperature by up to 150 °C compared with a state-of-the-art 2 wt % Ag/Al 2O 3 catalyst prepared by wet impregnation. The best catalyst prepared from silver oxide showed 50% NO x conversion at 240 °C and 99% at 302 °C. The increased activity is not due to an increased surface area of the support, but may be associated with a change in the defect structure of the alumina surface, leading to the formation of the small silver clusters necessary for the activation of the octane without leading to total combustion. On the other hand, since one possible role of hydrogen is to remove inhibiting species from the silver, we cannot exclude some change in the chemical properties of the silver as a result of the ball-milling treatment. © 2011 American Chemical Society.","annote":"cited By (since 1996)3","author":["Kamolphop","d, U.a","Taylor, S.F.R.a","Breen","b, J.P.a","Burch, R.a","Delgado, J.J.c","Chansai, S.a","Hardacre, C.a","Hengrasmee, S.d","James, S.L.a"],"author_short":["Kamolphop","d, U.","Taylor, S‥.","Breen","b, J‥","Burch, R.","Delgado, J‥","Chansai, S.","Hardacre, C.","Hengrasmee, S.","James, S‥"],"bibtex":"@article{ Kamolphop20111257,\n abstract = {Low-temperature (\\<200 °C) hydrocarbon selective catalytic reduction of NO x has been achieved for the first time in the absence of hydrogen using a solvent-free mechanochemically prepared Ag/Al 2O 3 catalyst. Catalysts prepared by this ball-milling method show a remarkable increase in activity for the reduction of nitrogen oxides with octane by lowering the light-off temperature by up to 150 °C compared with a state-of-the-art 2 wt % Ag/Al 2O 3 catalyst prepared by wet impregnation. The best catalyst prepared from silver oxide showed 50% NO x conversion at 240 °C and 99% at 302 °C. The increased activity is not due to an increased surface area of the support, but may be associated with a change in the defect structure of the alumina surface, leading to the formation of the small silver clusters necessary for the activation of the octane without leading to total combustion. On the other hand, since one possible role of hydrogen is to remove inhibiting species from the silver, we cannot exclude some change in the chemical properties of the silver as a result of the ball-milling treatment. © 2011 American Chemical Society.},\n annote = {cited By (since 1996)3},\n author = {Kamolphop, U.a d and Taylor, S.F.R.a and Breen, J.P.a b and Burch, R.a and Delgado, J.J.c and Chansai, S.a and Hardacre, C.a and Hengrasmee, S.d and James, S.L.a},\n doi = {10.1021/cs200326m},\n issn = {21555435},\n journal = {ACS Catalysis},\n keywords = { Activated alumina; Ball milling; Catalysts; Chemical properties; Hydrocarbons; Hydrogen; Milling (machining); Nitric oxide; Nitrogen oxides; Reduction; Silver oxides; Surface structure, Selective catalytic reduction,Alumina surface; Light-off; Low temperatures; Mechano-chemistry; N-octanes; octane; Selective catalytic reduction of NO; Silver cluster; Solvent free; Surface area; Wet impregnation},\n number = {10},\n pages = {1257--1262},\n title = {{Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts}},\n url = {https://www.scopus.com/inward/record.url?eid=2-s2.0-80053913600\\&partnerID=40\\&md5=4201ae232ff8c2c9f7bf97619d2abaeb},\n volume = {1},\n year = {2011}\n}","bibtype":"article","doi":"10.1021/cs200326m","id":"Kamolphop20111257","issn":"21555435","journal":"ACS Catalysis","key":"Kamolphop20111257","keywords":"Activated alumina; Ball milling; Catalysts; Chemical properties; Hydrocarbons; Hydrogen; Milling (machining); Nitric oxide; Nitrogen oxides; Reduction; Silver oxides; Surface structure, Selective catalytic reduction,Alumina surface; Light-off; Low temperatures; Mechano-chemistry; N-octanes; octane; Selective catalytic reduction of NO; Silver cluster; Solvent free; Surface area; Wet impregnation","number":"10","pages":"1257--1262","title":"Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts","type":"article","url":"https://www.scopus.com/inward/record.url?eid=2-s2.0-80053913600\\&partnerID=40\\&md5=4201ae232ff8c2c9f7bf97619d2abaeb","volume":"1","year":"2011","role":"author","urls":{"Paper":"https://www.scopus.com/inward/record.url?eid=2-s2.0-80053913600\\&partnerID=40\\&md5=4201ae232ff8c2c9f7bf97619d2abaeb"},"bibbaseid":"-d-taylor--b-burch-delgado-chansai-hardacre-hengrasmee-james-lowtemperatureselectivecatalyticreductionscrofnoxwithnoctaneusingsolventfreemechanochemicallypreparedagal2o3catalysts-2011"},"bibtype":"article","biburl":"http://www2.uca.es/dept/cmat_qinor/nanomat/People/Delgado.bib","downloads":0,"search_terms":["low","temperature","selective","catalytic","reduction","scr","octane","using","solvent","free","mechanochemically","prepared","catalysts","kamolphop","d","taylor","breen","b","burch","delgado","chansai","hardacre","hengrasmee","james"],"title":"Low-temperature selective catalytic reduction (SCR) of NO x with n-octane using solvent-free mechanochemically prepared Ag/Al 2O 3 catalysts","title_words":["low","temperature","selective","catalytic","reduction","scr","octane","using","solvent","free","mechanochemically","prepared","catalysts"],"year":2011,"dataSources":["FMdTKEbMWYtQ7jKBs"]}