\nFabio H. Ribeiro<\/strong>*1<\/span>, W. Nicholas Del\u00adgass1<\/span>, William F. Schnei\u00adder2<\/span>, Jef\u00adfrey T. Miller3<\/span>, Alek\u00adsey Yez\u00aderets4<\/span>, Truno\u00adjoyo Anggara2<\/span>, Christo\u00adpher Paoluc\u00adci2<\/span>, Shane A. Bates1<\/span>, Anuj Ver\u00adma1<\/span>, and Atish Parekh1<\/span>
\n1<\/span>School of Chem\u00adi\u00adcal Engi\u00adneer\u00ading, Pur\u00addue Uni\u00adver\u00adsi\u00adty, West Lafayette, Indi\u00adana 47907 (USA)
\n2<\/span>Chem\u00adi\u00adcal and Bio\u00admol\u00ade\u00adc\u00adu\u00adlar Engi\u00adneer\u00ading, Uni\u00adver\u00adsi\u00adty of Notre Dame, Notre Dame, Indi\u00adana
\n46556 (USA)
\n3<\/span>Argonne Nation\u00adal Lab\u00ado\u00adra\u00adto\u00adry, Darien, IL 60439 (USA)
\n4<\/span>Cum\u00admins Inc., Colum\u00adbus, IN 47202 (USA)
\n<\/em>
\n*fabio@\u200bpurdue.\u200bedu<\/a>
\n
\nAbstract<\/strong> \u2014 The Cu\/SSZ-13 cat\u00ada\u00adlyst (CHA frame\u00adwork) is pre\u00adferred for SCR appli\u00adca\u00adtions because it shows both SCR per\u00adfor\u00admance and hydrother\u00admal sta\u00adbil\u00adi\u00adty. In this work, the site require\u00adments of the Stan\u00addard SCR and NO oxi\u00adda\u00adtion reac\u00adtions have been stud\u00adied on Cu\/SSZ-13. Based on an inte\u00adgrat\u00aded exper\u00adi\u00admen\u00adtal and mod\u00adel\u00ading approach, the active site for the Stan\u00addard SCR on Cu\/SSZ-13 has been assigned to an iso\u00adlat\u00aded Cu ion locat\u00aded near the 6 mem\u00adber rings of SSZ-13, while NO oxi\u00adda\u00adtion required local Cu \u2013 O \u2013 Cu bonds in the 8 mem\u00adber cage of SSZ-13. The for\u00adma\u00adtion of local Cu \u2013 O \u2013 Cu bonds was a result of sat\u00adu\u00adra\u00adtion of the num\u00adber of favor\u00adable Al pairs near the 6 mem\u00adber ring to sta\u00adbi\u00adlize iso\u00adlat\u00aded Cu ions. The vari\u00ada\u00adtion of the NO oxi\u00adda\u00adtion and the SCR rates of reac\u00adtion with Cu\/Al ratios was thus a cat\u00adalyt\u00adic con\u00adse\u00adquence of dif\u00adfer\u00adent Cu ion con\u00adfig\u00adu\u00adra\u00adtions with\u00adin SSZ-13. The work\u00ading state of cat\u00ada\u00adlyst under SCR, more\u00adover, was exam\u00adined by Operan\u00addo X \u2013 Ray Absorp\u00adtion Spec\u00adtroscopy (XAS). Under reac\u00adtion con\u00addi\u00adtions, the Stan\u00addard SCR involved a redox mech\u00ada\u00adnism with both Cu(I) and Cu (II) species present. Fur\u00adther exper\u00adi\u00adments using operan\u00addo XAS to probe the redox cycle of Cu were car\u00adried out by remov\u00ading the oxi\u00addiz\u00ading half-reac\u00adtion, which pro\u00adduced most\u00adly the Cu(I) state, and then the reduc\u00ading half reac\u00adtion, which pro\u00adduced most\u00adly the Cu(II) state. Thus, any mech\u00ada\u00adnism of Stan\u00addard SCR has to incor\u00adpo\u00adrate a redox cycle. In sum\u00adma\u00adry, the stan\u00addard SCR on Cu-SSZ13 required iso\u00adlat\u00aded Cu ions to under\u00adgo a redox cycle near the 6 mem\u00adber ring of SSZ13.
\n
\n
![\"Fabio_H_Ribeiro\"](\"http:\/\/catalysisclubphilly.org\/awe9a91v\/uploads\/2014\/03\/Fabio_H_Ribeiro.png\")
<\/a>Biog\u00adra\u00adphy<\/strong> \u2014 Fabio H. Ribeiro is cur\u00adrent\u00adly the R. Nor\u00adris and Eleanor Shreve Pro\u00adfes\u00adsor of Chem\u00adi\u00adcal Engi\u00adneer\u00ading at the School of Chem\u00adi\u00adcal Engi\u00adneer\u00ading, Pur\u00addue Uni\u00adver\u00adsi\u00adty. He received his Ph.D. degree from Stan\u00adford Uni\u00adver\u00adsi\u00adty in 1989, held a post-doc\u00adtor\u00adal fel\u00adlow\u00adship at the Uni\u00adver\u00adsi\u00adty of Cal\u00adi\u00adfor\u00adnia \u2013 Berke\u00adley, and was on the Worces\u00adter Poly\u00adtech\u00adnic Insti\u00adtute fac\u00adul\u00adty before join\u00ading Pur\u00addue Uni\u00adver\u00adsi\u00adty in August 2003. His research inter\u00adests con\u00adsist of the kinet\u00adics of het\u00adero\u00adge\u00adneous cat\u00adalyt\u00adic reac\u00adtions and cat\u00ada\u00adlyst char\u00adac\u00adter\u00adi\u00adza\u00adtion by in situ tech\u00adniques. He was Chair for AIChE\u2019s Catal\u00ady\u00adsis and Reac\u00adtion Engi\u00adneer\u00ading Divi\u00adsion (2010) and is edi\u00adtor for Jour\u00adnal of Catal\u00ady\u00adsis.<\/p>\n","protected":false},"excerpt":{"rendered":"2014 Spring Sym\u00adpo\u00adsium Fabio H. Ribeiro*1, W. Nicholas Del\u00adgass1, William F. Schnei\u00adder2, Jef\u00adfrey T. Miller3, Alek\u00adsey Yez\u00aderets4, Truno\u00adjoyo Anggara2, Christo\u00adpher Paoluc\u00adci2, Shane A. Bates1, Anuj Ver\u00adma1, and Atish Parekh1 1School of Chem\u00adi\u00adcal Engi\u00adneer\u00ading, Pur\u00addue Uni\u00adver\u00adsi\u00adty, West Lafayette, Indi\u00adana 47907 (USA) 2Chem\u00adi\u00adcal and Bio\u00admol\u00ade\u00adc\u00adu\u00adlar Engi\u00adneer\u00ading, Uni\u00adver\u00adsi\u00adty of Notre Dame, Notre Dame, Indi\u00adana 46556 (USA) 3Argonne [\u2026]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"ngg_post_thumbnail":0,"footnotes":""},"categories":[15],"tags":[52],"class_list":["post-3906","post","type-post","status-publish","format-standard","hentry","category-abstracts","tag-symposium"],"_links":{"self":[{"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3906","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/comments?post=3906"}],"version-history":[{"count":9,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3906\/revisions"}],"predecessor-version":[{"id":3946,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3906\/revisions\/3946"}],"wp:attachment":[{"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/media?parent=3906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/categories?post=3906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/tags?post=3906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}