How\u00adev\u00ader, cat\u00ada\u00adlysts sup\u00adport\u00ade\u00addon sil\u00adi\u00adca and alu\u00admi\u00adna showed a TOR about 10 times low\u00ader than those on these three\u00adsup\u00adports. The addi\u00adtion of, for exam\u00adple, Mo, Fe, and Zn to Pd and Pt cat\u00ada\u00adlysts on alu\u00admi\u00adnasig\u00adnif\u00adi\u00adcant\u00adly increased the rate (up to a fac\u00adtor of 100), but only up to the rate on the non\u00adin\u00adter\u00adact\u00ading\u00adsup\u00adports. The rates of Pd and Pt cat\u00ada\u00adlysts sup\u00adport\u00aded on the non-inter\u00adact\u00ading\u00adsup\u00adports CeO2<\/sub>, TiO2<\/sub>, and ZrO2<\/sub> could not be fur\u00adther increased by any of these additives.For a series of Pd-Zn cat\u00ada\u00adlysts rang\u00ading from 2 to 19 wt% Zn on Al2<\/sub>O3<\/sub>, it was observed byEX\u00adAFS and DRIFTS of CO that Pd alloyed with Zn, and that the alloy exhib\u00adit\u00aded anin\u00adcreased TOR of up to 20 times as com\u00adpared to Pd on Al2<\/sub>O3<\/sub>. The pres\u00adence of zin\u00adca\u00adlu\u00admi\u00adnate was also observed. The addi\u00adtion of 2 wt% Zn to Pd cat\u00ada\u00adlysts sup\u00adport\u00aded onTiO2<\/sub>, CeO2<\/sub> and ZrO2<\/sub> did not enhance the WGS rate, although alloy\u00ading was ver\u00adi\u00adfied byEX\u00adAFS and DRIFTS of CO. The TORs of Pd on these three sup\u00adports were as high as theTOR on the best PdZn on alu\u00admi\u00adna. One expla\u00adna\u00adtion of the results is that Zn forms ana\u00adlu\u00admi\u00adnate and pre\u00advents a dele\u00adte\u00adri\u00adous inter\u00adac\u00adtion between Pd and alu\u00admi\u00adna. Zinc is thus\u00adnot a true pro\u00admot\u00ader for WGS, although it decreased the unde\u00adsir\u00adable metha\u00adna\u00adtion reac\u00adtion\u00adto below detec\u00adtion lim\u00adits. While we have found ways to mit\u00adi\u00adgate the dele\u00adte\u00adri\u00adous effect\u00adsof alu\u00admi\u00adna and sil\u00adi\u00adca on the WGS rate, we have not yet found a pro\u00admot\u00ader that will\u00adincrease the TOR sig\u00adnif\u00adi\u00adcant\u00adly for Pd or Pt on non-inter\u00adact\u00ading sup\u00adports. 2008 Spring Sym\u00adpo\u00adsium Luis Boll\u00admann, Joshua L. Ratts, W. Damion Williams, Jorge Pazmino,Jeffrey T. Miller1, W. Nicholas Del\u00adgass, Fabio H. Ribeiro School of Chem\u00adi\u00adcal Engi\u00adneer\u00ading Pur\u00addue Uni\u00adver\u00adsi\u00adty 480 Sta\u00addi\u00adum Mall Dri\u00adve West Lafayette, IN 47907\u20132100 1BP Research Cen\u00adter E-1F, 150 W.Warrenville Rd. Naperville, IL 60563 Abstract \u2014 We are attempt\u00ading to syn\u00adthe\u00adsize a cat\u00ada\u00adlyst [\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-656","post","type-post","status-publish","format-standard","hentry","category-abstracts","tag-symposium"],"_links":{"self":[{"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/656","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=656"}],"version-history":[{"count":8,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/656\/revisions"}],"predecessor-version":[{"id":2488,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/656\/revisions\/2488"}],"wp:attachment":[{"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/media?parent=656"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/categories?post=656"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/tags?post=656"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nLuis Boll\u00admann, Joshua L. Ratts, W. Damion Williams, Jorge Pazmino,Jeffrey T. Miller1, W. Nicholas Del\u00adgass, Fabio H. Ribeiro<\/strong>
\nSchool of Chem\u00adi\u00adcal Engi\u00adneer\u00ading
\nPur\u00addue Uni\u00adver\u00adsi\u00adty
\n480 Sta\u00addi\u00adum Mall Dri\u00adve
\nWest Lafayette, IN 47907\u20132100
\n
\n1<\/sup>BP Research Cen\u00adter
\nE-1F, 150 W.Warrenville Rd.
\nNaperville, IL 60563<\/em>
\n
\nAbstract<\/strong> \u2014 We are attempt\u00ading to syn\u00adthe\u00adsize a cat\u00ada\u00adlyst for the WGS reac\u00adtion that has the high\u00adturnover rate (TOR) of the Cu-based sys\u00adtem and the capa\u00adbil\u00adi\u00adty typ\u00adi\u00adcal of noble met\u00adal\u00adsys\u00adtems to recov\u00ader from oper\u00ada\u00adtional upsets. The kinet\u00adic mea\u00adsure\u00adments were car\u00adried out\u00adat 300 \u00b0C, 1 bar, 6.8% CO, 22% H2<\/sub>O, 8.5% CO2<\/sub>, 37.3% H2<\/sub>, and bal\u00adance Argon. As aref\u00ader\u00adence, the TOR for a Cu based cat\u00ada\u00adlyst at these con\u00addi\u00adtions was about 2 s-1<\/sup>. Wes\u00adt\u00adud\u00adied cat\u00ada\u00adlysts based on Pd and Pt. For Pt on alu\u00admi\u00adna, par\u00adti\u00adcle size (2\u201315 nm) caused\u00adno change in the TOR, which was about 1 s-1<\/sup> for Pt on CeO2<\/sub>, TiO2<\/sub>, and ZrO2<\/sub> supports,implying that these sup\u00adports do not influ\u00adence the reac\u00adtiv\u00adi\u00adty.<\/p>\n
\n
\nSpeaker\u2019s BioBiog\u00adra\u00adphy<\/strong> \u2014 Dr. Ribeiro is Pro\u00adfes\u00adsor at the School of Chem\u00adi\u00adcal Engi\u00adneer\u00ading, Pur\u00addue\u00adU\u00adni\u00adver\u00adsi\u00adty. His research inter\u00adest is in kinet\u00adics of het\u00adero\u00adge\u00adneous cat\u00adalyt\u00adic processes.Before start\u00ading on acad\u00ade\u00admia, Dr. Ribeiro has worked in indus\u00adtry and in research using\u00admod\u00adel cat\u00ada\u00adlysts and sur\u00adface sci\u00adence tech\u00adniques.<\/p>\n","protected":false},"excerpt":{"rendered":"