In this talk we will describe the uti\u00adliza\u00adtion of tung\u00adsten car\u00adbides as poten\u00adtial anode elec\u00adtro\u00adcat\u00ada\u00adlysts for Direct Methanol Fuel Cells (DMFC). Cur\u00adrent\u00adly, the anode elec\u00adtro\u00adcat\u00ada\u00adlysts for DMFC are Pt and Pt\/Ru, which are dis\u00adad\u00advan\u00adta\u00adgeous in terms of the pro\u00adhib\u00adi\u00adtive\u00adly high costs and their sus\u00adcep\u00adti\u00adbil\u00adi\u00adty to be poi\u00adsoned by CO. We will describe how to con\u00adtrol the decom\u00adpo\u00adsi\u00adtion path\u00adways of methanol on sin\u00adgle crys\u00adtal sur\u00adfaces of tung\u00adsten car\u00adbides under well-con\u00adtrolled ultra\u00adhigh vac\u00adu\u00adum (UHV) con\u00addi\u00adtions. We will also dis\u00adcuss the syn\u00adthe\u00adsis of phase pure tung\u00adsten car\u00adbide elec\u00adtrodes using Phys\u00adi\u00adcal Vapor Depo\u00adsi\u00adtion (PVD) to bridge the \u201cmate\u00adri\u00adals gap\u201d between sin\u00adgle crys\u00adtal sur\u00adfaces and poly\u00adcrys\u00adtalline films. We will then present our results of the elec\u00adtro\u00adchem\u00adi\u00adcal eval\u00adu\u00ada\u00adtion of the tung\u00adsten car\u00adbide elec\u00adtrodes to bridge the \u201cpres\u00adsure gap\u201d between UHV envi\u00adron\u00adment and elec\u00adtro\u00adchem\u00adi\u00adcal con\u00addi\u00adtions. We will also briefly dis\u00adcuss the ther\u00admo\u00addy\u00adnam\u00adic sta\u00adbil\u00adi\u00adty and kinet\u00adic mea\u00adsure\u00adments regard\u00ading the bimetal\u00adlic sur\u00adfaces in the pres\u00adence of oxy\u00adgen under both UHV [8] and atmos\u00adpher\u00adic [9] con\u00addi\u00adtions, which should help iden\u00adti\u00adfy active and sta\u00adble bimetal\u00adlic cath\u00adode elec\u00adtro\u00adcat\u00ada\u00adlysts in the Oxy\u00adgen Reduc\u00adtion Reac\u00adtion (ORR) in fuel cells. 2010 Spring Sym\u00adpo\u00adsium Jing\u00adguang G. Chen Cen\u00adter for Cat\u00adalyt\u00adic Sci\u00adence and Tech\u00adnol\u00ado\u00adgy Depart\u00adment of Chem\u00adi\u00adcal Engi\u00adneer\u00ading Uni\u00adver\u00adsi\u00adty of Delaware Newark, DE 19716 Abstract \u2014 Met\u00adal car\u00adbides [1\u20133] and bimetal\u00adlic alloys [4\u20137] often show nov\u00adel cat\u00adalyt\u00adic and elec\u00adtro\u00adcat\u00adalyt\u00adic prop\u00ader\u00adties. How\u00adev\u00ader, it is dif\u00adfi\u00adcult to know a pri\u00adori how the chem\u00adi\u00adcal prop\u00ader\u00adties of par\u00adtic\u00adu\u00adlar car\u00adbide and [\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-611","post","type-post","status-publish","format-standard","hentry","category-abstracts","tag-symposium"],"_links":{"self":[{"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/611","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/comments?post=611"}],"version-history":[{"count":8,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/611\/revisions"}],"predecessor-version":[{"id":2436,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/611\/revisions\/2436"}],"wp:attachment":[{"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/media?parent=611"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/categories?post=611"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/tags?post=611"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
\nJing\u00adguang G. Chen<\/strong>
\nCen\u00adter for Cat\u00adalyt\u00adic Sci\u00adence and Tech\u00adnol\u00ado\u00adgy
\nDepart\u00adment of Chem\u00adi\u00adcal Engi\u00adneer\u00ading
\nUni\u00adver\u00adsi\u00adty of Delaware
\nNewark, DE 19716<\/em>
\n
\nAbstract<\/strong> \u2014 Met\u00adal car\u00adbides [1\u20133] and bimetal\u00adlic alloys [4\u20137] often show nov\u00adel cat\u00adalyt\u00adic and elec\u00adtro\u00adcat\u00adalyt\u00adic prop\u00ader\u00adties. How\u00adev\u00ader, it is dif\u00adfi\u00adcult to know a pri\u00adori how the chem\u00adi\u00adcal prop\u00ader\u00adties of par\u00adtic\u00adu\u00adlar car\u00adbide and bimetal\u00adlic sys\u00adtems will be mod\u00adi\u00adfied rel\u00ada\u00adtive to the par\u00adent met\u00adals. In the past few years our research group has inves\u00adti\u00adgat\u00aded the nov\u00adel cat\u00adalyt\u00adic prop\u00ader\u00adties of var\u00adi\u00adous car\u00adbide and bimetal\u00adlic sys\u00adtems, using a com\u00adbi\u00adna\u00adtion of Den\u00adsi\u00adty Func\u00adtion\u00adal The\u00ado\u00adry (DFT) cal\u00adcu\u00adla\u00adtions, sur\u00adface sci\u00adence stud\u00adies on sin\u00adgle crys\u00adtal sur\u00adfaces, and reac\u00adtor and fuel cell stud\u00adies of sup\u00adport\u00aded cat\u00ada\u00adlysts. The gen\u00ader\u00adal trends from the exper\u00adi\u00admen\u00adtal and the\u00ado\u00adret\u00adi\u00adcal stud\u00adies of car\u00adbide [1] and bimetal\u00adlic sur\u00adfaces [4] have been sum\u00adma\u00adrized in recent reviews.<\/p>\n
\n
\n[1] Hwu &<\/span> Chen, Chem\u00adi\u00adcal Reviews<\/em>, 105<\/strong> (2005) 185\u2013212.
\n[2] Na, Zhang, Zheng, Wang &<\/span> Chen, Angew. Chem. Int. Ed.<\/em> 47<\/strong> (2008) 8510.
\n[3] Weigert, Stot\u00adtle\u00admy\u00ader, Zell\u00adner &<\/span> Chen, J. Phys. Chem. C<\/em>, 111<\/strong> (2007) 14617.
\n[4] Chen, Men\u00adning &<\/span> Zell\u00adner, Sur\u00adface Sci\u00adence Reports<\/em>, 63<\/strong> (2008) 201\u2013254.
\n[5] Hwu, Eng &<\/span> Chen, J. Am. Chem. Soc.<\/em> 124<\/strong> (2002) 702.
\n[6] Kitchin, Norskov, Barteau &<\/span> Chen, Phys. Rev. Lett.<\/em> 93<\/strong> (2004) 156801.
\n[7] Muril\u00adlo, Goda &<\/span> Chen, J. Am. Chem. Soc.<\/em> 129<\/strong> (2007) 7101.
\n[8] Men\u00adning &<\/span> Chen, J. Chem. Phys.<\/em> 130<\/strong> (2009) 174709.
\n[9] Men\u00adning &<\/span> Chen, J. Pow\u00ader Sources<\/em>, 195<\/strong> (2010) 3140.
\n
\nSpeaker\u2019s Biog\u00adra\u00adphy<\/strong> \u2014 Jing\u00adguang Chen is the Claire D. LeClaire Pro\u00adfes\u00adsor of chem\u00adi\u00adcal engi\u00adneer\u00ading. He also holds the posi\u00adtions of the Inter\u00adim Direc\u00adtor of the Uni\u00adver\u00adsi\u00adty of Delaware Ener\u00adgy Insti\u00adtute and Co-Direc\u00adtor of the Ener\u00adgy Fron\u00adtier Research Cen\u00adter at the Uni\u00adver\u00adsi\u00adty of Delaware. He received his Ph.D. degree from the Uni\u00adver\u00adsi\u00adty of Pitts\u00adburgh 1988. He spent one year in Ger\u00admany as a Hum\u00adboldt Post\u00addoc\u00adtor\u00adal Fel\u00adlow before start\u00ading his career at the Exxon Cor\u00adpo\u00adrate Research Lab\u00ado\u00adra\u00adto\u00adries. In 1998 he accept\u00aded a fac\u00adul\u00adty posi\u00adtion at the Uni\u00adver\u00adsi\u00adty of Delaware and served as the Direc\u00adtor of the Cen\u00adter for Cat\u00adalyt\u00adic Sci\u00adence and Tech\u00adnol\u00ado\u00adgy (CCST) from 2000\u20132007. He has 200 jour\u00adnal pub\u00adli\u00adca\u00adtions and 17 US patents. He is very active in serv\u00ading the sur\u00adface sci\u00adence and catal\u00ady\u00adsis com\u00admu\u00adni\u00adties, includ\u00ading respon\u00adsi\u00adbil\u00adi\u00adties as the Chair for the Gor\u00addon Research Con\u00adfer\u00adence on Catal\u00ady\u00adsis in 2002, the Chair of the Philadel\u00adphia Catal\u00ady\u00adsis Club in 2004, the Catal\u00ady\u00adsis Sec\u00adre\u00adtari\u00adat of the Amer\u00adi\u00adcan Chem\u00adi\u00adcal Soci\u00adety in 2007, and the Board of Direc\u00adtors for the North Amer\u00adi\u00adcan Catal\u00ady\u00adsis Soci\u00adety. He is also the co-founder and team leader of the first Syn\u00adchro\u00adtron Catal\u00ady\u00adsis Con\u00adsor\u00adtium in the US for the Depart\u00adment of Ener\u00adgy.<\/p>\n","protected":false},"excerpt":{"rendered":"