{"id":3298,"date":"2013-03-27T21:54:45","date_gmt":"2013-03-28T01:54:45","guid":{"rendered":"http:\/\/www.catalysisclubphilly.org\/?p=3298"},"modified":"2013-03-29T11:17:45","modified_gmt":"2013-03-29T15:17:45","slug":"spectroscopic-studiesf-metal-oxide-electrodes-during-water-oxidation","status":"publish","type":"post","link":"https:\/\/catalysisclubphilly.org\/awe9a91v\/meetings\/spectroscopic-studiesf-metal-oxide-electrodes-during-water-oxidation\/","title":{"rendered":"In Situ Spectroscopic Studies of Metal Oxide Electrodes During Water Oxidation"},"content":{"rendered":"

Meeting Program \u2014 April 2013<\/h3>\n

 
\nJohn Kitchin<\/strong>
\nDepart\u00adment of Chem\u00adi\u00adcal Engi\u00adneer\u00ading,
\nCarnegie Mel\u00adlon Uni\u00adver\u00adsi\u00adty
\n<\/em>
\n 
\nAbstract<\/strong> \u2014 Elec\u00adtro\u00adchem\u00adi\u00adcal water split\u00adting may be in inte\u00adgral part of future ener\u00adgy stor\u00adage strate\u00adgies by enabling ener\u00adgy stor\u00adage in chem\u00adi\u00adcal bonds. One of the pri\u00adma\u00adry sources of inef\u00adfi\u00adcien\u00adcy in the water split\u00adting reac\u00adtion is the oxy\u00adgen evo\u00adlu\u00adtion reac\u00adtion, which has high reac\u00adtion bar\u00adri\u00aders that require addi\u00adtion\u00adal applied elec\u00adtric poten\u00adtial to dri\u00adve the reac\u00adtions at prac\u00adti\u00adcal rates. The most active elec\u00adtrode mate\u00adri\u00adals in acid elec\u00adtrolytes include ruthe\u00adni\u00adum and irid\u00adi\u00adum oxides, which are expen\u00adsive but nec\u00ades\u00adsary for sta\u00adbil\u00adi\u00adty. In alka\u00adline envi\u00adron\u00adments, many base met\u00adal oxides become sta\u00adble, although they are still less active than Ru and Ir oxides. It has been known that small amounts of Fe can pro\u00admote the elec\u00adtro\u00adchem\u00adi\u00adcal activ\u00adi\u00adty of nick\u00adel oxides, mak\u00ading it almost as active as cobalt oxide. We have inves\u00adti\u00adgat\u00aded the mech\u00ada\u00adnisms behind the pro\u00admo\u00adtion using in situ Raman and syn\u00adchro\u00adtron spec\u00adtro\u00adscopies as well as ex situ char\u00adac\u00adter\u00adi\u00adza\u00adtion tech\u00adniques. Inter\u00adest\u00ading\u00adly, we found the elec\u00adtrode changes under oxy\u00adgen evo\u00adlu\u00adtion con\u00addi\u00adtions, turn\u00ading from an oxide to an oxy\u00adhy\u00addrox\u00adide phase. Fur\u00adther\u00admore, the com\u00adpo\u00adsi\u00adtion of the elec\u00adtrolyte has a sig\u00adnif\u00adi\u00adcant effect on the oxy\u00adgen evo\u00adlu\u00adtion activ\u00adi\u00adty. We will dis\u00adcuss these results and their impli\u00adca\u00adtions in find\u00ading bet\u00adter oxy\u00adgen evo\u00adlu\u00adtion elec\u00adtro\u00adcat\u00ada\u00adlysts.
\n 
\n<\/p>

\"John<\/a>

John Kitchin<\/p><\/div>Biog\u00adra\u00adphy<\/strong> \u2014 John Kitchin com\u00adplet\u00aded his B.S. in Chem\u00adistry at North Car\u00adoli\u00adna State Uni\u00adver\u00adsi\u00adty. He com\u00adplet\u00aded a M.S. in Mate\u00adri\u00adals Sci\u00adence and a PhD in Chem\u00adi\u00adcal Engi\u00adneer\u00ading at the Uni\u00adver\u00adsi\u00adty of Delaware in 2004 under the advise\u00adment of Dr. Jing\u00adguang Chen and Dr. Mark Barteau. He received an Alexan\u00adder von Hum\u00adboldt post\u00addoc\u00adtor\u00adal fel\u00adlow\u00adship and lived in Berlin, Ger\u00admany for 1 \u00bd years study\u00ading alloy seg\u00adre\u00adga\u00adtion with Karsten Reuter and Matthias Schef\u00adfler in the The\u00ado\u00adry Depart\u00adment at the Fritz Haber Insti\u00adtut. Pro\u00adfes\u00adsor Kitchin began a tenure-track fac\u00adul\u00adty posi\u00adtion in the Chem\u00adi\u00adcal Engi\u00adneer\u00ading Depart\u00adment at Carnegie Mel\u00adlon Uni\u00adver\u00adsi\u00adty in Jan\u00adu\u00adary of 2006. He is cur\u00adrent\u00adly an Asso\u00adciate Pro\u00adfes\u00adsor. At CMU, Pro\u00adfes\u00adsor Kitchin is active in a major research effort with\u00adin the Nation\u00adal Ener\u00adgy Tech\u00adnol\u00ado\u00adgy Lab\u00ado\u00adra\u00adto\u00adry Region\u00adal Uni\u00adver\u00adsi\u00adty Alliance in CO2<\/sub> cap\u00adture, chem\u00adi\u00adcal loop\u00ading and super\u00adal\u00adloy oxi\u00adda\u00adtion. Pro\u00adfes\u00adsor Kitchin also uses com\u00adpu\u00adta\u00adtion\u00adal meth\u00adods to study adsor\u00adbate-adsor\u00adbate inter\u00adac\u00adtions on tran\u00adsi\u00adtion met\u00adal sur\u00adfaces for appli\u00adca\u00adtions in catal\u00ady\u00adsis. He was award\u00aded a DOE Ear\u00adly Career award in 2010 to inves\u00adti\u00adgate mul\u00adti\u00adfunc\u00adtion\u00adal oxide elec\u00adtro\u00adcat\u00ada\u00adlysts for the oxy\u00adgen evo\u00adlu\u00adtion reac\u00adtion in water split\u00adting using exper\u00adi\u00admen\u00adtal and com\u00adpu\u00adta\u00adtion\u00adal meth\u00adods. He received a Pres\u00adi\u00adden\u00adtial Ear\u00adly Career Award for Sci\u00aden\u00adtists and Engi\u00adneers in 2011.
\n 
\nRecent Pub\u00adli\u00adca\u00adtions<\/strong>\n

    \n
  1. Sne\u00adha A. Akhade and John R. Kitchin*, \u201cEffects of strain, d-band fill\u00ading and oxi\u00adda\u00adtion state on the sur\u00adface elec\u00adtron\u00adic struc\u00adture and reac\u00adtiv\u00adi\u00adty of 3d per\u00adovskite sur\u00adface\u201d, J. Chem. Phys. 137, 084703 (2012).<\/li>\n
  2. James Lan\u00addon, Ethan Deme\u00adter, Nilay \u0130no\u011flu, Chris Ketu\u00adrakis, Israel E. Wachs, Rel\u00adja Vasi\u0107, Ana\u00adtoly I. Frenkel, John R. Kitchin, \u201cSpec\u00adtro\u00adscop\u00adic char\u00adac\u00adter\u00adi\u00adza\u00adtion of mixed Fe-Ni oxide elec\u00adtro\u00adcat\u00ada\u00adlysts for the oxy\u00adgen evo\u00adlu\u00adtion reac\u00adtion in alka\u00adline elec\u00adtrolytes\u201d, ACS Catal\u00ady\u00adsis, 2, 1793\u20131801 (2012).<\/li>\n
  3. Sne\u00adha A. Akhade and John R. Kitchin*, Effects of strain, d-band fill\u00ading and oxi\u00adda\u00adtion state on the bulk elec\u00adtron\u00adic struc\u00adture of cubic 3d per\u00adovskites, J. Chem. Phys. 135, 104702 (2011).<\/li>\n
  4. N. Inoglu, and J.R. Kitchin, Iden\u00adti\u00adfi\u00adca\u00adtion of sul\u00adfur tol\u00ader\u00adant bimetal\u00adlic sur\u00adfaces using DFT para\u00adme\u00adter\u00adized mod\u00adels and atom\u00adistic ther\u00admo\u00addy\u00adnam\u00adics, ACS Catal\u00ady\u00adsis, 1, 399\u2013407 (2011).<\/li>\n
  5. Isabela C. Man, Hai-Yan Su, Fed\u00aderi\u00adco Calle-Valle\u00adjo, Heine A. Hansen, Jos\u00e9 I. Mart\u00ednez, Nilay G. Inoglu, John Kitchin, Thomas F. Jaramil\u00adlo, Jens K. N\u00f8rskov, Jan Ross\u00admeisl, Uni\u00adver\u00adsal\u00adi\u00adty in Oxy\u00adgen Evo\u00adlu\u00adtion Elec\u00adtro-Catal\u00ady\u00adsis on Oxide Sur\u00adfaces, Chem\u00adCatChem, 3, (2011).<\/li>\n
  6. Spencer D. Miller, Nilay \u0130no\u011flu, and John R. Kitchin, Con\u00adfig\u00adu\u00adra\u00adtional cor\u00adre\u00adla\u00adtions in the cov\u00ader\u00adage depen\u00addent adsorp\u00adtion ener\u00adgies of oxy\u00adgen atoms on late tran\u00adsi\u00adtion met\u00adal fcc (111) sur\u00adfaces, J. Chem\u00adi\u00adcal Physics, 134, 104709 (2011).<\/li>\n
  7. R. Chao, J. R. Kitchin, K. Gerdes, E. M. Sabol\u00adsky, and P. A. Sal\u00advador, Prepa\u00adra\u00adtion of Meso\u00adporous La0.8<\/sub>Sr0.2<\/sub>MnO3<\/sub> Infil\u00adtrat\u00aded Coat\u00adings in Porous SOFC Cath\u00adodes Using Evap\u00ado\u00adra\u00adtion-Induced Self-Assem\u00adbly Meth\u00adods, ECS Trans\u00adac\u00adtions, 35 (1) 2387\u20132399 (2011).<\/li>\n
  8. W. Richard Ale\u00adsi Jr., McMa\u00adhan Gray, John R. Kitchin, CO2<\/sub> Adsorp\u00adtion on Sup\u00adport\u00aded Mol\u00ade\u00adc\u00adu\u00adlar Ami\u00addine Sys\u00adtems on Acti\u00advat\u00aded Car\u00adbon, Chem\u00adSusChem, 3(8), 948\u2013956 (2010) Spe\u00adcial issue on CO2<\/sub> cap\u00adture and Seques\u00adtra\u00adtion.<\/li>\n
  9. Nilay Inoglu, John R. Kitchin, Sim\u00adple mod\u00adel explain\u00ading and pre\u00addict\u00ading cov\u00ader\u00adage-depen\u00addent atom\u00adic adsorp\u00adtion ener\u00adgies on tran\u00adsi\u00adtion met\u00adal sur\u00adfaces, Phys\u00adi\u00adcal Review B, 82, 045414 (2010).<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    Meet\u00ading Pro\u00adgram \u2014 April 2013   John Kitchin Depart\u00adment of Chem\u00adi\u00adcal Engi\u00adneer\u00ading, Carnegie Mel\u00adlon Uni\u00adver\u00adsi\u00adty   Abstract \u2014 Elec\u00adtro\u00adchem\u00adi\u00adcal water split\u00adting may be in inte\u00adgral part of future ener\u00adgy stor\u00adage strate\u00adgies by enabling ener\u00adgy stor\u00adage in chem\u00adi\u00adcal bonds. One of the pri\u00adma\u00adry sources of inef\u00adfi\u00adcien\u00adcy in the water split\u00adting reac\u00adtion is the oxy\u00adgen evo\u00adlu\u00adtion reac\u00adtion, [\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":[15,13],"tags":[],"class_list":["post-3298","post","type-post","status-publish","format-standard","hentry","category-abstracts","category-meetings"],"_links":{"self":[{"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3298","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=3298"}],"version-history":[{"count":7,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3298\/revisions"}],"predecessor-version":[{"id":3354,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/posts\/3298\/revisions\/3354"}],"wp:attachment":[{"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/media?parent=3298"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/categories?post=3298"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/catalysisclubphilly.org\/awe9a91v\/wp-json\/wp\/v2\/tags?post=3298"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}