% IMPORTANT: The following is UTF-8 encoded. This means that in the presence % of non-ASCII characters, it will not work with BibTeX 0.99 or older. % Instead, you should use an up-to-date BibTeX implementation like “bibtex8” or % “biber”. @ARTICLE{Jovanovi:390613, author = {Jovanovič, Primož and Hodnik, Nejc and Ruiz-Zepeda, Francisco and Arcon, Iztok and Jozinović, Barbara and Zorko, Milena and Bele, Marjan and Šala, Martin and Šelih, Vid Simon and Hocevar, Samo B. and Gaberscek, Miran}, title = {{E}lectrochemical {D}issolution of {I}ridium and {I}ridium {O}xide {P}ar-ticles in {A}cidic {M}edia: {T}ransmission {E}lectron {M}icroscopy, {E}lectrochemical {F}low {C}ell {C}oupled to {I}nductively {C}oupled {P}lasma {M}ass {S}pectrometry and {X}-ray {A}bsorption {S}pectros-copy {S}tudy}, journal = {Journal of the American Chemical Society}, volume = {139}, number = {36}, issn = {1520-5126}, address = {Washington, DC}, publisher = {American Chemical Society}, reportid = {PUBDB-2017-09670}, pages = {12837 – 12846}, year = {2017}, note = {© American Chemical Society}, abstract = {Iridium based particles as the most promising proton exchange membrane electrolyser electrocatalysts were investigatedby transmission electron microscopy (TEM), and by coupling of electrochemical flow cell (EFC) with online inductivelycoupled plasma mass spectrometer (ICP-MS). Additionally, a thin-film rotating disc electrode (RDE), an identical location transmissionand scanning electron microscopy (IL-TEM and IL-SEM) as well as an X-ray absorption spectroscopy (XAS) studies havebeen performed. Extremely sensitive online time-and potential-resolved electrochemical dissolution profiles revealed that iridiumparticles dissolved already well below oxygen evolution reaction (OER) potentials, presumably induced by iridium surface oxidationand reduction processes, also referred to as transient dissolution. Overall, thermally prepared rutile type IrO2 particles (T-IrO2)are substantially more stable and less active in comparison to as prepared metallic (A-Ir) and electrochemically pretreated (E-Ir)analogues. Interestingly, under OER relevant conditions E-Ir particles exhibit superior stability and activity owing to the alteredcorrosion mechanism where the formation of unstable Ir(>IV) species is hindered. Due to the enhanced and lasting OER performance,electrochemically pre-oxidized E-Ir particles may be considered as the electrocatalyst of choice for an improved low temperatureelectrochemical hydrogen production device, namely a proton exchange membrane electrolyser.}, cin = {DOOR}, ddc = {540}, cid = {I:(DE-H253)HAS-User-20120731}, pnm = {6G3 - PETRA III (POF3-622) / FS-Proposal: I-20160764 EC (I-20160764-EC) / CALIPSOplus - Convenient Access to Light Sources Open to Innovation, Science and to the World (730872)}, pid = {G:(DE-HGF)POF3-6G3 / G:(DE-H253)I-20160764-EC / G:(EU-Grant)730872}, experiment = {EXP:(DE-H253)P-P64-20150101}, typ = {PUB:(DE-HGF)16}, pubmed = {pmid:28810123}, UT = {WOS:000411043900073}, doi = {10.1021/jacs.7b08071}, url = {https://bib-pubdb1.desy.de/record/390613}, }