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WFRF:(Kuśtrowski Piotr)
 

Search: WFRF:(Kuśtrowski Piotr) > Exploring the Origi...

LIBRIS Formathandbok  (Information om MARC21)
FältnamnIndikatorerMetadata
00003398naa a2200409 4500
001oai:DiVA.org:su-178612
003SwePub
008200312s2020 | |||||||||||000 ||eng|
024a https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-1786122 URI
024a https://doi.org/10.1021/acs.jpcc.9b098382 DOI
040 a (SwePub)su
041 a engb eng
042 9 SwePub
072 7a ref2 swepub-contenttype
072 7a art2 swepub-publicationtype
100a Ma, Zili4 aut
2451 0a Exploring the Origins of Improved Photocurrent by Acidic Treatment for Quaternary Tantalum-Based Oxynitride Photoanodes on the Example of CaTaO2N
264 c 2019-12-04
264 1b American Chemical Society (ACS),c 2020
338 a print2 rdacarrier
520 a Quaternary tantalum-based oxynitrides ATa(O,N)(3),with electronic band gaps between 1.8 and 2.4 eV, are promising materials for photochemical water-splitting. The tailoring of their surface properties is a critical aspect to obtain efficient hole extraction. We report on the origin of improved photoelectrochemical (PEC) water oxidation by means of acidic treatment for this class of compounds on the example of cubic CaTaO2N particles. We address the effect of acidic treatment by using complementary physical characterization techniques, such as X-ray photoelectron spectroscopy, electrochemical impedance spectroscopy, H-1 and N-1 solid-state nuclear magnetic resonance (NMR) spectroscopy, electron microscopy, and electronic band structure calculations at the density functional theory level. In combination with PEC measurements, solid-state NMR indicates that the restructured surface displays a meaningfully higher concentration of terminating OH groups. Subsequent deposition of a nickel borate (NiBi;) catalyst on the acid-treated surface yields a higher percentual upsurge of photocurrent in comparison to pristine CaTaO2N. Our results highlight the application of solid-state NMR spectroscopy for understanding the semiconductor-catalyst interface in photochemical devices.
650 7a NATURVETENSKAPx Kemi0 (SwePub)1042 hsv//swe
650 7a NATURAL SCIENCESx Chemical Sciences0 (SwePub)1042 hsv//eng
700a Jaworski, Aleksanderu Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)ajawo
700a George, Janine4 aut
700a Rokicinska, Anna4 aut
700a Thersleff, Thomasu Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)tther
700a Budnyak, Tetyana M.u Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)tebu2966
700a Hautier, Geoffroy4 aut
700a Pell, Andrew J.u Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)apell
700a Dronskowski, Richard4 aut
700a Kuśtrowski, Piotr4 aut
700a Slabon, Adamu Stockholms universitet,Institutionen för material- och miljökemi (MMK)4 aut0 (Swepub:su)adsl1265
710a Stockholms universitetb Institutionen för material- och miljökemi (MMK)4 org
773t The Journal of Physical Chemistry Cd : American Chemical Society (ACS)g 124:1, s. 152-160q 124:1<152-160x 1932-7447x 1932-7455
8564 8u https://urn.kb.se/resolve?urn=urn:nbn:se:su:diva-178612
8564 8u https://doi.org/10.1021/acs.jpcc.9b09838

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