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20240905232849.0 |
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240715s2024 xx |||||o 00| ||eng c |
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|a 10.1107/S1600577524004788
|2 doi
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|a pubmed24n1524.xml
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|a (NLM)39007821
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|a eng
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1 |
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|a Kozyr, Elizaveta
|e verfasserin
|4 aut
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| 245 |
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|a In situ photodeposition of ultra-small palladium particles on TiO2
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|c 2024
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|a Text
|b txt
|2 rdacontent
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|a ƒaComputermedien
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|2 rdamedia
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|a ƒa Online-Ressource
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|a Date Revised 05.09.2024
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|a published: Print-Electronic
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|a Citation Status PubMed-not-MEDLINE
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|a open access.
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|a In situ and operando investigation of photocatalysts plays a fundamental role in understanding the processes of active phase formation and the mechanisms of catalytic reactions, which is crucial for the rational design of more efficient materials. Using a custom-made operando photocatalytic cell, an in situ procedure to follow the formation steps of Pd/TiO2 photocatalyst by synchrotron-based X-ray absorption spectroscopy (XAS) is proposed. The procedure resulted in the formation of ∼1 nm Pd particles with a much narrower size distribution and homogeneous spreading over TiO2 support compared with the samples generated in a conventional batch reactor. The combination of in situ XAS spectroscopy with high-angle annular dark-field scanning transmission electron microscopy demonstrated the formation of single-atom Pd(0) sites on TiO2 as the initial step of the photodeposition process. Palladium hydride particles were observed for all investigated samples upon exposure to formic acid solutions
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|a Journal Article
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|a Pd/TiO2
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| 650 |
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4 |
|a XANES
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|a operando spectroscopy
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|a photocatalysis
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1 |
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|a Martí-Sánchez, Sara
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Skorynina, Alina
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Arbiol, Jordi
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Escudero, Carlos
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Mino, Lorenzo
|e verfasserin
|4 aut
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| 700 |
1 |
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|a Bugaev, Aram
|e verfasserin
|4 aut
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| 773 |
0 |
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|i Enthalten in
|t Journal of synchrotron radiation
|d 1994
|g 31(2024), Pt 5 vom: 01. Sept., Seite 1071-1077
|w (DE-627)NLM09824129X
|x 1600-5775
|7 nnns
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| 773 |
1 |
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|g volume:31
|g year:2024
|g number:Pt 5
|g day:01
|g month:09
|g pages:1071-1077
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| 856 |
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|u http://dx.doi.org/10.1107/S1600577524004788
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|d 31
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|h 1071-1077
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