|
|
|
|
| LEADER |
01000naa a22002652 4500 |
| 001 |
NLM289066840 |
| 003 |
DE-627 |
| 005 |
20231225061735.0 |
| 007 |
cr uuu---uuuuu |
| 008 |
231225s2018 xx |||||o 00| ||eng c |
| 024 |
7 |
|
|a 10.1021/acs.chemmater.7b02938
|2 doi
|
| 028 |
5 |
2 |
|a pubmed24n0963.xml
|
| 035 |
|
|
|a (DE-627)NLM289066840
|
| 035 |
|
|
|a (NLM)30270988
|
| 040 |
|
|
|a DE-627
|b ger
|c DE-627
|e rakwb
|
| 041 |
|
|
|a eng
|
| 100 |
1 |
|
|a Hannula, Markku
|e verfasserin
|4 aut
|
| 245 |
1 |
0 |
|a Improved Stability of Atomic Layer Deposited Amorphous TiO2 Photoelectrode Coatings by Thermally Induced Oxygen Defects
|
| 264 |
|
1 |
|c 2018
|
| 336 |
|
|
|a Text
|b txt
|2 rdacontent
|
| 337 |
|
|
|a ƒaComputermedien
|b c
|2 rdamedia
|
| 338 |
|
|
|a ƒa Online-Ressource
|b cr
|2 rdacarrier
|
| 500 |
|
|
|a Date Revised 20.11.2019
|
| 500 |
|
|
|a published: Print-Electronic
|
| 500 |
|
|
|a Citation Status PubMed-not-MEDLINE
|
| 520 |
|
|
|a Amorphous titanium dioxide (a-TiO2) combined with an electrocatalyst has shown to be a promising coating for stabilizing traditional semiconductor materials used in artificial photosynthesis for efficient photoelectrochemical solar-to-fuel energy conversion. In this study we report a detailed analysis of two methods of modifying an undoped thin film of atomic layer deposited (ALD) a-TiO2 without an electrocatalyst to affect its performance in water splitting reaction as a protective photoelectrode coating. The methods are high-temperature annealing in ultrahigh vacuum and atomic hydrogen exposure. A key feature in both methods is that they preserve the amorphous structure of the film. Special attention is paid to the changes in the molecular and electronic structure of a-TiO2 induced by these treatments. On the basis of the photoelectrochemical results, the a-TiO2 is susceptible to photocorrosion but significant improvement in stability is achieved after heat treatment in vacuum at temperatures above 500 °C. On the other hand, the hydrogen treatment does not increase the stability despite the ostensibly similar reduction of a-TiO2. The surface analysis allows us to interpret the improved stability to the thermally induced formation of O- species within a-TiO2 that are essentially electronic defects in the anionic framework
|
| 650 |
|
4 |
|a Journal Article
|
| 700 |
1 |
|
|a Ali-Löytty, Harri
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Lahtonen, Kimmo
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Sarlin, Essi
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Saari, Jesse
|e verfasserin
|4 aut
|
| 700 |
1 |
|
|a Valden, Mika
|e verfasserin
|4 aut
|
| 773 |
0 |
8 |
|i Enthalten in
|t Chemistry of materials : a publication of the American Chemical Society
|d 1998
|g 30(2018), 4 vom: 27. Feb., Seite 1199-1208
|w (DE-627)NLM098194763
|x 0897-4756
|7 nnns
|
| 773 |
1 |
8 |
|g volume:30
|g year:2018
|g number:4
|g day:27
|g month:02
|g pages:1199-1208
|
| 856 |
4 |
0 |
|u http://dx.doi.org/10.1021/acs.chemmater.7b02938
|3 Volltext
|
| 912 |
|
|
|a GBV_USEFLAG_A
|
| 912 |
|
|
|a SYSFLAG_A
|
| 912 |
|
|
|a GBV_NLM
|
| 912 |
|
|
|a GBV_ILN_11
|
| 912 |
|
|
|a GBV_ILN_350
|
| 951 |
|
|
|a AR
|
| 952 |
|
|
|d 30
|j 2018
|e 4
|b 27
|c 02
|h 1199-1208
|