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Title: Probing rutile solid-phase crystallization of atomically mixed Mn-alloyed TiO2 coatings through XANES analysis

Journal Article · · MRS communications

Phase transformation via dopant introduction is an emerging strategy for tuning the electronic and catalytic properties of oxides. However, developing a general theory of ternary alloys and their microstructure evolution remains challenging due to the knowledge gaps in how point defects such as dopants lead to the formation of complex or metastable phases. We investigate the influence of Mn concentration and annealing temperature on the microstructure evolution of amorphous Mn-alloyed TiO2 synthesized via Atomic Layer Deposition. In conclusion, our findings reveal a new crystallization pathway resulting in a direct amorphous TiO2 to rutile transformation without an intermediate anatase phase and our multi-parameter thermal processing conditions show potential for AI-assisted data acquisition and analysis for studying complex oxide coatings.

Research Organization:
Brookhaven National Laboratory (BNL), Upton, NY (United States)
Sponsoring Organization:
USDOE Office of Science (SC), Basic Energy Sciences (BES). Scientific User Facilities (SUF); USDOE Office of Science (SC), Basic Energy Sciences (BES). Chemical Sciences, Geosciences & Biosciences Division (CSGB); USDOE Office of Energy Efficiency and Renewable Energy (EERE), Office of Sustainable Transportation. Hydrogen Fuel Cell Technologies Office (HFTO)
Grant/Contract Number:
SC0012704; SC0021953; EE0010734
OSTI ID:
2280501
Report Number(s):
BNL--225128-2023-JAAM; {"","Journal ID: ISSN 2159-6867"}
Journal Information:
MRS communications, Journal Name: MRS communications Vol. 14; ISSN 2159-6867
Publisher:
Springer NatureCopyright Statement
Country of Publication:
United States
Language:
English

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