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| 001 | 622045 | ||
| 005 | 20250715171535.0 | ||
| 024 | 7 | _ | |a 10.1021/acs.chemmater.4c02656 |2 doi |
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| 100 | 1 | _ | |a Kirsch, Andrea |0 P:(DE-H253)PIP1090396 |b 0 |
| 245 | _ | _ | |a Control of Crystallization Pathways in the BiFeO$_3$ –Bi$_2$ Fe$_4$O$_9$ System |
| 260 | _ | _ | |a Washington, DC |c 2024 |b American Chemical Society |
| 336 | 7 | _ | |a article |2 DRIVER |
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| 520 | _ | _ | |a Bismuth ferrites, specifically perovskite-type BiFeO$_3$ and mullite-type Bi$_2$Fe$_4$O$_9$, hold significant technological promise as catalysts, photovoltaics, and room-temperature multiferroics. However, challenges arise due to their frequent cocrystallization, particularly in the nanoregime, hindering the production of phase-pure materials. This study unveils a controlled sol–gel crystallization approach, elucidating the phase formation complexities in the bismuth ferrite oxide system by coupling thermochemical analysis and total scattering with pair distribution function analysis. We tune the crystallization pathways in the BiFeO$_3$–Bi$_2$Fe$_4$O$_9$ system by adjusting the metal to complexing agent ratio and pH during precursor preparation with a fixed Bi/Fe ratio of 1:2. Although all precursors undergo an amorphization process during heating, our results demonstrate a consistent correlation between the crystallization pathway and the initial structural entities formed during gel formation. Pair distribution function analysis reveals structural differences in the intermediate amorphous structures, which preferentially crystallize into either BiFeO$_3$ or Bi$_2$Fe$_4$O$_9$. This study offers mechanistic insights into the formation processes in the system and synthetic guidance for the controlled synthesis of pure Bi$_2$Fe$_4$O$_9$ and mixed BiFeO$_3$/Bi$_2$Fe$_4$O$_9$ nanomaterials. Additionally, it elucidates the unusual growth behavior and structural size dependence of Bi$_2$Fe$_4$O$_9$, particularly highlighting significant distortions in the local structure likely induced by the proximity of Bi’s stereoactive lone electron pairs at small sizes. |
| 536 | _ | _ | |a 631 - Matter – Dynamics, Mechanisms and Control (POF4-631) |0 G:(DE-HGF)POF4-631 |c POF4-631 |f POF IV |x 0 |
| 536 | _ | _ | |a 6G3 - PETRA III (DESY) (POF4-6G3) |0 G:(DE-HGF)POF4-6G3 |c POF4-6G3 |f POF IV |x 1 |
| 536 | _ | _ | |a FS-Proposal: I-20200535 (I-20200535) |0 G:(DE-H253)I-20200535 |c I-20200535 |x 2 |
| 536 | _ | _ | |a DFG project G:(GEPRIS)429360100 - Studien an in-situ Daten der totalen Streufunktion: Bildungsmechanismen von ternären multiferroischen Bismutferraten (429360100) |0 G:(GEPRIS)429360100 |c 429360100 |x 3 |
| 536 | _ | _ | |a MatMech - Live Tapings of Material Formation: Unravelling formation mechanisms in materials chemistry through Multimodal X-ray total scattering studies (804066) |0 G:(EU-Grant)804066 |c 804066 |f ERC-2018-STG |x 4 |
| 542 | _ | _ | |i 2024-12-29 |2 Crossref |u https://creativecommons.org/licenses/by-nc-nd/4.0/ |
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| 700 | 1 | _ | |a Strapasson, Guilherme B. |0 P:(DE-HGF)0 |b 1 |
| 700 | 1 | _ | |a Lefeld, Niels |0 P:(DE-H253)PIP1094529 |b 2 |u desy |
| 700 | 1 | _ | |a Gogolin, Mathias |0 P:(DE-H253)PIP1094528 |b 3 |
| 700 | 1 | _ | |a Videbæk, Mark C. |0 P:(DE-HGF)0 |b 4 |
| 700 | 1 | _ | |a Banerjee, Soham |0 P:(DE-H253)PIP1089091 |b 5 |
| 700 | 1 | _ | |a Bordallo, Heloisa N. |0 P:(DE-HGF)0 |b 6 |
| 700 | 1 | _ | |a Jensen, Kirsten M. Ø. |0 P:(DE-H253)PIP1016581 |b 7 |e Corresponding author |
| 773 | 1 | 8 | |a 10.1021/acs.chemmater.4c02656 |b American Chemical Society (ACS) |d 2024-12-29 |n 1 |p 338-348 |3 journal-article |2 Crossref |t Chemistry of Materials |v 37 |y 2024 |x 0897-4756 |
| 773 | _ | _ | |a 10.1021/acs.chemmater.4c02656 |g p. acs.chemmater.4c02656 |0 PERI:(DE-600)1500399-1 |n 1 |p 338-348 |t Chemistry of materials |v 37 |y 2024 |x 0897-4756 |
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