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In Situ Monitoring of Mechanochemical Synthesis of Calcium Urea Phosphate Fertilizer Cocrystal Reveals Water-Based Autocatalysis

preprint
submitted on 22.08.2019 and posted on 26.08.2019 by Patrick Julien, Luzia S. Germann, Hatem M. Titi, Martin Etter, Robert E. Dinnebier, Lohit Sharma, Jonas Baltrusaitis, Tomislav Friscic
Using the mechanosynthesis of the calcium phosphate and urea fertilizer cocrystal as a model, we provide the first in situ investigation of autocatalysis in a mechanochemical reaction. The application of in situ Raman spectroscopy and synchrotron X-ray diffraction provided the first direct evidence of a mechanochemical system in which a reaction product (water) mediates the rate of transformation and underpins positive feedback kinetics.

Funding

NSERC Discovery Grant (RGPIN-2017-06467)

USA National Science Foundation (NSF), Grant CHE 1710120

History

Email Address of Submitting Author

patrick.julien@mail.mcgill.ca

Institution

McGill University

Country

Canada

ORCID For Submitting Author

0000-0002-7032-1198

Declaration of Conflict of Interest

No conflict of interest.

Version Notes

Version 1.

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