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Isotope Labeling Reveals Fast Atomic and Molecular Exchange in Mechanochemical Milling Reactions
Stipe Lukin1, Martina Tireli1, Tomislav Stolar1
1Division of Physical Chemistry , Ruđ̵er Bošković Institute , Bijenička 54 , 10000 Zagreb , Croatia.
Abstract:
Using tandem in situ monitoring and isotope-labeled solids, we reveal that mechanochemical ball-milling overcomes inherently slow solid-state diffusion through continuous comminution and growth of milled particles. This process occurs with or without a net chemical reaction and also occurs between solids and liquid additives that can be practically used for highly efficient deuterium labeling of solids. The presented findings reveal a fundamental aspect of milling reactions and also delineate a methodology that should be considered in the study of mechanochemical reaction mechanisms.
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