From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions
- 승진 오
- 2018년 12월 2일
- 2분 분량
S.-J. Oh, S.-J. Lim, T.-S. You, K. M. Ok*, From a Metastable Layer to a Stable Ring: A Kinetic Study for Transformation Reactions of Li2Mo3TeO12 to Polyoxometalates, Chem. Eur. J., 2018, 24, 6712-6716.
First Published: 07 December 2017 (Online); Issue Online: 07 May 2018
Invited for the cover of this issue is the group of Kang Ming Ok at the Chung Ang University in Seoul. The image depicts stacked Jenga blocks with unstable structures and highly organized structures, depicting the metastable tellurites and the thermodynamically stable polyoxometalates, respectively.
A metastable layered tellurite (Li2Mo3TeO12) in an extremely strained environment has been synthesized. Li+‐exchange‐driven transformation reactions of Li2Mo3TeO12 to polyoxometalates have been successfully monitored by simple lab‐source X‐ray diffraction. Through the obtained kinetic data, a plausible mechanism for the solid‐state transformation reactions has been suggested. This new finding could be utilized in discovering novel metastable materials and their phase transitions. More information can be found in the Communication by K. M. Ok et al. on page 6712.
What is the most significant result of this study?
A metastable layered tellurite, Li2Mo3TeO12, in an extremely strained environment has been synthesized. Also, Li+‐exchange‐driven transformation reactions of Li2Mo3TeO12 to polyoxometalates have been successfully monitored by simple lab‐source X‐ray diffraction. Through the obtained kinetic data, a plausible mechanism for the solid‐state transformation reactions has been suggested. We believe that this new finding could be utilized in discovering novel metastable materials and their phase transitions.
What was the inspiration for this cover design?
We tried to focus on the observation of solid state transformation reactions using X‐ray diffraction measurements. The stacked Jenga blocks with unstable structures and highly organized structures, depict the metastable tellurites and the thermodynamically stable polyoxometalates, respectively. We also represented a lab source X‐ray as a shining light to monitor the transformation reactions. Finally, the background was drawn to celebrate PyeongChang 2018 Winter Olympic Games.
What other topics are you working on at the moment?
In addition to our research on kinetic studies of solid state reactions, we are trying to rationally design solid state materials with noncentrosymmetric (NCS) crystal structures. To discover functional NCS materials more effectively, we are investigating critical factors influencing framework structure and macroscopic centricity. We also explore a variety of NCS solid solutions to elucidate the origin of the related interesting properties.
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