publication
A review article by Panagiotis Herodotou, a ph. D. student who spent two months interning at the Yagi Laboratory from University of Cyprus, and colleagues regarding the prospects for implementing systems incorporating Mg rechargeable batteries has been accepted for publication in Electrochimica Acta.
A special feature article titled “Suppression of Electrolyte Decomposition in Magnesium Rechargeable Batteries by Controlling the Catalytic Activity of Positive Electrode Active Materials” has been published in Ceramics Journal (the Ceramic Society of Japan ).
This study clarifies that Fe ions in spinel-type oxides effectively suppress the oxidative decomposition of electrolytes and elucidates the mechanism behind this effect. The first-principles calculations essential to this research were performed by groups led by Professor Masanobu Nakayama of Nagoya Institute of Technology and Professor Yoshitaka Tateyama of Institute of Science Tokyo.
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A paper on CO2 electrolytic reduction by our Ph.D. student Jiaying Yan and colleagues has been selected for the back cover of Small Science.
A scientific paper on CO2 electroreduction by our Ph.D. student Jiaying Yan et al. has been accepted for publication in Small Science.
We have developed a metal Bi nanoflower catalyst for the highly efficient electrochemical reduction of CO2 to formate using electrochemical techniques. We have elucidated how defects and small-angle grain boundaries in metal Bi can significantly enhance catalytic performance. This study explains why the activity of materials with the same composition may differ significantly, and suggests guidelines for the design of catalysts for efficient CO2 electrolytic reduction.
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A scientific paper on magnesium rechargeable battery simulations by our former Project Assistant Professor, Dr. Atsushi Tamura et al., has been accepted for publication in Mater. Today Commun.
Through simulations and experiments using COMSOL Multiphysics® modeling software, we clarified the effects of the surface topography of the magnesium negative electrode and the transport properties of magnesium ions on the deposition behavior of magnesium in magnesium rechargeable batteries, and provided design guidelines for achieving uniform magnesium metal deposition. The design guideline for the realization of uniform magnesium metal deposition was presented. This result was achieved in collaboration with Dr. Mandai of NIMS.
A scientific paper on positive electrode active materials for magnesium rechargeable batteries by our former student, Project Researcher, Mr. Isaac Oda-Bayliss, et al. has been accepted for publication in J. Mater. Chem. A.
We have revealed that V-ion doping of α-KxMnO
An academic paper on oxide-based solid electrolytes by our student, DingYuan Huang et al. has been accepted for publication in EcoEnergy.
Ga-doped Li7La3Zr2O12 was used as an oxide-based solid electrolyte to investigate in detail how the synthesis conditions and particle size affect the electrochemical and chemical stability of the solid electrolyte.
An academic paper by our student Mr. Wang Wencong et al. on oxygen reduction catalysts has been accepted for publication in The Journal of Physical Chemistry C.
The effects of crystal structure, metal valence state, and cationic vacancy concentration on ORR catalytic activity were investigated by replacing Mn ions with Co ions in the perovskite-type oxide (LaMn)1-xO3 with cation vacancies. The results showed that the Co substitution shortens the Mn-O interatomic distance and increases the activity, but at the same time lowers the concentration of Mn ions, indicating that there is an appropriate amount of Co substitution that maximizes the activity. Furthermore, the application to Zn-air batteries was also made.
An academic paper by our student Mr. Wang Wencong et al. on oxygen reduction catalysts has been accepted for publication in Journal of Alloys and Compounds.
Perovskite-type oxides (LaMn)1-xO3 with non-stoichiometric compositions of varying cationic vacancies were synthesized to investigate the effect of Mn-O bond length on the catalytic activity for oxygen reduction, and a mechanism was proposed.
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