Pinghong Xu

TL;DR: In this paper, a detailed phase transformation pathway in the LMR cathode (Li[Li 0.2Ni0.2Mn0.6]O2) during cycling for samples prepared by the hydrothermal assisted (HA) method is reported.

TL;DR: The results reveal that LMR cathodes prepared by coprecipitation and sol-gel methods, which are dominated by a LiMO2 type R3̅m structure, show significant nonuniform Ni distribution at particle surfaces, while those prepared by a hydrothermal assisted method with uniform atomic level spatial distribution demonstrate much better capacity retention and much smaller voltage fade.

TL;DR: An operando TEM electrochemical liquid cell is developed, providing the configuration of a real battery and in a relevant liquid electrolyte, and discovered new insights different from the open cell configuration-the dynamics of the electrolyte and, potentially, a future quantitative characterization of the solid electrolyte interphase layer formation and structural and chemical evolution.

TL;DR: IR and X-ray absorption spectra and electron micrographs determine the structures and locations of the platinum complexes in the zeolite pores, demonstrate the platinum-support bonding, and show that the platinum remained site isolated after oxidation and catalysis.

TL;DR: The substantially higher adsorption of propionic acid demonstrated by IR spectroscopy and the higher reactivity to O2 exchange reactions with the more active catalyst indicate that the higher concentration of active oxygen defects on m-ZRO2 compared to t-ZrO2 causes the higher activity of Ni/m-Z rO2.