Nano-TaO_xN_y particles synthesized from oxy-tantalum phthalocyanine: how to prepare precursors to enhance the oxygen reduction reaction activity after ammonia pyrolysis?

Abstract

Registered charity number: 207890 www.rsc.org/MaterialsA As featured in: See M. Chisaka, A. Ishihara et al., J. Mater. Chem. A, 2015, 3, 16414.Showcasing work on slightly oxidized Ta 3 N 5 catalysts for oxygen reduction reaction by Dr. Chisaka at Hirosaki University and a group of Prof. Ishihara and Prof. Ota at Yokohama National University.Title: Nano-TaO x N y particles synthesized from oxy-tantalum phthalocyanine: how to prepare precursors to enhance the oxygen reduction reaction activity after ammonia pyrolysis? Nano-TaO x N y oxygen reduction reaction catalysts with a new active site, slightly oxidized-Ta 3 N 5 , were synthesized for use in polymer electrolyte fuel cell cathodes.

Emergence of Oxygen Reduction Activity in Zirconium Oxide-Based Compounds in Acidic Media: Creation of Active Sites for the Oxygen Reduction Reaction

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From single-site tantalum complexes to nanoparticles of TaxNy and TaOxNy supported on silica: elucidation of synthesis chemistry by dynamic nuclear polarization surface enhanced NMR spectroscopy and X-ray absorption spectroscopy

“…3(D) . 51 , 52 For 1C the main core-level is located at 398.5 eV (∼83%) whereas for 2B the nitrogen core-levels are more evenly distributed among the three binding energies (396, 397.7, and 398.5 eV). The data suggest that the preparation method has a strong impact on the homogeneity of the final synthesized tantalum nitride NPs: starting from the Ta(Me) 5 precursor allows one to form the most homogenous tantalum nitride NPs.…”

Self-supported amorphous TaNx(Oy)/nickel foam thin film as an advanced electrocatalyst for hydrogen evolution reaction

“…2(c)]. It is also well known that the surface of TaN is unstable and rapidly oxidizes in contact with air to form Ta 2 O 5 and Ta 3 N 5 phases, 24,25 this was also reflected in O 1S peak at 530.32 eV indicating the presence of lattice oxygen (Ta 2 O 5 ) [Fig. 2(d)].…”