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

M. Chisaka; A. Ishihara; N. Uehara; M. Matsumoto; H. Imai; K. Ota

doi:10.1039/C5TA03860J

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

M. Chisaka,*^a A. Ishihara,*^bc N. Uehara,^b M. Matsumoto,^d H. Imai^d and K. Ota^b

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* Corresponding authors

^a Department of Electronics and Information Technology, Hirosaki University, 3 Bunkyo-cho, Hirosaki, Aomori 036-8561, Japan
E-mail: chisaka@eit.hirosaki-u.ac.jp
Fax: +81 172 39 3559

^b Green Hydrogen Research Centre, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama 240-8501, Japan

^c Institute of Advanced Sciences, Yokohama National University, 79-5 Tokiwadai, Hodogaya-ku, Yokohama, Kanagawa 240-8501, Japan
E-mail: a-ishi@ynu.ac.jp
Fax: +81 45 339 4021

^d Device Functional Analysis Department, NISSAN ARC Ltd, 1 Natsushima, Yokosuka, Kanagawa 237-0061, Japan

Abstract

Nano-TaO_xN_y oxygen reduction reaction (ORR) catalysts were supported on multi-walled carbon nanotubes (MWCNTs) using two-step pyrolysis of oxy-tantalum phthalocyanine (TaOPc). For the first time, slightly oxidized Ta₃N₅ has been experimentally proposed to be ORR active in acidic media.

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Article information

DOI: https://doi.org/10.1039/C5TA03860J
Article type: Communication
Submitted: 28 May 2015
Accepted: 29 Jun 2015
First published: 30 Jun 2015

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J. Mater. Chem. A, 2015,3, 16414-16418

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

M. Chisaka, A. Ishihara, N. Uehara, M. Matsumoto, H. Imai and K. Ota, J. Mater. Chem. A, 2015, 3, 16414 DOI: 10.1039/C5TA03860J

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Journal of Materials Chemistry A