Scalable nanoarchitectonics with microporous polymer composite for methanol-tolerant ORR electrocatalysts

Abin Sebastian; Atanu Panda; Ravi Nandan; Joel Henzie; Ovidiu Cretu; Jian Xu; Nadiia Velychkivska; Renzhi Ma; Pooja Gakhad; Abhishek Kumar Singh; Gary J. Richards; Koji Kimoto; Lok Kumar Shrestha; Katsuhiko Ariga; Yusuke Yamauchi; Jonathan P. Hill

doi:10.1039/D4TA04577G

Scalable nanoarchitectonics with microporous polymer composite for methanol-tolerant ORR electrocatalysts†

Abin Sebastian,

^a Atanu Panda,

^a Ravi Nandan,^a Joel Henzie,

^a Ovidiu Cretu,^b Jian Xu,^c Nadiia Velychkivska,^a Renzhi Ma,

^a Pooja Gakhad,^d Abhishek Kumar Singh,

^d Gary J. Richards,^e Koji Kimoto,^b Lok Kumar Shrestha,

^af Katsuhiko Ariga,

^ag Yusuke Yamauchi^hij and Jonathan P. Hill

*^a

Author affiliations

* Corresponding authors

^a Research Center for Materials Nanoarchitectonics (MANA), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Ibaraki, Japan
E-mail: jonathan.hill@nims.go.jp

^b Center for Basic Research on Materials (CBRM), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Ibaraki, Japan

^c International Center for Young Scientists (ICYS), National Institute for Materials Science (NIMS), Tsukuba 305-0044, Ibaraki, Japan

^d Materials Research Centre, Indian Institute of Science, Mathikere, Bengaluru, Karnataka 560012, India

^e Department of Applied Chemistry, Graduate School of Engineering and Science, Shibaura Institute of Technology, Fukasaku 307, Minuma-ku, Saitama-shi, Saitama 337-8570, Japan

^f Department of Materials Science, Institute of Pure and Applied Sciences, University of Tsukuba, 1-1-1, Tennodai, Tsukuba 305-8573, Ibaraki, Japan

^g Department of Advanced Materials Science, Graduate School of Frontier Sciences, The University of Tokyo, 5-1-5 Kashiwanoha, Kashiwa, Chiba 277-8561, Japan

^h Department of Materials Process Engineering, Graduate School of Engineering, Nagoya University, Nagoya 464-8603, Japan

ⁱ Department of Chemical and Biomolecular Engineering, Yonsei University, 50 Yonsei-ro, Seodaemun-gu, Seoul 03722, South Korea

^j Australian Institute for Bioengineering and Nanotechnology (AIBN) and School of Chemical Engineering, The University of Queensland, Brisbane, Queensland 4072, Australia

Abstract

We report an efficient ORR electrocatalyst containing cobalt single atom and cobalt nanoparticle active sites embedded in a porous nitrogen-doped graphitic carbon network. The robust electrocatalyst exhibits superior electrochemical ORR activity with onset and half-wave potentials of 0.96 V and 0.87 V (vs. reversible hydrogen electrode), respectively, and has excellent durability and methanol tolerance further enhancing the potential of this system for practical applications.

Journal of Materials Chemistry A

Scalable nanoarchitectonics with microporous polymer composite for methanol-tolerant ORR electrocatalysts†

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Scalable nanoarchitectonics with microporous polymer composite for methanol-tolerant ORR electrocatalysts

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