Spectroscopy of N-doped graphene catalyst surface toward ORR under reaction conditions

Kubo Kazufumi, Santosh Singh K., Furukawa Moeko, Hikita Yusuke, Takeyasu Kotaro, Nakamura Junji

doi:10.14886/jvss.2019.0_3cp02

Bibliographic Information

Other Title

反応条件下における窒素ドープグラフェン触媒表面の分光

Description

<p>In this study, in-situ Raman spectroscopy and IR spectroscopy were operated to reveal ORR elementary steps under acidic condition on molecular catalyst containing pyri-N and strongly-hydrophobic. We found the pyri-N was protonated in sulfuric acid before ORR starts. At the same time, hydrogensulfate (HSO₄⁻) adsorbed as a counter anion. DFT calculations also showed these protonation steps and the protonated pyri-N can recierve an electron to form neutral atomic with the application of voltages. These hydrogenation steps could trigger the O₂ adsorption effectively.</p>

Journal

Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science

Abstract book of Annual Meeting of the Japan Society of Vacuum and Surface Science 2019 (0), 3Cp02-, 2019

The Japan Society of Vacuum and Surface Science

Details 詳細情報について

CRID: 1390001277376960640

NII Article ID: 130007737800

DOI: 10.14886/jvss.2019.0_3cp02

ISSN: 24348589

Text Lang: ja

Data Source

JaLC
CiNii Articles

Abstract License Flag: Disallowed

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