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Ultrasound-assisted nitrogen and boron codoping of graphene oxide for efficient oxygen reduction reaction
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Zhang, Mingli, Tao, Hengcong, Liu, Yongchao, Yan, Chao, Hong, Song, Masa, Justus, Robertson, Alex W., Liu, Shizhen, Qiu, Jieshan and Sun, Zhenyu (2019) Ultrasound-assisted nitrogen and boron codoping of graphene oxide for efficient oxygen reduction reaction. ACS Sustainable Chemistry & Engineering, 7 (3). pp. 3434-3442. doi:10.1021/acssuschemeng.8b05654 ISSN 2168-0485.
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Official URL: http://dx.doi.org/10.1021/acssuschemeng.8b05654
Abstract
Development of naturally abundant, low cost, and energy-efficient electrocatalysts for the oxygen reduction reaction (ORR) is essential for commercialization of fuel cells. In this work, we report simple ultrasonication assisted synthesis of nitrogen and boron dual-doped graphene oxide (NB/GO) and demonstrate its application as an effective ORR catalyst realizing predominantly 4e– reduction of O2 to OH– in 0.1 M KOH. Enhanced ORR electrocatalysis of the dual B and N codoped GO as opposed to GO singly doped with B or N arises from the synergistic interaction of the boron and nitrogen species. The content and configuration of both N and B dopants can be readily tailored by controlling the ultrasonic conditions, thereby permitting tuning of the ORR activity. Furthermore, the developed NB/GO metal-free catalyst exhibited very promising long-term durability and resistance to methanol poisoning compared to the state-of the art Pt/C catalyst.
Item Type: | Journal Article | ||||||||
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Divisions: | Faculty of Science, Engineering and Medicine > Science > Physics | ||||||||
Journal or Publication Title: | ACS Sustainable Chemistry & Engineering | ||||||||
Publisher: | American Chemical Society | ||||||||
ISSN: | 2168-0485 | ||||||||
Official Date: | 4 February 2019 | ||||||||
Dates: |
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Volume: | 7 | ||||||||
Number: | 3 | ||||||||
Page Range: | pp. 3434-3442 | ||||||||
DOI: | 10.1021/acssuschemeng.8b05654 | ||||||||
Status: | Peer Reviewed | ||||||||
Publication Status: | Published | ||||||||
Access rights to Published version: | Restricted or Subscription Access | ||||||||
Copyright Holders: | American Chemical Society | ||||||||
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