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Synthesis of Heteroatom (B, N, and O)-Doped Carbons via Chlorination of a Carbonitride-Boride Mixture: Influence of Boron Addition on Structure and Electrochemical Properties of Carbon

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Title
Synthesis of Heteroatom (B, N, and O)-Doped Carbons via Chlorination of a Carbonitride-Boride Mixture: Influence of Boron Addition on Structure and Electrochemical Properties of Carbon
Author(s)
Ha, Daegwon; Heejong Shin; Lee, Mun-Keun; Kang, Shinhoo; Yung-Eun Sung; Jung, In-Ho
Publication Date
2021-07-01
Journal
JOURNAL OF PHYSICAL CHEMISTRY C, v.125, no.25, pp.13850 - 13861
Publisher
AMER CHEMICAL SOC
Abstract
The introduction of heteroatoms into carbon materials has been widely used to boost the surface reactivity of carbon materials, and doping of boron and/or nitrogen is one of the most powerful strategies to modify the characteristics of carbon materials. Unlike nitrogen doping that has been extensively investigated, the influence of boron doping on the synthesis of porous carbon materials has not been comprehensively understood. In this study, we successfully synthesize heteroatom (boron, nitrogen, and/or oxygen)-doped highly nanoporous carbon materials via the chlorination process of a carbonitride-boride mixture without additional treatment. Boron atoms are readily diffused from boride to adjacent carbonitride-derived carbon during the chlorination process and function as atomic welders, which are the key to construct a heteroatom-rich nanoporous carbon structure. Oxygen-rich nanoporous carbon and nitrogen-rich nanoporous carbon can be selectively synthesized by controlling the raw carbonitride precursor composition. They show superior catalytic performance in the 2e(-) and 4e(-) pathway oxygen reduction reaction, respectively.
URI
https://pr.ibs.re.kr/handle/8788114/10794
DOI
10.1021/acs.jpcc.1c02541
ISSN
1932-7447
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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