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Bioinspired Synthesis of Melaninlike Nanoparticles for Highly N-Doped Carbons Utilized as Enhanced CO2 Adsorbents and Efficient Oxygen Reduction Catalysts

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Title
Bioinspired Synthesis of Melaninlike Nanoparticles for Highly N-Doped Carbons Utilized as Enhanced CO2 Adsorbents and Efficient Oxygen Reduction Catalysts
Author(s)
Hee Soo Kim; Minhyoung Kim; Min Seok Kang; Jihoon Ahn; Yung-Eun Sung; Won Cheol Yoo
Subject
Bioinspired synthesis, ; Biomass, ; CO2 adsorption, ; N-doped carbon, ; Oxygen reduction reaction
Publication Date
2018-02
Journal
ACS SUSTAINABLE CHEMISTRY & ENGINEERING, v.6, no.2, pp.2324 - 2333
Publisher
AMER CHEMICAL SOC
Abstract
Highly N-doped nanoporous carbons have been of great interest as a high uptake CO2 adsorbent and as an efficient metal-free oxygen reduction reaction (ORR) catalyst. Therefore, it is essential to produce porosity-tunable and highly N-doped carbons through cost-effective means. Herein, we introduce the bioinspired synthesis of a monodisperse and N-enriched melaninlike polymer (MP) resembling the sepia biopolymer (SP) from oceanic cuttlefish. These polymers were subsequently utilized for highly N-doped synthetic carbon (MC) and biomass carbon (SC) spheres. An adequate CO2 activation process fine-tunes the ultramicroporosity (<1 nm) of N-doped MC and SC spheres, those with maximum ultramicroporosities of which show remarkable CO2 adsorption capacities. In addition, N-doped MC and SC with ultrahigh surface areas of 2677 and 2506 m2/g, respectively, showed excellent ORR activities with a favored four electron reduction pathway, long-term durability, and better methanol tolerance, comparable to a commercial Pt-based catalyst. © 2017 American Chemical Society
URI
https://pr.ibs.re.kr/handle/8788114/4686
DOI
10.1021/acssuschemeng.7b03680
ISSN
2168-0485
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
Files in This Item:
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