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Realizing the potential of hydrophobic crystalline carbon as a support for oxygen evolution electrocatalysts

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Title
Realizing the potential of hydrophobic crystalline carbon as a support for oxygen evolution electrocatalysts
Author(s)
Kim, Myeong-Geun; Lee, Tae Kyung; Lee, Eungjun; Park, Subin; Lee, Hyun Ju; Jin, Haneul; Lee, Dong Wook; Jeong, Min-Gi; Jung, Hun-Gi; Im, Kyungmin; Hu, Chuan; Ham, Hyung Chul; Song, Kwang Ho; Yung-Eun Sung; Lee, Young Moo; Yoo, Sung Jong
Publication Date
2023-11
Journal
ENERGY & ENVIRONMENTAL SCIENCE, v.16, no.11, pp.5019 - 5028
Publisher
ROYAL SOC CHEMISTRY
Abstract
Anion exchange membrane water electrolysis (AEMWE) is a sustainable solution for achieving net-zero carbon emissions and meeting growing energy demands through green H-2 production. However, its commercialization has not been realized thus far owing to inefficient catalyst use and unsatisfactory performance, which are correlated to the inadequacy of current electrode structures. In this study, we developed an efficient electrode structure based on a corrosion-resistant hydrophobic crystalline carbon support, which was incorporated as a support for Fe-Ni-Co layered double hydroxide electrocatalysts. We observed an AEMWE performance greater than that reported in previous studies in terms of activity [mass-specific power (24.1 kW g(metal)(-1))] and durability (-0.06 mV h(-1) for 520 h at 1.0 A cm(-2)). This could be attributed to the improved mass transport because of rapid water diffusion around the hydrophobic carbon and strong metal-carbon interactions. We believe that this study will promote the development of more carbon-supported oxygen evolution reaction electrocatalysts.
URI
https://pr.ibs.re.kr/handle/8788114/14415
DOI
10.1039/d3ee00987d
ISSN
1754-5692
Appears in Collections:
Center for Nanoparticle Research(나노입자 연구단) > 1. Journal Papers (저널논문)
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