Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139029
Title: A microribbon hybrid structure of CoOx‐MoC encapsulated in N‐doped carbon nanowire derived from MOF as efficient oxygen evolution electrocatalysts
Authors: Huang, Tan
Chen, Yu
Lee, Jong-Min
Keywords: Engineering::Chemical engineering
Issue Date: 2017
Source: Huang, T., Chen, Y., & Lee, J.-M. (2017). A microribbon hybrid structure of CoOx‐MoC encapsulated in N‐doped carbon nanowire derived from MOF as efficient oxygen evolution electrocatalysts. Small, 13(48), 1702753-. doi:10.1002/smll.201702753
Journal: Small
Abstract: Developing highly efficient electrocatalysts for oxygen evolution is vital for renewable and sustainable energy production and storage. Herein, nitrogen-doped carbon encapsulated CoOx-MoC heterostructures are reported for the first time as high performance oxygen evolution electrocatalysts. The composition can be tuned by the addition of a Mo source to form a nanowire-assembled hierarchically porous microstructure, which can enlarge the specific surface area, thus exposing more active sites, facilitating mass transport and charge transfer. Moreover, it is demonstrated that the formation of CoOx-MoC heterostructures and the resulting synergistic effect between MoC and Co facilitate the reaction kinetics, leading to significantly improved oxygen evolution reaction (OER) activity with an onset overpotential of merely 290 mV, and a low overpotential of 330 mV to afford a current density of 10 mA cm-2 . The well-constructed microarchitecture contributes to superior long term stability electrochemical behaviors. This work provides a facile strategy via composition tuning and structure optimization for the development of next-generation nonprecious metal-based OER electrocatalysts.
URI: https://hdl.handle.net/10356/139029
ISSN: 1613-6810
DOI: 10.1002/smll.201702753
Rights: © 2017 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved.
Fulltext Permission: none
Fulltext Availability: No Fulltext
Appears in Collections:SCBE Journal Articles

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