Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/139598
Title: Amorphous Fe-Ni-P-B-O nanocages as efficient electrocatalysts for oxygen evolution reaction
Authors: Ren, Hao
Sun, Xiaoli
Du, Chengfeng
Zhao, Jin
Liu, Daobin
Fang, Wei
Kumar, Sonal
Chua, Rodney
Meng, Shize
Kidkhunthod, Pinit
Song, Li
Li, Shuiqing
Madhavi, Srinivasan
Yan, Qingyu
Keywords: Science::Chemistry
Issue Date: 2019
Source: Ren, H., Sun, X., Du, C., Zhao, J., Liu, D., Fang, W., . . . Yan, Q. (2019). Amorphous Fe-Ni-P-B-O nanocages as efficient electrocatalysts for oxygen evolution reaction. ACS Nano, 13(11), 12969-12979. doi:10.1021/acsnano.9b05571
Journal: ACS Nano
Abstract: Electrocatalysts are one of the most important parts for oxygen evolution reaction (OER) to overcome the sluggish kinetics. Herein, amorphous Fe–Ni–P–B–O (FNPBO) nanocages as efficient OER catalysts are synthesized by a simple low-cost and scalable method at room temperature. The samples are chemically stable, in clear contrast to reported unstable or even pyrophoric boride samples. The Fe/Ni ratio of the FNPBO nanocages can be continuously adjusted to optimize the OER catalytic performance. The FNPBO nanocages composed of multicomponent elements can weaken the metal–metal bonds, thus rearranging the electron density around the catalytic metal atom centers and reducing the energy barrier for intermediate formation. Hence the optimized FNPBO (Fe6.4Ni16.1P12.9B4.3O60.2) catalyst shows superior intrinsic electrocatalytic activity for OER. The low overpotential to afford the current density of 10 mA cm–2 (236 mV), the small Tafel slope (39 mV dec–1), and the high specific current density (26.44 mA cm–2) at a given overpotential of 300 mV make a sharp contrast to state-of-the-art RuO2 (327 mV, 136 mV dec–1, and 0.028 mA cm–2, respectively).
URI: https://hdl.handle.net/10356/139598
ISSN: 1936-0851
DOI: 10.1021/acsnano.9b05571
Rights: This document is the Accepted Manuscript version of a Published Work that appeared in final form in ACS Nano, copyright © American Chemical Society after peer review and technical editing by the publisher. To access the final edited and published work see https://doi.org/10.1021/acsnano.9b05571
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:MSE Journal Articles

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