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 | Schools: | School of Materials Science & Engineering | Research Centres: | Energy Research Institute @ NTU (ERI@N) | 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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2019 Amorphous FeNiPBO Nanocages as Efficient Electrocatalysts for Oxygen Evolution Reaction (ACS Nano).pdf | 2.47 MB | Adobe PDF | View/Open |
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