Please use this identifier to cite or link to this item: https://hdl.handle.net/10356/137733
Title: Hierarchical hollow nanoprisms based on ultrathin Ni‐Fe layered double hydroxide nanosheets with enhanced electrocatalytic activity towards oxygen evolution
Authors: Yu, Le
Yang, Jing Fan
Guan, Bu Yuan
Lu, Yan
Lou, David Xiong Wen
Keywords: Science::Chemistry
Issue Date: 2017
Source: Yu, L., Yang, J. F., Guan, B. Y., Lu, Y., & Lou, D. X. W. (2018). Hierarchical hollow nanoprisms based on ultrathin Ni‐Fe layered double hydroxide nanosheets with enhanced electrocatalytic activity towards oxygen evolution. Angewandte Chemie International Edition, 57(1), 172-176. doi:10.1002/anie.201710877
Journal: Angewandte Chemie International Edition
Abstract: The oxygen evolution reaction (OER) is involved in various renewable energy systems, such as water‐splitting cells and metal–air batteries. Ni‐Fe layered double hydroxides (LDHs) have been reported as promising OER electrocatalysts in alkaline electrolytes. The rational design of advanced nanostructures for Ni‐Fe LDHs is highly desirable to optimize their electrocatalytic performance. Herein, we report a facile self‐templated strategy for the synthesis of novel hierarchical hollow nanoprisms composed of ultrathin Ni‐Fe LDH nanosheets. Tetragonal nanoprisms of nickel precursors were first synthesized as the self‐sacrificing template. Afterwards, these Ni precursors were consumed during the hydrolysis of iron(II) sulfate for the simultaneous growth of a layer of Ni‐Fe LDH nanosheets on the surface. The resultant Ni‐Fe LDH hollow prisms with large surface areas manifest high electrocatalytic activity towards the OER with low overpotential, small Tafel slope, and remarkable stability.
URI: https://hdl.handle.net/10356/137733
ISSN: 1433-7851
DOI: 10.1002/anie.201710877
Rights: © 2018 Wiley-VCH Verlag GmbH & Co. KGaA, Weinheim. All rights reserved.
Fulltext Permission: open
Fulltext Availability: With Fulltext
Appears in Collections:SCBE Journal Articles

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