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Sub-Nanometer Pt Clusters on Defective NiFe LDH Nanosheets as Trifunctional Electrocatalysts for Water Splitting and Rechargeable Hybrid Sodium-Air Batteries
Yu, Xueqing1; Guo, Junpo1; Li, Bo1; Xu, Jincheng1; Gao, Peng2; Hui, Kwan San3; Hui, Kwun Nam1; Shao, Huaiyu1
2021-06-16
Source PublicationACS Applied Materials and Interfaces
ISSN1944-8244
Volume13Issue:23Pages:26891-26903
Abstract

It is challenging to develop highly efficient and stable multifunctional electrocatalysts for improving the hydrogen evolution reaction (HER), the oxygen evolution reaction (OER), and the oxygen reduction reaction (ORR) for sustainable energy conversion and storage systems such as water-alkali electrolyzers (WAEs) and hybrid sodium-air batteries (HSABs). In this work, sub-nm Pt nanoclusters (NCs) on defective NiFe layered double hydroxide nanosheets (NixFe LDHs) are synthesized by a facile electrodeposition method. Due to the synergistic effect between Pt NCs and abundant atomic M(II) defects, along with hierarchical porous nanostructures, the Pt/NixFe LDHs catalysts exhibit superior trifunctional electrocatalytic activity and durability toward the HER/OER/ORR. A WAE fabricated with Pt/NixFe LDHs electrodes needs 1.47 V to reach a current density of 10 mA cm-2, much lower than that of the mixed 20% Pt/C and 20% Ir/C catalysts. An HSAB assembled by Pt/NixFe LDHs as a binder-free air cathode displays a high open-circuit voltage, a narrow overpotential gap, and remarkable rechargeability. This work provides a feasible strategy for constructing freestanding efficient trifunctional electrocatalysts for sustainable energy conversion and storage systems.

KeywordCation Vacancies Hybrid Na-air Battery Layered Double Hydroxide Sub-nm Pt Water Splitting
DOI10.1021/acsami.1c03337
URLView the original
Indexed BySCIE
Language英語English
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS IDWOS:000664289800022
Scopus ID2-s2.0-85108385891
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Cited Times [WOS]:1   [WOS Record]     [Related Records in WOS]
Document TypeJournal article
CollectionUniversity of Macau
Corresponding AuthorGao, Peng; Hui, Kwun Nam; Shao, Huaiyu
Affiliation1.Joint Key Laboratory of the Ministry of Education, Institute of Applied Physics and Materials Engineering, University of Macau, Taipa, Avenida da Universidade, 999078, Macao
2.School of Chemistry and Molecular Bioscience, University of Wollongong, Wollongong, 2500, Australia
3.School of Engineering, Faculty of Science, University of East Anglia, Norwich, NR4 7TJ, United Kingdom
First Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Corresponding Author AffilicationINSTITUTE OF APPLIED PHYSICS AND MATERIALS ENGINEERING
Recommended Citation
GB/T 7714
Yu, Xueqing,Guo, Junpo,Li, Bo,et al. Sub-Nanometer Pt Clusters on Defective NiFe LDH Nanosheets as Trifunctional Electrocatalysts for Water Splitting and Rechargeable Hybrid Sodium-Air Batteries[J]. ACS Applied Materials and Interfaces,2021,13(23):26891-26903.
APA Yu, Xueqing,Guo, Junpo,Li, Bo,Xu, Jincheng,Gao, Peng,Hui, Kwan San,Hui, Kwun Nam,&Shao, Huaiyu.(2021).Sub-Nanometer Pt Clusters on Defective NiFe LDH Nanosheets as Trifunctional Electrocatalysts for Water Splitting and Rechargeable Hybrid Sodium-Air Batteries.ACS Applied Materials and Interfaces,13(23),26891-26903.
MLA Yu, Xueqing,et al."Sub-Nanometer Pt Clusters on Defective NiFe LDH Nanosheets as Trifunctional Electrocatalysts for Water Splitting and Rechargeable Hybrid Sodium-Air Batteries".ACS Applied Materials and Interfaces 13.23(2021):26891-26903.
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