Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol
To maximize the size and structural advantages of nanomaterials in electrooxidation of ethanol, we herein report the synthesis of core–shell gold (Au)@Palladium (Pd) nanoparticles smaller than 3 nm in an ionic liquid, which combines the advantages of ionic liquids in preparing fine metal nanoparticl...
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KeAi Communications Co., Ltd.
2021-04-01
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doaj-afc988f04319411c81c6bd2c80b7ed0b2021-06-07T06:52:33ZengKeAi Communications Co., Ltd.Green Energy & Environment2468-02572021-04-0162229235Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanolHong Zhang0Ying Luo1Dong Chen2Hui Liu3Penglei Cui4Jun Yang5School of Chemical Engineering and Technology, North University of China, Taiyuan 030051, Shanxi, China; State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, ChinaSchool of Chemical Engineering and Technology, North University of China, Taiyuan 030051, Shanxi, China; Corresponding authors.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, ChinaState Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; Corresponding authors.State Key Laboratory of Multiphase Complex Systems, Institute of Process Engineering, Chinese Academy of Sciences, Beijing 100190, China; University of Chinese Academy of Sciences, No. 19A Yuquan Road, Beijing 100049, China; Zhongke Langfang Institute of Process Engineering, Fenghua Road No 1, Langfang Economic & Technical Development Zone, Hebei, 065001, China; Corresponding authors.To maximize the size and structural advantages of nanomaterials in electrooxidation of ethanol, we herein report the synthesis of core–shell gold (Au)@Palladium (Pd) nanoparticles smaller than 3 nm in an ionic liquid, which combines the advantages of ionic liquids in preparing fine metal nanoparticles with the benefits of core–shell nanostructures. This synthetic strategy relies on the use of an ionic liquid (1-(2′-aminoethyl)-3-methyl-imidazolum tetrafluoroborate) as a stabilizer to produce Au particles with an average size of ca. 2.41 nm, which are then served as seeds for the formation of tiny core–shell Au@Pd nanoparticles with different Au/Pd molar ratios. The strong electronic coupling between Au core and Pd shell endows the Pd shell with an electronic structure favorable for the ethanol oxidation reaction. In specific, the ionic liquid-derived core–shell Au@Pd nanoparticles at an Au/Pd molar ratio of 1/1 exhibit the highest mass- and area-based activities, approximately 11 times than those of commercial Pd/C catalyst for ethanol electrooxidation.http://www.sciencedirect.com/science/article/pii/S2468025720300261Ionic liquidCore–shell nanoparticlesGoldPalladiumEthanol oxidation reaction |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Hong Zhang Ying Luo Dong Chen Hui Liu Penglei Cui Jun Yang |
spellingShingle |
Hong Zhang Ying Luo Dong Chen Hui Liu Penglei Cui Jun Yang Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol Green Energy & Environment Ionic liquid Core–shell nanoparticles Gold Palladium Ethanol oxidation reaction |
author_facet |
Hong Zhang Ying Luo Dong Chen Hui Liu Penglei Cui Jun Yang |
author_sort |
Hong Zhang |
title |
Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol |
title_short |
Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol |
title_full |
Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol |
title_fullStr |
Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol |
title_full_unstemmed |
Ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol |
title_sort |
ionic liquid-derived core–shell gold@palladium nanoparticles with tiny sizes for highly efficient electrooxidation of ethanol |
publisher |
KeAi Communications Co., Ltd. |
series |
Green Energy & Environment |
issn |
2468-0257 |
publishDate |
2021-04-01 |
description |
To maximize the size and structural advantages of nanomaterials in electrooxidation of ethanol, we herein report the synthesis of core–shell gold (Au)@Palladium (Pd) nanoparticles smaller than 3 nm in an ionic liquid, which combines the advantages of ionic liquids in preparing fine metal nanoparticles with the benefits of core–shell nanostructures. This synthetic strategy relies on the use of an ionic liquid (1-(2′-aminoethyl)-3-methyl-imidazolum tetrafluoroborate) as a stabilizer to produce Au particles with an average size of ca. 2.41 nm, which are then served as seeds for the formation of tiny core–shell Au@Pd nanoparticles with different Au/Pd molar ratios. The strong electronic coupling between Au core and Pd shell endows the Pd shell with an electronic structure favorable for the ethanol oxidation reaction. In specific, the ionic liquid-derived core–shell Au@Pd nanoparticles at an Au/Pd molar ratio of 1/1 exhibit the highest mass- and area-based activities, approximately 11 times than those of commercial Pd/C catalyst for ethanol electrooxidation. |
topic |
Ionic liquid Core–shell nanoparticles Gold Palladium Ethanol oxidation reaction |
url |
http://www.sciencedirect.com/science/article/pii/S2468025720300261 |
work_keys_str_mv |
AT hongzhang ionicliquidderivedcoreshellgoldpalladiumnanoparticleswithtinysizesforhighlyefficientelectrooxidationofethanol AT yingluo ionicliquidderivedcoreshellgoldpalladiumnanoparticleswithtinysizesforhighlyefficientelectrooxidationofethanol AT dongchen ionicliquidderivedcoreshellgoldpalladiumnanoparticleswithtinysizesforhighlyefficientelectrooxidationofethanol AT huiliu ionicliquidderivedcoreshellgoldpalladiumnanoparticleswithtinysizesforhighlyefficientelectrooxidationofethanol AT pengleicui ionicliquidderivedcoreshellgoldpalladiumnanoparticleswithtinysizesforhighlyefficientelectrooxidationofethanol AT junyang ionicliquidderivedcoreshellgoldpalladiumnanoparticleswithtinysizesforhighlyefficientelectrooxidationofethanol |
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