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Electrochemical-reduction-assisted assembly of ternary Ag nanoparticles/polyoxometalate/graphene nanohybrids and their activity in the electrocatalysis of oxygen reduction
Liu, Rongji1; Xian, Zhaowei2; Zhang, Shuangshuang1,3; Chen, Chunhua2; Yang, Zhihua2; Li, Hang4; Zheng, Wanquan4; Zhang, Guangjin1; Cao, Hongbin1
2015
Source PublicationRSC ADVANCES
ISSN2046-2069
Volume5Issue:91Pages:74447-74456
Abstract

The green, facile, electrochemical-reduction-assisted assembly of ternary Ag nanoparticles (NPs)@polyoxometalate (POM)/reduced graphene oxide (rGO) is reported. The POM served as an electrocatalyst and bridging molecule. Characterization using transmission electron microscopy (TEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), Raman and FT-IR spectroscopy analysis, etc., was performed and verified the structure of the prepared nanohybrids of Ag NPs@POM/rGO. The density and size of the Ag NPs on the rGO can be simply tuned by changing the concentration of Ag+. Most importantly, it is interesting to find that the ternary Ag NPs@POM/rGO nanohybrids showed much better electrocatalytic activities towards the oxygen reduction reaction than binary Ag NPs@POM and POM/rGO nanohybrids, and a direct four-electron transfer pathway was observed because of the synergistic effect of the Ag NPs and rGO. The electrocatalytic performance of Ag NPs@POM/rGO depended on the loading amount of Ag NPs, and 30% Ag NPs@POM/rGO showed the best electrocatalytic performance.

SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences
DOI10.1039/c5ra12556a
Indexed BySCI
Language英语
WOS KeywordMETAL-FREE ELECTROCATALYSTS ; NITROGEN-DOPED GRAPHENE ; SENSITIZED SOLAR-CELLS ; CARBON NANOTUBES ; EFFICIENT ELECTROCATALYST ; FACILE SYNTHESIS ; FUEL-CELLS ; PERFORMANCE ; CATALYSTS ; NANOPARTICLES
WOS Research AreaChemistry
WOS SubjectChemistry, Multidisciplinary
WOS IDWOS:000361116500038
Citation statistics
Cited Times:19[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.ipe.ac.cn/handle/122111/19539
Collection湿法冶金清洁生产技术国家工程实验室
Affiliation1.Chinese Acad Sci, Inst Proc Engn, Key Lab Green Proc & Engn, Beijing 100190, Peoples R China
2.Jianghan Univ, Coll Chem & Environm Engn, Key Lab Optoelect Chem Mat & Devices, Minist Educ, Wuhan 430056, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
4.Jianghan Univ, Inst Interdisciplinary Res, Wuhan 430056, Peoples R China
Recommended Citation
GB/T 7714
Liu, Rongji,Xian, Zhaowei,Zhang, Shuangshuang,et al. Electrochemical-reduction-assisted assembly of ternary Ag nanoparticles/polyoxometalate/graphene nanohybrids and their activity in the electrocatalysis of oxygen reduction[J]. RSC ADVANCES,2015,5(91):74447-74456.
APA Liu, Rongji.,Xian, Zhaowei.,Zhang, Shuangshuang.,Chen, Chunhua.,Yang, Zhihua.,...&Cao, Hongbin.(2015).Electrochemical-reduction-assisted assembly of ternary Ag nanoparticles/polyoxometalate/graphene nanohybrids and their activity in the electrocatalysis of oxygen reduction.RSC ADVANCES,5(91),74447-74456.
MLA Liu, Rongji,et al."Electrochemical-reduction-assisted assembly of ternary Ag nanoparticles/polyoxometalate/graphene nanohybrids and their activity in the electrocatalysis of oxygen reduction".RSC ADVANCES 5.91(2015):74447-74456.
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