兰州大学机构库 >化学化工学院
Combining surface chemical functionalization with introducing reactive oxygen species boosts ethanol electrooxidation
Zhao, Jinjuan; Shu, Junhao; Wang, Jiaxiao; Yang, HL(杨洪蕾); Dong, ZP(董正平); Li, SW(李树文)
2022-11-07
Online publication date2022-11
Source PublicationNanoscale   Impact Factor & Quartile
ISSN2040-3364
EISSN2040-3372
Volume14Issue:46Pages:17392-17400
page numbers9
AbstractThe introduction of functional groups or oxygen vacancies into Pd-based electrocatalysts is a powerful strategy for enhancing the electrocatalytic performances for many electrocatalytic reactions. Herein, an amorphous ceria-modified Pd nanocomposite anchored on d-4-amino-phenylalanine (DAP)-functionalized graphene nanosheets (Pd-CeO2−x/FGS) was prepared by a facile and effective one-pot synthetic strategy and further used as an electrocatalyst for the ethanol oxidation reaction (EOR) in alkaline electrolytes. The obtained Pd-CeO2−x/FGS exhibits relatively high electrocatalytic activity, fast kinetics and excellent antipoisoning ability as well as robust durability for EOR, outperforming the comparable electrocatalysts as well as commercial Pd/C. The experimental results show that the enhanced EOR properties of Pd-CeO2−x/FGS can be attributed to the DAP-functionalization and CeO2−x-modification. Adequate functional groups (amino and carboxyl groups) and abundant oxygen vacancies were introduced in Pd-CeO2−x/FGS by DAP-functionalization and CeO2−x-modification. The functional groups facilitate the anchoring of small nanoparticles onto the substrate as well as modulate the electron density of Pd. The oxygen vacancies boost the adsorption ability of the reactive oxygen species (OHads) and accelerate the kinetics of the potential-limiting step for EOR. This study proposes a new strategy for the rational design of highly efficient catalysts for the electro-oxidation reaction. © 2022 The Royal Society of Chemistry.
KeywordAlkalinity Amino acids Electrocatalysis Electrocatalysts Electrooxidation Ethanol Oxygen vacancies Electrocatalytic performance Electrocatalytic reactions Ethanol electro-oxidation Ethanol oxidation reaction Functionalizations Functionalized graphene Pd nanocomposites Pd-based electrocatalysts Reactive oxygen species Surface chemical functionalization
PublisherRoyal Society of Chemistry
DOI10.1039/d2nr04600h
Indexed ByEI ; SCIE
Language英语
WOS Research AreaChemistry ; Science & Technology - Other Topics ; Materials Science ; Physics
WOS SubjectChemistry, Multidisciplinary ; Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary ; Physics, Applied
WOS IDWOS:000886370700001
EI Accession Number20224813172061
EI KeywordsCerium oxide
EI Classification Number801.1 Chemistry, General ; 801.4.1 Electrochemistry ; 802.2 Chemical Reactions ; 803 Chemical Agents and Basic Industrial Chemicals ; 804.1 Organic Compounds ; 804.2 Inorganic Compounds ; 933.1 Crystalline Solids
Original Document TypeJournal article (JA) ; Article
PMID 36382672
Citation statistics
Cited Times:4[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttps://ir.lzu.edu.cn/handle/262010/491428
Collection化学化工学院
Corresponding AuthorDong, Zhengping; Li, Shuwen
Affiliation
State Key Laboratory of Applied Organic Chemistry, College of Chemistry and Chemical Engineering, Lanzhou University, Lanzhou; 730000, China
First Author AffilicationCollege of Chemistry and Chemical Engineering
Corresponding Author AffilicationCollege of Chemistry and Chemical Engineering
Recommended Citation
GB/T 7714
Zhao, Jinjuan,Shu, Junhao,Wang, Jiaxiao,et al. Combining surface chemical functionalization with introducing reactive oxygen species boosts ethanol electrooxidation[J]. Nanoscale,2022,14(46):17392-17400.
APA Zhao, Jinjuan,Shu, Junhao,Wang, Jiaxiao,Yang, Honglei,Dong, Zhengping,&Li, Shuwen.(2022).Combining surface chemical functionalization with introducing reactive oxygen species boosts ethanol electrooxidation.Nanoscale,14(46),17392-17400.
MLA Zhao, Jinjuan,et al."Combining surface chemical functionalization with introducing reactive oxygen species boosts ethanol electrooxidation".Nanoscale 14.46(2022):17392-17400.
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