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Electrocatalysis of carbon black- or chitosan-functionalized activated carbon nanotubes-supported Pd with a small amount of La2O3 towards methanol oxidation in alkaline media
Alternative TitleInt. J. Hydrog. Energy
Wang, Li1,2; Wang, Yi1; Li, An2; Yang, Yunshang2; Wang, Jun1,3; Zhao, Huiru1,4; Du, Xuan1; Qi, Tao1
2014-09-12
Source PublicationINTERNATIONAL JOURNAL OF HYDROGEN ENERGY
ISSN0360-3199
Volume39Issue:27Pages:14730-14738
AbstractThe Pd/C catalysts with and without a small amount of La2O3 were synthesized by a simple reduction reaction with sodium borohydride in aqueous solution. The structure and morphology of these catalysts were characterized by X-ray diffraction, energy dispersive X-ray spectroscopy and transmission electron microscopy. The electrocatalytic performance of these catalysts for methanol oxidation in alkaline media was investigated using cyclic voltammetry, chronoamperometry and CO stripping experiments. The results show that the Pd La2O3/C catalyst has a higher catalytic activity than the Pd/C catalyst, but the effect of La2O3 cannot be explained by a bi-functional mechanism. X-Ray photoelectron spectroscopy analyses suggest that the higher content of metallic Pd caused by the addition of La2O3 contributes to the better catalytic activity of Pd La2O3/C. Based on the good electrocatalytic performance of Pd La2O3/C, the Pd La2O3 catalyst supported on chitosan (CS)-functionalized activated carbon nanotubes was prepared, and it exhibited a better catalytic activity. The improvement is attributed to the good dispersion status of metal particles and the further increase of metallic Pd due to the presence of CS. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.; The Pd/C catalysts with and without a small amount of La2O3 were synthesized by a simple reduction reaction with sodium borohydride in aqueous solution. The structure and morphology of these catalysts were characterized by X-ray diffraction, energy dispersive X-ray spectroscopy and transmission electron microscopy. The electrocatalytic performance of these catalysts for methanol oxidation in alkaline media was investigated using cyclic voltammetry, chronoamperometry and CO stripping experiments. The results show that the Pd La2O3/C catalyst has a higher catalytic activity than the Pd/C catalyst, but the effect of La2O3 cannot be explained by a bi-functional mechanism. X-Ray photoelectron spectroscopy analyses suggest that the higher content of metallic Pd caused by the addition of La2O3 contributes to the better catalytic activity of Pd La2O3/C. Based on the good electrocatalytic performance of Pd La2O3/C, the Pd La2O3 catalyst supported on chitosan (CS)-functionalized activated carbon nanotubes was prepared, and it exhibited a better catalytic activity. The improvement is attributed to the good dispersion status of metal particles and the further increase of metallic Pd due to the presence of CS. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
KeywordPd-la2o3/c Methanol Oxidation Activated Carbon Nanotubes Chitosan Electrocatalysts
SubtypeArticle
WOS HeadingsScience & Technology ; Physical Sciences ; Technology
DOI10.1016/j.ijhydene.2014.07.076
URL查看原文
Indexed BySCI
Language英语
WOS KeywordREDUCED GRAPHENE OXIDE ; FUEL-CELLS ; GOLD NANOPARTICLES ; ELECTROOXIDATION ; CATALYSTS ; ETHANOL ; ACID ; NANOCOMPOSITES ; PERFORMANCE ; TB
WOS Research AreaChemistry ; Electrochemistry ; Energy & Fuels
WOS SubjectChemistry, Physical ; Electrochemistry ; Energy & Fuels
WOS IDWOS:000341897500025
Citation statistics
Cited Times:13[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Version出版稿
Identifierhttp://ir.ipe.ac.cn/handle/122111/11656
Collection研究所(批量导入)
Affiliation1.Chinese Acad Sci, Natl Engn Lab Hydrometallurg Cleaner Prod Technol, Inst Proc Engn, Beijing 100190, Peoples R China
2.Lanzhou Univ Technol, Coll Petrochem Technol, Lanzhou 730050, Peoples R China
3.Inner Mongolia Univ Sci & Technol, Sch Chem & Chem Engn, Baotou 014010, Peoples R China
4.Henan Normal Univ, Sch Chem & Chem Engn, Key Lab Green Chem Media & React, Minist Educ, Xinxiang 453007, Peoples R China
Recommended Citation
GB/T 7714
Wang, Li,Wang, Yi,Li, An,et al. Electrocatalysis of carbon black- or chitosan-functionalized activated carbon nanotubes-supported Pd with a small amount of La2O3 towards methanol oxidation in alkaline media[J]. INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,2014,39(27):14730-14738.
APA Wang, Li.,Wang, Yi.,Li, An.,Yang, Yunshang.,Wang, Jun.,...&Qi, Tao.(2014).Electrocatalysis of carbon black- or chitosan-functionalized activated carbon nanotubes-supported Pd with a small amount of La2O3 towards methanol oxidation in alkaline media.INTERNATIONAL JOURNAL OF HYDROGEN ENERGY,39(27),14730-14738.
MLA Wang, Li,et al."Electrocatalysis of carbon black- or chitosan-functionalized activated carbon nanotubes-supported Pd with a small amount of La2O3 towards methanol oxidation in alkaline media".INTERNATIONAL JOURNAL OF HYDROGEN ENERGY 39.27(2014):14730-14738.
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