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Effective size-controlled synthesis and electrochemical characterization of ordered Pt nanopattern arrays from self-assembling block copolymer template
Gan, Yuan1,2,3; Wang, Zhi-da1,2; Shi, Yan1,2; Guo, Chang-qing1,2; Tan, Hong-yi1,2; Yan, Chang-feng1,2,3
2018-03-01
Source PublicationJOURNAL OF MATERIALS SCIENCE
ISSN0022-2461
Volume53Issue:6Pages:4089-4102
Corresponding AuthorYan, Chang-feng(yancf@ms.giec.ac.cn)
AbstractThis work offers an effective size-controlled synthesis of platinum nanoparticle (Pt NP) arrays for electrocatalyst through self-assembled nanopatterns of block copolymers on titanium (Ti) wafers. Size, spacing and uniformity of Pt NP with loading of Pt to a minimum were investigated to be controlled and adjusted in order to improve the electrochemically active surface area (ECSA) and ECSA stability, and Pt concentration in copolymer/chloroplatinic acid (H2PtCl6) solution was verified to be one of the most important factors to control the arrays' structure. In our case, the Pt NPs with predictable size of 5-16.5 nm could be obtained when the Pt concentration is larger than 0.05 mg ml(-1), which the dominant diameter is proved to be proportional to one-third power of the Pt concentration according to the linear relation of templates' Pt/N mass ratio versus Pt concentration, and the Pt NPs remain highly ordered arrays with predictable spacing when the Pt concentration is larger than 0.125 mg ml(-1). Decrease in Pt concentration from 2 to 0.125 mg ml(-1) is an effective method to improve the ECSA and durability simultaneously. The Pt NP arrays exhibit not only a remarkable initial ECSA value of 106.2 m(2) g(-1), but also a pseudo-zero particle aggregation possibility during 3000-cycle voltammetry, which is attributed to the high Pt NP dispersion and the ordered arrays that improve the Pt utilization and lower the possibility of aggregation.
DOI10.1007/s10853-017-1863-2
WOS KeywordMEMBRANE-FUEL-CELLS ; OXYGEN REDUCTION REACTION ; METHANOL OXIDATION ; CATALYTIC-ACTIVITY ; ALLOY ELECTROCATALYSTS ; MICELLE ENCAPSULATION ; PARTICLE-SIZE ; NANOPARTICLES ; CARBON ; PERFORMANCE
Indexed BySCI
Language英语
Funding ProjectNatural Science Foundation of Guangdong Province[2015A030312007] ; National Natural Science Foundation of China[51576201] ; Key Laboratory of Renewable Energy Foundation of Chinese Academy of Sciences[Y707j81001] ; Key Laboratory of Renewable Energy Foundation of Chinese Academy of Sciences[Y609JK1001]
WOS Research AreaMaterials Science
Funding OrganizationNatural Science Foundation of Guangdong Province ; National Natural Science Foundation of China ; Key Laboratory of Renewable Energy Foundation of Chinese Academy of Sciences
WOS SubjectMaterials Science, Multidisciplinary
WOS IDWOS:000418294200014
PublisherSPRINGER
Citation statistics
Cited Times:2[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://ir.giec.ac.cn/handle/344007/22565
Collection中国科学院广州能源研究所
Corresponding AuthorYan, Chang-feng
Affiliation1.Chinese Acad Sci, Guangzhou Inst Energy Convers, Hydrogen Prod & Utilizat Lab, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
2.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China
3.Univ Chinese Acad Sci, Beijing 100039, Peoples R China
First Author AffilicationGuangZhou Institute of Energy Conversion,Chinese Academy of Sciences
Recommended Citation
GB/T 7714
Gan, Yuan,Wang, Zhi-da,Shi, Yan,et al. Effective size-controlled synthesis and electrochemical characterization of ordered Pt nanopattern arrays from self-assembling block copolymer template[J]. JOURNAL OF MATERIALS SCIENCE,2018,53(6):4089-4102.
APA Gan, Yuan,Wang, Zhi-da,Shi, Yan,Guo, Chang-qing,Tan, Hong-yi,&Yan, Chang-feng.(2018).Effective size-controlled synthesis and electrochemical characterization of ordered Pt nanopattern arrays from self-assembling block copolymer template.JOURNAL OF MATERIALS SCIENCE,53(6),4089-4102.
MLA Gan, Yuan,et al."Effective size-controlled synthesis and electrochemical characterization of ordered Pt nanopattern arrays from self-assembling block copolymer template".JOURNAL OF MATERIALS SCIENCE 53.6(2018):4089-4102.
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