Knowledge Management System Of Guangzhou Institute of Energy Conversion, CAS
| 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 Publication | JOURNAL OF MATERIALS SCIENCE
 |
| ISSN | 0022-2461 |
| Volume | 53Issue:6Pages:4089-4102 |
| Corresponding Author | Yan, Chang-feng(yancf@ms.giec.ac.cn) |
| Abstract | This 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. |
| DOI | 10.1007/s10853-017-1863-2 |
| WOS Keyword | MEMBRANE-FUEL-CELLS ; OXYGEN REDUCTION REACTION ; METHANOL OXIDATION ; CATALYTIC-ACTIVITY ; ALLOY ELECTROCATALYSTS ; MICELLE ENCAPSULATION ; PARTICLE-SIZE ; NANOPARTICLES ; CARBON ; PERFORMANCE |
| Indexed By | SCI |
| Language | 英语 |
| Funding Project | Natural 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 Area | Materials Science |
| Funding Organization | Natural Science Foundation of Guangdong Province ; National Natural Science Foundation of China ; Key Laboratory of Renewable Energy Foundation of Chinese Academy of Sciences |
| WOS Subject | Materials Science, Multidisciplinary |
| WOS ID | WOS:000418294200014 |
| Publisher | SPRINGER |
| Citation statistics | |
| Document Type | 期刊论文 |
| Identifier | http://ir.giec.ac.cn/handle/344007/22565 |
| Collection | 中国科学院广州能源研究所 |
| Corresponding Author | Yan, Chang-feng |
| Affiliation | 1.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 Affilication | GuangZhou 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. |
| Files in This Item: | There are no files associated with this item. | |||||
Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.
Edit Comment