Effective size-controlled synthesis and electrochemical characterization of ordered Pt nanopattern arrays from self-assembling block copolymer template

doi:10.1007/s10853-017-1863-2

	Effective size-controlled synthesis and electrochemical characterization of ordered Pt nanopattern arrays from self-assembling block copolymer template
	Gan, Yuan 1,2,3; Wang, Zhi-da 2,3; Shi, Yan 2,3; Guo, Chang-qing2,3 ; Tan, Hong-yi 2,3; Yan, Chang-feng1,2,3
刊名	JOURNAL OF MATERIALS SCIENCE
	2018-03-01
卷号	53 期号:6 页码:4089-4102
ISSN号	0022-2461
DOI	10.1007/s10853-017-1863-2
通讯作者	Yan, Chang-feng(yancf@ms.giec.ac.cn)
英文摘要	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.
资助项目	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关键词	MEMBRANE-FUEL-CELLS ; OXYGEN REDUCTION REACTION ; METHANOL OXIDATION ; CATALYTIC-ACTIVITY ; ALLOY ELECTROCATALYSTS ; MICELLE ENCAPSULATION ; PARTICLE-SIZE ; NANOPARTICLES ; CARBON ; PERFORMANCE
WOS研究方向	Materials Science
语种	英语
出版者	SPRINGER
WOS记录号	WOS:000418294200014
资助机构	Natural Science Foundation of Guangdong Province ; National Natural Science Foundation of China ; Key Laboratory of Renewable Energy Foundation of Chinese Academy of Sciences
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/22564]
专题	中国科学院广州能源研究所
通讯作者	Yan, Chang-feng
作者单位	1.Univ Chinese Acad Sci, Beijing 100039, Peoples R China 2.Guangdong Key Lab New & Renewable Energy Res & De, Guangzhou 510640, Guangdong, Peoples R China 3.Chinese Acad Sci, Guangzhou Inst Energy Convers, Hydrogen Prod & Utilizat Lab, Key Lab Renewable Energy, Guangzhou 510640, Guangdong, Peoples R China
推荐引用方式 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.