Highly active and stable surface defects on Pt-based nanoshell/carbon nanotubes composite for alcohol oxidation catalysis

doi:10.1016/j.carbon.2025.120215

IMR OpenIR

	Highly active and stable surface defects on Pt-based nanoshell/carbon nanotubes composite for alcohol oxidation catalysis
	He, Juan 1,2; Li, Wenhua 3,4; Chen, Chao 1,2; Song, Yujie 1,2; Li, Changji 2; Yu, Hailong 1,2; Xiong, Ting 5; Yu, Zhi 1,2; Tai, Kaiping 1,2; Gao, Ning 3,4; Tan, Jun 5; Liu, Chang 1,2
通讯作者	Yu, Zhi(zyu@imr.ac.cn) ; Tai, Kaiping(kptai@imr.ac.cn) ; Gao, Ning(ning.gao@sdu.edu.cn) ; Tan, Jun(tanjun@jihualab.com) ; Liu, Chang(cliu@imr.ac.cn)
	2025-05-05
发表期刊	CARBON
ISSN	0008-6223
卷号	238 页码:9
摘要	The performance of electrocatalysts is closely related to their surface structures, which is difficult to controllable synthesis and long-term preservation due to their thermodynamic instability of the nanostructures. Herein, we propose an efficient new strategy for developing crystal defect-rich jagged Pt-based nanoshell with high density of high-index edge steps covering on single-walled carbon nanotubes (PtM@SWCNT NS). Large numbers of twin boundaries and stacking faults are generated due to the atomic planes sliding into the nanospaces of the grooves between SWCNT to form stable Pt-C bonds, as proved by experimental observation and molecular dynamics simulation. The high-index edge steps, crystal defects and the defect-induced surface strains lead to abundant active sites, and optimize the adsorption energies of intermediates by modulating the electronic structure of the catalyst surface atoms and hence, greatly improve the catalytic activities of methanol oxidation reaction (MOR) and ethanol oxidation reaction (EOR). The mass activity of PtFe@SWCNT NS in MOR and EOR is more than 5 times higher than that of commercial Pt/C, and outperforms most of the reported electrocatalysts. Meanwhile, PtFe@SWCNT NS also show excellent stability of in 3000s chronoamperometric test and 500 potential cycles, with the high-index edge steps and crystal defects well preserved.
关键词	Pt-based catalysts Carbon nanotubes High-index edge steps Twin boundaries Stacking faults Strain Methanol oxidation reaction Ethanol oxidation reaction
资助者	National Natural Science Foundation of China ; Science Fund for Distinguished Young Scholars of Liaoning Province ; Shenyang science and technology plan project
DOI	10.1016/j.carbon.2025.120215
收录类别	SCI
语种	英语
资助项目	National Natural Science Foundation of China[52073290] ; National Natural Science Foundation of China[51927803] ; Science Fund for Distinguished Young Scholars of Liaoning Province[2023JH6/100500004] ; Shenyang science and technology plan project[23-407-3-23]
WOS研究方向	Chemistry ; Materials Science
WOS类目	Chemistry, Physical ; Materials Science, Multidisciplinary
WOS记录号	WOS:001448460500001
出版者	PERGAMON-ELSEVIER SCIENCE LTD
引用统计
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/192054
专题	中国科学院金属研究所
通讯作者	Yu, Zhi; Tai, Kaiping; Gao, Ning; Tan, Jun; Liu, Chang
作者单位	1.Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China 2.Chinese Acad Sci, Inst Met Res, Shenyang Natl Lab Mat Sci, Shenyang 110016, Peoples R China 3.Shandong Univ, Inst Frontier & Interdisciplinary Sci, Qingdao 266237, Peoples R China 4.Shandong Univ, Key Lab Particle Phys & Particle Irradiat, MOE, Qingdao 266237, Peoples R China 5.Ji Hua Lab, Forshan 528200, Peoples R China
推荐引用方式 GB/T 7714	He, Juan,Li, Wenhua,Chen, Chao,et al. Highly active and stable surface defects on Pt-based nanoshell/carbon nanotubes composite for alcohol oxidation catalysis[J]. CARBON,2025,238:9.
APA	He, Juan.,Li, Wenhua.,Chen, Chao.,Song, Yujie.,Li, Changji.,...&Liu, Chang.(2025).Highly active and stable surface defects on Pt-based nanoshell/carbon nanotubes composite for alcohol oxidation catalysis.CARBON,238,9.
MLA	He, Juan,et al."Highly active and stable surface defects on Pt-based nanoshell/carbon nanotubes composite for alcohol oxidation catalysis".CARBON 238(2025):9.