Atom-Ratio-Conducted Tailoring of PdAu Bimetallic Nanocrystals with Distinctive Shapes and Dimensions for Boosting the ORR Performance

doi:10.1002/chem.201905284

	Atom-Ratio-Conducted Tailoring of PdAu Bimetallic Nanocrystals with Distinctive Shapes and Dimensions for Boosting the ORR Performance
	Wang, Jingchun 1; Li, Meng 1; Zhang, Jingzi 1; Yan, Yawei 1; Qiu, Xiaoyu 1; Cai, Bingfeng 1; Yang, Gaixiu 2; Tang, Yawen 1
刊名	CHEMISTRY-A EUROPEAN JOURNAL
	2020-04-06
卷号	26 期号:20 页码:4480-4488
关键词	2D porous nanosheets dimension conversion oxygen reduction reaction PdAu nanocrystals structure-activity relationships
ISSN号	0947-6539
DOI	10.1002/chem.201905284
通讯作者	Qiu, Xiaoyu(qxy18251813615@163.com) ; Yang, Gaixiu(yanggx@ms.giec.ac.cn) ; Tang, Yawen(tangyawen@njnu.edu.cn)
英文摘要	Systematically manipulating the shape, dimension, and surface structure of PdAu nanocrystals is an active subject because it offers a powerful means to regulate and investigate their structure-activity relationship. Meanwhile, it is still urgent to reduce the use of two-dimensional precious-metal-based nanomaterials. This work demonstrates that PdAu nanocrystals with a variety of shapes/dimensions, including 1D anisotropic nanowires, 2D porous nanosheets, and 3D penetrative nanoflowers, can be systematically synthesized by simply adjusting the atomic ratio or the reaction time in the same protocol. The resultant PdAu nanocrystals with distinctive shapes, but the same building blocks triumphantly avoid the effects of facet and surface properties; this represents an ideal platform for directly comparing the oxygen reduction reaction (ORR) activity. 2D porous PdAu nanosheets demonstrate superior ORR performance (E-onset = 1.040 V, E-1/2 = 0.932 V) compared with other-dimension-based samples and commercial Pd black; this is attributed to the abundant surface atoms and omni-directional mass-transfer channels. This work not only paves the way for systematically measuring a series of distinctive PdAu nanocrystals as non-Pt electrocatalysts, but also sheds light on the study of structures/dimensions in tuning the catalytic properties of bimetallic nanocrystals.
资助项目	National Natural Science Foundation of China[21902078] ; National Natural Science Foundation of China[21875112] ; Natural Science Foundation of Jiangsu Province[BK20171473] ; Natural Science Foundation of Guangdong[2017A030310280] ; Natural Science Foundation of Jiangsu Higher Education Institutions of China[19KJB150033] ; National and Local Joint Engineering Research Center of Biomedical Functional Materials ; Priority Academic Program Development of Jiangsu Higher Education Institutions
WOS关键词	MILD-STEEL SURFACE ; ONE-POT SYNTHESIS ; OXYGEN-REDUCTION ; FUNCTIONALIZED GRAPHENE ; HCL MEDIUM ; NANOSHEETS ; NANOPARTICLES ; MOLECULES ; OXIDATION ; STRATEGY
WOS研究方向	Chemistry
语种	英语
出版者	WILEY-V C H VERLAG GMBH
WOS记录号	WOS:000520238500001
资助机构	National Natural Science Foundation of China ; Natural Science Foundation of Jiangsu Province ; Natural Science Foundation of Guangdong ; Natural Science Foundation of Jiangsu Higher Education Institutions of China ; National and Local Joint Engineering Research Center of Biomedical Functional Materials ; Priority Academic Program Development of Jiangsu Higher Education Institutions
内容类型	期刊论文
源URL	[http://ir.giec.ac.cn/handle/344007/26866]
专题	中国科学院广州能源研究所
通讯作者	Qiu, Xiaoyu; Yang, Gaixiu; Tang, Yawen
作者单位	1.Nanjing Normal Univ, Sch Chem & Mat Sci, Jiangsu Collaborat Innovat Ctr Biomed Funct Mat, Jiangsu Key Lab New Power Batteries, Nanjing 210023, Peoples R China 2.Chinese Acad Sci, Guangzhou Inst Energy Convers, CAS Key Lab Renewable Energy, Guangdong Prov Key Lab New & Renewable Energy Res, Guangzhou 510640, Peoples R China
推荐引用方式 GB/T 7714	Wang, Jingchun,Li, Meng,Zhang, Jingzi,et al. Atom-Ratio-Conducted Tailoring of PdAu Bimetallic Nanocrystals with Distinctive Shapes and Dimensions for Boosting the ORR Performance[J]. CHEMISTRY-A EUROPEAN JOURNAL,2020,26(20):4480-4488.
APA	Wang, Jingchun.,Li, Meng.,Zhang, Jingzi.,Yan, Yawei.,Qiu, Xiaoyu.,...&Tang, Yawen.(2020).Atom-Ratio-Conducted Tailoring of PdAu Bimetallic Nanocrystals with Distinctive Shapes and Dimensions for Boosting the ORR Performance.CHEMISTRY-A EUROPEAN JOURNAL,26(20),4480-4488.
MLA	Wang, Jingchun,et al."Atom-Ratio-Conducted Tailoring of PdAu Bimetallic Nanocrystals with Distinctive Shapes and Dimensions for Boosting the ORR Performance".CHEMISTRY-A EUROPEAN JOURNAL 26.20(2020):4480-4488.