Palladium single atoms supported by interwoven carbon nanotube and manganese oxide nanowire networks for enhanced electrocatalysis

doi:10.1039/c8ta09034c

CORC > 上海应用物理研究所 > 中国科学院上海应用物理研究所 > 中科院上海应用物理研究所2011-2017年

	Palladium single atoms supported by interwoven carbon nanotube and manganese oxide nanowire networks for enhanced electrocatalysis
	Xiang, WK ; Zhao, YH ; Jiang, Z ; Li, XP ; Zhang, H ; Sun, Y ; Ning, ZJ ; Du, FP ; Gao, P ; Qian, J
刊名	JOURNAL OF MATERIALS CHEMISTRY A
	2018
卷号	6 期号:46 页码:23366-23377
关键词	OXYGEN REDUCTION REACTION WATER OXIDATION METHANOL ELECTROOXIDATION MNO2 NANOSTRUCTURES REACTION CATALYSTS PD NANOPARTICLES ACTIVE-SITES CO OXIDATION EVOLUTION GRAPHENE
ISSN号	2050-7488
DOI	10.1039/c8ta09034c
文献子类	期刊论文
英文摘要	Advancement of electrocatalysts relies on the construction of both a highly efficient catalytic center and a highly conductive network support. Herein, we prepared a 3D interwoven structure with Pd atoms deposited on homogeneously bound MnO2 nanowires and carbon nanotubes (CNTs) (Pd/MnO2-CNT), allowing the combination of superior catalytic performance of atomic Pd incorporated in the metal oxide and the high conductivity of CNT. Using this nanocomposite, stable bifunctional oxygen reduction/evolution reaction (ORR/OER) was achieved. Pd/MnO2-CNT displayed a large Pd mass activity for ORR, which is two magnitudes higher than that of Pd/CNT and 5-fold higher than that of the state-of-the-art Pd-based electrocatalysts operated in alkaline medium. Application of this composite catalyst in Zn-air batteries generates significantly high efficiency and cycling stability. Experimental and theoretical studies revealed that MnO2 provided stronger electronic metal-support interaction than CNT. Pd single atoms doped in MnO2 work synergistically with the surrounding metal sites to activate molecular oxygen, and display optimized binding strength to reaction intermediates. Our strategy can be generalized to design new single atom electrocatalysts for numerous functionalities.
语种	英语
内容类型	期刊论文
源URL	[http://ir.sinap.ac.cn/handle/331007/31056]
专题	上海应用物理研究所_中科院上海应用物理研究所2011-2017年
作者单位	1.RIKEN SPring 8 Ctr, 1-1-1 Kouto, Sayo, Hyogo 6795148, Japan 2.Chinese Acad Sci, SARI, CAS Key Lab Low Carbon Convers Sci & Engn, Shanghai 201210, Peoples R China 3.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 4.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China 5.Kyushu Univ, Int Inst Carbon Neutral Energy Res WPI I2CNER, Nishi Ku, Motooka 744, Fukuoka, Fukuoka 8190395, Japan 6.Hokkaido Univ, Dept Chem, Fac Sci, Kita Ku, N10W8, Sapporo, Hokkaido 0600810, Japan 7.ShanghaiTech Univ, Sch Phys Sci & Technol, Shanghai 201210, Peoples R China
推荐引用方式 GB/T 7714	Xiang, WK,Zhao, YH,Jiang, Z,et al. Palladium single atoms supported by interwoven carbon nanotube and manganese oxide nanowire networks for enhanced electrocatalysis[J]. JOURNAL OF MATERIALS CHEMISTRY A,2018,6(46):23366-23377.
APA	Xiang, WK.,Zhao, YH.,Jiang, Z.,Li, XP.,Zhang, H.,...&Sun, YH.(2018).Palladium single atoms supported by interwoven carbon nanotube and manganese oxide nanowire networks for enhanced electrocatalysis.JOURNAL OF MATERIALS CHEMISTRY A,6(46),23366-23377.
MLA	Xiang, WK,et al."Palladium single atoms supported by interwoven carbon nanotube and manganese oxide nanowire networks for enhanced electrocatalysis".JOURNAL OF MATERIALS CHEMISTRY A 6.46(2018):23366-23377.