Probing the Interfacial Interaction in Layered-Carbon-Stabilized Iron Oxide Nanostructures: A Soft X-ray Spectroscopic Study

doi:10.1021/am5073996

CORC > 北京大学 > 化学与分子工程学院

	Probing the Interfacial Interaction in Layered-Carbon-Stabilized Iron Oxide Nanostructures: A Soft X-ray Spectroscopic Study
	Zhang Hui ; Liu Jinyin ; Zhao Guanqi ; Gao Yongjun ; Tyliszczak Tolek ; Glans Per-Anders ; Guo Jinghua ; Ma Ding ; Sun Xu-Hui ; Zhong Jun
刊名	acs applied materials interfaces
	2015
关键词	catalysts,interfacial interaction,iron oxide,layered carbon,magnetic property,soft X-ray spectroscopy
DOI	10.1021/am5073996
英文摘要	We have stabilized the iron oxide nanoparticles (NPs) of various sizes on layered carbon materials (Fe-oxide/C) that show excellent catalytic performance. From the characterization of X-ray absorption spectroscopy (XAS), X-ray emission spectroscopy (XES), scanning transmission X-ray microscopy (STXM) and X-ray magnetic circular dichroism spectroscopy (XMCD), a strong interfacial interaction in the Fe-oxide/C hybrids has been observed between the small iron oxide NPs and layered carbon in contrast to the weak interaction in the large iron oxide NPs. The interfacial interaction between the NPs and layered carbon is found to link with the improved catalytic performance. In addition, the Fe L-edge XMCD spectra show that the large iron oxide NPs are mainly γ-Fe2O3 with a strong ferromagnetic property, whereas the small iron oxide NPs with strong interfacial interaction are mainly α-Fe2O3 or amorphous Fe2O3 with a nonmagnetic property. The results strongly suggest that the interfacial interaction plays a key role for the catalytic performance, and the experimental findings may provide guidance toward rational design of high-performance catalysts.; http://gateway.webofknowledge.com/gateway/Gateway.cgi?GWVersion=2&SrcApp=PARTNER_APP&SrcAuth=LinksAMR&KeyUT=WOS:000353607100006&DestLinkType=FullRecord&DestApp=ALL_WOS&UsrCustomerID=8e1609b174ce4e31116a60747a720701 ; SCI(E); EI; PubMed; 3; ARTICLE; jguo@lbl.gov; Dma@pku.edu.cn; jzhong@suda.edu.cn; 15; 7863-8; 7
语种	英语
内容类型	期刊论文
源URL	[http://ir.pku.edu.cn/handle/20.500.11897/188156]
专题	化学与分子工程学院
推荐引用方式 GB/T 7714	Zhang Hui,Liu Jinyin,Zhao Guanqi,et al. Probing the Interfacial Interaction in Layered-Carbon-Stabilized Iron Oxide Nanostructures: A Soft X-ray Spectroscopic Study[J]. acs applied materials interfaces,2015.
APA	Zhang Hui.,Liu Jinyin.,Zhao Guanqi.,Gao Yongjun.,Tyliszczak Tolek.,...&Zhong Jun.(2015).Probing the Interfacial Interaction in Layered-Carbon-Stabilized Iron Oxide Nanostructures: A Soft X-ray Spectroscopic Study.acs applied materials interfaces.
MLA	Zhang Hui,et al."Probing the Interfacial Interaction in Layered-Carbon-Stabilized Iron Oxide Nanostructures: A Soft X-ray Spectroscopic Study".acs applied materials interfaces (2015).