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	Gold-palladium nanoalloys supported by graphene oxide and lamellar tio2 for direct synthesis of hydrogen peroxide
	Guo, Song1; Zhang, Shaohua1; Fang, Qihua1; Abroshan, Hadi2; Kim, Hyung J.3; Haruta, Masatake1; Li, Gao1
刊名	Acs applied materials & interfaces
	2018-11-28
卷号	10期号:47页码:40599-40607
关键词	Gold-palladium Graphene oxide Lamellar tio2 Hydrogen peroxide Dshp
ISSN号	1944-8244
DOI	10.1021/acsami.8b17342
通讯作者	Li, gao(gaoli@dicp.ac.cn)
英文摘要	Hybrid catalysts composed of gold-palladium nanoalloys that are sandwiched between layers of graphene oxide (go) and lamellar tio2 are synthesized via the deposition-reduction method. the resulting aupd catalysts with different compositions of metal and support are fully characterized by a series of techniques, including x-ray diffraction, scanning transmission electron microscopy, x-ray photoelectron spectroscopy, and inductively coupled plasma mass spectrometry. the catalysts are also optimized against au, pd, go, and tio2 contents and employed in the direct synthesis of hydrogen peroxide (dshp) from h-2 and o-2. the sandwich-like aupd nanoalloy comprising 1 wt % nanoparticle of an equimolar mixture of au and pd with 6 wt % go and 93 wt % tio2 supports shows a promising catalytic performance toward the dshp reaction with h2o2 productivity and selectivity of 5.50 mol h2o2 g(metal)(-1) h(-1) and 64%, respectively. the catalyst is found to be considerably more active than those reported in the literature. furthermore, the h2o2 selectivity of the catalyst is found to improve considerably to 88% when the tio2 support is pretreated by hno3. it is found that the perimeter sites of the interface of aupd alloy and tio2 are deemed as catalytically active sites for the dshp reactions and the acidic property of tio2 can retard the other overreactions and the decomposition of yielded h2o2. results of the present study may provide a design strategy for partially covered catalysts that are confined by 2d materials for selective reactions.
WOS关键词	OXYGEN REDUCTION ; CARBON NITRIDE ; CATALYSTS ; PD ; H2O2 ; H-2 ; NANOPARTICLES ; O-2 ; WATER ; SELECTIVITY
WOS研究方向	Science & Technology - Other Topics ; Materials Science
WOS类目	Nanoscience & Nanotechnology ; Materials Science, Multidisciplinary
语种	英语
出版者	AMER CHEMICAL SOC
WOS记录号	WOS:000451932800026
内容类型	期刊论文
URI标识	http://www.corc.org.cn/handle/1471x/2373040
专题	大连化学物理研究所
通讯作者	Li, Gao
作者单位	1.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Gold Catalysis Res Ctr, Dalian 116023, Peoples R China 2.Stanford Univ, Dept Chem Engn, SUNCAT Ctr Interface Sci & Catalysis, Stanford, CA 94305 USA 3.Carnegie Mellon Univ, Dept Chem, Pittsburgh, PA 15213 USA
推荐引用方式 GB/T 7714	Guo, Song,Zhang, Shaohua,Fang, Qihua,et al. Gold-palladium nanoalloys supported by graphene oxide and lamellar tio2 for direct synthesis of hydrogen peroxide[J]. Acs applied materials & interfaces,2018,10(47):40599-40607.
APA	Guo, Song.,Zhang, Shaohua.,Fang, Qihua.,Abroshan, Hadi.,Kim, Hyung J..,...&Li, Gao.(2018).Gold-palladium nanoalloys supported by graphene oxide and lamellar tio2 for direct synthesis of hydrogen peroxide.Acs applied materials & interfaces,10(47),40599-40607.
MLA	Guo, Song,et al."Gold-palladium nanoalloys supported by graphene oxide and lamellar tio2 for direct synthesis of hydrogen peroxide".Acs applied materials & interfaces 10.47(2018):40599-40607.

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