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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
Corresponding AuthorLi, Gao(gaoli@dicp.ac.cn)
Keywordgold-palladium graphene oxide lamellar TiO2 hydrogen peroxide DSHP
Source PublicationACS APPLIED MATERIALS & INTERFACES
2018-11-28
ISSN1944-8244
DOI10.1021/acsami.8b17342
Volume10Issue:47Pages:40599-40607
Funding ProjectNational Natural Science Foundation of China[21601178] ; National Natural Science Foundation of China[21706256] ; Shanxi Province Hundred Talent Project
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanxi Province Hundred Talent Project ; Shanxi Province Hundred Talent Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanxi Province Hundred Talent Project ; Shanxi Province Hundred Talent Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanxi Province Hundred Talent Project ; Shanxi Province Hundred Talent Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanxi Province Hundred Talent Project ; Shanxi Province Hundred Talent Project
WOS SubjectNanoscience & Nanotechnology ; Materials Science, Multidisciplinary
WOS Research AreaScience & Technology - Other Topics ; Materials Science
WOS KeywordOXYGEN REDUCTION ; CARBON NITRIDE ; CATALYSTS ; PD ; H2O2 ; H-2 ; NANOPARTICLES ; O-2 ; WATER ; SELECTIVITY
AbstractHybrid 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.
Language英语
Funding OrganizationNational Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanxi Province Hundred Talent Project ; Shanxi Province Hundred Talent Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanxi Province Hundred Talent Project ; Shanxi Province Hundred Talent Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanxi Province Hundred Talent Project ; Shanxi Province Hundred Talent Project ; National Natural Science Foundation of China ; National Natural Science Foundation of China ; Shanxi Province Hundred Talent Project ; Shanxi Province Hundred Talent Project
WOS IDWOS:000451932800026
PublisherAMER CHEMICAL SOC
Citation statistics
Cited Times:1[WOS]   [WOS Record]     [Related Records in WOS]
Document Type期刊论文
Identifierhttp://cas-ir.dicp.ac.cn/handle/321008/166561
Collection中国科学院大连化学物理研究所
Corresponding AuthorLi, Gao
Affiliation1.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
Recommended Citation
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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