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Mapping Support Interactions in Copper Catalysts

文献类型：期刊论文

作者Chatterjee, Rishika1,2; Kuld, Sebastian1; van den Berg, Roy1,3; Chen, Aling4; Shen, Wenjie4; Christensen, Jakob Munkholt2; Jensen, Anker Degn2; Sehested, Jens1
刊名TOPICS IN CATALYSIS
出版日期2019-08-01
卷号62期号:7-11页码:649-659
关键词Strong metal support interactions (SMSI) Temperature Programmed Desorption of Hydrogen (H-2-TPD) Reactive frontal Chromatography by Nitrous oxide (N2O-RFC)
ISSN号1022-5528
DOI10.1007/s11244-019-01150-9
通讯作者Sehested, Jens(jss@topsoe.com)
英文摘要Intrinsic activity is often reported as a Turnover Frequency (TOF) of an active phase and is determined from an overall activity and a specific active surface area. The latter parameter is often determined by selective chemisorption techniques, but (strong) metal-support interactions, (S)MSI, between the metal and the carrier in an interplay with the nature of the probe molecules may distort the measurements. Here, a double-area-estimation approach is used for fast and accurate evaluation of (S)MSI effects in supported Cu catalysts: Firstly, baselines for the Temperature Programmed Desorption of Hydrogen (H-2-TPD) and Reactive Frontal Chromatography by Nitrous oxide (N2O-RFC) methods commonly used to titrate Cu areas were established by comparison with Brunauer-Emmett-Teller (BET) surface areas using a series of pure Cu catalysts. Pure unsupported Cu samples, free from support interactions, were used to determine the stoichiometries between the probe molecules, H-2 and N2O, and Cu surface atoms. This resulted in values of 2.08 +/- 0.14:1 (Cu:O) and 2.81 +/- 0.09:1 (Cu:H-2). Cu on a wide range of support materials were subsequently analyzed by H-2-TPD and N2O-RFC and benchmarked according to the unsupported Cu reference. This was done to study metal support interactions and increase the understanding of the nature of the interactions between Cu and different carriers.
WOS关键词TEMPERATURE-PROGRAMMED DESORPTION ; METHANOL SYNTHESIS CATALYSTS ; NITROUS-OXIDE ; SURFACE-AREA ; ATOMIC-HYDROGEN ; ADSORPTION ; ZNO ; CU/ZNO ; CU(111) ; OXYGEN
资助项目Villum Foundation V-SUSTAIN grant[9455]
WOS研究方向Chemistry
语种英语
WOS记录号WOS:000483701900008
出版者SPRINGER/PLENUM PUBLISHERS
资助机构Villum Foundation V-SUSTAIN grant ; Villum Foundation V-SUSTAIN grant ; Villum Foundation V-SUSTAIN grant ; Villum Foundation V-SUSTAIN grant ; Villum Foundation V-SUSTAIN grant ; Villum Foundation V-SUSTAIN grant ; Villum Foundation V-SUSTAIN grant ; Villum Foundation V-SUSTAIN grant
源URL[http://cas-ir.dicp.ac.cn/handle/321008/173081]  
专题大连化学物理研究所_中国科学院大连化学物理研究所
通讯作者Sehested, Jens
作者单位1.Haldor Topsoe Res Labs, Haldor Topsoes Alle 1, DK-2800 Lyngby, Denmark
2.Tech Univ Denmark, Dept Chem Engn, Bldg 229, DK-2800 Lyngby, Denmark
3.Univ Utrecht, Debye Inst Nanomat Sci, Inorgan Chem & Catalysis, Univ Weg 99, NL-3584 CG Utrecht, Netherlands
4.Chinese Acad Sci, Dalian Inst Chem Phys, State Key Lab Catalysis, Dalian 116023, Peoples R China
推荐引用方式
GB/T 7714		 Chatterjee, Rishika,Kuld, Sebastian,van den Berg, Roy,et al. Mapping Support Interactions in Copper Catalysts[J]. TOPICS IN CATALYSIS,2019,62(7-11):649-659.
APA Chatterjee, Rishika.,Kuld, Sebastian.,van den Berg, Roy.,Chen, Aling.,Shen, Wenjie.,...&Sehested, Jens.(2019).Mapping Support Interactions in Copper Catalysts.TOPICS IN CATALYSIS,62(7-11),649-659.
MLA Chatterjee, Rishika,et al."Mapping Support Interactions in Copper Catalysts".TOPICS IN CATALYSIS 62.7-11(2019):649-659.

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来源：大连化学物理研究所

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