Pub Date : 1992-08-01DOI: 10.1021/bk-1993-0523.ch028
A. Erdöhelyi, J. Cserényi, F. Solymosi
Study of the selectivity and efficacity of silica-supported Rb 2 MoO 4 and some divalent metal molybdates MgMoO 4 , ZnMoO 4 and MnMoO 4 for the partial oxidation of ethane by O 2 and N 2 O
{"title":"Partial oxidation of ethane over silica-supported molybdate catalysts","authors":"A. Erdöhelyi, J. Cserényi, F. Solymosi","doi":"10.1021/bk-1993-0523.ch028","DOIUrl":"https://doi.org/10.1021/bk-1993-0523.ch028","url":null,"abstract":"Study of the selectivity and efficacity of silica-supported Rb 2 MoO 4 and some divalent metal molybdates MgMoO 4 , ZnMoO 4 and MnMoO 4 for the partial oxidation of ethane by O 2 and N 2 O","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"315 1","pages":"1185-1193"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80092113","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1992-08-01DOI: 10.1021/bk-1993-0523.ch008
D. Wickham, D. Parker, G. N. Kastanas, M. Lazaga, B. Koel
Study of the interaction of CO, CO 2 , H 2 O, CH 3 OH and C 2 H 4 with oxygen adatoms on Au(111) single crystal surfaces. As a simple model reaction, the transient reaction kinetics of CO oxidation with adsorbed oxygen adatoms to form CO 2 over Au(111) single crystal is studied
{"title":"Reactivity of oxygen adatoms on the Au(111) surface","authors":"D. Wickham, D. Parker, G. N. Kastanas, M. Lazaga, B. Koel","doi":"10.1021/bk-1993-0523.ch008","DOIUrl":"https://doi.org/10.1021/bk-1993-0523.ch008","url":null,"abstract":"Study of the interaction of CO, CO 2 , H 2 O, CH 3 OH and C 2 H 4 with oxygen adatoms on Au(111) single crystal surfaces. As a simple model reaction, the transient reaction kinetics of CO oxidation with adsorbed oxygen adatoms to form CO 2 over Au(111) single crystal is studied","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"12 1","pages":"1034-1037"},"PeriodicalIF":0.0,"publicationDate":"1992-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"74410208","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1992-01-01DOI: 10.1021/bk-1993-0523.ch015
B. M. Reddy
Investigation of the suitability of SnO 2 as a support material to disperse V 2 O 5 . A series of V 2 O 5 /SnO 2 catalysts prepared were characterized by means of oxygen chemisorption, X-Ray diffraction, solid-state 51 V and 1 H NMR and ESR techniques in order to understand the nature of the dispersed V-oxide phase and the loading level at which the so-called monolayer formation attains completion
二氧化氮作为载体材料分散二氧化钒的适宜性研究。采用氧化学吸附、x射线衍射、固态51 V和1 H NMR和ESR技术对制备的一系列钒氧化物/二氧化钛催化剂进行了表征，以了解分散的钒氧化物相的性质以及所谓的单层形成完成的负载水平
{"title":"Structure and reactivity in tin oxide-supported vanadium oxide catalysts","authors":"B. M. Reddy","doi":"10.1021/bk-1993-0523.ch015","DOIUrl":"https://doi.org/10.1021/bk-1993-0523.ch015","url":null,"abstract":"Investigation of the suitability of SnO 2 as a support material to disperse V 2 O 5 . A series of V 2 O 5 /SnO 2 catalysts prepared were characterized by means of oxygen chemisorption, X-Ray diffraction, solid-state 51 V and 1 H NMR and ESR techniques in order to understand the nature of the dispersed V-oxide phase and the loading level at which the so-called monolayer formation attains completion","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"40 1","pages":"1251-1255"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"86286006","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1992-01-01DOI: 10.1021/bk-1993-0523.ch026
S. Driscoll, L. Zhang, U. Ozkan
Characterization of catalytic behaviour of MnMoO 4 catalysts promoted with either Li, Na or K in oxidative coupling of methane to CO, CO 2 , C 2 H 4 , C 2 H 6 and HCHO
{"title":"Oxidative coupling of methane over alkali-promoted simple molybdate catalysts","authors":"S. Driscoll, L. Zhang, U. Ozkan","doi":"10.1021/bk-1993-0523.ch026","DOIUrl":"https://doi.org/10.1021/bk-1993-0523.ch026","url":null,"abstract":"Characterization of catalytic behaviour of MnMoO 4 catalysts promoted with either Li, Na or K in oxidative coupling of methane to CO, CO 2 , C 2 H 4 , C 2 H 6 and HCHO","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"57 1","pages":"1165-1170"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"88936560","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1992-01-01DOI: 10.1021/bk-1993-0523.ch012
T. Okuhara, K. Inumaru, M. Misono
The crystal faces of (VO) 2 P 2 O 7 have different reactivities for butane oxidation to maleic anhydride (MA). The (100) face is selective for formation of MA, and the side faces, such as (001) are active for non selective oxidation to CO and CO 2 . The addition of H 3 PO 4 to vanadyl pyrophosphate enhances the selectivity to MA at high conversion levels, while the activities decreases
{"title":"Active crystal face of vanadyl pyrophosphate for selective oxidation of n-butane","authors":"T. Okuhara, K. Inumaru, M. Misono","doi":"10.1021/bk-1993-0523.ch012","DOIUrl":"https://doi.org/10.1021/bk-1993-0523.ch012","url":null,"abstract":"The crystal faces of (VO) 2 P 2 O 7 have different reactivities for butane oxidation to maleic anhydride (MA). The (100) face is selective for formation of MA, and the side faces, such as (001) are active for non selective oxidation to CO and CO 2 . The addition of H 3 PO 4 to vanadyl pyrophosphate enhances the selectivity to MA at high conversion levels, while the activities decreases","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"17 1","pages":"1222-1228"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75154741","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1992-01-01DOI: 10.1007/978-1-4684-8866-1_17
C. O'young
{"title":"Hydrothermal Synthesis of Manganese Oxides with Tunnel Structures","authors":"C. O'young","doi":"10.1007/978-1-4684-8866-1_17","DOIUrl":"https://doi.org/10.1007/978-1-4684-8866-1_17","url":null,"abstract":"","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"70 1","pages":"333-340"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"78940871","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1992-01-01DOI: 10.1021/bk-1993-0523.ch021
G. Bellussi, G. Centi, S. Perathoner, F. Trifiró
Characterization by XRD, NMR spectrometry, ESR analysis, UV-visible diffuse reflectance and IR spectrometry, of the nature of vanadium species in V-containing silicalite samples, using the reaction of oxidative dehydrogenation of propane to propylene; and correlation with catalytic behaviour
{"title":"Nature of vanadium species in V-containing silicalite and their behavior in oxidative dehydrogenation of propane","authors":"G. Bellussi, G. Centi, S. Perathoner, F. Trifiró","doi":"10.1021/bk-1993-0523.ch021","DOIUrl":"https://doi.org/10.1021/bk-1993-0523.ch021","url":null,"abstract":"Characterization by XRD, NMR spectrometry, ESR analysis, UV-visible diffuse reflectance and IR spectrometry, of the nature of vanadium species in V-containing silicalite samples, using the reaction of oxidative dehydrogenation of propane to propylene; and correlation with catalytic behaviour","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"12 5 1","pages":"1242-1250"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79891603","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Study of the influence of refinery lube manufacturing operations on basestock compositions and how these impact upon low temperature engine oil pumpability. Basestocks manufactured by the same pathway at different refineries have similar wax compositions and similar pumpability properties
{"title":"Lube manufacturing technology and engine oil pumpability","authors":"A. Rossi","doi":"10.1520/STP19596S","DOIUrl":"https://doi.org/10.1520/STP19596S","url":null,"abstract":"Study of the influence of refinery lube manufacturing operations on basestock compositions and how these impact upon low temperature engine oil pumpability. Basestocks manufactured by the same pathway at different refineries have similar wax compositions and similar pumpability properties","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"27 1","pages":"1322-1336"},"PeriodicalIF":0.0,"publicationDate":"1992-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87058976","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1991-01-01DOI: 10.1007/978-1-4615-3534-8_18
P. Wijnen, T. P. Beelen, R. V. Santen
{"title":"Molecular chemical aspects of silica gel formation","authors":"P. Wijnen, T. P. Beelen, R. V. Santen","doi":"10.1007/978-1-4615-3534-8_18","DOIUrl":"https://doi.org/10.1007/978-1-4615-3534-8_18","url":null,"abstract":"","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"10 1","pages":"341-369"},"PeriodicalIF":0.0,"publicationDate":"1991-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"72868319","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 1989-10-03DOI: 10.1021/BK-1989-0411.CH024
Douglas M. Smith, C. L. Glaves, D. Gallegos
The pore structures of two types of catalyst support material were studied: {gamma}-alumina and silica aerogel. The alumina samples were commercial catalyst supports made in 1/8 inch diameter pellet form by Harshaw Chemical. Aerogels were prepared by forming a gel in a two-step, base-catalyzed process using TEOS, followed by supercritical drying to form the aerogel. Two different aerogels were made, one undergoing the drying process immediately after gel formation (non-aged), and the other being aged in the gel state for two weeks in a basic solution of 0.1 molar NH{sub 4}OH at 323 K before being supercritically dried (aged). The aging process is believed to alter the aerogel pore structure. The pore size distribution of the alumina material was determined via NMR and compared to results obtained by mercury intrusion and nitrogen adsorption/condensation techniques. The pore size distributions of the two aerogel samples were measured via NMR and nitrogen adsorption/condensation; the material was too compressible for porosimetry.
研究了{γ}-氧化铝和二氧化硅气凝胶两种催化剂载体材料的孔结构。氧化铝样品是由Harshaw化学公司以1/8英寸直径的颗粒形式制成的商业催化剂支架。气凝胶的制备采用两步法，用TEOS进行碱催化形成凝胶，然后进行超临界干燥形成气凝胶。制备两种不同的气凝胶，一种在凝胶形成后立即进行干燥(未老化)，另一种在0.1 mol / l NH{sub 4}OH的碱性溶液中以凝胶状态在323 K下老化两周，然后进行超临界干燥(老化)。老化过程被认为改变了气凝胶的孔隙结构。通过核磁共振测定了氧化铝材料的孔径分布，并与汞侵入法和氮吸附/冷凝法所得结果进行了比较。通过核磁共振和氮气吸附/冷凝测定了两种气凝胶样品的孔径分布;这种材料的可压缩性太大，无法进行孔隙率测定。
{"title":"Pore structure characterization of catalyst supports via low field NMR","authors":"Douglas M. Smith, C. L. Glaves, D. Gallegos","doi":"10.1021/BK-1989-0411.CH024","DOIUrl":"https://doi.org/10.1021/BK-1989-0411.CH024","url":null,"abstract":"The pore structures of two types of catalyst support material were studied: {gamma}-alumina and silica aerogel. The alumina samples were commercial catalyst supports made in 1/8 inch diameter pellet form by Harshaw Chemical. Aerogels were prepared by forming a gel in a two-step, base-catalyzed process using TEOS, followed by supercritical drying to form the aerogel. Two different aerogels were made, one undergoing the drying process immediately after gel formation (non-aged), and the other being aged in the gel state for two weeks in a basic solution of 0.1 molar NH{sub 4}OH at 323 K before being supercritically dried (aged). The aging process is believed to alter the aerogel pore structure. The pore size distribution of the alumina material was determined via NMR and compared to results obtained by mercury intrusion and nitrogen adsorption/condensation techniques. The pore size distributions of the two aerogel samples were measured via NMR and nitrogen adsorption/condensation; the material was too compressible for porosimetry.","PeriodicalId":20402,"journal":{"name":"Preprints-American Chemical Society Division of Petroleum Chemistry","volume":"54 1","pages":"618-622"},"PeriodicalIF":0.0,"publicationDate":"1989-10-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80412930","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":0,"RegionCategory":"","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
京公网安备 11010802042870号
京ICP备2023020795号-1
扫码关注我们
求助内容：
应助结果提醒方式：