Journal of Molecular Catalysis(China)最新文献

Research on Properties of Sn and Si Doped AlPO4-5 Molecular Sieve and Its Hydrodesulfurization Reaction 锡硅掺杂AlPO4-5分子筛性能及加氢脱硫反应研究

Journal of Molecular Catalysis(China) Pub Date : 2020-10-01 DOI: 10.3724/SP.J.7103291365

化冰张, 厚祥孙

{"title":"Research on Properties of Sn and Si Doped AlPO4-5 Molecular Sieve and Its Hydrodesulfurization Reaction","authors":"化冰张, 厚祥孙","doi":"10.3724/SP.J.7103291365","DOIUrl":"https://doi.org/10.3724/SP.J.7103291365","url":null,"abstract":", Abstract ： The S A P O - 5 and S n S A P O - 5 molecular sieves were successfully prepared by directly adding Si and Sn'+ sources into the gel. The physical and chemical jiroperties of molecular sieves were investigated by XRI), low tem perature N : physical adsorption, S E M , N M R , Py-IR and With the increase of Sn content, the crrstal surface of S n S A P O - 5 is smoother and the appearance is more regular hexagonal prisms. The Sn and Si are more con-cenlrated on the surface of molecular sieves. In addition, the framework Al is replaced by Sn 2+, causing defects in the framework, im!)alance of cliarges and more acidic sites. The molecular sieves were used to modify tlie N i W cata lyst, and dihenzotliiophene ( D B T ) in the simulated oil was used as a prol)e to evaluate the H D S performance of their modified hydrogenation catalysts. The addition of S n S A P O - 5 in the catalyst introduces more acidic* sites, im proves the interaction between support and active metals, promotes the suliidation of active metals, and forms more metal active phases, thereby the hydrodesulfurization capacity of the N i W catalyst was improved. Therefore, the catalyst modified by S n S A P O - 5 has better H D S activity than other catalysts, and has better application prospect.","PeriodicalId":412338,"journal":{"name":"Journal of Molecular Catalysis(China)","volume":"8 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"123888182","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}

引用次数: 0

Crystallization of SAPO Series Silicoaluminophosphate Zeolites and Effect of Their Composite Catalysts on CO Hydrogenation SAPO系列磷酸硅铝沸石结晶及其复合催化剂对CO加氢的影响

Journal of Molecular Catalysis(China) Pub Date : 2020-10-01 DOI: 10.3724/SP.J.7103291364

贾高鹏, 高玉集, 赵晨曦, 田红美, 刘振新

{"title":"Crystallization of SAPO Series Silicoaluminophosphate Zeolites and Effect of Their Composite Catalysts on CO Hydrogenation","authors":"贾高鹏, 高玉集, 赵晨曦, 田红美, 刘振新","doi":"10.3724/SP.J.7103291364","DOIUrl":"https://doi.org/10.3724/SP.J.7103291364","url":null,"abstract":"： The effects of mechanical stirring, ingredient composition and ciystallization parameters on hvclrothermal synthesis of S A P O - 3 4 and S A P O - 5 silicoaluminophosphate zeolites were investigated. The effects of granule-mixing process and powder-grinding process on the preparation of \"silicoaluminophosphate zeolite/spiner' composite cata lysts were investigated. Compared with S A P O - 3 4 zeolite, S A P O - 5 zeolite ciystals exhibited stronger tolerance to m e chanical action. X R D , physical adsorption, F E S E M and E D S were em])loyed to investigate the structure and tex-ture features of the materials. The catalytic performance of four composite catalysts for C O hydrogenation was c o m pared. The sequence of phases which can make a composite catalyst more suppress C —— C coupling and produce more light hydrocaibons is ： S A P O - 3 4 > S A P O - 5 > tlZ n A l C ^ 0 4，， spinel phase. The sequence of phases that can mak e a composite catalyst have higher C O hydrogenation activity ( i.e., C O conversion) is: “ZnAlCi.04” spinel phase > S A P O - 3 4","PeriodicalId":412338,"journal":{"name":"Journal of Molecular Catalysis(China)","volume":"24 2 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"121323396","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}

引用次数: 0

Application of Manganese Oxide Octahedral Molecular Sieves(OMS-2)in Clean Synthesis of Organic Compounds 氧化锰八面体分子筛(OMS-2)在有机化合物清洁合成中的应用

Journal of Molecular Catalysis(China) Pub Date : 2020-10-01 DOI: 10.3724/SP.J.7103291367

赵培庆, 毕秀茹

引用次数: 0

Urea-formaldehyde Resin Derived P-doped Tungsten Carbide on N-carbon Sheets(P-W2C@NC)as All pH HER Catalyst 脲醛树脂衍生的n -碳片p掺杂碳化钨(P-W2C@NC)作为全pH HER催化剂

Journal of Molecular Catalysis(China) Pub Date : 2020-10-01 DOI: 10.3724/SP.J.7103291366

韩苗苗

{"title":"Urea-formaldehyde Resin Derived P-doped Tungsten Carbide on N-carbon Sheets(P-W2C@NC)as All pH HER Catalyst","authors":"韩苗苗","doi":"10.3724/SP.J.7103291366","DOIUrl":"https://doi.org/10.3724/SP.J.7103291366","url":null,"abstract":"： Tungsten carbide has attracted extensive attention in the field of electrocatalytic hydrogen evolution due to its uni(|ue Pt like electronic structure and catalytic performance. He*teroatom doping and the constmction of nano materials with high specific suiface area are important strategies to further improve their propeilies. In this study, the heteroatom doped tungsten carbide with high specific surface area was prepared by controlled carbonization of u-rea formaldehyde resin with rich polar func tional groups as the substrate and polyoxonietalate clusters uniformly sup ported on its branched chain skeleton ( P - W - , C @ N C ) all j)H hydrogen evolution catalyst. The B K T specific surface area of the material is 136 • g _l. X R D , X P S , S E M and T E M results show that the catalyst is composed of tung sten carbide nanoparticles with phosphorus eloping and a thin nitrogen doped carbon layer coated oil the surface of tungsten carl)ide particles. In 0.5 mol/L sulfuric acid, 1 mol/L potassium hydroxide and 0.1 niol/L sulfuric acid buffer solution, the current density of 10 m A • c m \" 2 can I)e achieved only by over potential of 83, 63 and 179 m V respectively, and this catalyst have long-term catalytic stability.","PeriodicalId":412338,"journal":{"name":"Journal of Molecular Catalysis(China)","volume":"42 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"125588989","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}

引用次数: 0

Research Progress of Composite Metal Oxide Catalysts for the Oxidation of Glycerol to Acrylic Acid 甘油氧化制丙烯酸复合金属氧化物催化剂的研究进展

Journal of Molecular Catalysis(China) Pub Date : 2020-10-01 DOI: 10.3724/SP.J.7103291369

三三于, 自轩卢, 双明李

{"title":"Research Progress of Composite Metal Oxide Catalysts for the Oxidation of Glycerol to Acrylic Acid","authors":"三三于, 自轩卢, 双明李","doi":"10.3724/SP.J.7103291369","DOIUrl":"https://doi.org/10.3724/SP.J.7103291369","url":null,"abstract":"： With the shortage of fossil fuels and the environmental problems caused by their utilization, renewable biomass resources have gradually become an important source for the production of fuel and chemicals. In recent years, as the main by-product of biodiesel production, glycerol has attracted widespread attention. The utilization of glycerol to produce high value-added products and the development of relevant conversion technologies have also be come a hot spot for scholars at h o m e and abroad. A m o n g m a n y conversion technologies, the selective oxidation of glycerin to acrylic acid has shown broad development prospects. It has important economic and social significance to study the reaction and especially the catalyst. This article summarizes the current research status of composite metal oxide catalysts for the selective oxidation of glycerol to aciylic acid. The cuiTent types of catalytic systems used in the reaction and the understanding of the catalytic reaction mechanism of glycerol oxidation to aciylic acid are brief ly introduced. Moreover, the existing problems and future prospects are also analyzed and expected.","PeriodicalId":412338,"journal":{"name":"Journal of Molecular Catalysis(China)","volume":"3 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2020-10-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"131334206","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}

引用次数: 0

Journal of Molecular Catalysis(China) Pub Date : 2020-10-01 DOI: 10.3724/sp.j.7103291370

分子催化》编辑部《

引用次数: 0

Efficient Asymmetric Hydrogenation ofα-Ketoesters Catalyzed by Cinchona Alkaloid and Ionic Liquid Co-stabilized Pt Nanoparticles 金鸡纳生物碱和离子液体共稳定铂纳米粒子催化α-酮酯的高效不对称加氢反应

Journal of Molecular Catalysis(China) Pub Date : 2020-06-01 DOI: 10.3724/SP.J.7102411458

洪梅成, 诗佳陈, 兴玲曾, 江伟谭, 洪会贺, 和雁蒋

引用次数: 0

Research Progress of Nanogold Particles-Enzyme Biohybrid 纳米金颗粒-酶生物杂化研究进展

Journal of Molecular Catalysis(China) Pub Date : 2020-06-01 DOI: 10.3724/sp.j.7102411463

青云刘, 嘉英辛, 立瑞孙, 春谷夏, 艳王

引用次数: 0

Research Progress of Vegetable Oil Hydrogenation Catalyst 植物油加氢催化剂的研究进展

Journal of Molecular Catalysis(China) Pub Date : 2020-06-01 DOI: 10.3724/sp.j.7102411462

婷婷谷, 凌军丑, 焕玲宋

引用次数: 0

《分子催化》征稿启事《分子催化》征稿启事

Journal of Molecular Catalysis(China) Pub Date : 2020-04-01 DOI: 10.3724/sp.j.7102727942

引用次数: 0