Pub Date : 2021-01-13DOI: 10.2174/2211544709999200915151156
Mina Mehregan
Due to energy demand concerns, diesel engines have gained much attraction recently compared to petrol engines because of their higher thermal efficiencies. However, they emit a larger amount of NOx emissions into the atmosphere. Nitrogen oxides are known as important ambient air pollutants that are responsible for health problems, forest damage, and buildings corrosion. Therefore, using emissions control strategies for diesel engines is required in order to have a cleaner environment. Urea-SCR (selective catalytic reduction of NOx by urea) after-treatment system is considered as one of the most efficient techniques available to reduce engine-out NOx emissions sufficiently. This review article discusses all the methods suggested to diminish nitrogen oxides emissions and then presents a comprehensive survey on developing urea-SCR unit -whether from catalyst development aspect or from injection system modification point of view- in diesel engines to meet strict emissions regulations.
{"title":"Urea-SCR System Development in the Mitigation of NOx Emissions from Diesel Engines – A Review Study","authors":"Mina Mehregan","doi":"10.2174/2211544709999200915151156","DOIUrl":"https://doi.org/10.2174/2211544709999200915151156","url":null,"abstract":"\u0000\u0000Due to energy demand concerns, diesel engines have gained much attraction\u0000recently compared to petrol engines because of their higher thermal efficiencies. However,\u0000they emit a larger amount of NOx emissions into the atmosphere.\u0000\u0000\u0000\u0000Nitrogen oxides are known as important ambient air pollutants that are responsible for\u0000health problems, forest damage, and buildings corrosion. Therefore, using emissions control strategies\u0000for diesel engines is required in order to have a cleaner environment. Urea-SCR (selective catalytic\u0000reduction of NOx by urea) after-treatment system is considered as one of the most efficient\u0000techniques available to reduce engine-out NOx emissions sufficiently.\u0000\u0000\u0000\u0000This review article discusses all the methods suggested to diminish nitrogen oxides\u0000emissions and then presents a comprehensive survey on developing urea-SCR unit -whether from\u0000catalyst development aspect or from injection system modification point of view- in diesel engines\u0000to meet strict emissions regulations.\u0000","PeriodicalId":10862,"journal":{"name":"Current Catalysis","volume":"28 13 1","pages":"102-110"},"PeriodicalIF":0.0,"publicationDate":"2021-01-13","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79259860","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 : 2020-12-01DOI: 10.2174/2211544709999201201120617
M. Ojha, R. Bansal
During the last two decades, horizon of research in the field of Nitrogen Heterocyclic Carbenes (NHC) has widened remarkably. NHCs have emerged as ubiquitous species having applications in a broad range of fields, including organocatalysis and organometallic chemistry. The NHC-induced non-asymmetric catalysis has turned out to be a really fruitful area of research in recent years. By manipulating structural features and selecting appropriate substituent groups, it has been possible to control the kinetic and thermodynamic stability of a wide range of NHCs, which can be tolerant to a variety of functional groups and can be used under mild conditions. NHCs are produced by different methods, such as deprotonation of Nalkylhetrocyclic salt, transmetallation, decarboxylation and electrochemical reduction. The NHCs have been used successfully as catalysts for a wide range of reactions making a large number of building blocks and other useful compounds accessible. Some of these reactions are: benzoin condensation, Stetter reaction, Michael reaction, esterification, activation of esters, activation of isocyanides, polymerization, different cycloaddition reactions, isomerization, etc. The present review includes all these examples published during the last 10 years, i.e. from 2010 till date. The NHCs have emerged as versatile and powerful organocatalysts in synthetic organic chemistry. They provide the synthetic strategy which does not burden the environment with metal pollutants and thus fit in the Green Chemistry.
{"title":"Application of Nitrogen Heterocyclic Carbenes in Organocatalysis","authors":"M. Ojha, R. Bansal","doi":"10.2174/2211544709999201201120617","DOIUrl":"https://doi.org/10.2174/2211544709999201201120617","url":null,"abstract":"\u0000\u0000 During the last two decades, horizon of research in the field of Nitrogen Heterocyclic Carbenes\u0000(NHC) has widened remarkably. NHCs have emerged as ubiquitous species having applications in a broad range of fields,\u0000including organocatalysis and organometallic chemistry. The NHC-induced non-asymmetric catalysis has turned out to be\u0000a really fruitful area of research in recent years.\u0000\u0000\u0000\u0000 By manipulating structural features and selecting appropriate substituent groups, it has been possible to control\u0000the kinetic and thermodynamic stability of a wide range of NHCs, which can be tolerant to a variety of functional groups\u0000and can be used under mild conditions. NHCs are produced by different methods, such as deprotonation of Nalkylhetrocyclic salt, transmetallation, decarboxylation and electrochemical reduction.\u0000\u0000\u0000\u0000The NHCs have been used successfully as catalysts for a wide range of reactions making a large number of building\u0000blocks and other useful compounds accessible. Some of these reactions are: benzoin condensation, Stetter reaction, Michael\u0000reaction, esterification, activation of esters, activation of isocyanides, polymerization, different cycloaddition reactions,\u0000isomerization, etc. The present review includes all these examples published during the last 10 years, i.e. from 2010 till date.\u0000\u0000\u0000\u0000 The NHCs have emerged as versatile and powerful organocatalysts in synthetic organic chemistry. They\u0000provide the synthetic strategy which does not burden the environment with metal pollutants and thus fit in the Green\u0000Chemistry. \u0000","PeriodicalId":10862,"journal":{"name":"Current Catalysis","volume":"10 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"85687408","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 : 2020-11-23DOI: 10.2174/2211544709999201123193710
A. Abu‐Dief, Wael Sabry Mohamed
Lack of environmental sustainability is a growing and pivotal matter due to the issues such as disturbances associated with biodiversity pollution and climate change. Pollutants are the major cause of these environmental threats in the atmosphere. At present, nano-based photocatalysts are at the forefront of the author's interest because of their promising potential as a green chemical-based compound, high catalytic activity, suitable and controllable surface area for wastewater treatment. Semiconductor materials on a nano-sized scale have electronic and optical properties depending on their building block size, which plays a vital role in developing smart materials that are well-efficient for simultaneously destroying harmful chemical contaminants from our environment. This makes these materials useful in many possible industrial applications, such as water purification. In this review, we have reported the most significant results contributing to the progress in the area of environmental hazardous pollutant detection and removal focused on water purification especially through photocatalysis to give readers an overview of the present research trends. Moreover, we have analyzed previous studies to indicate key principles of photocatalysis and provide guidelines that can be used to fabricate more efficient photocatalysts.
{"title":"Development of Nanomaterials as Photo Catalysts for Environmental Applications","authors":"A. Abu‐Dief, Wael Sabry Mohamed","doi":"10.2174/2211544709999201123193710","DOIUrl":"https://doi.org/10.2174/2211544709999201123193710","url":null,"abstract":"Lack of environmental sustainability is a growing and pivotal matter due to the issues such as disturbances associated with biodiversity pollution and climate change. Pollutants are the major cause of these environmental threats in the atmosphere. At present, nano-based photocatalysts are at the forefront of the author's interest because of their promising potential as a green chemical-based compound, high catalytic activity, suitable and controllable surface area for wastewater treatment. Semiconductor materials on a nano-sized scale have electronic and optical properties depending on their building block size, which plays a vital role in developing smart materials that are well-efficient for simultaneously destroying harmful chemical contaminants from our environment. This makes these materials useful in many possible industrial applications, such as water purification. In this review, we have reported the most significant results contributing to the progress in the area of environmental hazardous pollutant detection and removal focused on water purification especially through photocatalysis to give readers an overview of the present research trends. Moreover, we have analyzed previous studies to indicate key principles of photocatalysis and provide guidelines that can be used to fabricate more efficient photocatalysts.","PeriodicalId":10862,"journal":{"name":"Current Catalysis","volume":"54 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-11-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87417377","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 : 2020-10-23DOI: 10.2174/2211544709999201023145901
D. Minai-Tehrani
Hydrogen peroxide is normally formed during the metabolic pathway of the body. It is a toxic compound for vital cells, which can oxidize many macromolecules and cause damage in cells. Catalase can degrade H2O2 in cells and prevent cell injury. Cimetidine is a histamine H2 receptor blocker which decreases the release of stomach acid and is used for gastrointestinal diseases. Cimetidine inhibited catalase by mixed inhibition. In this study, the effect of temperature on the binding of cimetidine to human erythrocyte catalase was investigated and kinetic factors of the binding were determined. Dixon plot confirmed the mixed type of inhibition and determined the Ki of the drug. The maximum activity of the enzyme was observed at 30°C. Arrhenius plot demonstrated that the activation energy of the enzyme reaction in the absence and presence of cimetidine was about 4.7 and 8.13 kJ/mol, respectively. The temperature coefficient (Q30-40) was determined as about 1.11 and 1.09 in the absence and presence of cimetidine. Cimetidine was able to increase the activation energy of the reaction of catalase, which confirmed the inhibition of the enzyme based on the kinetic results.
{"title":"Alteration of Activation Energy of a Reaction in the Catalase of Human Erythrocyte by Cimetidine, an In vitro Thermokinetic Study","authors":"D. Minai-Tehrani","doi":"10.2174/2211544709999201023145901","DOIUrl":"https://doi.org/10.2174/2211544709999201023145901","url":null,"abstract":"\u0000\u0000Hydrogen peroxide is normally formed during the metabolic pathway of the\u0000body. It is a toxic compound for vital cells, which can oxidize many macromolecules and cause damage\u0000in cells. Catalase can degrade H2O2 in cells and prevent cell injury. Cimetidine is a histamine H2 receptor\u0000blocker which decreases the release of stomach acid and is used for gastrointestinal diseases. Cimetidine\u0000inhibited catalase by mixed inhibition.\u0000\u0000\u0000\u0000In this study, the effect of temperature on the binding of cimetidine to human erythrocyte\u0000catalase was investigated and kinetic factors of the binding were determined.\u0000\u0000\u0000\u0000Dixon plot confirmed the mixed type of inhibition and determined the Ki of the drug. The maximum\u0000activity of the enzyme was observed at 30°C. Arrhenius plot demonstrated that the activation\u0000energy of the enzyme reaction in the absence and presence of cimetidine was about 4.7 and 8.13 kJ/mol,\u0000respectively. The temperature coefficient (Q30-40) was determined as about 1.11 and 1.09 in the absence\u0000and presence of cimetidine.\u0000\u0000\u0000\u0000Cimetidine was able to increase the activation energy of the reaction of catalase, which\u0000confirmed the inhibition of the enzyme based on the kinetic results.\u0000","PeriodicalId":10862,"journal":{"name":"Current Catalysis","volume":"334 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79732633","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 : 2020-10-19DOI: 10.2174/2211544709999201019162020
C. Afsina, Mohan Neetha, Thaipparambil Aneeja, G. Anilkumar
Furan and its derivatives find wide-spread application as pharmaceuticals, pigments, dyes, brighteners, flavour & fragrance compounds and insecticides. They also exhibit antihyperglycemic, analgesic, anti-inflammatory, anti-bacterial, anti-fungal and anti-tumour activities. Silver catalysts are nowadays commonly used in organic synthesis due to the high oxidation potential and versatile nature of silver complexes. In this review, we summarise the recent advances in the synthesis and applications of furan moiety using silver catalysis and covers literature from 2015-2020.
{"title":"Recent Advances in the Silver Catalysed Synthesis of Furan and Its Applications","authors":"C. Afsina, Mohan Neetha, Thaipparambil Aneeja, G. Anilkumar","doi":"10.2174/2211544709999201019162020","DOIUrl":"https://doi.org/10.2174/2211544709999201019162020","url":null,"abstract":"\u0000\u0000Furan and its derivatives find wide-spread application as pharmaceuticals, pigments,\u0000dyes, brighteners, flavour & fragrance compounds and insecticides. They also exhibit antihyperglycemic,\u0000analgesic, anti-inflammatory, anti-bacterial, anti-fungal and anti-tumour activities.\u0000Silver catalysts are nowadays commonly used in organic synthesis due to the high oxidation\u0000potential and versatile nature of silver complexes. In this review, we summarise the recent advances\u0000in the synthesis and applications of furan moiety using silver catalysis and covers literature\u0000from 2015-2020.\u0000","PeriodicalId":10862,"journal":{"name":"Current Catalysis","volume":"191 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75811763","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 : 2020-10-05DOI: 10.2174/2211544709999201005170521
Gao-Ying Zhi, Xiao-Bing Li, Yun Wang, Li Han, Dong‐Hao Zhang
Benzyl cinnamate is widely used in many fragrance compounds. The traditional methods to obtain benzyl cinnamate, including chemical synthesis or extracted from leaves, have many drawbacks. Recently, lipase-catalyzed synthesis of benzyl cinnamate provides us a promising alternative due to its high catalytic efficiency, mild reaction conditions, and green and environmentally friendly process. In this work, the purpose is to investigate the kinetics and thermodynamics of enzymatic synthesis of benzyl cinnamate. The objective of the current study was to investigate the kinetics and thermodynamics of enzymatic synthesis of benzyl cinnamate. The results showed that the reaction followed Ping-Pong mechanism having substrate inhibition. Furthermore, the kinetic and thermodynamic parameters were estimated. The inhibition constant KiB decreased with temperature enhancement, implying that the inhibition of benzyl alcohol on lipase could be depressed at high temperature. Moreover, the activation energy of the first-step reaction (52.46 kJ/mol) was much higher than that of the second-step reaction (12.97 kJ/mol), demonstrating that the first-step reaction was the rate-limiting reaction. The esterification process was found to be endothermic, with enthalpy value (ΔH) of +55.7 kJ/mol and entropy value (ΔS) of +170.2 J/mol K, respectively. Based on the change of Gibbs free energy (ΔG), enzymatic esterification of cinnamic acid would change from nonspontaneous to spontaneous reaction when raising temperature to above 53ºC. These gained information could be utilized to optimize the biosynthesis of benzyl cinnamate.
{"title":"A New Approach to Synthesis of Benzyl Cinnamate: Kinetic and Thermodynamic Investigation","authors":"Gao-Ying Zhi, Xiao-Bing Li, Yun Wang, Li Han, Dong‐Hao Zhang","doi":"10.2174/2211544709999201005170521","DOIUrl":"https://doi.org/10.2174/2211544709999201005170521","url":null,"abstract":"\u0000\u0000Benzyl cinnamate is widely used in many fragrance compounds. The traditional methods to obtain benzyl cinnamate, including chemical synthesis or extracted from leaves, have many drawbacks. Recently, lipase-catalyzed synthesis of benzyl cinnamate provides us a promising alternative due to its high catalytic efficiency, mild reaction conditions, and green and environmentally friendly process. In this work, the purpose is to investigate the kinetics and thermodynamics of enzymatic synthesis of benzyl cinnamate.\u0000\u0000\u0000\u0000The objective of the current study was to investigate the kinetics and thermodynamics of enzymatic synthesis of benzyl cinnamate.\u0000\u0000\u0000\u0000The results showed that the reaction followed Ping-Pong mechanism having substrate inhibition. Furthermore, the kinetic and thermodynamic parameters were estimated. The inhibition constant KiB decreased with temperature enhancement, implying that the inhibition of benzyl alcohol on lipase could be depressed at high temperature. Moreover, the activation energy of the first-step reaction (52.46 kJ/mol) was much higher than that of the second-step reaction (12.97 kJ/mol), demonstrating that the first-step reaction was the rate-limiting reaction. The esterification process was found to be endothermic, with enthalpy value (ΔH) of +55.7 kJ/mol and entropy value (ΔS) of +170.2 J/mol K, respectively. Based on the change of Gibbs free energy (ΔG), enzymatic esterification of cinnamic acid would change from nonspontaneous to spontaneous reaction when raising temperature to above 53ºC.\u0000\u0000\u0000\u0000These gained information could be utilized to optimize the biosynthesis of benzyl cinnamate.\u0000","PeriodicalId":10862,"journal":{"name":"Current Catalysis","volume":"95 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80285947","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 : 2020-10-05DOI: 10.2174/2211544709999201005165234
B. M. Abu-Zied, S. Soliman, S. E. Abdellah
Increased environmental protection concerns urge more effort to develop new catalysts for the abetment of greenhouse gases. N2O is known as a powerful greenhouse gas. The literature review revealed that various catalysts have been developed for the direct decomposition of N2O. Special attention was given to the cobalt-based spinel oxides. However, there is a lack of information about the performance of the cadmium promoted spinels for N2O abetment. This paper addresses the nitrous oxide direct decomposition over a novel series of Cd- Co catalysts. These catalysts, with Cd/(Cd + Co) ratios 0.00-0.333, were prepared with the aid of the co-precipitation route, which is followed by calcination at 500 °C. Characterization of these catalysts was performed employing TGA-DTA, XRD, FTIR, N2 adsorption/desorption, and atomic absorption spectrophotometry. Phase analysis revealed the absence of a solid-state interaction between CdO and Co3O4. However, it was found that increasing the Cd/(Cd + Co) ratio is associated with continuous enhancement of the N2O decomposition activity. The activity was correlated with the presence of catalyst’s redox couples. Moreover, the role of the Cd presence in improving the activity was discussed. Finally, the activity performance change accompanying the calcination temperature raise was also investigated. Presence of cadmium has a positive effect on the N2O decomposition performance of Co3O4. Activity increased continuously with Cd/(Cd + Co) ratio increase over the examined range 0.083–0.333 structural, textural, and electronic roles of cadmium were proposed.
{"title":"Role of Cadmium Addition in Promoting the Direct N2O Decomposition of Co3O4 Spinel","authors":"B. M. Abu-Zied, S. Soliman, S. E. Abdellah","doi":"10.2174/2211544709999201005165234","DOIUrl":"https://doi.org/10.2174/2211544709999201005165234","url":null,"abstract":"\u0000\u0000Increased environmental protection concerns urge more effort to develop\u0000new catalysts for the abetment of greenhouse gases. N2O is known as a powerful greenhouse gas.\u0000The literature review revealed that various catalysts have been developed for the direct decomposition\u0000of N2O. Special attention was given to the cobalt-based spinel oxides. However, there is a\u0000lack of information about the performance of the cadmium promoted spinels for N2O abetment.\u0000\u0000\u0000\u0000This paper addresses the nitrous oxide direct decomposition over a novel series of Cd-\u0000Co catalysts.\u0000\u0000\u0000\u0000 These catalysts, with Cd/(Cd + Co) ratios 0.00-0.333, were prepared with the aid of the\u0000co-precipitation route, which is followed by calcination at 500 °C. Characterization of these catalysts\u0000was performed employing TGA-DTA, XRD, FTIR, N2 adsorption/desorption, and atomic absorption\u0000spectrophotometry.\u0000\u0000\u0000\u0000Phase analysis revealed the absence of a solid-state interaction between CdO and Co3O4.\u0000However, it was found that increasing the Cd/(Cd + Co) ratio is associated with continuous enhancement\u0000of the N2O decomposition activity. The activity was correlated with the presence of\u0000catalyst’s redox couples. Moreover, the role of the Cd presence in improving the activity was discussed.\u0000Finally, the activity performance change accompanying the calcination temperature raise\u0000was also investigated.\u0000\u0000\u0000\u0000Presence of cadmium has a positive effect on the N2O decomposition performance\u0000of Co3O4. Activity increased continuously with Cd/(Cd + Co) ratio increase over the examined\u0000range 0.083–0.333 structural, textural, and electronic roles of cadmium were proposed.\u0000","PeriodicalId":10862,"journal":{"name":"Current Catalysis","volume":"103 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-10-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80329636","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 : 2020-09-10DOI: 10.2174/2211544709999200420072505
V. Mordkovich, L. Sineva
The Fischer-Tropsch Synthesis (FTS) remains an important process for motor fuel production from CO and H2. The composition of the FTS products (hydrocarbon mixtures) depends on the properties of a catalyst and on the process conditions. The introduction of zeolites into catalytic systems can alter the molecular weight distribution paving the way to tailor-made fuels, as was revealed by recent research results produced in the laboratories worldwide. The AlO4 and SiO4 tetrahedrons, which constitute the zeolites, are able to transfer electrons and ions in a way, which makes water-zeolite interfaces capable of initiating active carbonium ions. It was shown in a number of works that the water-zeolite interface plays a key role in diverting the FTS from the classical route. This review gives a critical analysis of literature data on the role of water-zeolite interfaces on FTS cobalt catalysts and on the interactions of hydrophobic and hydrophilic zeolites with water.
{"title":"Water-Zeolite Interfaces for Controlling Reaction Routes in Fischer- Tropsch Synthesis of Alternative Fuels","authors":"V. Mordkovich, L. Sineva","doi":"10.2174/2211544709999200420072505","DOIUrl":"https://doi.org/10.2174/2211544709999200420072505","url":null,"abstract":"\u0000\u0000The Fischer-Tropsch Synthesis (FTS) remains an important process for motor\u0000fuel production from CO and H2. The composition of the FTS products (hydrocarbon mixtures) depends\u0000on the properties of a catalyst and on the process conditions.\u0000\u0000\u0000\u0000The introduction of zeolites into catalytic systems can alter the molecular weight distribution\u0000paving the way to tailor-made fuels, as was revealed by recent research results produced in the laboratories\u0000worldwide. The AlO4 and SiO4 tetrahedrons, which constitute the zeolites, are able to transfer\u0000electrons and ions in a way, which makes water-zeolite interfaces capable of initiating active carbonium\u0000ions. It was shown in a number of works that the water-zeolite interface plays a key role in diverting\u0000the FTS from the classical route.\u0000\u0000\u0000\u0000This review gives a critical analysis of literature data on the role of water-zeolite interfaces\u0000on FTS cobalt catalysts and on the interactions of hydrophobic and hydrophilic zeolites with water.\u0000","PeriodicalId":10862,"journal":{"name":"Current Catalysis","volume":"8 1","pages":"1-20"},"PeriodicalIF":0.0,"publicationDate":"2020-09-10","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"84751041","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}
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