{"title":"Study of Gas-phase Reactions within the Modified Marcus Model. V. Arrhenius Equation for the Reaction CH3OH + CH3 → CH2OH + CH4","authors":"Igor Romanskii","doi":"10.37256/ujcs.1220232782","DOIUrl":"https://doi.org/10.37256/ujcs.1220232782","url":null,"abstract":"A theoretical study of the kinetics of the gas-phase reaction реакции СН3OH + СН3 → СН2OH + СН4 (energy calculation level UCCSD (T)/6-311G**//B3LYP/6-31+G**) in the temperature range 2000–10 K was performed. A discussion is carried out within the framework of a modified version of the Marcus model. The obtained results are used to analyze the Arrhenius equation in terms of the change in temperature of each of the parameters included in the expression for the reaction rate constant. In accordance with the change in the influence of various factors on the shape (slope and curvature) of the Arrhenius plot, the temperature intervals 2000 - 600, 600 - 80 and 80 - 10 K are distinguished.","PeriodicalId":494546,"journal":{"name":"Universal Journal of Catalysis Science","volume":"21 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-19","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135729950","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}
{"title":"The Importance of Sustainable Biomass Sources in the Development of Porous Carbonaceous Materials-Synthesis and Energy Applications: A Review","authors":"Erol Pehlivan, Şerife Parlayıcı","doi":"10.37256/ujcs.1220233335","DOIUrl":"https://doi.org/10.37256/ujcs.1220233335","url":null,"abstract":"In this review, a variety of planning methods for porous organic materials using different types of biomasses are compiled, and their functions are discussed. Improved pore architectures and variable surfaces were created in porous carbons manufactured from biomass. It is effective and sustainable to use biomass waste, which mostly consists of cellulose, hemicellulose, and lignin. They assemble microtextured structures around one another in multi-channel configurations. The possibility of incorporating porous carbon compounds derived from biomass is being explored due to their distinct surface and structure. These \"old type\" carbons, which are produced through direct pyrolysis or physical or chemical activation, represent the instantaneous usage of biomass. There has been a lot of research on the chemical activation of biomass to create extremely effective activated porous carbons for gas collection. They consist of a variety of small patterns, pore dispersions, and conductive spines and have adaptive physicochemical properties that permit their application as dynamic stage networks or electroactive materials. The structure of carbon-based materials obtained from biomass has the potential to improve electrochemical energy storage. Energy storage resources are required more frequently every day. Energy storage is essential to meet the energy demands resulting from the interruption of energy sources due to several circumstances. There are many uses for carbon materials, including the storage of energy, the filtration of water and air, and the storage of gases like carbon dioxide (CO2), nitrogen (N2), methane (CH4), and hydrogen (H2). In this study, the advantages of cellulose-based systems as well as the latest developments and methods for creating high-capacity electronics are highlighted.","PeriodicalId":494546,"journal":{"name":"Universal Journal of Catalysis Science","volume":"18 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135968182","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}
{"title":"H2 as Clean Energy for Sustainable Future","authors":"Sovann Khan, Veasna Soum","doi":"10.37256/ujcs.1220232208","DOIUrl":"https://doi.org/10.37256/ujcs.1220232208","url":null,"abstract":"H2 is considered a clean fuel used in Fuel cell technology for electricity generation with zero greenhouse gas (GHG) emission. The demand for H2 gas, typically for fuel cell electric vehicles (FCEVs), is increasing. However, the current H2 production relies on natural gas and coals related to carbon oxide gas emission, which gives back to global warming concerns. Low-carbon production processes are needed to contribute to the United Nation's sustainable development goals (SDGs). Water-splitting reaction using photocatalysis or electrocatalysis is a promising method for producing H2 from water, which is the earthabundant resource. These H2 production methods based on catalytic technologies require highly active catalyst materials with long-term stability. The development of non-conventional materials with consideration of nanostructure, multijunction, and defect engineering is explored to achieve highly active catalyst materials. This mini-review discusses a basic understanding of H2 production from water-splitting reactions via photocatalysis and electrocatalysis, with outstanding examples of recent works reported. Last part, we provide a short study on the H2 global market and policy in order to conclude the future direction of H2 energy.","PeriodicalId":494546,"journal":{"name":"Universal Journal of Catalysis Science","volume":"26 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-09-22","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"136060226","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}
{"title":"Publisher’s Note: Universal Journal of Catalysis Science—A New Open Access Journal","authors":"Hang Gao, Qiuyun Li, Bin Lin, Russell Li","doi":"10.37256/ujcs.1120232200","DOIUrl":"https://doi.org/10.37256/ujcs.1120232200","url":null,"abstract":"Catalysis is mainly the addition of catalysts to accelerate the catalytic reaction process. Catalysis is a common and important phenomenon in nature. Catalysis almost covers the whole field of chemical reaction. 90% of commercially produced chemicals involve catalysts at some stage in their production.","PeriodicalId":494546,"journal":{"name":"Universal Journal of Catalysis Science","volume":"7 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-03-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135135932","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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