Pub Date : 2023-10-20DOI: 10.2174/0124055204268107231004044742
Adewale George Adeniyi, Sulyman A. Abdulkareem, Kingsley O. Iwuozor, Ebuka Chizitere Emenike, Comfort A. Adeyanju, Maryam T. Abdulkareem, Maroof O. Omisore
In this study, the pods of Prospopis Africana were thermochemically converted into biochar and combined with polystyrene resin in varying proportions to form composites The composites were then characterized to determine their characteristics using Fourier transform infrared spectroscopy (FTIR), a Scanning electron microscope coupled with the energy dispersive X-ray Spectrophotometer (SEM-EDX), and a Differential scanning calorimeter (DSC). The FTIR analysis confirmed the changing or shifting of several peaks in the polystyrene resin and biochar samples. The hardness test showed that incorporating the Prosopis africana biochar into the solvated polystyrene matrix reduced the latter's hardness and reduced the impact value. SEM analysis showed that the biochar was firmly embedded in the polystyrene matrix, showing good adhesion between the matrix and the filler. This study has demonstrated that composites produced from Prosopis africana biochar filler and polystyrene resin matrix could be used as adsorbents and in the fabrication of materials requiring good electrical and thermal properties.
{"title":"Preparation and properties of biocomposite prepared from waste polystyrene and Prospopis africana biochar","authors":"Adewale George Adeniyi, Sulyman A. Abdulkareem, Kingsley O. Iwuozor, Ebuka Chizitere Emenike, Comfort A. Adeyanju, Maryam T. Abdulkareem, Maroof O. Omisore","doi":"10.2174/0124055204268107231004044742","DOIUrl":"https://doi.org/10.2174/0124055204268107231004044742","url":null,"abstract":"In this study, the pods of Prospopis Africana were thermochemically converted into biochar and combined with polystyrene resin in varying proportions to form composites The composites were then characterized to determine their characteristics using Fourier transform infrared spectroscopy (FTIR), a Scanning electron microscope coupled with the energy dispersive X-ray Spectrophotometer (SEM-EDX), and a Differential scanning calorimeter (DSC). The FTIR analysis confirmed the changing or shifting of several peaks in the polystyrene resin and biochar samples. The hardness test showed that incorporating the Prosopis africana biochar into the solvated polystyrene matrix reduced the latter's hardness and reduced the impact value. SEM analysis showed that the biochar was firmly embedded in the polystyrene matrix, showing good adhesion between the matrix and the filler. This study has demonstrated that composites produced from Prosopis africana biochar filler and polystyrene resin matrix could be used as adsorbents and in the fabrication of materials requiring good electrical and thermal properties.","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":"1 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-10-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135618410","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}
Abstract: Landfill leachate contains organic compounds like amines, ketones, carboxylic acid, alcohols, aldehydes, phenols, phosphates and inorganic pollutants such as ammonia, phosphorous, sulphate, emerging contaminants like per-and polyfluoroalkyl substances (PFAS) and also the toxic heavy metals like Mn, Cd, Pb, Fe, Ni, Zn and As. In young landfill leachate, the concentration of volatile acid and simply degraded organic matter is high while pH is low. However, in mature landfills, there is more leachate production with high pH. The age of landfill and determination of parameters like BOD, COD, COD/BOD ratio are important to know the appropriate treatment methods. Physicochemical, biological and combined methods are the most reported landfill leachate treatment methods. Advanced oxidation process, adsorption, coagulation-flocculation, bioremediation, phytoremediation, bioreactor, membrane process and air striping are some of the common categories of effective treatment of landfill leachate. For better apprehension, it has been reviewed that treatment efficiencies of different kinds of leachate depend on their composition and method adopted. Studies related to the removal of organic matter and heavy metals are predominant which reported excellent removal efficiency ranging from 80-100%. In addition, physical parameters like color and turbidity can also be removed effectively using appropriate treatment methods. The present article deals with a concise review of existing literature on sustainable landfill leachate treatment technologies which include physical, chemical, biological and combined techniques.
{"title":"Technologies for Treatment of Landfill Leachate: A Brief Review","authors":"Barshabaisalini Parida, Aditya Kishore Dash, Akshaya Kumar Verma","doi":"10.2174/0124055204276847231013040437","DOIUrl":"https://doi.org/10.2174/0124055204276847231013040437","url":null,"abstract":"Abstract: Landfill leachate contains organic compounds like amines, ketones, carboxylic acid, alcohols, aldehydes, phenols, phosphates and inorganic pollutants such as ammonia, phosphorous, sulphate, emerging contaminants like per-and polyfluoroalkyl substances (PFAS) and also the toxic heavy metals like Mn, Cd, Pb, Fe, Ni, Zn and As. In young landfill leachate, the concentration of volatile acid and simply degraded organic matter is high while pH is low. However, in mature landfills, there is more leachate production with high pH. The age of landfill and determination of parameters like BOD, COD, COD/BOD ratio are important to know the appropriate treatment methods. Physicochemical, biological and combined methods are the most reported landfill leachate treatment methods. Advanced oxidation process, adsorption, coagulation-flocculation, bioremediation, phytoremediation, bioreactor, membrane process and air striping are some of the common categories of effective treatment of landfill leachate. For better apprehension, it has been reviewed that treatment efficiencies of different kinds of leachate depend on their composition and method adopted. Studies related to the removal of organic matter and heavy metals are predominant which reported excellent removal efficiency ranging from 80-100%. In addition, physical parameters like color and turbidity can also be removed effectively using appropriate treatment methods. The present article deals with a concise review of existing literature on sustainable landfill leachate treatment technologies which include physical, chemical, biological and combined techniques.","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":"8 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":"135780123","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 : 2023-08-30DOI: 10.2174/2405520416666230830125120
Siti Zafirah Zainal Abidin, Nora Aishah Ahmad Shaharuddın
The exponential concern about environmental concerns has heavily driven the development of green technology. In light of these needs, Deep Eutectic Solvent (DES) emerged as a green solvent and additive due to its minimal toxicity and volatility, biodegradability, biocompatibility, simplicity of synthesis, high yields and purity, and the availability of its precursors. This review is intended to summarise and discuss polymer electrolytes based on DES for better insight into the potential of replacing conventional organic solvents or ionic liquids for energy storage applications in the aspect of their electrical and structural properties. Therefore, an examination of dielectric studies is conducted as they hold significance in establishing a correlation between the rise in ionic conductivity and the augmentation of freely movable ions, thereby highlighting the importance of investigating the dielectric properties of an electrolyte. Besides, XRD and morphological studies in this work can show how ionic conductivities can influence the size of pores in DES-based polymer electrolytes.
{"title":"Ionıc Conductıvıty, Dıelectrıc, And Structural Insıghts Of Deep Eutectıc Solvent-Based Polymer Electrolyte: A Revıew","authors":"Siti Zafirah Zainal Abidin, Nora Aishah Ahmad Shaharuddın","doi":"10.2174/2405520416666230830125120","DOIUrl":"https://doi.org/10.2174/2405520416666230830125120","url":null,"abstract":"\u0000\u0000The exponential concern about environmental concerns has heavily driven the development of green technology. In light of these needs, Deep Eutectic Solvent (DES) emerged as a green solvent and additive due to its minimal toxicity and volatility, biodegradability, biocompatibility, simplicity of synthesis, high yields and purity, and the availability of its precursors. This review is intended to summarise and discuss polymer electrolytes based on DES for better insight into the potential of replacing conventional organic solvents or ionic liquids for energy storage applications in the aspect of their electrical and structural properties. Therefore, an examination of dielectric studies is conducted as they hold significance in establishing a correlation between the rise in ionic conductivity and the augmentation of freely movable ions, thereby highlighting the importance of investigating the dielectric properties of an electrolyte. Besides, XRD and morphological studies in this work can show how ionic conductivities can influence the size of pores in DES-based polymer electrolytes.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"45674020","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}
Purple tea variety tea is a kind of special tea germplasm resource, which attracts attention due to its rich anthocyanins, unique leaf color and health care. This study clarified characteristic volatile components among different tea categories made from Kenya's purple tea variety. As raw materials, one bud and two or three leaves of Kenya purple tea variety(TRFK306/1) were utilized. Then, the fresh tea leaves were processed into green tea(PG)、white tea(PW) and black tea(PB) based on different manufacturing processes. Volatile compounds in different categories of tea were detected and analyzed qualitatively and quantitatively by Head Space-Solid Phase Micro Extractions-Gas Chromatography-Mass Spectrometry(HS-SPEM-GC-MS), in combination with principal component analysis(PCA), partial least squares(PLS)analysis. Moreover, variance verification and tea sensory evaluation analysis were also conducted to explore characteristic metabolites. The result showed that 45 kinds of volatile components were identified in green and black tea, and 38 kinds were identified in white tea. The volatile components could be divided into six categories, including alcohols, ketones, aldehydes, esters, hydrocarbons and nitrogen-containing compounds. The number of volatile components among teas is 5(PG_vs_PB), 6(PG_vs_PW), and 9(PW_vs_PB), respectively. There was a significant difference between PB and PW in the first principal component(R2X1=0.571), and PG was in between. It was found by PLS model analysis that there were 12 potential characteristic components with variable importance factor (VIP) greater than 1.0. The result showed that trans-β-Ocimene, nonanal and 6-Methyl-5-heptene-2-one as characteristic volatile components in PG, and β-ionone and trans-geraniol were characteristic aroma components of white tea and black tea, respectively.
{"title":"Comparative Study of Manufacturing Process Differentiation of Volatile Components in Kenya Purple Tea Variety TRFK 306/1","authors":"Liewei Cai, Ziwei Zhou, Shi-zhong Zheng, Qingyang Wu","doi":"10.2174/2405520416666230816091503","DOIUrl":"https://doi.org/10.2174/2405520416666230816091503","url":null,"abstract":"\u0000\u0000Purple tea variety tea is a kind of special tea germplasm resource, which attracts attention due to its rich anthocyanins, unique leaf color and health care.\u0000\u0000\u0000\u0000This study clarified characteristic volatile components among different tea categories made from Kenya's purple tea variety. As raw materials, one bud and two or three leaves of Kenya purple tea variety(TRFK306/1) were utilized. Then, the fresh tea leaves were processed into green tea(PG)、white tea(PW) and black tea(PB) based on different manufacturing processes. Volatile compounds in different categories of tea were detected and analyzed qualitatively and quantitatively by Head Space-Solid Phase Micro Extractions-Gas Chromatography-Mass Spectrometry(HS-SPEM-GC-MS), in combination with principal component analysis(PCA), partial least squares(PLS)analysis. Moreover, variance verification and tea sensory evaluation analysis were also conducted to explore characteristic metabolites.\u0000\u0000\u0000\u0000The result showed that 45 kinds of volatile components were identified in green and black tea, and 38 kinds were identified in white tea. The volatile components could be divided into six categories, including alcohols, ketones, aldehydes, esters, hydrocarbons and nitrogen-containing compounds. The number of volatile components among teas is 5(PG_vs_PB), 6(PG_vs_PW), and 9(PW_vs_PB), respectively. There was a significant difference between PB and PW in the first principal component(R2X1=0.571), and PG was in between. It was found by PLS model analysis that there were 12 potential characteristic components with variable importance factor (VIP) greater than 1.0.\u0000\u0000\u0000\u0000The result showed that trans-β-Ocimene, nonanal and 6-Methyl-5-heptene-2-one as characteristic volatile components in PG, and β-ionone and trans-geraniol were characteristic aroma components of white tea and black tea, respectively.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"49227393","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 : 2023-08-15DOI: 10.2174/2405520416666230815124126
M. Safari, Ali Moshfegh Haghighi, M. Torkian
Electrowetting has become one of the most widely used phenomena for utilizing miniature contents of liquids on surfaces. Electrowetting is an effective way to modify the droplet’s form with an electrical field. In this work, we will review some basics of electrowetting fundamentals and details of electrowetting on dielectric (EWOD) structures and materials. The principle of electrowetting liquid lenses and their particular configurations have been demonstrated. It should be noted that electrowetting lenses are better for commercial use because they use an electrical drive instead of a mechanical approach. After a brief look at the simulation methods, the electrowetting lens and the COMSOL simulation of a model are focused for this sort of electrowetting application. Some crucial criteria are compared to distinguish the appropriate situation and materials.
{"title":"Fundamentals and Simulation of Electrowetting: Focus on Electrowetting Lens","authors":"M. Safari, Ali Moshfegh Haghighi, M. Torkian","doi":"10.2174/2405520416666230815124126","DOIUrl":"https://doi.org/10.2174/2405520416666230815124126","url":null,"abstract":"\u0000\u0000Electrowetting has become one of the most widely used phenomena for utilizing miniature contents of liquids on surfaces.\u0000\u0000\u0000\u0000Electrowetting is an effective way to modify the droplet’s form with an electrical field. In this work, we will review some basics of electrowetting fundamentals and details of electrowetting on dielectric (EWOD) structures and materials. The principle of electrowetting liquid lenses and their particular configurations have been demonstrated.\u0000\u0000\u0000\u0000It should be noted that electrowetting lenses are better for commercial use because they use an electrical drive instead of a mechanical approach.\u0000\u0000\u0000\u0000After a brief look at the simulation methods, the electrowetting lens and the COMSOL simulation of a model are focused for this sort of electrowetting application. Some crucial criteria are compared to distinguish the appropriate situation and materials.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"43751930","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 : 2023-08-15DOI: 10.2174/2405520416666230815124144
A. Ali, Nurul Infaza Talalah Ramli, N. H. Hussin, Mohamad Fariz Mohamad Taib, O. H. Hassan
A promising Zn-Ni-Co mixed transition metal oxide was successfully synthesized by means of the sol-gel route and its super capacitive behavior was studied. The structural, morphology, and functional groups were deduced via XRD, SEM, EDX, and FTIR analysis. The super capacitive performance of the hybrid and ternary mixed transition metal oxides was executed through a three-electrode system, in a 2M KOH electrolyte. The specific capacitance of Zn-Ni-Co O was reckoned to be 415 Fg-1 at 50 mVs-1, thrice as much as the specific capacitance of ZnCo2O4 hybrid transition metal oxide (139 Fg-1). The synergistic effects benefited from multiple metal constituents and low activation energy for electron transportation plays an important role in boosting the electrochemical performance. The obtained results proved that Zn-Ni-Co O ternary composite has a promising future as an alternative for supercapacitor electrodes.
{"title":"Unravelling the Supercapacitive Potential of Zn-Ni-Co Mixed Transition Metal Oxide","authors":"A. Ali, Nurul Infaza Talalah Ramli, N. H. Hussin, Mohamad Fariz Mohamad Taib, O. H. Hassan","doi":"10.2174/2405520416666230815124144","DOIUrl":"https://doi.org/10.2174/2405520416666230815124144","url":null,"abstract":"\u0000\u0000A promising Zn-Ni-Co mixed transition metal oxide was successfully synthesized by means of the sol-gel route and its super capacitive behavior was studied.\u0000\u0000\u0000\u0000The structural, morphology, and functional groups were deduced via XRD, SEM, EDX, and FTIR analysis. The super capacitive performance of the hybrid and ternary mixed transition metal oxides was executed through a three-electrode system, in a 2M KOH electrolyte.\u0000\u0000\u0000\u0000The specific capacitance of Zn-Ni-Co O was reckoned to be 415 Fg-1 at 50 mVs-1, thrice as much as the specific capacitance of ZnCo2O4 hybrid transition metal oxide (139 Fg-1). The synergistic effects benefited from multiple metal constituents and low activation energy for electron transportation plays an important role in boosting the electrochemical performance.\u0000\u0000\u0000\u0000The obtained results proved that Zn-Ni-Co O ternary composite has a promising future as an alternative for supercapacitor electrodes.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":"1 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"41421430","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 : 2023-08-15DOI: 10.2174/2405520416666230815124135
Selvaraj Stalin, S. Sriharini, S. S. Bharathy
The present study aims to understand the membrane interactions of three different antibiotics widely used for non-specific viral diseases. The dose-dependent membrane interactions of the selected antibiotics were elucidated using octanol:water partition coefficient and hemolysis assay Our octanol:water partition coefficient experiments indicated that among the three antibiotics (Azithromycin, Erythromycin, and Amoxicillin), azithromycin and erythromycin were more hydrophobic compared to amoxicillin. This finding also correlated with hypotonic hemolysis assay experiments where the membrane stabilization effects of both azithromycin and erythromycin were reduced in a dose-dependent manner compared to amoxicillin. This may be attributed to the hydrophobic nature of azithromycin, and erythromycin penetrates deeper into the RBC membrane to the extent of the hydrophobic core compared to amoxicillin. The result is also concurrent with the observations from the hemolysis assay in the isotonic conditions. To conclude, among the three antibiotics, azithromycin, erythromycin localized on the hydrophobic core of the lipid membrane, and amoxicillin localized on the outer surface and slight penetration to the outer leaflet of the membrane.
{"title":"Evaluation of Dose-dependent Interactions of Antibiotics using RBC Membrane Model Systems","authors":"Selvaraj Stalin, S. Sriharini, S. S. Bharathy","doi":"10.2174/2405520416666230815124135","DOIUrl":"https://doi.org/10.2174/2405520416666230815124135","url":null,"abstract":"\u0000\u0000The present study aims to understand the membrane interactions of three different antibiotics widely used for non-specific viral diseases.\u0000\u0000\u0000\u0000The dose-dependent membrane interactions of the selected antibiotics were elucidated using octanol:water partition coefficient and hemolysis assay\u0000\u0000\u0000\u0000Our octanol:water partition coefficient experiments indicated that among the three antibiotics (Azithromycin, Erythromycin, and Amoxicillin), azithromycin and erythromycin were more hydrophobic compared to amoxicillin. This finding also correlated with hypotonic hemolysis assay experiments where the membrane stabilization effects of both azithromycin and erythromycin were reduced in a dose-dependent manner compared to amoxicillin.\u0000\u0000\u0000\u0000This may be attributed to the hydrophobic nature of azithromycin, and erythromycin penetrates deeper into the RBC membrane to the extent of the hydrophobic core compared to amoxicillin. The result is also concurrent with the observations from the hemolysis assay in the isotonic conditions. To conclude, among the three antibiotics, azithromycin, erythromycin localized on the hydrophobic core of the lipid membrane, and amoxicillin localized on the outer surface and slight penetration to the outer leaflet of the membrane.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-15","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"42995725","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 : 2023-08-09DOI: 10.2174/2405520416666230809152422
P. Singh, Yashika Bajaj, F. Latif
A propitious electrolyte for supercapacitors, solid polymer electrolytes (SPEs) has been used because of their flexibility and highly conducting good electrode-electrolyte interface. Poly (methyl methacrylate) (PMMA)-based SPEs have acknowledged extensive interest due to their integrity in synthesis, good mechanical stability, low binding energy, low mass density with ionic salts, and magnificent charge carrier mobility. Interesting ionic liquids show their novelty towards conductivity enhancement and suppressing crystallinity i.e. acts as a plasticizer as well as an ionic source. Due to these advantageous properties, ionic liquids (ILs) seem to be a good player in developing highly efficient electrochemical devices. To overcome the low ionic conductivity (σ) and poor mechanical stability. ILs assume to be novel candidates. This review is toward defining the role of ILs as plasticizers, not as a solvent. Due to the widespread applicability of these ILs, we focus our review on taking a common example of polyether i.e. PMMA using the solution cast method. Electrical and electrochemical are also discussed in detail. On the the basis of electrical and photoelectrochemical performance reported in this article, we can assure the scientific community that ILs can act as a potential candidate like a plasticizer for highly efficient electrochemical devices.
{"title":"Low Viscosity Ionic Liquids as novel dopants in Poly (methyl methacrylate) polymer electrolyte: Detailed Photoelectrochemical Studies","authors":"P. Singh, Yashika Bajaj, F. Latif","doi":"10.2174/2405520416666230809152422","DOIUrl":"https://doi.org/10.2174/2405520416666230809152422","url":null,"abstract":"\u0000\u0000A propitious electrolyte for supercapacitors, solid polymer electrolytes (SPEs) has been used because of their flexibility and highly conducting good electrode-electrolyte interface. Poly (methyl methacrylate) (PMMA)-based SPEs have acknowledged extensive interest due to their integrity in synthesis, good mechanical stability, low binding energy, low mass density with ionic salts, and magnificent charge carrier mobility. Interesting ionic liquids show their novelty towards conductivity enhancement and suppressing crystallinity i.e. acts as a plasticizer as well as an ionic source. Due to these advantageous properties, ionic liquids (ILs) seem to be a good player in developing highly efficient electrochemical devices.\u0000\u0000\u0000\u0000To overcome the low ionic conductivity (σ) and poor mechanical stability. ILs assume to be novel candidates. This review is toward defining the role of ILs as plasticizers, not as a solvent.\u0000\u0000\u0000\u0000Due to the widespread applicability of these ILs, we focus our review on taking a common example of polyether i.e. PMMA using the solution cast method. Electrical and electrochemical are also discussed in detail.\u0000\u0000\u0000\u0000On the the basis of electrical and photoelectrochemical performance reported in this article, we can assure the scientific community that ILs can act as a potential candidate like a plasticizer for highly efficient electrochemical devices.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-08-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"48409522","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 : 2023-06-14DOI: 10.2174/2405520416666230614122518
G. Jing, Yihai Yang, Zhengnan Sun, Yang Liu, Jianqi Xu, Lina Zhang, Hongyu Tao
Crude oil is a complex mixture consisting of different hydrocarbons such as resins, asphaltenes, aromatics and paraffins. Wax deposition in oil pipelines is considered to be one of the most serious flow assurance problems. In order to obtain a pour point depressant with a better effect on Daqing waxy crude oil, a model oil containing Daqing paraffin was investigated. Polyoctadecyl acrylate was prepared by taking polymerization of octadecyl acrylate monomer under the corresponding reaction conditions. The pour point and viscosity were measured after adding the pour point depressant into the waxy model oil. The experimental results showed that the best pour point reduction effect of polyoctadecyl acrylate was achieved when the mass of octadecyl acrylate monomer was 40wt% of the total mass (the sum of the mass of solute octadecyl acrylate and solvent toluene), the reaction temperature was 80 °C, the reaction time was 6 h, and the amount of initiator was 0.15wt% under the condition that toluene was used as the solvent. The addition of polyoctadecyl acrylate effectively inhibits the appearance of wax crystals and makes the distribution of wax crystals more dispersed. The optimal pour point depressant concentration was found to be 800 mg/kg. The alkyl side chains of polyoctadecyl acrylate allow co-crystallization with the waxy crystals and thus their dispersion, while its polar groups can weaken the interactions between the wax crystals.
{"title":"Study on the Effect of Polyoctadecyl Acrylate on Daqing Waxy Oil","authors":"G. Jing, Yihai Yang, Zhengnan Sun, Yang Liu, Jianqi Xu, Lina Zhang, Hongyu Tao","doi":"10.2174/2405520416666230614122518","DOIUrl":"https://doi.org/10.2174/2405520416666230614122518","url":null,"abstract":"\u0000\u0000Crude oil is a complex mixture consisting of different hydrocarbons such as resins, asphaltenes, aromatics and paraffins. Wax deposition in oil pipelines is considered to be one of the most serious flow assurance problems.\u0000\u0000\u0000\u0000In order to obtain a pour point depressant with a better effect on Daqing waxy crude oil, a model oil containing Daqing paraffin was investigated. Polyoctadecyl acrylate was prepared by taking polymerization of octadecyl acrylate monomer under the corresponding reaction conditions. The pour point and viscosity were measured after adding the pour point depressant into the waxy model oil.\u0000\u0000\u0000\u0000The experimental results showed that the best pour point reduction effect of polyoctadecyl acrylate was achieved when the mass of octadecyl acrylate monomer was 40wt% of the total mass (the sum of the mass of solute octadecyl acrylate and solvent toluene), the reaction temperature was 80 °C, the reaction time was 6 h, and the amount of initiator was 0.15wt% under the condition that toluene was used as the solvent. The addition of polyoctadecyl acrylate effectively inhibits the appearance of wax crystals and makes the distribution of wax crystals more dispersed.\u0000\u0000\u0000\u0000The optimal pour point depressant concentration was found to be 800 mg/kg. The alkyl side chains of polyoctadecyl acrylate allow co-crystallization with the waxy crystals and thus their dispersion, while its polar groups can weaken the interactions between the wax crystals.\u0000","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":" ","pages":""},"PeriodicalIF":0.0,"publicationDate":"2023-06-14","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"47995526","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 : 2023-06-01DOI: 10.2174/2405520416666230809124226
German Vasilevich Pachurin, Nikolay Aleksandrovich Kuzmin, Maria Vadimovna Mochalina, Alexey Aleksandrovich Filippov
Background: The welded joint loss of performance is largely determined by the heterogeneity of the structural state of the heat-affected zones. The basic materials from which the artificial heart valve welded frames are made are technically pure titanium grade VT1-OS and alloy grade 40 KHNM with the required biomedical properties. Objective: The study of the structural state, and changes in mechanical characteristics under static and cyclic loading of welded joints made of pure titanium grade VT1-OS and alloy grade 40 KHNM. Method: The paper investigates structural changes and mechanical characteristics under static and cyclic loading in Ringer-Locke saline solution of welded T-shaped joints made of pure titanium grade VT1-OS and alloy grade 40 KHNM, simulating the nodes of an artificial heart valve subject to maximum cyclic loads during operation. Result: It is revealed that the structural and mechanical heterogeneity along the length of the welded joints of the studied materials determines a loss of mechanical performance, both under static and cyclic loading. Conclusion: Experimental batches of welded elements of artificial heart valve assemblies made of VT1-OS titanium and 40 KHNM alloy according to the established optimal modes have successfully passed full-scale tests on physiological and biological stands in conditions as close as possible to the operational ones.
{"title":"Effect Produced by the Treatment Type on the Performance of the Artificial Heart Valve Welded Frame","authors":"German Vasilevich Pachurin, Nikolay Aleksandrovich Kuzmin, Maria Vadimovna Mochalina, Alexey Aleksandrovich Filippov","doi":"10.2174/2405520416666230809124226","DOIUrl":"https://doi.org/10.2174/2405520416666230809124226","url":null,"abstract":"Background: The welded joint loss of performance is largely determined by the heterogeneity of the structural state of the heat-affected zones. The basic materials from which the artificial heart valve welded frames are made are technically pure titanium grade VT1-OS and alloy grade 40 KHNM with the required biomedical properties. Objective: The study of the structural state, and changes in mechanical characteristics under static and cyclic loading of welded joints made of pure titanium grade VT1-OS and alloy grade 40 KHNM. Method: The paper investigates structural changes and mechanical characteristics under static and cyclic loading in Ringer-Locke saline solution of welded T-shaped joints made of pure titanium grade VT1-OS and alloy grade 40 KHNM, simulating the nodes of an artificial heart valve subject to maximum cyclic loads during operation. Result: It is revealed that the structural and mechanical heterogeneity along the length of the welded joints of the studied materials determines a loss of mechanical performance, both under static and cyclic loading. Conclusion: Experimental batches of welded elements of artificial heart valve assemblies made of VT1-OS titanium and 40 KHNM alloy according to the established optimal modes have successfully passed full-scale tests on physiological and biological stands in conditions as close as possible to the operational ones.","PeriodicalId":38021,"journal":{"name":"Recent Innovations in Chemical Engineering","volume":"11 1","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-06-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135145991","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：