Pub Date : 2021-03-30DOI: 10.11648/J.SJC.20210901.14
I. Thiam, Papa Aly Gaye, M. Sow, O. Diouf, P. Retailleau, M. Gaye
The Schiff base 1-(benzothiazol-2-yl)(2-pyridylmethylidene)hydrazine (HL) was synthesis via a condensation of 1-(benzo[d]thiazol-2-yl)hydrazine and 2-pyridine carboxaldehyde in methanol in 1:1 molar ratio reaction. The crystal structure of a mononuclear complex Bis[1-(benzothiazole-2yl-2κN)(2-pyridylmethyliden-1κN)(hydrazino-2κN)] cobalt(II) complex (1) (CoC26H20N8S2) was obtained by the reaction of HL with Co(CH3COO)2.4H2O, in 2:1 ratio, in methanol at room temperature. The ligand and the complex are characterized by IR, and physical measurement. The spectroscopic study shows that the Schiff base possesses five potential donor sites. Upon coordination the results show that the ligand acts in tridentate mode. Suitable crystals of the compound 1 were grown by slow evaporation of methanol solution for one week. The structure of 1 was elucidated by X-ray diffraction analysis. The compound crystallizes in the monoclinic crystal system with a space group of P21/c. The asymmetric unit of compound 1 contains a mononuclear complex in which the cobalt ion is coordinated to two monodeprotonated molecules of the Schiff base. Each of the ligand molecule acts through three nitrogen atoms. The Co(II) center is hexacoordinated and the environment is best described as a distorted octahedral geometry. The two ligand molecules occupy mean planes which are quasi-perpendicular with a dihedral angle of 89.77(2)°. Each molecule of complex is connected to its neighbor via hydrogen bond of type C–H•••S resulting in chains along b axis.
{"title":"Crystal Structure of a Bis[1-(benzothiazole-2yl-2κN)(2-Pyridylmethyliden-1κN)(hydrazino-2κN)] Cobalt(II) Complex","authors":"I. Thiam, Papa Aly Gaye, M. Sow, O. Diouf, P. Retailleau, M. Gaye","doi":"10.11648/J.SJC.20210901.14","DOIUrl":"https://doi.org/10.11648/J.SJC.20210901.14","url":null,"abstract":"The Schiff base 1-(benzothiazol-2-yl)(2-pyridylmethylidene)hydrazine (HL) was synthesis via a condensation of 1-(benzo[d]thiazol-2-yl)hydrazine and 2-pyridine carboxaldehyde in methanol in 1:1 molar ratio reaction. The crystal structure of a mononuclear complex Bis[1-(benzothiazole-2yl-2κN)(2-pyridylmethyliden-1κN)(hydrazino-2κN)] cobalt(II) complex (1) (CoC26H20N8S2) was obtained by the reaction of HL with Co(CH3COO)2.4H2O, in 2:1 ratio, in methanol at room temperature. The ligand and the complex are characterized by IR, and physical measurement. The spectroscopic study shows that the Schiff base possesses five potential donor sites. Upon coordination the results show that the ligand acts in tridentate mode. Suitable crystals of the compound 1 were grown by slow evaporation of methanol solution for one week. The structure of 1 was elucidated by X-ray diffraction analysis. The compound crystallizes in the monoclinic crystal system with a space group of P21/c. The asymmetric unit of compound 1 contains a mononuclear complex in which the cobalt ion is coordinated to two monodeprotonated molecules of the Schiff base. Each of the ligand molecule acts through three nitrogen atoms. The Co(II) center is hexacoordinated and the environment is best described as a distorted octahedral geometry. The two ligand molecules occupy mean planes which are quasi-perpendicular with a dihedral angle of 89.77(2)°. Each molecule of complex is connected to its neighbor via hydrogen bond of type C–H•••S resulting in chains along b axis.","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"32 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-03-30","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"89447384","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 : 2021-01-01DOI: 10.11648/j.sjc.20210906.11
M. Mohebby, Seyed Najmeddin Mortazavi, A. Kheiry, J. Saba
Flowers of many plants emit scents, which are almost always a complex of small volatile organic compounds such as essential oils that they are the ones who give the fragrance of flowers and also have medicinal curative properties. So, the most common topic in the field of plant sciences, has been focused on improving flower’s quality and quantity by application of plant growth regulators (PGRs) to modify growth and flowering patterns. For this purpose, a research was conducted at the research field of agricultural faculty of Zanjan university on purple coneflower during farming years of 2017-2018 and 20182019 by application of salicylic-acid (0 (control), 50, 100 and 150 mM) and methyl-jasmonate (0 (control), 50, 100 and 200 μM). In the first year of experiment, treatments were sprayed on plants (four plants per plot) in two stages (20 days apart). In the second year, they were also sprayed on remaining plants as the first year. The results indicated that the highest percentage of essential oils in the flower heads of purple coneflower was related to treatment of 100 mM salicylic acid and 50 μmol methyl jasmonate in the first year and treatments of 100 mM salicylic acid and 50 and 100 μmol methyl jasmonate in the second year. The highest percentage of total compounds of essential oils in the first year was related to treatment of 50 mM salicylic acid and 50 μmol methyl jasmonate and in the second year was related to treatment of 100 mM salicylic acid and 100 μmol methyl jasmonate. The identified compounds in the essential oils of purple coneflower samples included hydrocarbon monoterpenes, oxygenated monoterpenes, hydrocarbon sesquiterpene, oxygenated sesquiterpenes and other compounds. The highest percentage of total compounds of essential oils in the first year was related to treatment of 50 mM salicylic acid and 50 μmol methyl jasmonate and in the second year was related to treatment of 100 mM salicylic acid and 100 μmol methyl jasmonate. Also, most of compounds increased in the second year compared to the first year.
{"title":"Evaluation the Effects of Salicylic Acid and Methyl Jasmonate on the Scent of Purple Coneflower (<i>Echinacea purpurea</i> L. Moench) Flowers","authors":"M. Mohebby, Seyed Najmeddin Mortazavi, A. Kheiry, J. Saba","doi":"10.11648/j.sjc.20210906.11","DOIUrl":"https://doi.org/10.11648/j.sjc.20210906.11","url":null,"abstract":"Flowers of many plants emit scents, which are almost always a complex of small volatile organic compounds such as essential oils that they are the ones who give the fragrance of flowers and also have medicinal curative properties. So, the most common topic in the field of plant sciences, has been focused on improving flower’s quality and quantity by application of plant growth regulators (PGRs) to modify growth and flowering patterns. For this purpose, a research was conducted at the research field of agricultural faculty of Zanjan university on purple coneflower during farming years of 2017-2018 and 20182019 by application of salicylic-acid (0 (control), 50, 100 and 150 mM) and methyl-jasmonate (0 (control), 50, 100 and 200 μM). In the first year of experiment, treatments were sprayed on plants (four plants per plot) in two stages (20 days apart). In the second year, they were also sprayed on remaining plants as the first year. The results indicated that the highest percentage of essential oils in the flower heads of purple coneflower was related to treatment of 100 mM salicylic acid and 50 μmol methyl jasmonate in the first year and treatments of 100 mM salicylic acid and 50 and 100 μmol methyl jasmonate in the second year. The highest percentage of total compounds of essential oils in the first year was related to treatment of 50 mM salicylic acid and 50 μmol methyl jasmonate and in the second year was related to treatment of 100 mM salicylic acid and 100 μmol methyl jasmonate. The identified compounds in the essential oils of purple coneflower samples included hydrocarbon monoterpenes, oxygenated monoterpenes, hydrocarbon sesquiterpene, oxygenated sesquiterpenes and other compounds. The highest percentage of total compounds of essential oils in the first year was related to treatment of 50 mM salicylic acid and 50 μmol methyl jasmonate and in the second year was related to treatment of 100 mM salicylic acid and 100 μmol methyl jasmonate. Also, most of compounds increased in the second year compared to the first year.","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"27 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"87643059","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 : 2021-01-01DOI: 10.11648/j.sjc.20210906.16
Teshome Mender, Meselu Eskezia
{"title":"Review on the Chemical Conversion of Carbon Dioxide with Aziridineby Using Catalyts: Environmentally Freiendly Accesses to Cyclic Carbamates","authors":"Teshome Mender, Meselu Eskezia","doi":"10.11648/j.sjc.20210906.16","DOIUrl":"https://doi.org/10.11648/j.sjc.20210906.16","url":null,"abstract":"","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"88 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"79382197","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 : 2021-01-01DOI: 10.11648/j.sjc.20210906.14
Charlemagne Ndoumbe Tamba, Sergi Herve Akone, Caroline Ngo Nyobe, Claudia Stevine Popwo Tameye, Jean Pierre Longue Ekon, Jules Lobe Songue, Jean Claude Ndom
{"title":"New Bioactive Flavonoid Derivative from the Leaves of <i>Caloncoba echinata</i>","authors":"Charlemagne Ndoumbe Tamba, Sergi Herve Akone, Caroline Ngo Nyobe, Claudia Stevine Popwo Tameye, Jean Pierre Longue Ekon, Jules Lobe Songue, Jean Claude Ndom","doi":"10.11648/j.sjc.20210906.14","DOIUrl":"https://doi.org/10.11648/j.sjc.20210906.14","url":null,"abstract":"","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"38 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"83664268","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 : 2021-01-01DOI: 10.11648/j.sjc.20210906.15
Soungalo Ouattara, B. Sorgho, Moustapha Sawadogo, Y. Sawadogo, M. Seynou, P. Blanchart, M. Gomina, L. Zerbo
{"title":"Development and Characterization of Geopolymers Based on a Kaolinitic Clay","authors":"Soungalo Ouattara, B. Sorgho, Moustapha Sawadogo, Y. Sawadogo, M. Seynou, P. Blanchart, M. Gomina, L. Zerbo","doi":"10.11648/j.sjc.20210906.15","DOIUrl":"https://doi.org/10.11648/j.sjc.20210906.15","url":null,"abstract":"","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"23 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"75376934","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 : 2021-01-01DOI: 10.11648/j.sjc.20210905.12
Alexander Joseph Kossolapov, Ksenia Sergeevna Chugunova
{"title":"Residual Elastic Stress in Historical Coins as a Criterion for Authentication","authors":"Alexander Joseph Kossolapov, Ksenia Sergeevna Chugunova","doi":"10.11648/j.sjc.20210905.12","DOIUrl":"https://doi.org/10.11648/j.sjc.20210905.12","url":null,"abstract":"","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"5 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"90615708","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 : 2021-01-01DOI: 10.11648/j.sjc.20210906.12
Adil Emin, Tursunay Mamtimin
: The metal catalyst has good electrical conductivity, is simple to prepare and easy to be applied in practice. It is currently the most in-depth researched catalyst for electrochemical reduction of carbon dioxide. In recent decades, metals such as copper, cobalt, tin, and gold have been used as electrode catalysts for reducing carbon dioxide. From the perspective of the reduction mechanism of carbon dioxide, it is generally believed that the formation of C intermediate is the rate-determining step of the entire reduction reaction. One of the main functions of metal catalysts is to enable the corresponding reaction intermediates to exist stably, thereby improving the energy efficiency of the reaction. According to the combination with different intermediates and the different products obtained, the metal electrode catalysts can be divided into three categories. In this paper, the current research status of electrocatalytic and photocatalytic reduction of carbon dioxide and carbon dioxide under Raman spectroscopy are introduced. Also elaborate, the Raman spectroscopic characterization of carbon dioxide has been introduced in this paper with emphasis on the changes of Fermi resonance peaks of CO 2 with temperature and pressure. The advantages and disadvantages of using metal and metal complexes, carbon materials, composite materials and MOF materials to reduce CO 2 are introduced. The method was improved, and finally focused on the core issues of improving reactivity and product selectivity, and analyzed the shortcomings of current electrocatalytic processes extended to large-scale production applications from surface engineering, chemical modification, nano or composite materials. There are other ways to improve the activity of the catalyst from these aspects, as well as the prospects for future research.
{"title":"Progress in Raman Spectroscopy and Reduction of Carbon Dioxide","authors":"Adil Emin, Tursunay Mamtimin","doi":"10.11648/j.sjc.20210906.12","DOIUrl":"https://doi.org/10.11648/j.sjc.20210906.12","url":null,"abstract":": The metal catalyst has good electrical conductivity, is simple to prepare and easy to be applied in practice. It is currently the most in-depth researched catalyst for electrochemical reduction of carbon dioxide. In recent decades, metals such as copper, cobalt, tin, and gold have been used as electrode catalysts for reducing carbon dioxide. From the perspective of the reduction mechanism of carbon dioxide, it is generally believed that the formation of C intermediate is the rate-determining step of the entire reduction reaction. One of the main functions of metal catalysts is to enable the corresponding reaction intermediates to exist stably, thereby improving the energy efficiency of the reaction. According to the combination with different intermediates and the different products obtained, the metal electrode catalysts can be divided into three categories. In this paper, the current research status of electrocatalytic and photocatalytic reduction of carbon dioxide and carbon dioxide under Raman spectroscopy are introduced. Also elaborate, the Raman spectroscopic characterization of carbon dioxide has been introduced in this paper with emphasis on the changes of Fermi resonance peaks of CO 2 with temperature and pressure. The advantages and disadvantages of using metal and metal complexes, carbon materials, composite materials and MOF materials to reduce CO 2 are introduced. The method was improved, and finally focused on the core issues of improving reactivity and product selectivity, and analyzed the shortcomings of current electrocatalytic processes extended to large-scale production applications from surface engineering, chemical modification, nano or composite materials. There are other ways to improve the activity of the catalyst from these aspects, as well as the prospects for future research.","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"41 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2021-01-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"81305538","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 : 2020-02-12DOI: 10.11648/J.SJC.2019070612
Dame Seye, Assane Touré, M. Lo, C. Diop, L. Diop,, D. Geiger
Use of salts and co-crystals of active pharmaceutical ingredients (APIs) as a method for tuning their delivery and activity is an area of growing interest. Modifying API properties such as solubility by finding new salts that employ similar hydrogen-bonding have been successful. In an effort to further study the hydrogen-bonding patterns of the maleate ion with other diisopropylammonium we report here the synthesis and diisopropylammonium maleate. The salt was isolated from reaction between diisopropylamine and maleic acid in methanol. The results of elementary analyzes (CHN) showed the presence of the nitrogen atom of diisopropylamine, carbon atoms and hydrogen. The IR spectrum of diisopropylammonium hydrogen maleate, showed the presence of two intense bands due to the vibrations of symmetricand anti-symmetric valence of the carboxylate group and a wide absorption due to the NH2 groups of the cation. Those which has been confirmed by crystallography. The asymmetric unit contains one diisopropylammonium cation, iPr2NH2+ and one hydrogen maleate anion. In the structure, anions which present an inner O-H…O hydrogen bond are linked to cations through N-H…O hydrogen bonds leading to infinite chains. Chains are connected to their neighbours through weak C-H…O hydrogen bonds affording a layer. The study of the interactions of diisopropylammonium hydrogen menaleate, by the presence of hydrogen bonds leading to supramolecular architectures has shown the possibility of its use in Active Pharmaceutical Ingredients (API).
{"title":"Crystal Structure of Diisopropylammonium Hydrogen Maleate","authors":"Dame Seye, Assane Touré, M. Lo, C. Diop, L. Diop,, D. Geiger","doi":"10.11648/J.SJC.2019070612","DOIUrl":"https://doi.org/10.11648/J.SJC.2019070612","url":null,"abstract":"Use of salts and co-crystals of active pharmaceutical ingredients (APIs) as a method for tuning their delivery and activity is an area of growing interest. Modifying API properties such as solubility by finding new salts that employ similar hydrogen-bonding have been successful. In an effort to further study the hydrogen-bonding patterns of the maleate ion with other diisopropylammonium we report here the synthesis and diisopropylammonium maleate. The salt was isolated from reaction between diisopropylamine and maleic acid in methanol. The results of elementary analyzes (CHN) showed the presence of the nitrogen atom of diisopropylamine, carbon atoms and hydrogen. The IR spectrum of diisopropylammonium hydrogen maleate, showed the presence of two intense bands due to the vibrations of symmetricand anti-symmetric valence of the carboxylate group and a wide absorption due to the NH2 groups of the cation. Those which has been confirmed by crystallography. The asymmetric unit contains one diisopropylammonium cation, iPr2NH2+ and one hydrogen maleate anion. In the structure, anions which present an inner O-H…O hydrogen bond are linked to cations through N-H…O hydrogen bonds leading to infinite chains. Chains are connected to their neighbours through weak C-H…O hydrogen bonds affording a layer. The study of the interactions of diisopropylammonium hydrogen menaleate, by the presence of hydrogen bonds leading to supramolecular architectures has shown the possibility of its use in Active Pharmaceutical Ingredients (API).","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"9 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2020-02-12","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"80513141","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 : 2019-12-05DOI: 10.11648/J.SJC.20190706.11
Meng Zhang
At present, the world is facing two major problems: energy crisis and CO2 emission. Diethyl carbonate is an effective gasoline additive which can greatly improve octane number. The route of diethyl carbonate synthesis from CO2 is green and economical technique, which can effectively solve both energy crisis and CO2 emission problems together. However, the design and preparation of catalysts is the core and key to realize the conversion from CO2 to diethyl carbonate. This paper mainly described a novel synthesis of ZnO@Na3PW12O40 heterogeneous material that applied in the direct synthesis of diethyl carbonate from CO2 and ethanol. The special pore and channel structure of Na3PW12O40 was used to maximize the catalytic capacity of ZnO material. The prepared catalysts were fully characterized by means of temperature-programmed desorption (TPD) and X-ray powder diffraction (XRD). The properties of acid-base sites on the surface of ZnO@Na3PW12O40 were measured by temperature-programmed desorption technique. The catalytic performance over ZnO@Na3PW12O40 heterogeneous material was examined on micro-reactor. The experiment results indicated that synthesized novel ZnO@Na3PW12O40 heterogeneous material had large number of acid-base sites and high catalytic activity. This novel ZnO@Na3PW12O40 catalyst had great ability to realize the effective conversion from CO2 to diethyl carbonate. This technology not only improved the utilization rate of energy materials, but also reduced CO2 emissions.
{"title":"Direct Synthesis of Diethyl Carbonate from CO2 over ZnO@Na3PW12O40 Heterogeneous Material","authors":"Meng Zhang","doi":"10.11648/J.SJC.20190706.11","DOIUrl":"https://doi.org/10.11648/J.SJC.20190706.11","url":null,"abstract":"At present, the world is facing two major problems: energy crisis and CO2 emission. Diethyl carbonate is an effective gasoline additive which can greatly improve octane number. The route of diethyl carbonate synthesis from CO2 is green and economical technique, which can effectively solve both energy crisis and CO2 emission problems together. However, the design and preparation of catalysts is the core and key to realize the conversion from CO2 to diethyl carbonate. This paper mainly described a novel synthesis of ZnO@Na3PW12O40 heterogeneous material that applied in the direct synthesis of diethyl carbonate from CO2 and ethanol. The special pore and channel structure of Na3PW12O40 was used to maximize the catalytic capacity of ZnO material. The prepared catalysts were fully characterized by means of temperature-programmed desorption (TPD) and X-ray powder diffraction (XRD). The properties of acid-base sites on the surface of ZnO@Na3PW12O40 were measured by temperature-programmed desorption technique. The catalytic performance over ZnO@Na3PW12O40 heterogeneous material was examined on micro-reactor. The experiment results indicated that synthesized novel ZnO@Na3PW12O40 heterogeneous material had large number of acid-base sites and high catalytic activity. This novel ZnO@Na3PW12O40 catalyst had great ability to realize the effective conversion from CO2 to diethyl carbonate. This technology not only improved the utilization rate of energy materials, but also reduced CO2 emissions.","PeriodicalId":21607,"journal":{"name":"Science Journal of Chemistry","volume":"12 1","pages":""},"PeriodicalIF":0.0,"publicationDate":"2019-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"77530442","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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