{"title":"A Detailed Investigation and Catalytic Application of Gold Nanoparticles Towards Synthesis of N & O-Heterocycles","authors":"Subhendu Chakroborty, Jitendra Malviya, Deepak Ranjan Mishra, Nilima Priyadarsini Mishra, Bhabani Shankar Panda, Amiya Ranjan Panda, Susnata Sovalin Mohapatra, Sawan Yadav, Deepesh Gupta","doi":"10.1007/s11244-023-01884-7","DOIUrl":"https://doi.org/10.1007/s11244-023-01884-7","url":null,"abstract":"<p>Nanotechnology advancements, notably in catalysis, have found several uses in the fabrication of heterocyclic molecules. An abundance nanoparticle (NPs) has been successfully used in a variety of organic transformations, which prompted us to undertake concentrated efforts to cover all instances in which gold nanoparticles (Au NPs) have been used in organic transformations. The catalytic application of gold nanoparticles in organic transformation has gained considerable interest researchers owing to its physical and chemical properties. Gold nanoparticles as catalysts in organic reactions deliver robust, green, and cost-effective alternatives for the synthetic transformations of heterocyclic scaffolds. Nitrogen- and oxygen-containing heterocyclic atoms are the essential prime units existing in diverse carbon-based vibrant lives and are substantial for industrial, pharmaceutical, and agrochemicals. Our focus will be on Au NP-catalyzed reactions in synthetic transformations for the production of heterocyclic scaffolds containing nitrogen and oxygen heteroatoms documented from 2011 to 2022. From a synthetic standpoint, this review will offer the reader an intrinsic framework for selecting the optimal Au NP catalytic system of importance for the synthesis of the preferred heterocyclic scaffold.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"15 4","pages":""},"PeriodicalIF":3.6,"publicationDate":"2023-12-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138518994","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Sheraz Ahmed, Syeda Sidra Bibi, Muhammad Irshad, Muhammad Asif, Muhammad Kashif Khan, Jaehoon Kim
{"title":"Synthesis of Long-chain Paraffins over Bimetallic Na–Fe0.9Mg0.1Ox by Direct CO2 Hydrogenation","authors":"Sheraz Ahmed, Syeda Sidra Bibi, Muhammad Irshad, Muhammad Asif, Muhammad Kashif Khan, Jaehoon Kim","doi":"10.1007/s11244-023-01888-3","DOIUrl":"https://doi.org/10.1007/s11244-023-01888-3","url":null,"abstract":"<p>Direct CO<sub>2</sub> hydrogenation into long-chain hydrocarbons over iron catalysts is considered the most promising approach to mitigate global warming issues. However, iron catalysts typically produce olefin-rich hydrocarbons, which make it difficult to directly use them as liquid transportation fuels. Here, we present a bimetallic Na–Fe<sub>0.9</sub>Mg<sub>0.1</sub>O<sub>x</sub> catalyst that produced paraffin-rich long-chain hydrocarbons with a high C<sub>5+</sub> yield of 17.9% at a high CO<sub>2</sub> conversion of 42.1%. The formation of oxygen vacant sites at the catalyst surface and electron transfer from MgO to Fe phase increased the reducibility of Fe<sub>3</sub>O<sub>4</sub> to α–Fe. In addition, the presence of MgO increased the H<sub>2</sub> and CO<sub>2</sub> adsorption and facilitated the C–C coupling reaction to produce long-chain paraffins. The high CO<sub>2</sub> conversion, high C<sub>5+</sub> yield, and paraffin-rich products make Fe<sub>0.9</sub>Mg<sub>0.1</sub>O<sub>x</sub> a highly promising catalyst to produce liquid transportation fuels under industry-relevant conditions.</p>","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"14 ","pages":""},"PeriodicalIF":3.6,"publicationDate":"2023-11-28","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138518995","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
L. Suganya, K S. Balamurugan, A. Sivakami, P. Sakthivel, Nidhi Asthana, B. Sundaresan
{"title":"Ferromagnetic, Optical and Photoluminescence Behavior of Ni-Doped ZnO Thin Films","authors":"L. Suganya, K S. Balamurugan, A. Sivakami, P. Sakthivel, Nidhi Asthana, B. Sundaresan","doi":"10.1007/s11244-023-01886-5","DOIUrl":"https://doi.org/10.1007/s11244-023-01886-5","url":null,"abstract":"<p>Ni-doped ZnO (NZO) thin films were prepared onto a glass substrate with varying concentrations of 2, 4, 6, 8, 10% of Ni using sol-gel spin coating method and their structural, optical and magnetic characteristics were discussed with supporting of XRD, UV, Photoluminescence, XPS and vibrating sample magnetometer (VSM) characterization techniques. The XRD analysis shows that the polycrystalline hexagonal wurtzite structure with (002) orientation of NZO thin films. The XPS results confirmed the presence of Ni ion in all the samples. The optical bandgap of the prepared samples was decreased with increasing concentrations of nickel from 3.33 to 3.22 eV. Photoluminescence spectra showed a red shift of near band edge (NBE) and deep level (DLE) emissions for prepared undoped and NZO thin films. The VSM of prepared NZO thin films exhibit ferromagnetic behavior at room temperature for potential applications in various fields. Our experimental observations support for transparent conducting electrode and spintronics device applications.</p><h3 data-test=\"abstract-sub-heading\">Graphical Abstract</h3>\u0000","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"39 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2023-11-25","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138542754","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Nguyen Vu Hanh Nhan, Le Nguyen Quang Tu, Bui Tan Loc, Dang Cam Vinh, Nguyen Thi Truc Phuong, Ngo Tran Hoang Duong, Nguyen Van Dung, Tran Thuy Tuyet Mai, Nguyen Quang Long
{"title":"Microwave-assisted Synthesis of Carbon Nanodots/TiO2 Composite with Enhanced Photocatalytic Oxidation of VOCs in a Continuous Flow Reaction","authors":"Nguyen Vu Hanh Nhan, Le Nguyen Quang Tu, Bui Tan Loc, Dang Cam Vinh, Nguyen Thi Truc Phuong, Ngo Tran Hoang Duong, Nguyen Van Dung, Tran Thuy Tuyet Mai, Nguyen Quang Long","doi":"10.1007/s11244-023-01889-2","DOIUrl":"https://doi.org/10.1007/s11244-023-01889-2","url":null,"abstract":"<p>Carbon nanodots were successfully prepared by a simple microwave-assisted method.</p>\u0000<p>Carbon nanodots played a vital role in the improvement of the photocatalytic activity of TiO<sub>2</sub>.</p>\u0000<p>Photocatalytic removal of formaldehyde, acetone, and toluene was tested under humid conditions.</p>\u0000<p>High catalytic stability in the degradation of formaldehyde was obtained on CDs/TiO<sub>2</sub>.</p>","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"1 1","pages":""},"PeriodicalIF":3.6,"publicationDate":"2023-11-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"138542753","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
P. Lalitha, S. Arumugam, A. Sinthiya, Sugumari Vallinayagam
{"title":"Tricine Incorporated Potassium Metal Ion Crystal: Antibacterial and NLO Activities","authors":"P. Lalitha, S. Arumugam, A. Sinthiya, Sugumari Vallinayagam","doi":"10.1007/s11244-023-01882-9","DOIUrl":"https://doi.org/10.1007/s11244-023-01882-9","url":null,"abstract":"","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"87 2","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135341626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Catalytic Oxidation of 1,2-Dichlorobenzene over Metal-Supported on ZrO2 Catalysts","authors":"Nomthandazo Mkhize, Vinod Kumar Vashistha, Viswandha Srirama Rajasekhar Pullabhotla","doi":"10.1007/s11244-023-01876-7","DOIUrl":"https://doi.org/10.1007/s11244-023-01876-7","url":null,"abstract":"Abstract The catalytic oxidation of environmentally unfriendly chlorinated organics is a powerful tool that can be used to completely mineralize these organic compounds. In this study, metals (Mn, Ni, V, and Fe) supported on zirconia have been investigated as catalysts in the oxidation of 1,2-dichlorobenzene. Metal supported on zirconia catalysts were prepared using the wet impregnation method. The catalyst materials were characterized by FT-IR, XRD, SEM–EDX, TEM, BET, and ICP methods. Metals were loaded on ZrO 2 support at varied wt%, 2.5, 5, 7.5, and 10 which were confirmed by ICP-OES and EDX analysis. The XRD patterns of all the metals loaded on ZrO 2 catalysts showed diffraction peaks that belong to the monoclinic phase of ZrO 2 and few that are attributed to the oxides of the metals. The BET surface areas showed a significant decrease as the metal was loaded on ZrO 2 support. The BET surface area of ZrO 2 was 4.91 m 2 /g and when 2.5 and 7.5 wt% Fe was loaded on ZrO 2 the BET surface areas were 4.48 and 3.09 m 2 /g, respectively. All the ozonation reactions of 1,2-dichlorobenzene were conducted in an impinger unit for 24 h. The aliquots were collected after 3, 6, 9, 12, 15, 18, and 24 of ozonation and analyzed using FT-IR and GC–MS analyses. The 7.5% Fe/ZrO 2 was found to have a relatively high catalytic effect toward the conversion of 1,2-dichlorobenzene into mucochloric acid and 3,4-dichloro-2,5-furandione.","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"156 6","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-07","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135479670","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Salma E. Mora Rodríguez, Eugenio Hernandez-Fernández, Miguel A. Vázquez, Marco A. García-Revilla, Selene Lagunas-Rivera
{"title":"DFT Computational Analysis of Photophysical (Linear and Non-linear) and Photochemical Parameters for the Design of New Coumarins as Photocatalyst","authors":"Salma E. Mora Rodríguez, Eugenio Hernandez-Fernández, Miguel A. Vázquez, Marco A. García-Revilla, Selene Lagunas-Rivera","doi":"10.1007/s11244-023-01871-y","DOIUrl":"https://doi.org/10.1007/s11244-023-01871-y","url":null,"abstract":"","PeriodicalId":801,"journal":{"name":"Topics in Catalysis","volume":"79 3","pages":"0"},"PeriodicalIF":0.0,"publicationDate":"2023-11-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"135773734","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":3,"RegionCategory":"化学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}