Article
Chemistry, Applied
Vahide Nuran Mutlu, Selahattin Yilmaz
Summary: The glycosidation of glucose with n-butanol was studied using sulphated Zr and tungstophosphoric acid incorporated SBA-15 catalysts, showing improved acidity and higher yields of butyl glucoside. The TPA-SBA-15 catalyst demonstrated the highest activity and selectivity, with stable and reusable performance. Further studies on reaction temperature and catalyst amount were conducted to optimize the reaction parameters.
Article
Materials Science, Multidisciplinary
Xijun Li, Sifan Zhang, Lihua Zhu, Jun Liu, Huan Zhang, Ning Zhao, Bing Hui Chen
Summary: In this study, a series of Pt-based bimetallic catalysts were synthesized using ultrasonic incipient wetness impregnation method, with PtCo5/SBA-15 showing the best catalytic performance for selective hydrogenation of crotonaldehyde. The selectivity of the PtCo5/SBA-15 catalyst for crotonaldehyde to crotyl alcohol is significantly improved with the increase of Co content. Factors contributing to the superior catalytic performance of PtCo5/SBA-15 include the formation of PtCo alloy, synergy effect between Pt and Co, and electron transfer.
MATERIALS CHEMISTRY AND PHYSICS
(2023)
Article
Chemistry, Physical
Yue Chen, Yongmin Huang
Summary: Methanol steam reforming (MSR) shows promise in hydrogen production. Cu-SBA-15 and Cu-Ce/SBA-15-I catalysts have poor selectivity due to slow steam activation, while small Cu0 tends to sinter. Modifying SBA-15 with Ce ion exchange can prevent sintering and improve catalytic performance.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Norshakirah Ahmad Rashidi, Elnida Mustapha, Yeow Yean Theng, Noor Azira Abdul Razak, Najihah Abdul Bar, Khairul Basyar Baharudin, Darfizzi Derawi
Summary: Waste cooking oil is an attractive feedstock for producing advanced biofuels due to its low cost and abundant availability. This study focused on the synthesis and analysis of mesoporous bimetallic catalysts for the catalytic deoxygenation of waste cooking oil. The results showed that the catalyst with 10% Ni-Fe/SBA-15 had the highest liquid yield but low selectivity towards the diesel fraction, while the catalyst with 5% Ni-Co/SBA-15 had the highest selectivity towards the diesel fraction.
Article
Chemistry, Multidisciplinary
Qingtao Niu, Guodong Liu, Zhiguo Lv, Chongdian Si, Manman Jin
Summary: Three two-dimensional hybrid materials based on SBA-15 were successfully synthesized using a post-synthetic functionalization strategy, where peroxo-W and PW species were immobilized on the surface. The catalysts showed significant activity for cyclopentene epoxidation using H2O2 as the oxidant, with SBA-15-ImCl-PF6-W catalyst exhibiting excellent selectivity and SBA-15-NH(PO3H2)-W catalyst showing good cycle performance. The environmentally-friendly process utilized a low dose of heterogeneous catalyst and green oxidant without any co-solvent.
Article
Physics, Multidisciplinary
Li Chong-Yang, Zhao Bin, Zhang Jun-Wei
Summary: Due to its unique two-dimensional hexagonal structure, large surface area, and high thermal stability, SBA-15 catalyst has attracted extensive attention. We successfully synthesized ordered mesoporous silica SBA-15 and ordered mesoporous carbon OMC, and verified their highly ordered pore structure and relatively high specific surface area through various testing methods. Furthermore, we discovered the quenching effect and inhibition effect between carbon, CuO, and positronium.
ACTA PHYSICA SINICA
(2022)
Article
Environmental Sciences
Lu Huang, Hang Zhang, Tao Zeng, Jianmeng Chen, Shuang Song
Summary: The exploration of low-cost, high-performance, and stable catalytic materials for sulfate radical-based advanced oxidation processes is crucial. The Fe3O4@SBA-15 catalyst demonstrated impressive removal efficiency and maintained activity throughout six successive cycling tests. However, inorganic anions and organic material in natural water pose a negative impact on Fe3O4@SBA-15 catalyzed SR-AOPs and require special attention.
SCIENCE OF THE TOTAL ENVIRONMENT
(2021)
Article
Agricultural Engineering
Fan Wang, Chenglong Wen, Mohong Lu, Peng Zhang, Jie Zhu, Mingshi Li, Yuhua Shan, Chunshan Song
Summary: Mo2N@NC/SBA-15 catalysts with high stability and dispersion were prepared using MoCl5 and dicyandiamide as Mo and C/N sources, respectively. During the carbonization process under H2 at an elevated temperature, Mo2N was formed in situ while dicyandiamide was converted to N-doped carbon (NC). The presence of N-doped carbon species around Mo2N NPs inhibited the aggregation of Mo2N NPs, resulting in the generation of ultrafine Mo2N nanoparticles. Mo2N@NC/SBA-15 catalysts exhibited high hydro-deoxygenation activity and aromatic compound selectivity. The selectivity towards aromatic products reached 92% and guaiacol conversion reached 99% at 380 degrees C and 2 MPa.
BIOMASS & BIOENERGY
(2023)
Article
Chemistry, Physical
Mohamed Sadou, Adel Saadi, Mohammed Hadj Meliani, Rami K. Suleiman, Tawfik A. Saleh
Summary: A facile synthetic method was used to prepare copper-modified SBA-15 catalysts. The catalysts showed high activity, which could be attributed to the well-dispersed copper nanoparticles on the mesoporous support.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Yutong Zhu, Xiaofei Xu, Jian He, Jie Guo, Ke Song
Summary: In this study, mesoporous Ti-SBA-15 catalysts were synthesized and their catalytic performance in the conversion of fructose to HMF was investigated. High yields of HMF could be obtained by adjusting the Si/Ti ratio and reaction conditions, and the catalyst exhibited good stability.
FRONTIERS IN CHEMISTRY
(2022)
Article
Engineering, Environmental
Joanna Wisniewska, Izabela Sobczak, Maria Ziolek
Summary: The study compared different supports for gold catalysts for the selective oxidation of glucose to gluconic acid, finding that negatively charged gold particles on the Au/SBA-15 catalyst played a crucial role in the reaction. The addition of calcium improved gold dispersion and catalyst stability, but at the cost of decreased activity after initial cycles.
CHEMICAL ENGINEERING JOURNAL
(2021)
Article
Chemistry, Physical
Palle Ramana Murthy, Jing-Cai Zhang, Wei-Zhen Li
Summary: A thermally stable Pd/SBA-15 catalyst prepared using the sol-immobilization method shows excellent catalytic activity and stability for methane combustion at low temperatures, with smaller nanoparticles size being essential for higher activity. The presence of water vapor in the reactant mixture negatively affects the catalytic activity of the catalyst, and hydrothermal treatment leads to partial re-dispersion of Pd nanoparticles. This work may provide insights into designing stable metal catalysts for reactions under harsh conditions using porous materials.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Agricultural Engineering
Gurmeet Singh, Tuhin S. Khan, Chanchal Samanta, Rajaram Bal, Ankur Bordoloi
Summary: 2-Pentanone has been successfully synthesized from biomass-derived furfural through simultaneous hydrodeoxygenation, ring-opening, and hydrogenation reactions over a bi-metallic Cu-Ni/SBA-15 catalyst in a fixed-bed continuous flow reactor. The catalyst exhibited high activity, selectivity, and stability, yielding 78% of 2-pentanone under mild reaction conditions for up to 20 hours.
BIOMASS & BIOENERGY
(2022)
Article
Chemistry, Applied
Chi Hieu Nguyen, Chun-Chieh Fu, Ze-Han Chen, Thi Tuong Van Tran, Shou-Hsuan Liu, Ruey-Shin Juang
Summary: The study modified SBA-15 particles with APTES, increasing the adsorption capacity for urea and creatinine. Competitive hydrogen bonding promoted the preferential adsorption of urea over hippuric acid in binary mixtures on the APTES-modified SBA-15 adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Chemical
Bo Wang, Zhentao Chen, Tao Jiang, Jiahuan Yu, Haoxuan Yang, Aijun Duan, Chunming Xu
Summary: This study synthesized a macromolecular organosulfur compound 2,8-DPPDBT and prepared three NiMo-supported SBA-15 catalysts with different pore sizes. The diffusion behaviors of the compound in the catalysts were investigated, and a correlation between effective diffusivity and the molecule-to-pore size ratio was proposed. This empirical correlation provides theoretical guidance for the design of efficient heavy oil hydrodesulfurization catalysts.
Article
Chemistry, Organic
Arash Ghorbani-Choghamarani, Zahra Taherinia
Summary: This article discusses the application of greener methods in the synthesis of sulfoxides and the study on sulfinylation reaction methods. Various compounds have been synthesized through different pathways, providing new insights into the preparation of sulfoxides.
Article
Chemistry, Applied
Farhad Khanmohammadi-Sarabi, Arash Ghorbani-Choghamarani, Hamid Aghavandi, Mohammad Ali Zolfigol
Summary: In this research project, silica-modified ZnFe2O4 magnetic nanoparticles were prepared and immobilized with ascorbic acid to produce an efficient catalyst. The physical and chemical properties of the catalyst were analyzed, and its catalytic activity was tested for the synthesis of specific derivatives. The catalyst showed good recyclability.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Multidisciplinary Sciences
Arash Ghorbani-Choghamarani, Zahra Taherinia, Yunes Abbasi Tyula
Summary: In this study, a metal-organic framework catalyst based on molybdenum and piperidine-4-carboxylic acid was synthesized and employed for biodiesel production. The catalyst exhibited high activity, thermal stability, and reusability.
SCIENTIFIC REPORTS
(2022)
Article
Chemistry, Physical
Abbas Rezaei, Arash Ghorbani-Choghamarani, Bahman Tahmasbi
Summary: In this study, a novel nickel metal-organic framework (Ni-DAMP-MOF) was prepared using 4,6-diamino-2-mercaptopyrimidine as a chelating agent. The MOF showed high catalytic activity and selectivity in the synthesis of pyranopyrazoles and oxidation of sulfides.
Article
Energy & Fuels
Ali Naghipour, Arash Ghorbani-Choghamarani, Zahra Taherinia
Summary: In this study, a mesoporous heterogeneous nanocatalyst was successfully synthesized and applied in the esterification process for biodiesel production. The catalyst showed high activity and stability, making it suitable for rapid production of high-quality biodiesel.
Article
Chemistry, Multidisciplinary
Farhad Khanmohammadi-Sarabi, Arash Ghorbani-Choghamarani, Hamid Aghavandi, Mohammad Ali Zolfigol
Summary: In this study, a novel nanomagnetic solid catalyst, ZnFe2O4@SiO2@l-methionine-Zr, was synthesized, which contains zirconium catalytic sites on the surface of ZnFe2O4 MNPs. A new and efficient magnetic material was designed and prepared by immobilizing the l-methionine complex of zirconium on ZnFe2O4@SiO2 nanoparticles. The proposed catalyst was characterized and successfully applied in the synthesis of tetrazoles and polyhydroquinoline derivatives. The use of this heterogeneous nanocatalyst in the mentioned organic reactions offers good results, such as the use of commercially available chemicals, inexpensive starting materials, high reaction efficiencies, easy recovery, and reusability of the catalyst for at least five continuous cycles.
NEW JOURNAL OF CHEMISTRY
(2023)
Article
Chemistry, Organic
Hamid Aghavandi, Arash Ghorbani-Choghamarani, Masoud Mohammadi
Summary: In this work, a novel Praseodymium complex immobilized onto the SBA-15 channels was synthesized by a simple procedure. The designed catalyst showed excellent performance in the synthesis of bis(pyrazolyl)methane derivatives.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Hamid Aghavandi, Arash Ghorbani-Choghamarani
Summary: In this work, a novel and green nanomagnetic solid acid catalyst, ZnFe2O4@SiO2-SO3H, was synthesized and identified. The catalyst contains sulfuric acid catalytic sites on the surface of ZnFe2O4 magnetic nanoparticles. The synthesized catalyst was accurately characterized by various physicochemical methods. It was found to have excellent catalytic activity for the synthesis of tetrahydrobenzo[b]pyran and DHQZ in ethanol solvent, with yields of 86-97%. The heterogeneous nature of the catalyst was confirmed and its recyclability was demonstrated with negligible loss of activity (97-92%). The amount of sulfamic acid in ZnFe2O4@SiO2-SO3H was determined through back titration.
RESEARCH ON CHEMICAL INTERMEDIATES
(2023)
Article
Chemistry, Multidisciplinary
Zahra Moradi, Arash Ghorbani-Choghamarani
Summary: This research project introduces the preparation of a new mesoporous silica compound (AGC-ZM-2022) using a fatty acid as a template. Palmitic acid, a commonly found saturated fatty acid in animals, plants, and microorganisms, was used as the template to design the mesoporous silica compound. AGC-ZM-2022 was synthesized through the sol-gel method, using tetraethylorthosilicate as the silica source and palmitic acid as the template instead of traditional templates. The physical properties and structure of AGC-ZM-2022 were characterized using various techniques such as FT-IR, SEM, XRD, TEM, and BET.
Article
Chemistry, Physical
Arash Ghorbani-Choghamarani, Zahra Taherinia
Summary: Metal sulfide is a compound semiconductor material that can exist in different forms of metallic ions. Layered transition metal sulfide, such as VS2 and VS4, has attracted significant interest due to its similarity to graphene and its diverse applications in fields including photoelectric devices, electro-catalysis, batteries, and energy storage. This study presents a practical synthetic method to form mesoporous vanadium sulfides with controlled morphologies by adjusting the molar ratio of vanadium acetylacetonate and L-cysteine using a one-step solvothermal method. The catalytic activity of these vanadium sulfides was investigated in several reactions, and their structural properties were characterized using various techniques.
MOLECULAR CATALYSIS
(2023)
Article
Chemistry, Multidisciplinary
Masoud Mohammadi, Arash Ghorbani-Choghamarani, Noorullah Hussain-Khil
Summary: In this study, a novel chelan complex - L-aspartic acid with copper (II) - is developed on the surface of silica-modified nanomagnetic zirconium ferrite as a new catalytic support. The resulting complex exhibits significant catalytic activity in the synthesis of Pyrano[2,3-c]pyrazoles and 2-amino-3-cyanopyridine derivatives. Mechanistic studies revealed a similar reaction sequence for both reactions, with an additional oxidation step for the synthesis of 2-amino-3-cyanopyridines to pyridines. Various aryl and hetero-aryl aldehydes were employed for the synthesis of six-membered heterocycles.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Multidisciplinary Sciences
Zahra Moradi, Arash Ghorbani-Choghamarani
Summary: In this study, a new type of magnetic mesoporous material (Fe3O4@SiO2@KIT-6@2-ATP@Cu-I) was designed and synthesized, and its application in the synthesis of amides and anilines was investigated. The structure of Fe3O4@SiO2@KIT-6@2-ATP@Cu-I was characterized and identified using various techniques. The synthesized catalyst can be easily removed from the reaction medium using an external magnet and can be reused multiple times.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Organic
Ali Reza Ataee-Najari, Mahmoud Zarei, Hossein Ahmadi, Mohammad Ali Zolfigol, Arash Ghorbani-Choghamarani, Mojtaba Hosseinifard
Summary: In this research, [Zr-UiO-66-CO2H]Br was introduced as a versatile heterogeneous acid catalyst for the ring-opening of epoxides. The study also discusses the appropriate method for designing an active and efficient Bronsted acid site in metal-organic frameworks. [Zr-UiO-66-CO2H]Br was successfully used for the preparation of a-aryloxy alcohols under mild and green conditions.
POLYCYCLIC AROMATIC COMPOUNDS
(2023)
Article
Chemistry, Multidisciplinary
Zeinab Shirvandi, Arash Ghorbani-Choghamarani, Amin Rostami
Summary: In this study, a new palladium nanocatalyst supported on l-threonine functionalized magnetic mesocellular silica foams was synthesized and characterized. The catalyst showed excellent catalytic activity for Stille, Suzuki, and Heck coupling reactions, and could be recovered and reused for at least five consecutive runs without losing activity by applying an external magnetic field.
Article
Chemistry, Multidisciplinary
Mitra Darabi, Mohsen Nikoorazm, Bahman Tahmasbi, Arash Ghorbani-Choghamarani
Summary: In this study, a novel and green heterogeneous catalyst KIT-6@SMTU@Ni was successfully synthesized via a new method of Ni(ii) complex stabilization on modified mesoporous KIT-6. The synthesized catalyst was characterized using various techniques. It was found to be efficient in the synthesis of 5-substituted 1H-tetrazoles and pyranopyrazoles, with high yields and reasonable reaction times. The catalyst also exhibited excellent reusability and had other advantages such as using green solvents and commercially available materials.
Article
Chemistry, Inorganic & Nuclear
Masoume Malmir, Majid M. Heravi, Zahra Yekke-Ghasemi, Masoud Mirzaei
Summary: In this study, a tri-component composite consisting of Fe3O4 nanoparticles, Keggin-type polyoxometalate, and graphene oxide was prepared and investigated as a catalyst for the oxidation of sulfides to sulfoxides. The catalyst showed excellent stability, high yields, and recyclability, making it a promising choice for organic-inorganic hybrid catalytic reactions conducted under mild conditions.
Article
Chemistry, Inorganic & Nuclear
Samuel D. Juarez-Escamilla, Sriloy Dey, Bruno Donnadieu, T. Keith Hollis
Summary: In this study, a bidentate Mo complex was synthesized using metalation and transmetalation methodology. The synthesis was optimized to achieve a high yield. The crystal structure of the bidentate complex was determined. Additionally, alternative forms of ligands were discovered in the reaction.
Article
Chemistry, Inorganic & Nuclear
Mohamed H. Abdel-Rhman, Ghada Samir, Mostafa A. Hussien, Nasser M. Hosny
Summary: This study investigated the dissolution performance of hydrazine carbonate solution on zirconium dibutyl phosphate (Zr-DBP), and found that hydrazine carbonate solution could promote the dissolution of Zr-DBP. The effects of dissolution temperature and hydrogen peroxide concentration on the dissolution efficiency were also explored, and the corrosion effect on stainless steel by hydrazine carbonate solution was studied.
Article
Chemistry, Inorganic & Nuclear
Qiaofang Fu, Fangyu Tan, Wu Ying
Summary: This study successfully prepared vermiculite/g-C3N4/TiO2 composites and found that under specific conditions, the composites exhibited excellent degradation effects, with a high degradation rate for methylene blue. Additionally, the composites were able to enhance surface area, reduce carrier loading rate, improve light energy utilization, and enhance durability.
Article
Chemistry, Inorganic & Nuclear
Annabelle G. W. Hodson, Robert T. Mason
Summary: Functionalised polystyrene resins have been found to be efficient catalysts in the synthesis of specific complexes, with the conversion rate controlled by the polymer structure. The addition of amines or amino acids can further yield substituted 13-butadienyl complexes, which have been analyzed by NMR.
Article
Chemistry, Inorganic & Nuclear
C. Kavitha, S. Anbarasan, P. Subramaniam
Summary: The sulfoxidation of PMAAs by the oxo(salen)chromium(V) complex in aqueous acetonitrile medium was studied. The rate of the reaction is influenced by the polarity of the medium and the substituents on PMAA, with electron donating substituents accelerating the reaction and electron withdrawing substituents retarding the reaction.
Article
Chemistry, Inorganic & Nuclear
Qiang-Qiang Liu, Mithun Kumar Ghosh, Shu-Lan Cai, Xiao-Hong Liu, Lu Lu, Mohd. Muddassir, Tanmay Kumar Ghorai, Jun Wang
Summary: Three newly developed coordination polymers (CPs) with semiconducting properties were synthesized using hydrothermal methods. These CPs exhibit superior photocatalytic activity and can degrade organic pollutants effectively.
Article
Chemistry, Inorganic & Nuclear
Mehrnaz Aliahmadi, Ali Nemati Kharat, Jan Janczak
Summary: This study proposes a method for synthesizing allyl alcohol using cost-effective and renewable bio-resource glycerol. By utilizing catalysts, alcohol as a solvent, and a reducing agent, allyl alcohol with an efficiency of 100% was obtained. The structures of the newly synthesized complexes were determined using X-ray single crystallography.
Article
Chemistry, Inorganic & Nuclear
Ji-Yan Gao, Nan Zhang, Dong-Sheng Huang, Xiang-Rong Liu, Zai-Wen Yang, Shun-Sheng Zhao
Summary: Two new transition metal complexes I and II were synthesized and characterized. The complexes exhibited strong thermal stabilities and showed effective binding to CT-DNA and BSA. Complex II exhibited stronger inhibition activity against P. aeruginosa than gentamicin sulfate. These complexes have potential applications in drug research.
Article
Chemistry, Inorganic & Nuclear
Rishabh Ujjval, Hilal Ahmad Khan, Chinnappan Sivasankar, Natesan Thirupathi
Summary: In this study, a rigid 2-aminobenzimidazole type guanidine and its platinum complexes were synthesized through a series of reactions and characterized by various physical and chemical methods. The reaction mechanism was also explained through DFT calculations.
Article
Chemistry, Inorganic & Nuclear
Marcelo Carpes Nunes, Thais Zaboenco, Vinicius Kemper Melara, Gabriel Barros Baptistella, Andre Luiz Barboza Formiga, Andersson Barison, Fabio Souza Nunes
Summary: A new luminescent molecular thermometer has been developed, which uses the spin-crossover equilibrium of a nickelcyclen derivative to measure temperature. The sensor shows high sensitivity and accuracy.
Article
Chemistry, Inorganic & Nuclear
Yuyu Shan, Zhenqin Zhao, Xia Zhang, Zhan Wu, Xiu-Ling Li
Summary: In this study, a new bridging ligand was synthesized through refluxing, and two mononuclear Cu(I) complexes and two trinuclear Cu(I)-Eu(III) complexes were obtained through self-assembly. The Cu(I) antenna chromophores successfully transferred energy to the Eu(III) centers, achieving sensitized Eu(III) luminescence.
Article
Chemistry, Inorganic & Nuclear
Gabriela Sanchez-Lecuona, Mayra C. Vazquez-Nunez, Bruno Donnadieu, Miguel A. Munoz-Hernandez, Virginia Montiel-Palma
Summary: The reaction of RuHCl(PPh3)3 with GaMe3 has been studied and the obtained complexes were analyzed in detail. The results indicate the formation of a Ru-Ga bond, suggesting the generation of an in situ formed ambiphilic phosphinogallyl ligand. This is of significance for understanding the interaction between metal-halogen bonds and metal-small molecule bonds.
Article
Chemistry, Inorganic & Nuclear
Sevil Sener, Nursel Acar, Fatih Dumludag
Summary: The synthesis, characterization, spectroscopic and bonding features of a new Co (II) phthalocyanine compound containing two thiocarbohydrazone groups were explained. The compound showed semiconductor properties and potential as a temperature sensor.
Article
Chemistry, Inorganic & Nuclear
Ledja B. O. Davi, Aryanna S. P. N. Costa, Mariana S. Silva, Adriana S. Ribeiro, Cintya D. A. E. S. Barbosa, Julio C. S. Da Silva, Dimas J. P. Lima, Daniela S. Anunciacao
Summary: In this study, a dansyl derivative sensor called o-PDDS was prepared and used for the detection of Al3+ ions in water. The o-PDDS sensor exhibited high sensitivity and linear response towards Al3+ ions. Experimental and computational studies confirmed a 1:1 stoichiometry ratio between o-PDDS and Al3+ ions. Real sample analysis demonstrated the selectivity and detection performance of the sensor, indicating its potential for field use.
