Article
Chemistry, Physical
Nitish Deshpande, Jee-Yee Chen, Takeshi Kobayashi, Eun Hyun Cho, Hannah Pineault, Li -Chiang Lin, Nicholas A. Brunelli
Summary: This study investigates the impact of micropores on the catalytic activity of aminosilica materials. By comparing materials with micropores and materials with negligible micropore volume, it is found that the materials with negligible micropore volume exhibit higher catalytic activity in a range of reactions.
JOURNAL OF CATALYSIS
(2022)
Article
Biotechnology & Applied Microbiology
Hengmin Miao, Maosheng Li, Fang Wang, Jiao Li, Ying-Wu Lin, Jiakun Xu
Summary: In this study, the mesoporous molecular sieve SBA-15 was successfully modified with APTES and GPTMS, resulting in improved immobilization of Mb and enhanced reusability and storage stability.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Physical
Feng Wu, Juan Du, Na Liu, Jie Xu, Bing Xue
Summary: In this study, potassium-doped carbon nitride materials supported on SBA-15 (CN/SBA15-KCl) were successfully prepared and showed high catalytic performance in Knoevenagel condensation reaction. The incorporation of potassium enhanced the basic strength of CN/SBA15, leading to improved catalytic activity.
APPLIED CATALYSIS A-GENERAL
(2022)
Article
Biotechnology & Applied Microbiology
Hengmin Miao, Maosheng Li, Xiaochun Sun, Jikun Xia, Yanqing Li, Jiao Li, Fang Wang, Jiakun Xu
Summary: A series of stable mesoporous silica sieves with different pore sizes were synthesized, and the effects of pore size and adsorption methods on protein immobilization efficiency were studied. The SBA-15 with a pore size of 7.2 nm showed the best loading capacity, while the SBA-15 with a pore size of 9.8 nm showed the highest retained catalytic ability.
FRONTIERS IN BIOENGINEERING AND BIOTECHNOLOGY
(2022)
Article
Chemistry, Multidisciplinary
Graziano Di Carmine, Luke Forster, Simeng Wang, Christopher Parlett, Armando Carlone, Carmine D'Agostino
Summary: The immobilisation of organocatalysts onto solid supports is a promising solution to enhance their productivity by enabling their reuse. In this study, NMR relaxation measurements combined with reaction screening were used to investigate the influence of solvent interactions with the immobilised catalyst matrix on the reactivity of an asymmetric organocatalysed aldol reaction. Important insights for the further development of such complex and promising catalytic systems are provided.
REACTION CHEMISTRY & ENGINEERING
(2022)
Article
Chemistry, Multidisciplinary
Na Liu, Feng Wu, Jie Xu, Fei Wang, Bing Xue, Jun Luo
Summary: In this study, CN/SBA15 catalysts were prepared by impregnation method and applied in the Knoevenagel condensation reaction. The catalysts were characterized by various analytical techniques and the results showed that the introduction of carbon nitride maintained the ordered mesoporous structure of SBA-15. The distribution of nitrogen-containing functional groups in the CN/SBA15 catalysts could be controlled by adjusting the calcination temperature. The CN/SBA15-400 catalysts exhibited excellent catalytic activity in the Knoevenagel condensation reaction.
RESEARCH ON CHEMICAL INTERMEDIATES
(2022)
Article
Biochemistry & Molecular Biology
Xin Wang, Lihong He, Jianrong Huang, Nanjing Zhong
Summary: In this study, immobilized lipases were carefully studied for their hydrolysis activity and glycerolysis performance. The mechanism of lipase immobilization through interfacial activation was explored. The modification of SBA-15 by halogen & haloalkanes showed considerable glycerolysis activity for the preparation of diacylglycerols (DAG).
INTERNATIONAL JOURNAL OF BIOLOGICAL MACROMOLECULES
(2021)
Article
Materials Science, Ceramics
Yi Ding, Weijie Fan, Zhenyu Chen, Zhen Li, Yuan Liu, Hui Dan, Tao Duan
Summary: Mesoporous ZrO2/SBA-15 was utilized for efficient enrichment and immobilization of uranium in radioactive wastewater. The enriched uranium was transformed into stable ZrSiO4-U ceramics through sintering, demonstrating good aqueous durability. This material shows promise for actual applications in treating U-containing radioactive wastewater due to its high adsorption capacity and durability.
CERAMICS INTERNATIONAL
(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
Engineering, Environmental
Jiantao Liang, Weirui Chen, Gaozu Liao, Jing Wang, Xipeng Wei, Yiming Tang, Xukai Li, Laisheng Li
Summary: A facile hydrothermal method was proposed to regulate the pore structure and introduce Ce-based Lewis sites within Ce-SBA-15, named as Ce-SBA-U. The mesoporous size of Ce-SBA-U could be enlarged by urea dosage, facilitating the mass transfer of ozone and its activation on Ce(III)-based Lewis sites. The Ce-SBA-U/O3 process achieved high removal rates of clofibric acid (CA) and TOC, indicating its superior performance compared to sole ozonation and Ce-SBA-15/O3 processes.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Energy & Fuels
Pawanpreet Kaur, Harish Kumar Chopra
Summary: In this study, SBA-15 supported benzimidazolium-based ionic liquid was synthesized and characterized. The results showed that the supported ionic liquids exhibited higher efficiency for the adsorption of sulfur compounds and the removal of sulfurous compounds from model fuel and real gasoline samples. Furthermore, the adsorbents showed good reusability.
Article
Chemistry, Multidisciplinary
Shaoqing Liu, Xueyan Hou, Aihao Xu, Bingxian Chu, Yunxi Li, Lijian Jin, Jinkai Lu, Lihui Dong, Minguang Fan
Summary: This study describes the synthesis of a new type of catalyst, SBA-M (Schiff complex of different metal types grafted on SBA-15), based on a quaternization reaction. The post-grafting method was used to selectively graft various amounts of ionic liquid into the pore channels of SBA-15. The study also proposes a reaction mechanism for the cycloaddition of CO2 with epoxides and explores a new approach for CO2 conversion.
CHEMISTRY-A EUROPEAN JOURNAL
(2022)
Article
Chemistry, Applied
Pawanpreet Kaur, Harish Kumar Chopra
Summary: In this study, organosilane-modified benzoxazolium-based ionic liquids were synthesized and immobilized on SBA-15 silica support to form supported ionic liquids (SILs). The structure of SILs was determined using various techniques, and their adsorption abilities were tested in the desulfurization of gasoline samples. The SIL adsorbents showed higher efficiency compared to SBA-15 due to interactions between the supported ionic liquids and thiophene compounds.
FUEL PROCESSING TECHNOLOGY
(2022)
Article
Materials Science, Multidisciplinary
Reza Ezzatkhah, Zohreh Rahimi-Ahar, Aziz Babapoor, Mahin Nemati Tasandeh, Sina Yaghoubi, Farrokhfar Valizadeh Harzand
Summary: This study investigated the adsorption of chromium, cadmium, and lead ions on mesoporous silica SBA-15 functionalized with the urea amine group. The results showed that the modified adsorbent had a high adsorption capacity for the heavy metal ions, making it promising for water treatment applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Inorganic & Nuclear
Hongtai Chen, Liming Fan, Tuoping Hu, Xiutang Zhang
Summary: The exquisite combination of Ba2+ and Zn2+ with H6TDP under solvothermal self-assembly conditions generates a highly stable 2D-based organic framework NUC-27, which displays a unique Z-shaped heterometallic cluster structure for efficient catalysis on the chemical transformation of epoxides and CO2.
INORGANIC CHEMISTRY
(2021)
Article
Chemistry, Inorganic & Nuclear
Chandra Sekhar Dash, Jothi Ramalingam Rajabathar, Hamad Al-Lohedan, Selvaraj Arokiyaraj, S. Ramachandran, M. Sukumar, R. Revathi, G. Anitha, M. Sundararajan
Summary: CoAl2O4 and Zn:CoAl2O4 nanoparticles were synthesized via microwave combustion process using L-alanine as fuel. The nanoparticles exhibited spherical aggregated particle morphology with an average crystallite size in the range of 10-18 nm, and no impurities were detected in the samples.
INORGANIC AND NANO-METAL CHEMISTRY
(2023)
Article
Chemistry, Inorganic & Nuclear
Chandra Sekhar Dash, M. Sukumar, V Ravi, G. Anitha, Jothi Ramalingam Rajabathar, Khadijah Mohammedsaleh Katubi, Norah Salem Alsaiari, Khamael M. Abualnaja, R. Rajkumar, M. Kamalakannan, M. Sundararajan, A. Sutha
Summary: Zinc doped Co3O4 spinel nanoparticles were prepared using the microwave-assisted combustion process. The structural and catalytic properties of the samples were investigated, and it was found that the addition of zinc ions affected the structure and catalytic activity, with high doping concentration exhibiting excellent catalytic performance.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Mathematics, Applied
V. Sree Hari Rao, T. S. L. Radhika
Summary: This paper introduces a realistic framework for blood flow dynamics in the human circulatory system, discussing the characteristics change of blood in different arteries and the nonlinear relationship between flux and pressure gradient. By considering the varying material properties of blood in different constituent pipes, researchers gain a better understanding of issues related to blood circulation.
DIFFERENTIAL EQUATIONS AND DYNAMICAL SYSTEMS
(2023)
Article
Energy & Fuels
S. Naveen Kumar, R. Jothi Ramalingam, Muthusamy Karnan, N. P. Kavitha
Summary: Photo-fenton membrane bioreactor (PFMBR) is a wastewater treatment method combining Advanced Oxidation Process (AOP) and membrane bioreactor to meet strict limits. It achieves a 98% reduction in Chemical Oxygen Demand (COD) and a 60% reduction in Total Dissolved Solids (TDS). Gas chromatography analysis confirms the complete degradation of pharmaceutical compounds. The use of lumped kinetics modeling predicts the degradation of organic/inorganic pollutants, with an overall activation energy of 51.79 kJ/mol.
CHEMICAL ENGINEERING AND PROCESSING-PROCESS INTENSIFICATION
(2023)
Correction
Engineering, Electrical & Electronic
Jothi Ramalingam Rajabathar, Radhika Thankappan, Hamad AL-Lohedan, Hassan A. Al-Sigh
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Jothi Ramalingam Rajabathar, Radhika Thankappan, Hamad AL-Lohedan, Hassan A. Al-Sigh
Summary: In this study, Ca3Co4O9 +/-delta ceramic oxide was synthesized using various reducing agents, including citric acid, starch polymer, and polyethylene glycol. The structural and surface characteristics of the prepared Ca3Co4O9+delta were analyzed using XRD, TGA, and diffuse UV-visible spectral analysis. The hydrothermal method-prepared Iron-doped Ca3Co4O9 +/- delta ceramic exhibited a nanorod morphology and showed promising thermoelectric features.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Chemistry, Physical
S. K. Gagan Kumar, A. S. Santhosh, S. Sumana, A. M. Trishul, S. Sandeep, C. S. Karthik, Jothi Ramalingam Rajabathar, Arokiyaraj Selvaraj
Summary: In this research, a new nanocomposite of lanthanum tungstate/silver nanoparticle/graphene nano-ribbons (LaW/Ag/GNRs) was synthesized for the simultaneous electrochemical determination of two synthetic food colorants. The nanocomposite modified graphite electrode exhibited enhanced analytical performance with low detection limits for the colorants. The nanocomposite also showed promise as an anode material in lithium ion batteries, demonstrating improved cycle performance, rate capability, and discharge capacity.
SURFACES AND INTERFACES
(2023)
Article
Nanoscience & Nanotechnology
G. Anitha, R. Jothiramalingam, M. Sukumar, A. Roniboss, S. Yuvaraj, G. Ramkumar, M. Sundararajan, S. Arokiyaraj
Summary: Strontium substituted CoAl2O4 nanoparticles were synthesized using microwave combustion technique with L-alanine as fuel. Various techniques including XRD, HR-SEM, EDX, DRS, FT-IR and VSM were employed to analyze the synthesized samples. The nanoparticles exhibited nanosized crystalline grains with agglomeration, flake-like nano-sized pores, and fused grain boundaries. The band gap of the nanoparticles was reduced from 3.32 to 3.18 eV. The FT-IR bands in the range of 560 to 1100 cm-1 were attributed to the cubic structure of Sr2+ doped CoAl2O4 nanoparticles. The CoAl2O4/SrO (x = 0.5) nanoparticles showed excellent catalytic performance and higher conversion efficiency (98% conversion and 95% selectivity) for glycerol.
DIGEST JOURNAL OF NANOMATERIALS AND BIOSTRUCTURES
(2023)
Article
Engineering, Electrical & Electronic
N. Elumalai, C. Balaji, S. Masilamani, S. Harish, M. Navaneethan, Jothi Ramalingam Rajabathar, Hamad Al-lohedan, Manickam Selvaraj, R. Ramesh, P. Ramu
Summary: Metal-organic frameworks (MOF) derived nanocomposites have potential for electrochemical energy storage applications. The ZnO/ZnFe2O4 nanocomposites obtained through thermal treatment at different temperatures show increased crystallinity and exceptional specific capacitance at 500°C.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Engineering, Electrical & Electronic
Ranjith Balu, Gautham Devendrapandi, M. Sumithra Devi, Jothi Ramalingam Rajabathar, Hamad A. Al-lohedan, Dhaifallah M. Al-dhayan
Summary: The Dl-2-Aminobutanoate tartrate (D2ABT) single crystal was grown using the slow evaporation solution method at room temperature. The crystal structure, functional groups, optical quality, thermal behavior, and surface morphology of the grown crystal were studied. Density functional theory was applied to investigate its Hirshfeld surface properties. The grown crystal (D2ABT) exhibits outstanding physicochemical properties and holds significant value in optical and biological applications.
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2023)
Article
Materials Science, Multidisciplinary
R. Jothiramalingam, H. Al-Lohedan, A. Karami
Summary: Copper-doped NiFe2O4 spinel nanoparticles were successfully fabricated using a simple microwave combustion technique. The addition of copper resulted in the formation of an alpha-Fe2O3 secondary phase and narrowing of the band gap. Photocatalytic degradation experiments demonstrated that copper doping significantly enhanced the photocatalytic performance of pure NiFe2O4.
JOURNAL OF OVONIC RESEARCH
(2023)
Article
Green & Sustainable Science & Technology
Govindhasamy Murugadoss, Thiruppathi Kannappan, Jothi Ramalingam Rajabathar, Rajesh Kumar Manavalan, Shyju Thankaraj Salammal, Nachimuthu Venkatesh
Summary: The development of a heterojunction nanocomposite has improved optoelectronic properties. In this study, cerium oxide (CeO2), copper oxide (CuO), and ceria-copper-copper hydroxide (CeO2-CuO-Cu(OH)(2)) nanocomposites were prepared and their structural, morphological, and optical properties were investigated. The integration of CeO2 and CuO with Cu(OH)(2) modified the band gap, leading to improved photocatalytic efficiency. CeO2 enhanced light absorption, while CuO acted as an electron trap in the composite, resulting in enhanced optical properties. The heterojunction combination in the nanocomposite facilitated charge separation and increased charge participation in catalyzed conversion reactions. The highest photocatalytic degradation efficiencies were achieved using the CeO2-CuO-Cu(OH)(2) nanocomposite for fast green (96.4%) and bromophenol blue (92.7%).
Article
Materials Science, Multidisciplinary
R. Jothiramalingam, T. Radika, H. A. Lohedan, M. Karnanc, D. M. Al-dhayana
Summary: Growing interest in thermal energy conversion into useful electrical energy has led to increased focus on energy harvesting. Titania nanofluid was prepared using low-cost precursors and hydrothermal method, and characterized using XRD, Raman, and UV-Visible spectrometric methods. The particle size was determined through Zeta potential study. The miscibility, viscosity, and sedimentation properties of the prepared titanium dioxide nanofluid particles were studied in various mixed solvent media. Nanofluids with different concentrations of TiO2 nanoparticles were prepared and their physico-chemical properties were examined. The prepared TiO2 nanoparticles showed clear settled solution after the addition of suitable solvent medium and preparation method.
JOURNAL OF OVONIC RESEARCH
(2023)
Article
Chemistry, Inorganic & Nuclear
A. Tony Dhiwahar, S. Revathi, N. Mohamed Basith, Jothi Ramalingam Rajabathar, Hamad Al-Lohaedan, M. Kamalakannan, M. Sundararajan, Chandra Sekhar Dash, R. Srimathi, Gulja S. Nair, Muthusamy Karnan, L. Rajadurai
Summary: Microwave combustion method was used to synthesize Mn-doped CuFe2O4 nanoparticles, which exhibited good photocatalytic performance in the degradation of rhodamine B under visible light.
JOURNAL OF CLUSTER SCIENCE
(2023)
Article
Chemistry, Physical
Adhikesavan Harikrishnan, Vijaykumar Veena, Roshini Kancharla, Sakshi Chavan, Jothi Ramalingam Rajabathar, Hamad Al-Lohedan, Saravanan Pandiaraj, Ponmurugan Karuppiah, Selvaraj Arokiyaraj
Summary: The study identified neoandrographolide from Andrographis paniculata as a potential anticancer molecule that exhibits a strong interaction with PI3K, a protein associated with breast cancer.
JOURNAL OF MOLECULAR STRUCTURE
(2023)
Article
Chemistry, Applied
Lulu Wan, Gan Ye, Yuying Chang, Zhaohan Yang, Guangming Shi, Qiuli Zhang, Jin Wang
Summary: This study developed an efficient approach to upgrade the oxidative desulfurization (ODS) performance of Zr-MOFs with proton stimulation. Experimental results showed that the introduction of protons can significantly improve the ODS efficiency. This work provides a facile and efficient strategy for enhancing the ODS performance of pristine MOFs.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Qiqi Lu, Xiu-Zhi Wei, Qi Zhang, Xinghua Zhang, Lungang Chen, Jianguo Liu, Yubao Chen, Longlong Ma
Summary: The application of Pd-M bimetallic clusters in the selective hydrogenation reaction was investigated, and the Pd0.6Ni@S-1 catalyst was found to exhibit high selectivity in the conversion of phenylacetylene to styrene. The confinement effect of zeolite inhibited over-hydrogenation and improved the stability of the catalysts. Furthermore, the solvent properties also influenced the product distribution.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Review
Chemistry, Applied
Bo Li, Lumin Hong, Changdi Jing, Xianyang Yue, Huabo Huang, Qianqian Jiang, Jianguo Tang
Summary: MOF materials with adjustable pore structure and polymetallic sites have been explored as electrocatalysts for OER. Bimetallic materials show higher electrocatalytic activity than monometallic materials, while carbon-coated and doped MOF catalysts exhibit stable and good OER activity. The synergistic interaction between polymetallic active sites effectively improves the intrinsic activity of MOF on OER.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shichun Gu, Ruyi Wang, Junxiong Zhang, Hairong Dong, Liping Deng, Xue Wang, Yapeng He
Summary: In this study, monodispersed hollow mesoporous organosilica nanospheres with controlled core cavity and mesoporous shell were successfully synthesized. These hollow nanospheres showed a high adsorption capacity for Pb2+ in water solution and exhibited acceptable recycling and stability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Lucie Havelkova, Bogdana Bashta, Michaela Vankova, Jiri Zednik, Jiri Brus, Jan Svoboda, Alice Vagenknechtova, Jan Sedlacek
Summary: An atom-economic one-step chain-growth coordination homopolymerization providing high yields of functionalized hyper-cross-linked polyacetylenes with a permanent micro/mesoporous texture and a BET area of up to 1062 m2/g is reported. The homopolymerization is highly compatible with the heteroatom groups of the monomers and allows the preparation of well-defined porous networks with a wide spectrum of univalent groups.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Shirui Pang, Yuxin Liu, Zhe Zhang, Yuxin Li, Chunguang Li, Zhan Shi, Shouhua Feng
Summary: This study focuses on using a functional separator to suppress the shuttle effect of soluble lithium polysulfides in Li-S batteries. It is found that the functionalized sulfonic acid group not only accelerates the conduction of lithium ions, but also repels polysulfide anions through electrostatic interactions. The performance of the batteries is significantly improved with the use of this functionalized separator.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Pingping Li, Lei Han, Donghun Kim, Kemal Celebi
Summary: This study presents a fast synthetic strategy for the preparation of high-quality platelike MFI crystals using a thin-wall tubular reactor. The strategy is efficient, time-saving, and can be optimized, making it applicable to the preparation and optimization of other important materials.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Haitao Yin, Wei Wang, Yuxin Li, Hu Wen, Shuang Chen, Nanzhe Jiang
Summary: This study presents a template-free and solid-state-like crystallisation method for the synthesis of ZSM-5 zeolite, which can be scaled-up in production. Mechanical mixing of starting material components improves the dispersion of materials, leading to ZSM-5 zeolite with high crystallinity and size uniformity.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Congli Li, Jiang Wang, Zhenfei Wang, Jinxiang Dong, Qi Shi
Summary: This study investigates the evolution and autoreduction behavior of Cu species in CuCl/NaY adsorbent during vacuum thermal activation. It is found that Cu species migrate from supercages to the nearby plane of the six-membered ring connecting the supercage and sod cage during vacuum activation. At 150 degrees C, vacuum autoreduction occurs, resulting in the formation of Cu+Cl- species. The results provide reference for the preparation of pi-complex adsorbents.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Irena Khatrin, Iman Abdullah, Alan J. Mccue, Yuni K. Krisnandi
Summary: Hierarchical porous system with two types of mesopores provides a solution to the diffusion limitation in conventional zeolites. Cobalt oxide impregnated hierarchical ZSM-5 zeolite samples with intra- and inter-crystalline mesopores were synthesized using two different strategies. The physicochemical properties of the modified catalysts were analyzed, revealing distinct features given by the two mesoporous configurations. Catalytic activity analysis showed that Co-oxide/ZSM-5 with inter-crystalline mesopores exhibited higher activity in methane partial oxidation reaction compared to Co-oxide/ZSM-5 with intra-crystalline mesopores.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Nataliia Reinders, Martin Durovic, Pavla Honcova, Zaneta Dohnalova, Jana Luxova, Stanislav Slang, Jhonatan Rodriguez-Pereira, Petra S. Sulcova
Summary: This study presents a new method for preparing a microporous Ni2P/C catalyst with high catalytic activity. The redox reaction and carbon matrix formation during high-temperature treatment contribute to the stability and activity of the catalyst. Experimental and analytical results suggest that the microporous structure of the composite plays a crucial role in its catalytic performance. These findings are important for practical applications of efficient hydrogen production by water electrolysis.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Ana Raquel Bertao, Viktoriya Ivasiv, Cristina Almeida-Aguiar, Patricia R. Correia, Antonio M. Fonseca, Manuel Banobre-Lopez, Fatima Baltazar, Isabel C. Neves
Summary: This study developed a zeolite-based delivery system (ZDS) using silver and 5-Fluorouracil as antimicrobial and antineoplastic agents. The ZDS was characterized and its antimicrobial properties were investigated, showing better antibacterial effectiveness for the ZDS containing both silver and 5-FU.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Naonobu Katada, Nobuki Ozawa, Etsushi Tsuji, Keigo Kanehara, Akiho Otsuka, Taiga Sakamoto, Kirari Umezawa, Hitoshi Matsubara, Satoshi Suganuma, Momoji Kubo
Summary: First principles calculations were used to investigate the pathway for methylation of benzene with methane catalyzed by MFI type zeolite-supported Co species. The strong adsorption of benzene on Co is found to lower the activation energy for methane dissociation and promote the formation of toluene precursor. The activation energy of methane dissociation is also affected by the Al-Al distance.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Yuan Liu, An T. Ta, Kyoung Chul Park, Shenyang Hu, Natalia B. Shustova, Simon R. Phillpot
Summary: We use density functional theory to investigate the interactions of cerium, americium, and curium cations with crown ethers. Our results demonstrate that crown ethers can capture cerium, americium, and curium ions, and modifying the crown ether structure by substituting nitrogen atoms for oxygen atoms significantly increases their binding energies with radionuclides.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)
Article
Chemistry, Applied
Zhengwu Peng, Shixing Wang, Yihui Wu, Xiang Liu, Hongliang Liu, Dekun Zhang, Likang Fu
Summary: An efficient adsorbent for recovery of germanium was prepared and characterized in this study. The adsorption behavior of Ge(IV) on the adsorbent was analyzed, and the results showed that it follows pseudo-secondary kinetic model and Langmuir isotherm model. The adsorbent exhibited good anionic anti-interference ability and can still maintain high adsorption efficiency after repeated adsorption.
MICROPOROUS AND MESOPOROUS MATERIALS
(2024)