Article
Chemistry, Applied
J. J. Ternero-Hidalgo, M. Daturi, G. Clet, P. Bazin, M. A. Banares, R. Portela, M. O. Guerrero-Perez, J. Rodriguez-Mirasol, T. Cordero
Summary: Simultaneous operando Raman and transmission FTIR spectroscopic measurements were used to study the structure-activity relationships of V-Zr-O catalysts during propane oxidative dehydrogenation. The combination of both spectroscopies allowed the identification of reaction intermediates and provided structural information about the catalyst. The results suggested a Mars-van Krevelen mechanism and showed higher activity of bridging oxygen sites than terminal V--O bonds.
Article
Chemistry, Physical
Joanna Wisniewska, Izabela Sobczak, Maria Ziolek
Summary: This study investigated the effects of calcium and niobium on the activity of gold catalysts in methanol oxidation under different conditions. It was found that the presence of calcium and niobium had a synergistic effect on the activity of the gold catalyst, while niobium directed the selectivity of the reaction. The oxidation states and concentration of catalyst components remained unchanged during the methanol oxidation reaction.
CATALYSIS SCIENCE & TECHNOLOGY
(2021)
Article
Chemistry, Analytical
Mauricio Porras, Maria Esperanza Adrover, Marisa Pedernera, Veronica Bucala, Loreana Gallo
Summary: Albendazole is a poorly water-soluble crystalline drug, and mesoporous materials offer a promising strategy to increase its solubility. This study developed quantification techniques combining chemometric models with UV and FT-IR spectra to determine the drug loading content in mesoporous materials without drug release. The results showed that both UV and FT-IR models achieved excellent drug loading predictions, with high correlation coefficients and low errors. These techniques contribute to improving the time and cost of drug loading determination.
JOURNAL OF PHARMACEUTICAL AND BIOMEDICAL ANALYSIS
(2022)
Article
Chemistry, Physical
Agustin de Arriba, Benjamin Solsona, Ana M. Dejoz, Patricia Concepcion, Narcis Homs, Pilar Ramirez de la Piscina, Jose M. Lopez Nieto
Summary: Three samples representing the evolution of optimal catalytic systems for the oxidative dehydrogenation of ethane were synthesized and compared in terms of catalytic behavior and adsorption properties. The catalytic performance was found to differ mainly in the extent of overoxidation of the formed ethylene. The selectivity to ethylene was highest for the MoVTeNb-M1 catalyst, followed by the NiSnOx catalyst, and lowest for the VOx/Al2O3 catalyst. Microcalorimetry studies showed that the highest heat of adsorption for both ethane and ethylene was observed for the MoVTeNb-M1 catalyst.
JOURNAL OF CATALYSIS
(2022)
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, Physical
Lei Cao, Yi Qiu, Shizhong Luo, Chengfa Jiang, Fangli Jing
Summary: In this study, mesoporous Sn-SBA-15 materials with varied pore size were synthesized by changing the hydrothermal temperature, and PtSn oxides were dispersed within them using an impregnation method. The results showed that the pore size had significant effects on the properties and catalytic performance of the catalyst, with the optimal pore size being 8 nm.
MOLECULAR CATALYSIS
(2022)
Article
Food Science & Technology
Fan Wang, Yan-Ning Lin, Yu Xu, Yong-Bing Ba, Zhao-Huan Zhang, Li Zhao, Wing Lam, Fu-Lan Guan, Yong Zhao, Chang-Hua Xu
Summary: In this study, the molecular sterilization mechanism of acidic electrolyzed water (AEW) on Gram-positive and Gram-negative bacteria was demonstrated using various techniques. AEW mainly induced oligopeptide destruction in bacterial cell wall, forming holes and increasing cell membrane permeability. This allowed AEW to invade the cell and demolish nucleic acids and other bioactive substances, ultimately leading to cell death. The developed methodology could be a powerful tool for understanding cell response mechanisms to environmental stimuli.
Article
Chemistry, Applied
Yue Zhang, Li Wang, Nan Wang, Guohua Gao, Zhiyong Pan, Baoning Zong
Summary: Monodispersed mesoporous SBA-15 silica was synthesized by adding n-decane to conventional synthesis recipe, and the Pd catalyst prepared on it exhibited superior catalytic performance in 2-alkyl-anthraquinone hydrogenation.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Engineering, Environmental
Xiuqin Dong, Jianhang Tian, Junwei Lei, Yifei Chen
Summary: In this study, Cu-MnO/SBA-15 catalysts with high catalytic performance and stability were prepared, and the mechanism was elucidated through experiments and DFT calculations. The catalyst exhibited optimal catalytic hydrogenation activity and stability under an appropriate Cu/Mn ratio.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Pantita Trongjitraksa, Yoottapong Klinthongchai, Piyasan Praserthdam, Bunjerd Jongsomjit
Summary: This research investigates the catalytic activity of WO3 on SBA-15 and MCF-Si supports. The findings suggest that the three-dimensional mesocellular foam structure of MCF-Si and the incipient wetness impregnation of WO3 are crucial for obtaining a highly dispersed WO3 catalyst. Additionally, the high Lewis to Bronsted ratio of tungsten on silica is important for the catalytic dehydration of ethanol to ethylene.
JOURNAL OF THE TAIWAN INSTITUTE OF CHEMICAL ENGINEERS
(2023)
Article
Chemistry, Physical
Yue Zhang, Chunyu Zhang, Guozhu Liu, Li Wang, Zhiyong Pan
Summary: Ce-doped SBA-15 was synthesized and used as a support for Pd catalyst in the hydrogenation of EAQ. Ce species partly incorporated into SBA-15 framework and partly existed as extra-framework Ce and CeO2 particles. Ce species in the framework suppressed the aggregation of Pd particles. Ce-doped catalysts showed significantly enhanced catalytic performance compared with Pd/SBA-15.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Applied
H. Vargas-Villagran, D. Ramirez-Suarez, G. Ramirez-Munoz, L. A. Calzada, G. Gonzalez-Garcia, T. E. Klimova
Summary: The hydrogenation of naphthalene using nickel catalysts on SBA-15 and Al-SBA-15 supports was studied to evaluate the effect of support acidity. Catalysts prepared with Al-SBA-15 support and Ni:EDTA complex showed higher activity and selectivity towards decalins. This was attributed to better dispersion of metallic Ni species and higher total amount of acid sites.
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
Engineering, Chemical
Kejie Chai, Runqiu Shen, Tingting Qi, Jianli Chen, Weike Su, An Su
Summary: In this study, we designed a highly efficient and stable mesoporous catalyst, Pd@SBA-15, for continuous flow hydrogenation. The catalyst was constructed by impregnating palladium nanoparticles into the nanopores of mesoporous material SBA-15. The designed continuous flow system using the catalyst showed excellent catalytic performance with 99% conversion of nitroaromatics in 1 min.
Article
Chemistry, Applied
Lidan Deng, Qiao Chen, Xingmao Jiang, Xiaowei Liu, Zheng Wang
Summary: In this study, it was found that the catalytic performance of Pt/SBA-15 can be significantly improved by introducing an appropriate amount of indium. Among all catalysts tested, 1Pt1In/SBA-15 exhibited the highest initial propane conversion rate (57.06%) and selectivity towards propylene (99.04%). The catalytic activity decreased slightly after 28 hours of reaction, but the selectivity remained high at over 99%.
Article
Chemistry, Physical
Ferenc Martinovic, Fabio Alessandro Deorsola, Marco Armandi, Barbara Bonelli, Regina Palkovits, Samir Bensaid, Raffaele Pirone
Summary: A composite catalyst formed by mixing Cu-SSZ-13 with CeO2-SnO2 through solid-state synthesis showed resistance to hydrocarbon poisoning in NH3-mediated NOx-SCR reaction. The addition of CeO2-SnO2 enhanced the resistance towards propylene poisoning, with the primary active sites playing a complex role in preventing hydrocarbon poisoning. The mechanism proposed for deactivation and poisoning prevention involved HONO/nitrate intermediates formed over CeO2-SnO2 re-activating the zeolitic copper for SCR reaction, highlighting the importance of the interaction between different active sites.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2021)
Article
Chemistry, Physical
Quang Nguyen Tran, Olinda Gimello, Nathalie Tanchoux, Monica Ceretti, Stefania Albonetti, Werner Paulus, Barbara Bonelli, Francesco Di Renzo
Summary: LaAlO3 perovskites and their substitutions exhibit different catalytic behaviors in the gas-phase conversion of ethanol, mainly influenced by their acidic and basic properties. Copper and cobalt substituted materials are prone to forming surface oxygen vacancies, facilitating the self-condensation of acetaldehyde. Gallium substitution promotes both dehydrogenation of ethylene and dehydration of higher alcohols.
Article
Materials Science, Multidisciplinary
Anira Latif, A. Manan Memon, Tanveer A. Gadhi, Imtiaz Ali Bhurt, Najeebullah Channa, Rasool Bux Mahar, Imran Ali, Alessandro Chiado, Barbara Bonelli
Summary: 3D structured clay filters were synthesized using 3D printed molds and Bi2O3 photocatalyst was successfully immobilized on the surface. Characterization techniques confirmed the presence of the catalyst on the clay and revealed its potential for the treatment of organic pollutants.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Review
Chemistry, Multidisciplinary
Maela Manzoli, Francesca S. Freyria, Nicola Blangetti, Barbara Bonelli
Summary: This article reviews the advancements in the study of phase-pure brookite and brookite-containing TiO2 mixed phases, emphasizing their potential applications in photocatalysis. It is important to understand the roles of brookite-containing heterojunctions, surface properties, crystalline structure, and their influence on phase transitions for their applications in catalysis and electrochemistry.
Article
Chemistry, Physical
Melodj Dosa, Miguel Jose Marin-Figueredo, Enrico Sartoretti, Chiara Novara, Fabrizio Giorgis, Samir Bensaid, Debora Fino, Nunzio Russo, Marco Piumetti
Summary: In this study, a series of CuCeOx catalysts were prepared and their catalytic performances in CO and ethene oxidation reactions were investigated. The 20%CuCeOx catalyst exhibited the best catalytic properties in both reactions.
Article
Chemistry, Physical
Serena Esposito, Brigida Silvestri, Carmelina Rossano, Valeria Vermile, Claudio Imparato, Maela Manzoli, Barbara Bonelli, Vincenzo Russo, Eric M. Gaigneaux, Antonio Aronne, Martino Di Serio
Summary: The transformation of GVL into LA requires the use of bifunctional catalysts synthesized by solgel route. The interaction between the metals and their relative amount and dispersion play a crucial role in determining the catalytic activity.
APPLIED CATALYSIS B-ENVIRONMENTAL
(2022)
Article
Chemistry, Physical
Melodj Dosa, Nadia Grifasi, Camilla Galletti, Debora Fino, Marco Piumetti
Summary: In this study, the adsorption performance of Clinoptilolite and other adsorbents on Methylene Blue was investigated. It was found that Clinoptilolite exhibited good adsorption capacity at low concentrations, and the pseudo-second-order kinetic model effectively described the adsorption process.
Article
Chemistry, Physical
Ferenc Martinovic, Sabrina Ballauri, Nicola Blangetti, Samir Bensaid, Raffaele Pirone, Barbara Bonelli, Marco Armandi, Fabio Alessandro Deorsola
Summary: Solid state ion exchange was successfully used to introduce Fe cations into the small pore CHA structured SSZ-13 zeolite. Characterization of the produced catalysts revealed highly dispersed and heterogeneous Fe sites, with the type depending on the Al distribution in the zeolite. Dimeric Fe species formed preferentially at the start of the exchange, while isolated cations were formed once Al exchange sites were fully saturated.
APPLIED CATALYSIS A-GENERAL
(2023)
Article
Chemistry, Physical
Tanveer A. Gadhi, Imtiaz Ali Bhurt, Tayyab A. Qureshi, Imran Ali, Anira Latif, Rasool Bux Mahar, Najeebullah Channa, Barbara Bonelli
Summary: In this study, 3D-structured clay filters were prepared and coated with iron-doped titanium dioxide (Fe-TiO2) using 3D printing and sol-gel soaking and calcination techniques. The coated filters showed uniform coatings of round-shaped Fe-TiO2 on the tiny pore of the clay filter, and had an optical energy band gap of around 2.8 eV. The Fe-TiO2-coated clay filters exhibited high denitrification efficiency and photocatalytic degradation performance for indigo carmine dye.
Article
Chemistry, Physical
Stefano Gervasi, Nicola Blangetti, Francesca S. S. Freyria, Salvatore Guastella, Barbara Bonelli
Summary: For the first time, Fe-doping was performed on high-surface-area anatase/brookite TiO2 through a simple sol-gel synthesis and mild temperature calcination. The Fe doping affected the crystallite growth and cell volume of the brookite phase. It also increased the specific surface area and decreased the bandgap energy. The photocatalytic degradation of simazine was improved by Fe doping under both UV and simulated solar light.
Article
Chemistry, Physical
Nicola Blangetti, Francesca S. Freyria, Maria Chiara Calviello, Nicoletta Ditaranto, Salvatore Guastella, Barbara Bonelli
Summary: The photocatalytic degradation of paracetamol in aqueous solution was studied using four commercial TiO2 powders under 1 SUN. The anatase and brookite powders showed higher activity than P25, while rutile powder showed low activity. Surface impurities likely derived from K3PO4 significantly affected the activity of the anatase powder, while the presence of Cl at the surface of rutile did not affect its activity much. The high activity of brookite powder was attributed to its physicochemical properties including band structure and particle size.
Article
Chemistry, Applied
Clarissa Cocuzza, Enrico Sartoretti, Chiara Novara, Fabrizio Giorgis, Samir Bensaid, Nunzio Russo, Debora Fino, Marco Piumetti
Summary: A set of Cu-Mn oxides was synthesized using solution combustion synthesis method with varying copper and manganese ratios. The physico-chemical properties of the samples were investigated with various techniques, and the catalysts were tested for total VOC oxidation. The best performance was achieved with a copper content ranging from 15 at % to 45 at%, and the catalysts exhibited good stability and low water vapor inhibition.
Article
Materials Science, Biomaterials
Clarissa Cocuzza, Elena Antoniono, Carminna Ottone, Valentina Cauda, Debora Fino, Marco Piumetti
Summary: This study aims to obtain a stable and active biocatalyst for drug screening purposes. By immobilizing hLDH-A enzyme on functionalized mesoporous silica, the researchers successfully achieved a stable biosensor for anticancer drugs. The immobilized enzyme showed high yields and retained activity, as well as good stability under certain conditions.
ACS BIOMATERIALS SCIENCE & ENGINEERING
(2023)
Article
Chemistry, Physical
Mallikarjun Madagalam, Mattia Bartoli, Michele Rosito, Nicola Blangetti, Marco Etzi Coller Pascuzzi, Elisa Padovano, Barbara Bonelli, Sandro Carrara, Alberto Tagliaferro
Summary: To deepen the understanding of electron transfer at the electrochemical interface, the performance of ZnxNi1-xFe2O4 (x = 0, 0.2, 0.4, 0.6, 0.8, 1) nanomaterials in electrochemical sensing was studied. Nanomaterials were synthesized using a simple autocombustion synthesis procedure. The ZnFe2O4 sensor showed the best performances in terms of rate constant, peak-to-peak separation, sensitivity, and detection limit. Nanomaterials energy bands mapping with the experimental redox potentials was performed to predict electron transfer. The importance of surface states/defects in the electron transfer mechanism was highlighted.
Article
Chemistry, Multidisciplinary
Clarissa Cocuzza, Giuseppe Pietricola, Ilaria Zonca, Melodj Dosa, Oscar Romero, Tonia Tommasi, Valentina Cauda, Debora Fino, Carminna Ottone, Marco Piumetti
Summary: In this study, a co-immobilization method of formate dehydrogenase (FDH) and glycerol dehydrogenase (GlyDH) enzymes was proposed to reduce CO2 into formic acid. Natural zeolite was used as the immobilization support, and its mesostructures were obtained through modification. The results showed a significant increase in the activity of FDH when using the mesostructured zeolite as the support. This research has potential implications in the fields of enzyme immobilization and biocatalysis.
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)
