Article
Materials Science, Ceramics
Rajesh Bura, Binod Kumar, Ravi Mohan Prasad
Summary: In this study, a polymer-derived silicon oxycarbide (SiOC) ceramic layer was coated on stainless steel 304 (SS304) to enhance its corrosion resistance in a seawater environment. The SiOC-coated SS304 exhibited significantly lower corrosion current density and superior corrosion resistance compared to uncoated SS304.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2023)
Article
Materials Science, Ceramics
Johannes Essmeister, Altan Alpay Altun, Maximilian Staudacher, Tanja Lube, Martin Schwentenwein, Thomas Konegger
Summary: A polymer-derived SiOC/SiC composite system suitable for lithography-based ceramic manufacturing was established, which exhibited suitable viscosity, sedimentation stability, and fast curing behavior. The addition of SiC particles increased handleability, reduced shrinkage, and significantly increased critical wall thicknesses. The characteristic strength of SiOC/SiC composites was measured at 325 MPa.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Chemistry, Analytical
Binod Kumar, Ravi Mohan Prasad
Summary: In this study, the enhancement of H2/CO selectivity of GaN sensors was investigated through the use of amorphous microporous silicon oxycarbide (SiOC) filter layer. The SiOC ceramic was synthesized by pyrolysis of vinyl-functionalized polysiloxane at 700 degrees C under argon, resulting in the formation of microporous SiOC ceramic. A SiOC layer with a thickness of about 6 μm was coated onto the GaN sensor substrate. The uncoated GaN sensor exhibited high sensor signals towards both H2 and CO, while the SiOC-coated GaN sensor showed almost no sensing towards CO.
SENSORS AND ACTUATORS B-CHEMICAL
(2023)
Article
Materials Science, Ceramics
Jongmoon Jang, Pradeep Vallachira Warriam Sasikumar, Fatemeh Navaee, Lorenz Hageluken, Gurdial Blugan, Juergen Brugger
Summary: The electrochemical behavior of polymer-derived silicon oxycarbide (SiOC) and titanium-doped SiOC (SiTiOC) ceramic electrodes for use as pacemaker electrodes was investigated. Results showed that the SiOC and SiTiOC electrodes displayed wide electrochemical stability and had potential as candidate materials for next-generation pacemaker electrodes.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Ceramics
Cong Zhou, Shuang Li, Zhaoju Yu
Summary: In this study, FePSO precursors were synthesized by adding ferric acetylacetonate to polysiloxane, leading to the successful preparation of porous SiFeCO ceramics through subsequent pyrolysis. The addition of iron was found to accelerate the grain coarsening of SiC, resulting in the formation of FexSiy/SiC@SiOC nanocomposites with enhanced microwave absorption performance. The potential application of these nanocomposites in electromagnetic interference field highlights the importance of carbon content and crystallization behavior of FexSiy for performance optimization.
INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY
(2022)
Article
Engineering, Manufacturing
Chong He, Cong Ma, Xilu Li, Feng Hou, Liwen Yan, Anran Guo, Jiachen Liu
Summary: A highly cost-effective desktop top-down CLIP strategy was employed for fast shaping polymer-derived ceramics, which can be further converted into dense and crack-free SiOC ceramics with a smooth surface. This strategy can be applied to the fast fabrications of other polymer-derived ceramics.
ADDITIVE MANUFACTURING
(2021)
Article
Chemistry, Applied
Bernardo Araldi Silva, Luiz Fernando Belchior Ribeiro, Sergio Yesid Gomez Gonzalez, Dachamir Hotza, Regina de Fatima Peralta Muniz Moreira, Agenor De Noni Junior
Summary: Photocatalysis is a crucial field focusing on feasible energy generation and pollutants abatement under visible light. Immobilizing catalysts on tailor-made porous supports to form heterojunctions is an effective approach to tackling current challenges. The use of stable semiconductors in catalytic systems allows for applications in harsh environments.
MICROPOROUS AND MESOPOROUS MATERIALS
(2021)
Article
Materials Science, Ceramics
Quan Li, Chen-Chih Tsai, Michael Scheffler, Shiv Joshi, Rajendra K. Bordia
Summary: Highly porous SiOC ceramic foams with gradient or uniform macrostructures were achieved through polymer derived ceramic routes, by adjusting precursor viscosity and introducing SiO2 powders. Increasing precursor viscosity via precuring preceramic polymers led to improved pore size uniformity and decreased average pore size. Additionally, the addition of SiO2 fillers reduced crosslinking reaction rate, resulting in homogeneous pore nucleation and uniform small pore size foams.
CERAMICS INTERNATIONAL
(2022)
Article
Materials Science, Ceramics
Hanqin Tang, Kewei Wang, Ke Ren, Yiguang Wang
Summary: In this study, the evolution of the structure of polymer-derived SiOC ceramics with pyrolysis temperature and its corresponding microwave dielectric properties were investigated. The SiOC ceramics pyrolyzed at temperatures below 1200 degrees C exhibited an amorphous structure and low microwave complex permittivity, indicating wave transmission properties. The arrangement of free carbon in the SiOC ceramics mainly occurred at 1200-1300 degrees C, while the arrangement of the Si-based matrix mainly occurred at 1300-1400 degrees C, resulting in the formation of nanocrystalline SiC. The microwave permittivity of SiOC showed negligible change in the temperature range of 1200-1400 degrees C. However, at pyrolysis temperatures exceeding 1400 degrees C, the carbothermal reaction of free carbon and the Si-O backbone led to the formation of crystalline SiC, resulting in significantly increased complex permittivity and electromagnetic absorption characteristics of the SiOC ceramics.
CERAMICS INTERNATIONAL
(2023)
Article
Materials Science, Ceramics
Pradhyun Veerapanaicker Soundaraj, Santhosh Sivan Sembulingam, Ganesh Babu Thiyagarajan, Niraja Moharana, K. C. Hari Kumar, Ravi Kumar
Summary: The ablation behavior of SiOC ceramic foams derived from poly(hydridomethylsiloxane) was evaluated under oxy-acetylene flame at 1500 degrees C. Results showed that closed porous structured SiOC ceramic foams exhibited lower mass ablation rate compared to open porous structured ones, making them a potential thermal protection material for high temperature applications. Feasibility of foam reduction reactions was further investigated through computational analysis, highlighting the importance of tailored microporous structured SiOC ceramic foams.
JOURNAL OF THE EUROPEAN CERAMIC SOCIETY
(2022)
Article
Materials Science, Multidisciplinary
Yuhang Zhao, Lei Guo, Qingsong Ma
Summary: Polymer derived ceramics (PDCs) technique is an advanced method for preparing high performance ceramics. The addition of nickel in the pyrolysis process promotes the growth of carbon nanotubes and crystallization of carbon and SiC phases.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Biochemistry & Molecular Biology
Yuejiao Yang, Apoorv Kulkarni, Gian Domenico Soraru, Joshua M. Pearce, Antonella Motta
Summary: Bone tissue engineering has seen significant advancements in scaffold development, with the need for mechanically stable 3D structures that are also bioactive to promote cell regeneration into bone tissue. Low-cost 3D printing methods for porous structures have shown potential in stimulating osteogenic differentiation and promoting bone regrowth and regeneration.
INTERNATIONAL JOURNAL OF MOLECULAR SCIENCES
(2021)
Article
Materials Science, Multidisciplinary
Ni Yang, Shaofan Xu, Dajie Zhang, Chengying Xu
Summary: TiC/SiOC ceramic/glass composites with excellent electromagnetic wave (EMW) absorbing performance are fabricated using a polymer-derived method. The optimal interface polarization and the ordering, concentration, and interconnectivity of the conductive network contribute to the superior EMW absorption properties of the composites.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Shakir Bin Mujib, Francois Ribot, Christel Gervais, Gurpreet Singh
Summary: The study investigates three little-known precursor-derived ceramic fibers as potential high-capacity electrode materials for energy storage applications. The SiOC ceramic fibers exhibit excellent performance in lithium-ion battery half-cells and supercapacitors, demonstrating high electronic conductivity, ion storage capacity, and cycle stability.
Review
Materials Science, Multidisciplinary
Cekdar Vakifahmetoglu, Tugce Semerci, Aleksander Gurlo, Gian Domenico Soraru
Summary: Aerogels are unique porous solids with low density and high surface area, making them attractive for scientific research and industrial applications. Polymer derived ceramic aerogels, obtained through pyrolysis of sol-gel/preceramic polymers, have specific thermal, electrical, and adsorbent properties highlighted in this review.
CURRENT OPINION IN SOLID STATE & MATERIALS SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Jianze Feng, Yan Wang, Yongtai Xu, Hongyun Ma, Gaowei Wang, Pengjun Ma, Yu Tang, Xingbin Yan
Summary: This study introduces a novel bias-direction-adjustable supercapacitor-diode with high rectification ratio and outstanding cycling life, representing a significant breakthrough in designing high-performance capacitive ionic diodes.
ADVANCED MATERIALS
(2021)
Review
Chemistry, Multidisciplinary
Yinglun Sun, Bao Liu, Lingyang Liu, Xingbin Yan
Summary: This article discusses the ion transport issues in electrochemical energy storage devices at low temperatures and surveys the strategies to solve these problems. Finally, it proposes the directions for building high-performance low-temperature-available EES devices.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Hongyun Ma, Hongwu Chen, Yajie Hu, Bingjun Yang, Jianze Feng, Yongtai Xu, Yinglun Sun, Huhu Cheng, Chun Li, Xingbin Yan, Liangti Qu
Summary: The study developed an adaptive pore-structure remolding approach for effective storage of hydrated aluminum ions, and constructed an asymmetric aqueous rocking-chair aluminum-ion capacitor with high operating voltage, ultrahigh energy density, high power density, and long lifespan.
ENERGY & ENVIRONMENTAL SCIENCE
(2022)
Article
Chemistry, Multidisciplinary
Yongtai Xu, Jianze Feng, Hongyun Ma, Jiaojiao Zhu, Xu Zhang, Junwei Lang, Shengrong Yang, Xingbin Yan
Summary: This research presents a holistic design of dual-ion batteries (DIBs) to enhance their volumetric and rate performance. The DIB utilizes a Wadsley-Roth phase niobium tungsten oxide as the anode material, which possesses facile ion transport tunnels and ultrahigh electrode density, and graphite as the cathode material. The assembled DIB full cell demonstrates high volumetric energy density, power density, and excellent cyclic stability.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Tingting Liang, Xiaqing Zhang, Lijun Su, Ruilin Hou, Bingjun Yang, Junwei Lang, Shengrong Yang, Xingbin Yan
Summary: This study demonstrates that perovskite materials with cubic structure exhibit the best electrochemical performance for supercapatteries. The increase in oxygen vacancies and enhancement of B-O hybridization in the cubic structure optimize the electronic structure of the perovskite materials, improving their conductivity and reaction kinetics. The proposed filtering strategy based on crystal structure provides a new perspective for faster and more efficient selection of perovskite materials for supercapatteries.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Multidisciplinary
Minjie Shi, Renyuan Wang, Lingyun Li, Nianting Chen, Peng Xiao, Chao Yan, Xingbin Yan
Summary: A flexible PDPZ@MXene electrode material is developed, which shows rapid and ultra-stable proton storage behavior. It exhibits a considerable energy density and power density, making it a promising candidate for energy storage systems.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Energy & Fuels
Xinyue Zhao, Chenhui Yang, Xiongri Gan, Li Gong, Xingbin Yan, Igor Zhitomirsky, Kaiyuan Shi
Summary: In this study, an electrophoretic deposition (EPD) method was developed to fabricate composite electrodes for sodium-ion batteries (SIB) without using volatile and toxic solvents as well as binders. By optimizing the fabrication process and investigating different dispersants, high capacity and stable cycling performance of the composite electrode were achieved. It was also found that full-cell SIBs with presodiated hard carbon anode and deposited FePO4/MWCNT cathode could be fabricated.
Review
Physics, Applied
Li Zhang, Dandan Wu, Xingbin Yan
Summary: The introduction of magnetic field has opened up new possibilities for high-performance electrochemical energy storage devices, allowing for molecular scale interactions and construction of nanostructures. The review also analyzes the theoretical principles and mechanisms of magnetic field effects, highlighting the challenges and prospects for future applications in EES techniques.
APPLIED PHYSICS REVIEWS
(2022)
Review
Materials Science, Multidisciplinary
Kailimai Su, Yan Wang, Bao Yang, Xu Zhang, Wei Wu, Junwei Lang, Xingbin Yan
Summary: This review provides a comprehensive summary of the important role of pre-lithiation in lithium-ion capacitors (LICs) and the application of cathode sacrificial lithium salts (CSLSs) in pre-lithiation strategies. Various pre-lithiation methods are systematically discussed and compared, highlighting the lithium extraction mechanism of CSLSs and their influence on LICs performance. A summary and outlook are provided to guide the development of new pre-lithiation technologies.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Pei Tang, Wuyang Tan, Fangzhou Li, Shan Xue, Yihui Ma, Pengwei Jing, Yanghui Liu, Jian Zhu, Xingbin Yan
Summary: Supercapacitor diode (CAPode) is a novel device that integrates ion diode functionality into a conventional electrical double-layer capacitor. It has potential applications in emerging fields and can achieve high charge storage and rectification properties through spinel ZnCo2O4's ion-selective surface redox reaction. Furthermore, it can be used in logic gate applications to realize logic operations. This research expands the types of CAPodes and provides a train of thought for constructing high-performance capacitive ionic diodes.
ADVANCED MATERIALS
(2023)
Article
Engineering, Environmental
Ting Liu, Shuang Cheng, Luping Li, Xu Ji, Gyutae Nam, Xingbin Yan, Meilin Liu
Summary: Rechargeable aqueous batteries are hindered by durability, capacity, and Coulombic efficiency issues. However, a new Ni-Zn system with concentrated gel electrolyte, ZnO@C anode, and Ni(OH)2 cathode shows improved stability and capacity. The battery also achieves a high midpoint discharge voltage and maintains high CE, with K+ insertion dominating the reaction mechanism.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Jing Zhang, Qingyun Dou, Chao Yang, Limin Zang, Xingbin Yan
Summary: Developing high-performance cathode materials for aqueous Zn metal batteries is crucial, and using high-density ordered porous graphene (HOPG) as the iodine host cathode in the presence of ZnI2-containing aqueous electrolyte can achieve high volumetric capacity. The addition of ethylene glycol (EG) to the electrolyte can inhibit the shuttle of polyiodides and associated side reactions on Zn anodes, resulting in a battery with high energy density and excellent cycling stability.
JOURNAL OF MATERIALS CHEMISTRY A
(2023)
Article
Chemistry, Physical
Qingnuan Zhang, Shan Xu, Yue Wang, Qingyun Dou, Yinglun Sun, Xingbin Yan
Summary: In this study, the temperature-dependent electrochemical performance of different-concentration WIS electrolytes was investigated through Raman spectroscopy and molecular dynamics simulations. The 21 m WIS electrolyte showed advantages in the high-temperature range (>25 degrees C), while the 5 m WIS electrolyte exhibited superior low-temperature performance, maintaining a stable gel state even at -30 degrees C due to its muscular hydrogen bond network. The findings were further confirmed through the electrochemical performance evaluation of carbon supercapacitors assembled with different-concentration WIS electrolytes. This study provides guidance for choosing appropriate WIS electrolytes for electrochemical energy storage devices operating at different temperatures.
ENERGY STORAGE MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Tingting Liang, Ruilin Hou, Xiaqing Zhang, Bingjun Yang, Bao Yang, Shengrong Yang, Xu Zhang, Xingbin Yan
Summary: It is demonstrated that metal oxyhydroxides generated through surface reconfiguration during electrochemical processes can provide extra capacity besides the oxygen-anion intercalation in perovskite oxides. The strong Jahn-Teller distortion of Co2+ and Ni3+ in the pseudo trigonal prisms for the 2H-perovskite structure helps the formation of metal oxyhydroxides on the surface of the pristine material. Among the three 2H-perovskite related oxides, Sr5Co3NiO12-x with the highest Co2+ and Ni3+ contents exhibited the highest capacity increase. This study offers a promising pathway for the development of advanced perovskite-like oxide pseudocapacitive materials.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Materials Science, Multidisciplinary
Pei Tang, Wuyang Tan, Guangyang Deng, Yunting Zhang, Shan Xu, Qijun Wang, Guosheng Li, Jian Zhu, Qingyun Dou, Xingbin Yan
Summary: Pseudocapacitive materials store charges via reversible surface or near-surface faradaic reactions, which can overcome the capacity limitations of electrical double-layer capacitors. By utilizing synchrotron X-ray analytical techniques, the relationship between the microstructure of pseudocapacitive materials and their electrochemical performance can be investigated. This review provides a comprehensive analysis of four characterization techniques and proposes further research possibilities for understanding pseudocapacitance mechanisms using synchrotron X-ray techniques.
ENERGY & ENVIRONMENTAL MATERIALS
(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)
