Article
Chemistry, Physical
Alishbah Zaka, Muhammad Adil Mansoor, Muhammad Adeel Asghar, Ali Haider, Mudassir Iqbal
Summary: This study developed a cost-effective electrocatalyst for oxygen evolution reaction (OER) by introducing TiO2 nanoparticles into the layers and surface of V2C MXene, enhancing the electron transport ability of carbide.
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
(2023)
Article
Energy & Fuels
Muhammad Zia Ullah Shah, Muhammad Sajjad, Hongying Hou, Shams Ur Rahman, Arshad Mahmood, Uzma Aziz, A. Shah
Summary: CuO/TiO2 nanocomposites with high capacity performance were synthesized using a low-cost wet chemical method. The nanocomposites exhibited excellent energy storage performance and stability in supercapacitors. This study provides insights for the development of future supercapacitor electrode materials.
JOURNAL OF ENERGY STORAGE
(2022)
Review
Chemistry, Multidisciplinary
Wojciech Danowski, Thomas van Leeuwen, Wesley R. Browne, Ben L. Feringa
Summary: Molecular machines, switches, and motors allow precise control of nanoscale molecular motion in artificial systems. Integrating these compounds into robust material scaffolds is a strategy for producing smart materials with unique properties. This review focuses on a subclass of structures, namely light-responsive porous materials, and their potential applications.
NANOSCALE ADVANCES
(2021)
Article
Chemistry, Multidisciplinary
C. Garcia-Cabezon, V. Godinho, C. Perez-Gonzalez, Y. Torres, F. Martin-Pedrosa
Summary: This study proposes an innovative strategy combining powder metallurgy based space-holder (SH) technique and electropolymerization to prepare porous biocompatible Ti substrates coated with PPy-AgNPs composite conductive polymers. The coated substrates show excellent adhesion and corrosion resistance, as well as enhanced antibacterial activity. This strategy has significant potential for the substitution of small damaged bone tissues, such as in tumors.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
C. Garcia-Cabezon, V. Godinho, C. Perez-Gonzalez, Y. Torres, F. Martin-Pedrosa
Summary: This study proposes an innovative strategy that combines two well-known easy and economical preparation techniques to provide porous Ti substrates for cortical bone tissue substitution, promoting bone in-growth and improving corrosion resistance, biocompatibility, and antibacterial activity by coating the substrates with PPy-AgNPs composite conductive polymers.
MATERIALS TODAY CHEMISTRY
(2023)
Article
Engineering, Chemical
Hilda Dinah Kyomuhimbo, Immaculate Nyambura Michira, Emmanuel Iheanyichukwu Iwuoha, Usisipho Feleni
Summary: Metal-conducting polyaniline (PANI)-based nanocomposite materials have shown promising electrical, mechanical, and optical properties. In this study, different metal-PANI nanocomposites were prepared and formed nanocomposite-based electrode platforms. The results indicate that these nanocomposites exhibit improved electrical properties and could potentially be used in electrochemical applications.
Article
Spectroscopy
Tian-Tian Wang, Jing-Yi Liu, Jun-Dan An, Yang-Fan Shi, Yi-Yun Zhang, Jian-Zhong Huo, Zheng-Guo Huang, Yuan-Yuan Liu, Bin Ding
Summary: MOFs, also known as PCPs, are a new type of crystalline porous materials that have attracted attention for their unique crystal characteristics and adjustable functional properties. The bi-functional building block used in this study successfully synthesized a two-dimensional porous material with good fluorescence properties and selective ion detection capabilities.
SPECTROCHIMICA ACTA PART A-MOLECULAR AND BIOMOLECULAR SPECTROSCOPY
(2021)
Article
Chemistry, Multidisciplinary
Michael C. C. Brand, Nicola Rankin, Andrew I. I. Cooper, Rebecca L. L. Greenaway
Summary: Porous materials, including solids and emerging liquids, have attracted extensive research attention due to their potential applications in gas adsorption and molecular separations. In this study, a new method of gas release from porous liquids is explored. By incorporating a photoresponsive MOF in an ionic liquid, selective CO2 uptake over CH4 is achieved, and gas release can be controlled using UV light.
CHEMISTRY-A EUROPEAN JOURNAL
(2023)
Article
Engineering, Environmental
Jian Wang, Botian Li, Xianxiao Song, Xueyan Liu, Da Xiao, Yichi Zhang, Jundang Liang, Jianhong Xu
Summary: This study developed a one-step preparation method to fabricate photoresponsive microcapsules based on the interfacial self-assembly of an azopyridine coordination polymer. The microcapsules showed controllable photoresponsive properties, which could disassemble and regenerate under specific wavelengths of UV, visible light, and heat. These one-step prepared and recyclable photoresponsive microcapsules may have potential applications in the field of microreactors.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Chemistry, Physical
Shuangshuang Li, Jianping Lin, Hailang Wan, Junying Min
Summary: This study investigates the chemical bonding mechanism between laser-induced metal oxide and epoxy resin. Utilizing solid-state nuclear magnetic resonance (ssNMR) and density functional theory calculations, it is found that the amorphous aluminum oxide formed by laser ablation consists mainly of 4-fold and 5-fold coordinated Al sites. This aluminum oxide forms stable Al-O-C bonds with epoxy resin, preferably at imperfectly coordinated Al sites. The imperfect coordination of amorphous aluminum oxide plays a more critical role than its amorphous nature in the formation of a stable adsorption structure with epoxy resin.
APPLIED SURFACE SCIENCE
(2023)
Article
Chemistry, Multidisciplinary
Jun Zhang, Wataru Kosaka, Qingxin Liu, Naoka Amamizu, Yasutaka Kitagawa, Hitoshi Miyasaka
Summary: This study investigates the preparation of CO2-induced antiferromagnets and their reversible electronic state change and magnetic phase transition through charge transfer, leading to improved conductivity.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Materials Science, Multidisciplinary
Ruixiang Wang, Yanyang Wang, Yanhua Lu, Jiangfeng Zheng, Caini Zhong, Jiaming Liu, Jianjun Liu, Shubiao Xia
Summary: In this study, ZIF-67 nanoparticles with a reuleaux tetrahedron morphology were synthesized using a surface-coordinated polymerization method, and nitrogen-doped hollow porous Co3O4 nanoparticles were anchored on reduced graphene oxide to obtain HP-Co3O4/NC@rGO composites. The excellent electrochemical performance of the composite is mainly attributed to the synergistic effect of the hollow nanostructure and graphene network.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2022)
Article
Polymer Science
Doaa A. Nasrallah, Essam G. El-Metwally, Ahmed M. Ismail
Summary: The study focused on the preparation and application of PVDF/LTO nanocomposites in high-power lithium-polymer batteries. Experimental results showed that the addition of LTO NPs can enhance both the mechanical strength and electrical conductivity of the PVDF matrix.
POLYMERS FOR ADVANCED TECHNOLOGIES
(2021)
Article
Chemistry, Multidisciplinary
Darka Markovic, Andrea Zille, Ana Isabel Ribeiro, Daiva Mikucioniene, Barbara Simoncic, Brigita Tomsic, Maja Radetic
Summary: The growing demand for sustainable and green technologies has led to the development of an antibacterial textile nanocomposite material based on cotton and peat fibers. By coating the substrate with chitosan and synthesizing copper-based nanostructures, the material exhibits strong antibacterial activity and controlled release of Cu2+ ions.
Article
Chemistry, Physical
Leila Vatandoust, Ali Habibi, Hamid Naghshara, Sajedeh Mohammadi Aref
Summary: In this study, nanostructured ZnO films were prepared by depositing a Zn thin film on a quartz substrate and synthesizing ZnO nanoparticles through thermal oxidation. TiO1.5/ZnO nanosensors were successfully fabricated and exhibited significantly improved sensitivity to CH4 and CO gases, as well as better response and stability compared to previous ZnO-based sensors.
SURFACES AND INTERFACES
(2022)
Article
Chemistry, Multidisciplinary
Taku Sawayama, Yubo Wang, Tomohisa Watanabe, Masayoshi Takayanagi, Takuya Yamamoto, Nobuhiko Hosono, Takashi Uemura
Summary: A new polymer separation methodology that uses metal-organic frameworks (MOFs) to differentiate between linear and cyclic polyethylene glycols (PEGs) was reported, allowing successful isolation of gram-scale PEGs with only cyclic structures from crude reaction mixtures using MOF as an adsorbent.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Review
Chemistry, Multidisciplinary
Nobuhiko Hosono, Takashi Uemura
Summary: Molecular recognition is crucial for modern chemical processes, particularly in separating polymers. Conventional methods struggle with recognizing small structural differences in polymers. Metal-organic frameworks show promise in precisely identifying and separating polymer structures, offering potential for advancements in polymer synthesis.
ACCOUNTS OF CHEMICAL RESEARCH
(2021)
Article
Chemistry, Multidisciplinary
Shao-Wei Lo, Takashi Kitao, Yusuke Nada, Kei Murata, Kazuyuki Ishii, Takashi Uemura
Summary: The study demonstrates that a chiral metal-organic framework can guide the formation of highly chiral nanocomposites with intense chiral signals from buckminsterfullerene through in situ self-assembly strategy. Experimental and theoretical studies reveal that the chiral induction is attributed to the hybridization of molecular orbitals with the pore surface of the MOF.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Multidisciplinary
Kaoru Kioka, Nagi Mizutani, Nobuhiko Hosono, Takashi Uemura
Summary: This paper proposes a design approach using mixed metal-organic frameworks (MOFs) as tunable stationary phases in liquid chromatography (LC). By systematically designing ligands, the pore sizes in the MOFs can be tuned. Columns packed with the MOFs and their mixed-particle/solid-solution stationary phases are prepared and tested for the retention capability of polyethylene glycol (PEG) in LC. The results demonstrate that mixed-linker solid-solution MOFs have higher retention capability compared to pure MOF stationary phases, due to their specific nanostructures.
Article
Chemistry, Physical
Takumi Miura, Takashi Kitao, Takashi Uemura
Summary: Encapsulation of pentacene in metal-organic frameworks greatly enhances its luminescence, allowing precise tuning of the emission band in the near-infrared region. The confined PNT exhibits exceptional stability and response to additional guest molecules, making it suitable for applications in vapor sensing. This study highlights the importance of rational design in maximizing the properties of fluorophores for advanced nanomaterials.
JOURNAL OF PHYSICAL CHEMISTRY C
(2022)
Article
Chemistry, Multidisciplinary
Nagi Mizutani, Nobuhiko Hosono, Takashi Uemura
Summary: We present a novel approach to encapsulate large guest molecules in nanoporous materials, metal-organic frameworks (MOFs), via an in situ crystal formation method. This method has exciting prospects in the design of new organic/inorganic hybrids, as well as capturing and separating molecules that are significantly larger than the actual pore size of the host MOF.
CHEMICAL COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Masahiro Abe, Yuki Kametani, Takashi Uemura
Summary: In this study, a new method for synthesizing double-stranded polymers was developed. By conducting crosslinking radical polymerization inside a metal-organic framework, soluble double-stranded polymers were successfully obtained. This technique has potential applications in various fields.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Physical
Takashi Kitao, Alexandre Legrand, Taizo Mori, Katsuhiko Ariga, Takashi Uemura
Summary: The orientation of polymer chains is crucial for the properties of polymeric materials. In this study, anisotropic polythiophene particles with controlled lengths were fabricated using a metal-organic framework template, resulting in the preferential alignment of unprocessable polythiophene chains.
MOLECULAR SYSTEMS DESIGN & ENGINEERING
(2023)
Article
Polymer Science
Ami Nishijima, Yuki Hayashi, Koichi Mayumi, Nobuhiko Hosono, Takashi Uemura
Summary: This report presents a bottom-up synthesis method for a polymer-based 2D electrolyte using a metal-organic framework (MOF) as a template. Crosslinking polymerization of methyl methacrylate (MMA) within MOF nanochannels resulted in poly(methyl methacrylate) (PMMA) monosheets. Hydrolysis of the precursor polymer gave poly(methacrylic acid) (PMAA) sheets. PMAA-1 exhibited high solubility and viscous liquid-like nature when dispersed in water at a pH higher than 5.7, and the addition of Al3+ ions promoted hydrogel formation.
Article
Multidisciplinary Sciences
Tomoya Iizuka, Hiroyuki Sano, Benjamin Le Ouay, Nobuhiko Hosono, Takashi Uemura
Summary: Mechanically interlocked architecture has led to the development of various molecular systems, but the focus has been primarily on the molecular-scale integrity and topology of the structures. The topological material design of such architectures at different scales has not been fully explored.
NATURE COMMUNICATIONS
(2023)
Article
Polymer Science
Xiyuan Zhang, Takashi Kitao, Ami Nishijima, Takashi Uemura
Summary: Polyacrylonitrile (PAN) nanosheets with unimolecular thickness were successfully synthesized by cross-linking polymerization in the 2D nanospaces of a metal-organic framework. The ultrathin 2D network structure inhibited crystallization and allowed for efficient thermal transformation reaction of PAN. The amorphous nature of the PAN nanosheets facilitated thermal dehydroaromatization reactions to yield a ladder polymer structure with a highly extended conjugated system. Notably, further carbonization of this ladder polymer produced graphitic carbon with a highly ordered structure due to the well-defined precursor structure.
Article
Polymer Science
Ami Nishijima, Takashi Uemura
Summary: This paper presents different synthetic approaches to two-dimensional polymeric materials (2DPMs) and classifies them into three categories. Each approach can generate 2DPMs with unique features. Lastly, it discusses current challenges in synthetic design and future development directions.
Review
Polymer Science
Takashi Kitao, Xiyuan Zhang, Takashi Uemura
Summary: This review describes recent developments and future perspectives in the confined synthesis of conjugated ladder polymers (CLPs) utilizing templates such as metal surfaces and nanoporous materials. Accessing CLPs with greater diversity through template confinement allows for control over their intrinsic properties, paving the way for future applications in various fields.
Article
Chemistry, Inorganic & Nuclear
Tomoya Iizuka, Nobuhiko Hosono, Takashi Uemura
Summary: In this study, the mechanical properties of metal-organic frameworks (MOFs) are improved by filling the MOF pores with polymer chains, resulting in enhanced resilience and toughness against mechanical pressures.
DALTON TRANSACTIONS
(2022)
Article
Chemistry, Multidisciplinary
Noriyoshi Oe, Nobuhiko Hosono, Takashi Uemura
Summary: The study reveals that polyethylene glycols can be adsorbed into sub-nanometer pores of metal-organic frameworks, providing insights into polymer analysis and separation. The unique solvent dependence and molecular weight effects on adsorption kinetics and selectivity are discussed, highlighting the potential of this method for polymer analysis and separation.
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)
