Article
Chemistry, Physical
Min Kang, Hai Zhou, Pushan Wen, Ning Zhao
Summary: By using a hydrothermal synthesis method, ultrathin nanosheet-structured transitional metal oxides with highly hierarchical porous structure were prepared on nickel foam, facilitating electrolyte diffusion and improving electrochemical performance. The material exhibited high specific capacity and cycling stability, showing great potential as a high-performance supercapacitor material.
ACS APPLIED ENERGY MATERIALS
(2021)
Article
Chemistry, Multidisciplinary
Hong Hu, Duorui Wang, Hongmiao Tian, Qiyao Huang, Chunhui Wang, Xiaoliang Chen, Yuan Gao, Xiangming Li, Xiaoming Chen, Zijian Zheng, Jinyou Shao
Summary: The novel contact-sensible adhesive (CSA) structure integrates adhesion and sensing functions, making it sensitive to external pressure, tension, and shear loads, while also showing enhanced adhesion on uneven surfaces.
ADVANCED FUNCTIONAL MATERIALS
(2022)
Article
Chemistry, Physical
Yafen Tian, Xiangyu Zhu, Muhammad Abbas, Daniel W. Tague, Melissa A. Wunch, John P. Ferraris, Kenneth J. Balkus
Summary: Hierarchical porous carbon nanosheets were fabricated using a one-step CVD approach on Mg(OH)2 substrates, exhibiting high surface areas and excellent electrochemical performance, with notable stability.
ACS APPLIED ENERGY MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Gui-Nian Li, Xing-Yan An, Le-Xi Zhang, Yue Xing, Li-Jian Bie
Summary: Polycrystalline Co3O4 nanoparticles synthesized by hydrothermal method with calcination show promising gas sensing properties towards ammonia, with high selectivity, good repeatability, and long-term stability. The enhanced sensing performance is mainly attributed to the high Co3+ concentration and abundant doubly ionized oxygen vacancies in the nanoparticles.
Article
Chemistry, Physical
Hualiang Wei, Xiaowei Guo, Yan Wang, Zhiyu Zhou, Huifang Lv, Yang Zhao, Zengjie Gu, Zexiang Chen
Summary: Supercapacitors with hierarchical core-shell structure of Co3O4@NiO-1 demonstrate enhanced pseudocapacitance performance, high specific capacitance, and excellent cycling stability. By utilizing this material as positive electrode in an asymmetric supercapacitor, it achieves excellent specific capacitance and high energy density at different power densities, along with exceptional cyclic stability.
APPLIED SURFACE SCIENCE
(2022)
Article
Nanoscience & Nanotechnology
Changwei Lai, Xiaoxiao Qu, Yao Guo, Miaomiao Li, Haixiang Song, Kwan Lee
Summary: In this work, a composite material consisting of Co3O4 doped with Mo and carboxylic carbon nanotubes (Mo-Co3O4-CNTc) was reported for aqueous rechargeable zinc ion batteries (ZIBs). The composite exhibited a hierarchical porous structure and showed superior electrochemical performance compared to pure Co3O4 and Mo-Co3O4. Furthermore, the MoCo-Zn batteries with Mo-Co3O4-CNTc cathode showed a specific capacity of 195.7 mAh g(-1), energy density of 237.6 Wh kg(-1), and an ultralong cycling life of over 10,000 cycles.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2023)
Article
Chemistry, Analytical
Rong Guo, Yongsheng Deng, Yinghao Jia, Caixin Shi, Wenpu Zhang, Ying Zhou, Xinghui Hou
Summary: This paper develops a simple and sensitive acetone sensor by introducing gallium (Ga) element into GCx porous structures. The addition of Ga inhibits grain growth and improves nanoparticle uniformity in GCx. The performance test shows that the GC4 sensor exhibits extremely high response to acetone at high temperature and has a relatively low detection limit.
SENSORS AND ACTUATORS B-CHEMICAL
(2024)
Article
Engineering, Environmental
Bangda Wang, Fengli Gan, Zhongde Dai, Shenggui Ma, Wenhua Chen, Xia Jiang
Summary: In this study, hierarchical porous biochar prepared from poplar sawdust by air oxidation coupling with NH3 treatment showed significantly enhanced mesopore and micropore volumes, improved basic surface chemistry, and increased adsorption capacity for toluene. The results indicated that the adsorption process of toluene was monolayered, and the maximum adsorption capacity of PS-O-2-NH3 for toluene could reach as high as 476.2 mg/g. The combination of air oxidation and NH3 treatment is a highly effective method for enhancing toluene adsorption performance of biochar.
JOURNAL OF HAZARDOUS MATERIALS
(2021)
Article
Mechanics
Si Suo, Yixiang Gan
Summary: In this study, a possible adjustment in pore geometry was reported to suppress capillary fingering and transition displacement patterns from fingering to compact mode in porous media with hierarchical structures. The results demonstrate that a higher porosity of the second-order porous structure can maintain compact displacement across a wider range of wettability conditions. This work provides insights into fluid-fluid displacement control in hierarchical porous media and can benefit the design of microfluidic devices for better fluid displacement efficiency at the field scale.
Article
Chemistry, Physical
Elizaveta Anastasova, Anastasia A. Belyaeva, Sergey A. Tsymbal, Denis A. Vinnik, Vladimir V. Vinogradov
Summary: This study develops a stable magnetite hydrosol and successfully synthesizes materials with different structures by controlling the concentrations and drying conditions. The effects are theoretically explained and the synthesized materials show excellent biocompatibility and hemostatic potential.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2022)
Article
Materials Science, Multidisciplinary
Ewelina Mackiewicz, Tomasz Wejrzanowski, Remigiusz Nowacki, Jakub Jaroszewicz, Jakub Marchewka, Lukasz Wilk, Patryk Bezkosty, Maciej Sitarz
Summary: Material extrusion is a commonly used 3D printing technique, particularly for ceramics as support materials. This article demonstrates the development of silica-nickel porous structures via material extrusion and the optimization of thermal processing conditions. It shows the potential application of material extrusion as a technique for printing highly porous materials with well-preserved 3D geometry.
APPLIED MATERIALS TODAY
(2023)
Article
Nanoscience & Nanotechnology
Fatma Cagla Durmus, Jose Miguel Molina Jorda
Summary: The development of porous materials with hierarchical porous structures has attracted great interest, as these materials exhibit properties representative of different pore scales and open up the possibility of new applications. The method discussed in this paper involves the preparation of silver foams with hierarchical porous structures by combining the replication method with dealloying, resulting in materials with pores ranging from nanometers to micrometers and exhibiting high antibacterial performance.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Chemistry, Multidisciplinary
Sivalingam Ramesh, K. Karuppasamy, Dhanasekaran Vikraman, Eunhyun Kim, Lama Sanjeeb, Young-Jun Lee, Hyun-Seok Kim, Joo-Hyung Kim, Heung Soo Kim
Summary: A nano-sized cobalt oxide decorated nitrogen-doped graphene oxide (Co3O4@NGO) composite was synthesized for electrochemical supercapacitors and gas sensor applications, showing excellent specific capacitance and stability.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2021)
Article
Engineering, Chemical
Zhenqi Xu, Jin Jiang, Min Wang, Jiadian Wang, Yiwu Tang, Siyan Li, Jiayun Liu
Summary: Hierarchical porous Co3O4 with rich oxygen vacancies were prepared using a simple biotemplates derivatization method, which greatly improved the degradation efficiency of levofloxacin by enhancing the specific surface area and introducing abundant oxygen vacancies. This study not only enhances our understanding of active sites in morphologically tunable metal oxides, but also provides guidance for the future research and engineering application of peroxymonosulfate-based advanced oxidation process.
SEPARATION AND PURIFICATION TECHNOLOGY
(2023)
Article
Polymer Science
Patrick Steindl, Angelika Menner, Alexander Bismarck
Summary: This study explored the preparation of permeable polyepoxide foams using surfactant-stabilized W/O internal phase emulsion templates. By adjusting the internal phase volume ratio and surfactant concentration, the properties of the resulting foams could be tailored. The polyepoxide foams exhibited excellent mechanical properties and permeability, as well as chemical stability.
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)