Article
Multidisciplinary Sciences
Hamed Ghaforinejad, Hossein Mazaheri, Ali Hassani Joshaghani, Azam Marjani
Summary: The study synthesized porous methacrylate-modified FDU-12/poly(methyl methacrylate) and amine-modified FDU-12/Nylon 6 nanocomposites, which were applied as novel adsorbents for removing Pb(II) from aqueous media. Results showed that the adsorption process followed the pseudo-second-order kinetic model, and the Langmuir isotherm provided the best fit for the equilibrium data with maximum adsorption capacities of 99.0 and 94.3 mg g(-1) for the two adsorbents, respectively.
Article
Chemistry, Physical
Asep Sugih Nugraha, Olga Guselnikova, Joel Henzie, Jongbeom Na, Md Shahriar A. Hossain, Omer Dag, Alan E. Rowan, Yusuke Yamauchi
Summary: This study presents a method to synthesize mesoporous gold nanoparticles (Au NPs) with large pores and investigates their optical and photocatalytic properties. By using a metallogelator and block copolymer micelles, mesoporous Au NPs with pores distributed throughout the particle were successfully prepared. It is found that large pores can change the local optical conductivity by subdividing the nanoparticles and generate strongly hybridized plasmon modes. The porosity also promotes the formation of numerous catalytic active sites, resulting in enhanced photocatalytic performance.
CHEMISTRY OF MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Junyan Wang, Xinta Li, Wanchun Guo, Kesong Tian, Jiamin Zhang, Bosen Zhang, Xueai Li, Haiyan Wang
Summary: A bowl-shaped nitrogen and oxygen dual-doping carbon material was synthesized through low-temperature defluorination pyrolysis and alkali-etched activation. The unique bowl-shaped structure greatly facilitated the diffusion of dopants and electrolyte ions, resulting in excellent supercapacitance performance.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Thermodynamics
Raul-Augustin Mitran, Daniel Lincu, Daniela Berger, Cristian Matei
Summary: FDU-12 mesoporous silica is a promising matrix for shape-stabilized phase change materials, allowing for the preparation of nanocomposites containing stearic acid and bismuth with excellent thermal performance and stability.
JOURNAL OF THERMAL ANALYSIS AND CALORIMETRY
(2022)
Article
Chemistry, Applied
Yue Zhang, Yue Wang, Yaping Song, Jiangqi Luo, Yingjie Yu, Chengzhong Yu
Summary: Tetrasulphide bridged mesoporous organosilica nanoparticles with a high sulphur content and large pore size were successfully synthesized using tetrabutyl orthosilicate as a modulator. The incorporation of tetrabutyl orthosilicate resulted in higher organosilica content and larger mesopores compared to the conventional synthesis using tetraethyl orthosilicate. Moreover, the nanoparticles with a high tetrasulphide content exhibited enhanced GSH oxidation capability.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Chemistry, Physical
Shixiang Dong, Jing Li, Shuai Zhang, Ning Li, Bo Li, Qianli Zhang, Liqin Ge
Summary: One-dimensional PAN-based carbon nanofibers with a high aspect ratio were prepared using electrospinning and high-temperature carbonization. The carbonization temperature had a direct impact on the degree of graphitization, dielectric loss, and microwave absorption properties of the carbon nanofibers. Optimal microwave absorption performance was achieved with PAN-based carbon fiber/paraffin composites containing 10 wt% filler, exhibiting a maximum reflection loss of -12.75 dB and an effective absorption bandwidth of 4.88 GHz (13.12-18 GHz) at 2.2 mm.
COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS
(2022)
Article
Chemistry, Physical
Xuting Wang, Zuoyi Xiao, Wensha Niu, Keke Yang, Hui Lv, Zhenyu Zhao, Shangru Zhai, Qingda An, Chengrong Qin
Summary: In this study, nickel oxide/sulfide nanoparticle-embedded porous carbon material was successfully synthesized using kelp as a starting material. The resulting composite exhibits fast ion transport and low interface resistance, making it suitable for supercapacitor and microwave absorber applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2022)
Article
Chemistry, Physical
Yaqian Lin, Zeyu Hu, Ying Shao, Zhi Chen, Xiangru Wei, Zhangxiong Wu
Summary: N/S-doped carbon materials show great promise for the oxygen reduction reaction (ORR), and the key to enhancing their performance lies in constructing uniform doping with desirable configurations and engineering the pore structure. A single-precursor design and a solvent-free nanocasting approach were utilized to synthesize N/S/O-doped ordered mesoporous carbons with high surface areas, large pore volumes, and excellent ORR performance.
Article
Chemistry, Multidisciplinary
Lijun Du, Ning Lv, Jiashuai Li, Jiayi Zhang, Yilan Chen, Yalin Zhang, Zhen Li, Xianqiang Huang, Jujie Luo
Summary: NiCoSe4 nanoflowers were synthesized on carbon fiber felt (CFF) using the microwave method. The effects of microwave time and power on the morphology, physical phase, and performance of NiCoSe4@CFF were investigated. The results showed that the nanostructured NiCoSe4 uniformly loaded on CFF when synthesized under 1000 W microwave irradiation for 120 s. The NiCoSe4@CFF electrode exhibited high specific capacity and cycling performance as well as demonstrated excellent flexibility and catalytic activity for the oxygen evolution reaction (OER).
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Engineering, Electrical & Electronic
Zhang Chen, Xiaotian Sun, Zizheng Wang, Yong Zhu, Chuanxiang Cao, Jiadong Zhou, Yanfeng Gao
Summary: The study found that micropores in porous carbon played an important role in broadband and high microwave absorption properties, with prepared samples achieving wide bandwidth, high dielectric loss, and low thickness sensitivity. This offers valuable insight into designing and synthesizing highly microwave-absorbing materials.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Article
Materials Science, Multidisciplinary
Lianggui Ren, Yiqun Wang, Liang Chai, Shiyi Zhou, Qinchuan He, Haiying Du, Guanglei Wu
Summary: Fabricating electromagnetic wave-absorbing materials derived from biomass have attracted great attention for their unique structures and eco-friendly properties. In this study, ultralight hierarchical porous carbon (UHPC) was successfully prepared through a simple process and showed high absorption performance. The results demonstrate the potential of biomass-derived microwave absorbents for practical applications.
MATERIALS CHEMISTRY AND PHYSICS
(2022)
Article
Chemistry, Applied
Jae-Hun Yang, Shan Mohanan, Ajanya Maria Ruban, Zhixuan Li, Stalin Joseph, Ajay Karakoti, Ajayan Vinu
Summary: The mesoporous conducting polymer@silica nanohybrids with ultra-large pore sizes were successfully synthesized through a simple approach of polymerization and rearrangement of monomeric units. These nanohybrids exhibit high adsorption capacities for large-sized proteins and can be used as carriers for protein delivery or as supports for enzymatic catalysis or biosensors.
MICROPOROUS AND MESOPOROUS MATERIALS
(2022)
Article
Nanoscience & Nanotechnology
Yajing Huang, Songlin Chen, Ruitong Ma, Yalin Cheng, Lun Jin, Guohua Chen
Summary: A novel method has been developed to synthesize fine coal-based carbon composite particles with rich nitrogen-doped microcrystalline structure for superior electromagnetic-shielding performance. The occurrence of Diels-Alder (D-A) reaction between coal and FMA significantly changes the structure of coal, while ball-milling and heat treatment improve the structural integrity of the carbon networks, resulting in excellent electromagnetic shielding properties when mixed with paraffin.
ADVANCED COMPOSITES AND HYBRID MATERIALS
(2022)
Article
Chemistry, Physical
Debora Carrozza, Gianluca Malavasi, Erika Ferrari
Summary: The synthesis of silica particles with large pores (LPMS) is important for accommodating big molecules with a pharmaceutical role and maintaining their biological activity. LPMSs showed better loading and releasing properties compared to classical mesoporous silica (MS). LPMSs exhibited a significantly higher loading efficiency and a controlled release in simulated body fluid, while MS experienced pore blocking. LPMSs maintained their structure and demonstrated strength and mechanical resistance.
Article
Nanoscience & Nanotechnology
Ayush Bhardwaj, James Nicolas Pagaduan, Yong-Guen Yu, Vincent J. Einck, Sravya Nuguri, Reika Katsumata, James J. Watkins
Summary: Carbonization by rapid thermal annealing of precursor films structured by a brush block copolymer-mediated self-assembly enabled the preparation of large-pore ordered mesoporous carbon-based micro-supercapacitors within minutes. The use of RTA coupled with BBCP templating opens avenues for scalable, rapid fabrication of high-performance carbon-based micro-pseudocapacitors.
ACS APPLIED MATERIALS & INTERFACES
(2021)
Article
Materials Science, Multidisciplinary
Gulsum Ersu, Carmen Munuera, Federico J. Mompean, Daniel Vaquero, Jorge Quereda, Joao Elias F. S. Rodrigues, Jose A. Alonso, Eduardo Flores, Jose R. Ares, Isabel J. Ferrer, Abdullah M. Al-Enizi, Ayman Nafady, Sruthi Kuriakose, Joshua O. Island, Andres Castellanos-Gomez
Summary: We have developed a method to fabricate thermoelectric devices on office paper substrates using handcrafting techniques. The devices consist of thin films of WS2, Te, and BP (P-type semiconductors) and TiS3 and TiS2 (N-type semiconductors) deposited by rubbing these materials' powders onto the paper. The semiconducting films exhibit high Seebeck coefficients, reaching (+1.32 +/- 0.27) mV K-1 for WS2 and (-0.82 +/- 0.15) mV K-1 for TiS3. Peltier elements were also constructed by connecting the P- and N-type films with graphite electrodes, achieving a thermopower value of up to 6.11 mV K-1 when the Peltier element had three junctions. This work demonstrates the potential application of semiconducting van der Waals materials in thermoelectric power generation and low-cost disposable electronic devices.
ENERGY & ENVIRONMENTAL MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Siyuan Ban, Xuchen Nie, Zhihao Lei, Jiabao Yi, Ajayan Vinu, Yang Bao, Yanpeng Liu
Summary: This review provides an overview of the principles, advances, and applications of nanoelectromechanical system resonators based on low-dimensional materials. These resonators have shown promising potential in sensing, electronics, and quantum detection due to the unique properties of low-dimensional materials. However, there are challenges in fabrication, tuning, and utilization of these resonators.
MATERIALS RESEARCH LETTERS
(2023)
Article
Engineering, Multidisciplinary
Abdullah M. Al-Enizi, Alamgir Karim, Ayman Yousef
Summary: This research investigates the use of CdS nanoparticles-decorated ZnO nanofibers as a novel photocatalyst for water splitting. The nanofibers were prepared using electrospinning, and the CdS nanoparticles were synthesized through a colloidal solution. The resulting CdS NPs-decorated ZnO NFs exhibited favorable photocatalytic performance for hydrogen production compared to native ZnO NFs and CdS NPs. The excellent photostability of the NFs was attributed to their nanofibrous morphology, which facilitated photocarrier transport and increased the number of active sites.
ALEXANDRIA ENGINEERING JOURNAL
(2023)
Review
Chemistry, Multidisciplinary
Arun V. Baskar, Gurwinder Singh, Ajanya M. Ruban, Jefrin M. Davidraj, Rohan Bahadur, Prasanthi Sooriyakumar, Prashant Kumar, Ajay Karakoti, Jiabao Yi, Ajayan Vinu
Summary: The rapid growth in electronic and portable devices has increased the demand for safe, durable, lightweight, low-cost, high-energy, and high-power-density electrode materials for rechargeable batteries. This review discusses the use of biomass-based materials and their hybrids for energy generation research, highlighting their unique properties and advancements in preparation and modification strategies. The electrochemical performances of these materials in different batteries and the challenges in maximizing their specific capacity and lifetime are also addressed.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Yin Zhang, Songbo Chen, Abdullah M. Al-Enizi, Ayman Nafady, Zhiyong Tang, Shengqian Ma
Summary: In this study, a strategy for integrating molecular chiral frustrated Lewis pair (CFLP) with porous metal-organic framework (MOF) was proposed and the catalyst CFLP@MOF was successfully constructed, which enables heterogeneous asymmetric hydrogenation. The developed CFLP@MOF catalyst exhibits high activity/enantio-selectivity and excellent recyclability/regenerability, providing a new avenue for the design and preparation of advanced catalysts for asymmetric catalysis.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Chemistry, Inorganic & Nuclear
N. Subhashini, S. Revathi, Mohd Ubaidullah, Abdullah M. Al-Enizi, S. Muthulakshmi, D. Thiripurasundari, Shoyebmohamad F. Shaikh, Ayman Nafady, Meera Moydeen Abdulhameed, Nouf B. B. Alanzi, Rayana Ibrahim Alkhalifah, Chandra Sekhar Dash, M. Sundararajan, M. Sukumar
Summary: The combustion-based synthesis of BiFeO3 (BFO) and Gd:BFO perovskite nanoparticles was presented. XRD analysis showed that the undoped BFO sample had a single perovskite phase with a rhombohedral structure, while the Gd-doped samples exhibited a structural phase transformation from rhombohedral to orthorhombic. The presence of Bi3+, Gd3+, Fe2+, and O2+ ions in the perovskite samples was confirmed by XPS, and elemental functional groups were detected by FT-IR spectroscopy. The direct band gap decreased as the Gd concentration increased. The synthesized catalysts, particularly Gd:BFO (x = 0.25), exhibited higher conversion and selectivity efficiencies for glycerol in catalytic oxidation studies.
DALTON TRANSACTIONS
(2023)
Article
Materials Science, Multidisciplinary
Gulsum Ersu, Yigit Sozen, Estrella Sanchez-Viso, Sruthi Kuriakose, Beatriz H. Juarez, Federico J. Mompean, Mar Garcia-Hernandez, Lea Visscher, Alvaro J. Magdaleno, Ferry Prins, Abdullah M. Al-Enizi, Ayman Nafady, Carmen Munuera, Joshua O. Island, Andres Castellanos-Gomez
Summary: The use of low-cost benchtop plotters combined with refillable writing pens and markers has been studied as an effective method to print nanomaterial-based inks on paper substrates. The approach is robust and precise, allowing for the printing of various solution-processable nanomaterials with narrow pattern features. The study also illustrates the versatility of this printing platform by successfully printing a range of materials with different properties.
ADVANCED ENGINEERING MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
V. S. Veena, H. J. Amith Yadav, S. P. Kubrin, Mohd Ubaidullah, Abdullah M. Al-Enizi, Bidhan Pandit, Harjot Singh Gill, K. Manjunatha, V. Jagadeesha Angadi
Summary: This study investigates the structural, microstructural, and magnetic property modifications in Bismuth(3 + )-substituted ZnFe2O4 composites. Bi@ZnFe2O4 is synthesized using the solution combustion method and sintered at 500 degrees C for two hours. XRD patterns confirm the cubic symmetry and spinel structure of the samples. Structural parameters are calculated using fundamental formulas. The samples exhibit porous character and significantly agglomerated particles, as revealed by SEM and HRTEM images. The magnetic properties of the composite are described by Neel's two sublattice model based on the cation occupancies.
JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS
(2023)
Article
Materials Science, Multidisciplinary
Sujanya Maria Ruban, Kavitha Ramadass, Gurwinder Singh, Siddulu Naidu Talapaneni, Gunda Kamalakar, Chandrakanth Rajanna Gadipelly, Lakshmi Kantham Mannepalli, Yoshihiro Sugi, Ajayan Vinu
Summary: Carbon nitrides are a type of metal-free catalytic materials with great potential for chemical transformations and organocatalysis. Their low cost, thermal and chemical stability, non-toxicity, ease of functionalization, and porosity make them versatile for catalysis. This review discusses N-rich carbon nitrides and their role in various organic catalytic reactions. It also explores the structure-property relationship and potential value of these materials compared to other catalytic materials. The review aims to provide up-to-date information on the developments in carbon nitride-based organic catalysis and their future prospects.
SCIENCE AND TECHNOLOGY OF ADVANCED MATERIALS
(2023)
Review
Chemistry, Multidisciplinary
Shan Mohanan, Xinwei Guan, Mingtao Liang, Ajay Karakoti, Ajayan Vinu
Summary: The design of novel drug delivery systems is crucial in disease treatments, and mesoporous silica nanoparticles (MSNs) have shown great promise due to their stability, tunable morphologies/sizes, and loading capability. Functionalization of MSNs with drugs, imaging, and targeting agents is enabled by the presence of surface silanol groups, making them versatile and popular among researchers. Stimuli-responsive silanol conjugates have emerged as an effective way to deliver therapeutic drugs precisely and on-demand, and it is important to understand the role of surface silanols in MSN as a drug delivery platform. This review provides an analytical understanding of surface silanols, their chemistry, identification methods, and their correlation with properties and performance.
Article
Chemistry, Multidisciplinary
Huiyan Piao, Goeun Choi, N. Sanoj Rejinold, Ajayan Vinu, Jin-Ho Choy
Summary: Excessive exposure to UV and HEV light can cause skin damage, and the development of effective shielding agents is crucial. In this study, a nanohybrid material called g-C3N4-mica was developed by incorporating semiconducting g-C3N4 into the interlayer space of mica, which showed excellent UV-HEV absorption properties and no photocatalytic activity. It is believed that g-C3N4-mica can be used as a UV-HEV blocking agent without any photocatalytic effect or phototoxicity.
ADVANCED MATERIALS INTERFACES
(2023)
Article
Chemistry, Multidisciplinary
Shan Mohanan, C. Sathish, Kavitha Ramadass, Mingtao Liang, Ajayan Vinu
Summary: This study demonstrates the synthesis of core-shell ordered mesoporous silica nanoparticles (CSMS) with tunable particle size and shape using a dual surfactant-assisted approach. By modifying the synthesis conditions, monodispersed and ordered mesoporous silica nanoparticles with tunable particle size and various morphologies can be obtained. Comparative studies on CBZ-loaded CSMS with hexagonal prism (HP) and spherical shapes reveal better drug delivery efficiency and cellular uptake of CSMS with HP morphology. These unique materials can serve as an excellent drug delivery system and have potential applications for cancer treatment.
Article
Chemistry, Physical
Hajar Yousefzadeh, Abolhassan Noori, Mohammad S. Rahmanifar, Nasim Hassani, Mehdi Neek-Amal, Maher F. El-Kady, Ajayan Vinu, Richard B. Kaner, Mir F. Mousavi
Summary: The researchers have successfully achieved a stable and dendrite-free zinc anode by encapsulating it with a chitosan-containing polymer gel, addressing the issue of sustained water consumption in aqueous zinc batteries. Additionally, they have developed a binder-free cathode material with high specific capacity, specific energy, and specific power, along with prolonged cycling stability and stable discharge depth. This interface engineering strategy provides a solid foundation for the practical applications of aqueous zinc batteries.
ADVANCED ENERGY MATERIALS
(2023)
Article
Chemistry, Physical
Alhoda Abdelmoneim, Mohamed Sh. Abdel-wahab, June Key Lee, Meera Moydeen Abdul Hameed, Badr M. Thamer, Abdullah M. Al-Enizi, Rayana Ibrahim Alkhalifah, Wael Z. Tawfik
Summary: In this study, cuprous oxide (Cu2O) thin films were fabricated using a simple sputtering technique. The films were deposited on both traditional fluorine-doped tin oxide (FTO) and Ti-metallic substrates. X-ray diffraction analysis confirmed the cubic crystal structure of the Cu2O layer. Optical properties were characterized using a UV-Vis spectrophotometer, and the optical bandgap was determined to be approximately 2.15 eV. XPS and scanning electron microscopy were employed for structural and morphological investigations. Optoelectronic behavior was evaluated using a Keithley source meter, and various parameters such as external quantum efficiency, sensitivity, responsivity, and detectivity were calculated based on experimental data.
Review
Chemistry, Multidisciplinary
Mobin Safarzadeh Khosrowshahi, Hossein Mashhadimoslem, Hadi Shayesteh, Gurwinder Singh, Elnaz Khakpour, Xinwei Guan, Mohammad Rahimi, Farid Maleki, Prashant Kumar, Ajayan Vinu
Summary: With global warming and climate change being a reality, international investments are increasingly being made in climate change mitigation. Carbon capture and separation (CCS) is gaining paramount importance as an effective solution for global warming. Sorption on porous materials, especially natural products-derived porous carbons, shows promise as an alternative to traditional CO2 capture technologies due to their sustainable availability, economic viability, and recyclability. This review provides crucial insights and analyses on the application of porous carbons in CO2 capture, including synthesis methods, structural characterization, and the use of simulation techniques. The review also outlines future research directions to progress the use of natural products-derived porous carbons for CO2 capture.
