Article
Chemistry, Multidisciplinary
Fatimah Al-Ghazzawi, Luke Conte, Klaudia K. Wagner, Christopher Richardson, Pawel Wagner
Summary: Reactive inkjet printing was used to efficiently pattern metal-organic framework films, specifically producing patterned electroactive MOF films by attaching redox-responsive ferrocenyl groups to UiO-66-NH2 on FTO glass. This study opens up possibilities for broader application of reactive printing in MOF film modification.
CHEMICAL COMMUNICATIONS
(2021)
Article
Multidisciplinary Sciences
Yong-Rae Jang, Robin Jeong, Hak-Sung Kim, Simon S. Park
Summary: This study utilized a hybrid copper ink and nickel electroplating to achieve the preparation of copper printed electrodes with improved solderability through various experiments and analytical methods. The research found that by using techniques such as masking and nickel electroplating, the solder strength and conductivity of the printed electrodes could be significantly improved.
SCIENTIFIC REPORTS
(2021)
Article
Chemistry, Multidisciplinary
Takashi Ito, Samantha G. G. Jenkins, Soenke Seifert, Ahmet Uysal
Summary: This paper reports a new electrochemistry-based approach for the controlled formation of a thin film of zeolitic imidazolate framework-8 (ZIF-8) on the surface of insulators. The film was formed by a cathodic reaction at an electrode in a methanol solution containing ZnCl2 and 2-methylimidazole. The deposition mechanism involves cathodic base generation, formation of intermediate species, diffusion towards the substrate, and formation of ZIF-8. The film thickness can be easily controlled by adjusting the potential application conditions.
CRYSTAL GROWTH & DESIGN
(2023)
Review
Chemistry, Physical
Shuyue Jia, Dongxiao Ji, Liming Wang, Xiaohong Qin, Seeram Ramakrishna
Summary: This review introduces the research progress in the fabrication of metal-organic framework (MOF) membranes, including the preparation of pure MOF membranes and the incorporation of MOFs into polymer matrix. Through the analysis of classic cases, the advantages and disadvantages of different preparation strategies and products are compared, providing general knowledge for the needs of different application scenarios. The important role that MOF membranes play in the applications of separation, adsorption, and catalysis is highlighted, along with the opportunities and challenges in this new era.
Article
Chemistry, Multidisciplinary
Peter Thissen, Jonas Wohlgemuth, Peter Weidler, Detlef Smilgies, Lars Heinke, Nils Schewe, Meike Koenig, Peter Krolla, Christof Woell
Summary: The properties of metal-organic frameworks (MOFs) are highly influenced by defect concentrations. A method has been developed to grow MOFs epitaxially on cm-sized Si(111) single crystals, resulting in nearly perfect structure with low defect density. Synchrotron-based grazing incidence X-ray diffraction (GI-XRD) experiments confirmed the high registry between crystalline metal-organic thin films and the substrate. The reduction of MOF defect density has significant effects on the properties of these porous frameworks, particularly in mass transport where a 10-fold increase in diffusion coefficient of guest molecules is observed.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Review
Chemistry, Inorganic & Nuclear
Xinyue Shi, Yuying Shan, Meng Du, Huan Pang
Summary: Metal-organic frameworks (MOFs) are crystalline porous materials with various applications in the field of chemistry; This article summarizes preparation methods of MOF films and their applications in multiple fields; Future research needs to address challenges to advance developments in synthesis and applications.
COORDINATION CHEMISTRY REVIEWS
(2021)
Article
Chemistry, Multidisciplinary
Hongye Yuan, Kerui Li, Dongchen Shi, Hao Yang, Xin Yu, Weidong Fan, Pio John S. Buenconsejo, Dan Zhao
Summary: This study reports the facile fabrication of ultrathin (down to 20 nm) NUS-8 membranes in large-area (>200 cm(2)) with great homogeneity and texture along (00l) direction. The NUS-8 membranes show excellent rejections (>98%) towards various metal ions and dyes in aqueous separation due to the well-aligned structures. The study opens up novel perspectives for preparing ultrathin and large-area MOF membranes using the solution processability of MOFs.
ADVANCED MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Soo Min Song, Sung Min Cho
Summary: A copper ion ink capable of screen printing and IPL sintering on PET substrates was developed, showing quick drying, excellent electrical resistivity, and good screen printability.
ACS APPLIED ELECTRONIC MATERIALS
(2022)
Review
Nanoscience & Nanotechnology
Youngwook Noh, Gyu Young Kim, Horim Lee, Jaehak Shin, Kunsik An, Manoj Kumar, Dongjin Lee
Summary: The review summarizes the post-treatment processes of metal oxide thin films and nanostructures in device applications using intense pulsed light. The IPL process improves device performance through the use of additional light absorbing layer or back-reflector.
Article
Chemistry, Physical
Yingzhuo Lu, Yitian Wu, Jin Yang, Xinqiang Zhu, Fangli Sun, Lu Li, Zhehong Shen, Yajun Pang, Qiang Wu, Hao Chen
Summary: By utilizing metal-organic framework and sodium laurate coating method, vibrant and superhydrophobic bamboo with excellent chemical and mechanical stability can be gently fabricated, showing positive performances in mildew resistance, flame retardancy, and self-cleaning capabilities.
JOURNAL OF COLLOID AND INTERFACE SCIENCE
(2021)
Article
Chemistry, Multidisciplinary
Zhi Chen, Rui Wang, Tao Ma, Jin-Long Wang, Yu Duan, Zhi-Zhan Dai, Jie Xu, Hui-Juan Wang, Jiayin Yuan, Hai-Long Jiang, Yue-Wei Yin, Xiao-Guang Li, Min-Rui Gao, Shu-Hong Yu
Summary: A facile, fast, and cost-effective spray-coating method was utilized to deposit controlled-thickness MOF films over large scales, enabled by perfectly dispersed colloidal solutions. These solutions allow for the fabrication of compact and uniform MOF films on various substrates, showing great potential for producing high-quality MOF thin films on a large scale.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Na Li, Zhi-Gang Gu, Jian Zhang
Summary: This study reports two types of stilbene-based metal-organic framework (MOF) films for photopatterning. The 2D Zn-2(sdc)(2) MOF film shows excellent photosensitive properties with a short photoconversion time, while the 3D MOF Zn4O(sdc)(6) film does not have this property. Furthermore, the Zn-2(sdc)(2) film exhibits reversible fluorescent photoswitch behavior and can achieve high-efficiency, erasable photopatterning with various sizes. This research not only develops a new type of photosensitive crystalline network film, but also provides solutions for erasable photopatterning in optical applications from macroscopic to microscopic scales.
Article
Chemistry, Multidisciplinary
Chun Li, Henrik Schopmans, Lukas Langer, Stefan Marschner, Abhinav Chandresh, Jochen Buerck, Youichi Tsuchiya, Adachi Chihaya, Wolfgang Wenzel, Stefan Braese, Mariana Kozlowska, Lars Heinke
Summary: Researchers have successfully prepared a crystalline film based on porphyrin with chiral properties and demonstrated excellent optoelectronic performance. By assembling in a metal-organic framework film, the porphyrin core becomes twisted and chiral. The close packing and crystalline order of the porphyrin cores in the film result in outstanding optoelectronic properties. Through exciting the Soret band of porphyrin, efficient photoconduction with a high On-Off ratio is achieved. Moreover, handedness-dependent circularly-polarized-light photoconduction is obtained. The combination of assembly-induced chirality with the rich porphyrin chemistry opens up possibilities for organic materials with exceptional chiral and optoelectronic properties.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2023)
Article
Nanoscience & Nanotechnology
Saqib Kamal, Krishna Prasad Bera, Muhammad Usman, Batjargal Sainbileg, Shruti Mendiratta, Abhishek Pathak, Arif I. Inamdar, Chen-Hsiung Hung, Michitoshi Hayashi, Yang-Fang Chen, Kuang-Lieh Lu
Summary: This study reports the self-assembly of an environmentally friendly nonlanthanide barium-based metal-organic framework and its white light emission properties. A device fabricated using Ba-MOF as an active material exhibited white electroluminescence spectrum, with advantages over traditional LED systems.
ACS APPLIED NANO MATERIALS
(2021)
Article
Agronomy
Qiang Liu, Haizhen Ding, Tingting Zhang, Dandan Zhou, Tong Zhu, Leiqing Pan, Gaoxing Ma, Weijie Lan, Siqi Zhao, Qiuhui Hu, Chao Ding
Summary: A non-thermal pretreatment method using intense pulsed light (IPL) was applied to improve the flavor stability of strawberries during postharvest storage. The IPL treatment reduced the decay ratio by 23.67% compared to the control, and resulted in a more stable surface color. The content of free aldehydes, esters, and ketones in IPL-treated strawberries increased, while the activity of fatty acid metabolism enzymes decreased. These findings demonstrate the practical application of IPL in improving the flavor stability of strawberries.
POSTHARVEST BIOLOGY AND TECHNOLOGY
(2023)
Article
Chemistry, Physical
Mohamed Naser Ettish, Osama Abuzalat, Danny Wong, Gharieb S. El-Sayyad, Mohamed A. Elsayed
Summary: Cinnamon verum is used as a low-cost precursor to produce microporous-activated carbons with high surface area and large total pore volume, effectively removing chlorpyrifos (CPS) from aqueous solutions. The adsorption process is exothermic and spontaneous, with the Langmuir isotherm model found to be the best fit for representing the CPS adsorption data.
INTERNATIONAL JOURNAL OF CHEMICAL KINETICS
(2022)
Article
Electrochemistry
Yaoli Zhao, Patatri Chakraborty, Nicholas Stavinski, Luis Velarde, Vaishali Maheshkar, Karthik Dantu, Arindam Phani, Seonghwan Kim, Thomas Thundat
Summary: Standoff detection based on optical spectroscopy is a highly selective method for identifying materials at a distance. In this study, we demonstrate that bi-material cantilever-based photothermal spectroscopy can be used for sensitive and selective detection of polymer films. We compare the spectral results obtained from standoff detection with those obtained from point detection, FTIR, and FTIR-ATR. Our results show that the technique can discriminate various polymers and detect thin layers of polymers in real-time. The sensitivity of the technique can be improved by optimizing the thermal sensitivity of the cantilever and increasing the number of photons.
JOURNAL OF THE ELECTROCHEMICAL SOCIETY
(2022)
Article
Chemistry, Multidisciplinary
Danny Wong, Arindam Phani, Setareh Homayoonnia, Simon S. Park, Seonghwan Kim, Osama Abuzalat
Summary: 2D metal-organic frameworks (MOFs) have high surface area and active adsorption sites, making them appealing for gas sensing applications. In this study, a 2D-MOFs nanosheet, Zn-BTC, with approximately 2.52 nm thickness was synthesized using a fast and facile technique. The introduction of 8-hydroxyquinoline resulted in the formation of fluorescent compound ZnQ, which was encapsulated and decorated onto Zn-BTC. The synthesized material exhibited visible color change and fluorescence quenching upon exposure to ammonia, with detection limits of 0.27 ppm and 60.8 nm in gaseous and liquid phase sensing, respectively.
ADVANCED MATERIALS INTERFACES
(2022)
Article
Chemistry, Applied
Danny Wong, Seonghwan Kim, Osama Abuzalat
Summary: In this study, a direct synthesis method for manufacturing fluorescent metal organic frameworks (MOFs) with high sensitivity and selectivity is proposed. The fluorescent MOFs show a low detection limit for DMMP and prevent water adsorption.
APPLIED ORGANOMETALLIC CHEMISTRY
(2022)
Article
Polymer Science
Mostafa Mohsen, Hesham Tantawy, Ibrahim Naeem, Mohamed Awaad, Osama Abuzalat, Ahmad Baraka
Summary: The buffering Cadmium-Imidazole Coordination Polymer (Cd-Im-CP) was successfully chemically doped with sulfur, narrowing the material's bandgap and enabling it to respond to visible light. This sulfur-doped Cd-Im-CP showed remarkable improvement in photocatalytic degradation of dyes under visible light compared to Cd-Im-CP without sulfur doping.
JOURNAL OF INORGANIC AND ORGANOMETALLIC POLYMERS AND MATERIALS
(2022)
Article
Chemistry, Applied
Ahmad Baraka, Mohamed Sheashea, Karim Gado, Sameh Rizk, Osama Abuzalat
Summary: A new coordination polymer, Zn-(OC-AMAM-CO) CP, has been synthesized and used for the removal of Cu(II). The polymer possesses abundant chelating groups, serving as effective adsorptive coordinating sites.
APPLIED ORGANOMETALLIC CHEMISTRY
(2023)
Article
Materials Science, Ceramics
Ninad B. Velhal, Tae Ho Yun, Junhyuck Ahn, Taewook Kim, Jisoo Kim, Changyong Yim
Summary: Different micro- and nanostructures of cobalt oxide are grown on Ni foam using surface-modifying agents via a simple one-pot hydrothermal synthesis process. The electrochemical measurements demonstrate that the dandelion flower-like morphology obtained via CTAB delivers the highest specific capacitance. The surface modification of Co3O4 material improved the charge storage performance of the electrodes for supercapacitor applications.
CERAMICS INTERNATIONAL
(2023)
Article
Chemistry, Multidisciplinary
Donghyun Lee, Tae Ho Yun, Jung Gi Min, Youngchul Byun, Changyong Yim
Summary: With the aim of achieving zero-waste technology and enhancing industrial waste recycling, we utilized aqueous ammonia to optimize the recovery of sodium bicarbonate from desulfurization waste. The waste contained a high sodium sulfate content of 86.2%, and the initial stages of the reaction using ammonia gas resulted in insufficient yield due to the rapid deposition of undesired ammonium bicarbonate. To overcome this issue, we examined the effect of ammonia solution dosage in detail. The regenerated sodium bicarbonate from desulfurization waste exhibited comparable yield/purity to pure sodium sulfate, with percentages of 58.2/85.9% and 56.6/91.5%, respectively. Furthermore, the as-regenerated sample showed superior desulfurization performance (97% removal rate) compared to commercial sodium bicarbonate (88.6%) at a feeding rate of 5 g/min for 200 ppm SO2 gas.
JOURNAL OF INDUSTRIAL AND ENGINEERING CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
Ahmed M. El-Khawaga, Mohamed A. Elsayed, Yosri A. Fahim, Rasha E. Shalaby
Summary: In this study, CoFe2O4 nanoparticles were prepared and coated with Capsaicin. The characteristics of the modified nanoparticles were examined. The antimicrobial potential and photocatalytic degradation abilities were investigated using Fuchsine basic. Results showed that the coated nanoparticles displayed higher antimicrobial activity against Gram-positive bacteria and exhibited efficient photocatalytic degradation of Fuchsine basic at pH 9.0.
SCIENTIFIC REPORTS
(2023)
Article
Chemistry, Multidisciplinary
Muhammad Toyabur Rahman, Md Sazzadur Rahman, Hitendra Kumar, Keekyoung Kim, Seonghwan Kim
Summary: Flexible triboelectric nanogenerators (TENGs) with multifunctional sensing capabilities offer a solution to energy supply challenges for wearable smart electronics. A highly stretchable and durable electrode for wearable TENG is developed using ZIF-8 as a reinforcing nanofiller in a hydrogel. The optimized ZIF-8-based hydrogel electrodes enhance the output performance of TENG, delivering an excellent power density of 3.47 Wm(-)(2), which is 3.2 times higher than pure hydrogel-based TENG. The developed TENG can scavenge biomechanical energy even at subzero temperatures and serve as self-powered pressure sensors and biomotion sensors.
ADVANCED FUNCTIONAL MATERIALS
(2023)
Article
Agriculture, Multidisciplinary
Mohammad Kazem Vakilzadeh Ebrahimi, Hansaem Lee, Jongho Won, Seonghwan Kim, Simon S. Park
Summary: In this study, a CNN model using fusion data with NIR and image was used to accurately predict sand, silt, and clay fractions of soil samples. The model performance was optimized through various preprocessing methods, image types, and size, resulting in high performance for both NIR and image datasets. The fusion dataset improved the model performance compared to using individual datasets, and the trained model showed better predictive performance than previous models, even with a small amount of training data.
COMPUTERS AND ELECTRONICS IN AGRICULTURE
(2023)
Article
Chemistry, Inorganic & Nuclear
Ahmed Adel, Amr Abdelghany, Nabil Abdelmonem, Mona Elfiky, Osama Abuzalat
Summary: A sensitive fluorescence probe based on porous Lanthanum-1,4-benzenedicarboxylic frameworks (La-BDC) was developed for selective detection of 2-chloroethyl ethyl sulfide (2-CEES) at part per billion levels. The La-BDC particles were synthesized using the solvothermal method and characterized using FTIR spectroscopy, X-ray powder diffraction, scanning electron microscopy, UV-Vis spectrometry, and fluorescence spectroscopy. The LaBDC sensor showed a sensitive detection limit (LOD = 0.0521 nM, 0.0065 ppb) and a wide linear range of 25-400 ppb for 2-CEES, along with selectivity towards 2-CEES in the presence of dimethyl methyl phosphonate and hexane.
INORGANIC CHEMISTRY COMMUNICATIONS
(2023)
Article
Materials Science, Multidisciplinary
Ahmad Baraka, Mohamed Sheashea, Karim Gado, Osama Abuzalat
Summary: This study presents the successful hydrothermal synthesis and characterization of cerium phthalate coordination polymer (Ce-Phth CP), and investigates its effectiveness in degrading the stable azo dye methyl orange (MO) in advanced oxidation processes. The results show that the best degradation of MO occurs at an initial pH of 7.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2023)
Article
Chemistry, Physical
Ninad B. Velhal, Junhyuck Ahn, Tae Ho Yun, Taewook Kim, Minsu Gu, Jisoo Kim, Changyong Yim
Summary: In this study, a cobalt oxide (Co3O4) supercapacitor electrode was prepared using ultrafast annealing, leading to enhanced supercapacitive performance. The resulting Co3O4 material exhibited a coral reef-like morphology with a high surface area and a melted ice-like structure. The improved performance of the ultrafast annealed Co3O4 was attributed to its pseudocapacitive nature, unique morphology, and excellent cyclic stability. Assembled hybrid asymmetric supercapacitors showed a specific capacitance of 128.13 F/g with excellent retention capability over 5000 charge-discharge cycles.
ACS APPLIED ENERGY MATERIALS
(2023)
Article
Engineering, Electrical & Electronic
Daewoong Kim, Jakyung Eun, Junhyuck Ahn, Changyong Yim, Sangmin Jeon
Summary: A method for fabricating moisture-induced power generators (MPGs) using flashlight-induced graphitization was developed. FeCl3-impregnated cellulose papers were converted to graphitized cellulose papers (GCPs) by flashlight irradiation, and a hierarchically porous structure was formed. The concentration gradient of dissociated Fe3+ ions within a bilayered cellulose paper (BCP) led to the generation of potential difference and electron movement along the external circuit, resulting in continuous voltage and current outputs. The BCP-based MPG exhibited the highest continuous current density value observed under ambient humidity conditions.
ACS APPLIED ELECTRONIC MATERIALS
(2023)
