Review
Chemistry, Multidisciplinary
Ehsan Kianfar, Hamidreza Sayadi
Summary: This paper introduces the characteristics of nonporous materials and the wide range of applications of nanoporous materials in various industries. It also provides a detailed introduction to the concepts of porous nanostructures and supramolecular chemistry, followed by a study on common nanoporous materials and their synthesis, characterization, and applications.
Article
Chemistry, Physical
Nicholas J. Corrente, Elizabeth L. Hinks, Aastha Kasera, Raleigh Gough, Peter I. Ravikovitch, Alexander V. Neimark
Summary: This study explores the capabilities of 3D molecular models of disordered carbon structures to reproduce the morphological and adsorption features of practical adsorbents. By using grand canonical Monte Carlo simulations, the researchers were able to construct adsorption isotherms and demonstrated outstanding agreement between the simulated and experimental results. The correlations with experiments are truly amazing, considering the inherent variability of structural properties of commercial carbons and the diverse sources of experimental data in the literature.
Article
Engineering, Environmental
Pingxian Feng, Huan Wang, Peipei Huang, Lijie Zhong, Shiyu Gan, Wei Wang, Li Niu
Summary: Lignin-derived carbon electrode materials with a high carbon content and a rich benzene ring structure were studied for supercapacitors, and it was found that the nanoporous structure significantly affects the capacitive performance. Three nitrogen-doped nanoporous carbons were prepared using alkali lignin as a carbon source, and the effect of different nanopore distributions on the electrochemical performance was examined. The carbon activated by ZnC2O4 showed a hierarchical porous structure composed of nanosheets, enabling it to store charge and transfer ions simultaneously. It achieved a maximum specific capacitance of 254F/g at 0.5 A/g, surpassing the microporous-dominated carbon activated by K2CO3 and mesoporous-dominated carbon obtained by the SiO2 template method. This study provides theoretical guidance for the preparation of excellent lignin-derived carbon electrode materials.
CHEMICAL ENGINEERING JOURNAL
(2023)
Article
Biochemical Research Methods
Minjun Kim, Ruijing Xin, Jacob Earnshaw, Jing Tang, Jonathan P. Hill, Aditya Ashok, Ashok Kumar Nanjundan, Jeonghun Kim, Christine Young, Yoshiyuki Sugahara, Jongbeom Na, Yusuke Yamauchi
Summary: Metal-organic frameworks (MOFs) are crystalline porous materials formed by coordination bonding between inorganic and organic species, with large specific surface areas and porosities. The direct carbonization of MOFs improves their conductivity, making them suitable for electrochemical applications.
Review
Chemistry, Multidisciplinary
Marta Sevilla, Noel Diez, Antonio B. Fuertes
Summary: This review summarizes the recent progress in the production of porous carbons using more sustainable chemical activation methods, including the use of less-corrosive chemical agents as alternatives to KOH and discussions on emerging self-activation methodologies.
Review
Engineering, Chemical
Boya Qiu, Patricia Gorgojo, Xiaolei Fan
Summary: With the increasing world population, the demand for fresh water is growing. Water desalination, using adsorption technology, is considered a promising and efficient solution for global freshwater shortage. This review assesses various adsorbent materials and discusses their development trends.
CHINESE JOURNAL OF CHEMICAL ENGINEERING
(2022)
Article
Engineering, Chemical
Qian Li, Tingyan Lu, Linlin Wang, Ruixue Pang, Jiawei Shao, Linlin Liu, Xin Hu
Summary: In this study, N-doped porous carbons were synthesized using biomass lotus stalks, showing excellent CO2 adsorption properties and electrochemical performance, indicating potential applications in CO2 capture and supercapacitors.
SEPARATION AND PURIFICATION TECHNOLOGY
(2021)
Article
Chemistry, Physical
Peng Li, Luoting Zhou, Yaxiong Yang, Zhenzhe Wei, Xiaoyu Zhang, Yanxia Liu, Jian Peng, Guangyan Du, Chu Liang, Hongge Pan
Summary: Converting CO2 into carbon materials offers a solution to both environmental and energy issues, but low-carbon and energy-efficient conversion remains a challenge. In this study, a time-saving and energy-efficient strategy is reported for converting CO2 into carbon materials by reacting CO2 with Mg(AlH4)2 in a matter of seconds. The graphitization degree and pore structure of the synthesized carbon materials are found to be regulated by CO2 pressure, and the highly graphitized carbon exhibits high capacity and long cycle life for lithium storage applications.
JOURNAL OF ALLOYS AND COMPOUNDS
(2023)
Article
Energy & Fuels
Fan Yin, Kun-Lang Lu, Xian-Yong Wei, Zi-Chun Fan, Jia-Hao Li, Qian-Qian Kong, Zhi-Min Zong, Hong-Cun Bai
Summary: A novel co-activation/graphitization strategy using KOH and Ni was proposed to fabricate N/O self-doped hierarchical porous carbons, with coal tar pitch (CTP) as a low-cost precursor. The resulting carbons showed excellent electrochemical performance, making them promising for super-capacitor applications.
Article
Chemistry, Multidisciplinary
Xin Zhao, Xiangpeng Kong, Fengliang Wang, Ruiqi Fang, Yingwei Li
Summary: A novel strategy for the synthesis of bimetal SNCs stabilized within hierarchical porous carbons (HPC) was reported in this study. The obtained Cu-Pd@HPC composite exhibited superior catalytic activity and recycling durability in the selective transformation of furfural to maleic acid. DFT calculations revealed the mechanism behind the enhanced catalytic activity by introducing Pd into the system.
ANGEWANDTE CHEMIE-INTERNATIONAL EDITION
(2021)
Article
Chemistry, Physical
Christiane Huettner, Fei Xu, Silvia Paasch, Christian Kensy, Yi Xuan Zhai, Jiaying Yang, Eike Brunner, Stefan Kaskel
Summary: Utilizing densely N- and O-doped ultra-hydrophilic carbon (DUT-108), supercapacitors exhibit anomalous electrochemical charge storage behavior even in diluted electrolytes and pure water. Compared to a commercial carbon model, DUT-108 shows higher capacitance and ion diffusion ability at very low electrolyte concentrations. This discovery opens up new possibilities for applications in bioelectronics, utilizing the environmentally friendly and biocompatible pure water electrolyte.
Article
Chemistry, Physical
Shanshan Li, Fang Bian, Xiangying Meng, Dong Zhai, Hongwei Yang, Gaowu Qin
Summary: This study investigates the pyrolysis and graphitization mechanism of fullerenes during thermal conversion using reactive molecular dynamics simulations. The simulations reveal the dependence of pyrolysis and graphitization on temperature and carbon sources. It is found that a higher temperature accelerates the pyrolysis process and produces various porous carbon products. The number of seven-membered carbon rings is identified as an indicator of the pyrolysis and graphitization processes.
Article
Materials Science, Multidisciplinary
Yuewei Liu, Hongmin Cui, Jianguo Xu, Jinsong Shi, Nanfu Yan, Jiyong Zou, Shengyong You
Summary: Honeycomb-like porous carbons were prepared directly from potassium cinnamate pyrolysis without the need for activators or templates, with a surface area of 2198 m2/g. N-doped porous carbons were also synthesized by co-pyrolysis of potassium cinnamate and urea, and the effects of pyrolysis temperature on textural properties and N-doping were investigated. The CO2 adsorption performances of the carbons at 0 and 25 degrees C were studied, demonstrating a high CO2 uptake of 3.92 mmol/g at 25 degrees C and 1 bar pressure.
Review
Chemistry, Physical
Rui-Ping Zhang, Wen-Cui Li, Guang-Ping Hao, An-Hui Lu
Summary: Confined nanospace pyrolysis (CNP) has gained increasing attention as a general strategy for preparing task-specific hollow structured porous carbons (HSPCs) in the past decade. The unique advantages of the CNP strategy include its exceptional control over monodispersity, porosity, and internal cavity of HSPCs, leading to exceptional performance in applications such as drug delivery, energy storage, and catalysis. This review provides an overview of the CNP strategy, its advances in structural alterations, and insights into future developments for advanced task-specific hollow structured porous materials.
Article
Engineering, Environmental
R. Manthiram Karthik, Ligy Philip
Summary: This study evaluated the potential of eight low-cost materials as adsorbents for the removal of pharmaceutically active compounds and nutrients. The results showed that wood charcoal, LECA, natural zeolites, and waste AAC blocks have a promising potential for the elimination of micro-pollutants due to their superior properties. The mechanisms responsible for the sorption process were identified and the results will aid in selecting appropriate substrate materials for low-cost natural treatment systems.
JOURNAL OF ENVIRONMENTAL CHEMICAL ENGINEERING
(2021)
Article
Chemistry, Physical
Yogesh Kumar, Anita Sudhaik, Kirti Sharma, Sonu, Pankaj Raizada, Aftab Aslam Parwaz Khan, Van-Huy Nguyen, Tansir Ahamad, Pardeep Singh, Abdullah M. Asiri
Summary: The dual S-scheme ZnIn2S4/BiOCl/FeVO4 heterojunction was synthesized with enhanced light absorption, interfacial transport, and photocatalytic activity, exhibiting efficient degradation of RhB.
JOURNAL OF PHOTOCHEMISTRY AND PHOTOBIOLOGY A-CHEMISTRY
(2023)
Article
Multidisciplinary Sciences
M. Nazmul Hoque, M. Shaminur Rahman, Md. Murshed Hasan Sarkar, Md Ahashan Habib, Shahina Akter, Tanjina Akhtar Banu, Barna Goswami, Iffat Jahan, M. Anwar M. Hossain, M. Salim M. Khan, Tofazzal M. Islam
Summary: This study aimed to assess the changes in the abundance and diversity of resident mycobiome in the nasopharyngeal tract (NT) of humans due to SARS-CoV-2 infections. The study found that SARS-CoV-2 infection significantly increased the population and diversity of fungi in the NT, including a high proportion of opportunistic pathogens. The composition of the nasal mycobiota differed between COVID-19 patients, recovered individuals, and healthy controls.
Editorial Material
Biotechnology & Applied Microbiology
Tofazzal Islam, Rojana B. Azad, Shamfin H. Kasfy, Arin A. Rahman, Tasnim Z. Khan
Summary: The recent discovery of horizontal gene transfer from plant to whitefly has opened up new possibilities for studying the coevolutionary arms race between plants and insects. This forum focuses on potential biotechnological applications of this discovery.
TRENDS IN BIOTECHNOLOGY
(2023)
Article
Chemistry, Physical
Lulu Jia, Fang Xian, Yoshiyuki Sugahara, Nobuyuki Sakai, Emmanuel Picheau, Hairong Xue, Yusuke Yamauchi, Takayoshi Sasaki, Renzhi Ma
Summary: Ultrathin nanosheets of Ni-, Co-, and Fe-based (oxy)hydroxides show promising catalytic activity for OER in water electrolysis under alkaline conditions. Fe may play a crucial role in the catalytic process of Ni- or Co-based catalysts, but effective methods for preparing and studying pure Fe hydroxide nanosheets are lacking.
CHEMISTRY OF MATERIALS
(2023)
Review
Chemistry, Physical
Lijin Huang, Juan Yang, Yingji Zhao, Hirokatsu Miyata, Minsu Han, Qin Shuai, Yusuke Yamauchi
Summary: To address the insolubility and poor processability of powder covalent organic frameworks (COFs), monolithic COFs with hierarchical structures have been constructed as a feasible and effective solution. This review provides a comprehensive summary of the recent advances in the synthesis of monolithic COF materials and their application in environmental remediation, as well as discussing current challenges and future perspectives.
CHEMISTRY OF MATERIALS
(2023)
Article
Chemistry, Multidisciplinary
Xiaohong Liu, Xingtao Xu, Xiaoxu Xuan, Wei Xia, Guilin Feng, Shuaihua Zhang, Zhen-Guo Wu, Benhe Zhong, Xiaodong Guo, Keyu Xie, Yusuke Yamauchi
Summary: In this study, a yolk-shell nanoarchitecture of NASICON-structured NTP/C materials (ys-NTP@C) was developed using a metal-organic framework@ covalent organic polymer (MOF@COP) as a sacrificial template and space-confined nanoreactor. ys-NTP@C exhibited good CDI performance with high salt adsorption capacities (SACs) and good cycling stability. This study provides a new synthetic paradigm for preparing yolk-shell structured materials and highlights the potential use of yolk-shell nanoarchitectures for electrochemical desalination.
JOURNAL OF THE AMERICAN CHEMICAL SOCIETY
(2023)
Article
Chemistry, Multidisciplinary
Ved Prakash Joshi, Bhanuprakash Sahoo, Nitish Kumar, Prakash Kumar Pathak, Dharitri Rath, Rahul R. Salunkhe
Summary: To improve the energy density of supercapacitors, the use of an advanced pseudo-capacitive electrode in an asymmetric device configuration is feasible and effective. In this study, hierarchical honeycomb-like morphology with controlled Ni/Co molar ratios of NiCo2O4 (NCO) coatings on flexible stainless-steel substrates were synthesized. The fabricated asymmetric supercapacitor delivered high specific energy and power and exhibited excellent cycling stability.
Article
Materials Science, Multidisciplinary
Vishal Dutta, Anita Sudhaik, Tansir Sonu, Pankaj Raizada, Archana Singh, Tansir Ahamad, Sourbh Thakur, Quyet Van Le, Van-Huy Nguyen, Pardeep Singh
Summary: This study successfully reported the S-scheme-based hydrothermal synthesis of Ag-CuBi2O4/CNTs/Bi2S3 layered composites. The photocatalytic activity of nanocomposites with varying weight percent of Bi2S3 for the degradation of methyl orange (MO) and methylene blue (MB) dyes in the visible range was examined. Among the candidates, Ag-CuBi2O4/CNTs/Bi2S3 with a 10% loading of Bi2S3 showed the highest photocatalytic activity. The enhanced performance was attributed to the high surface area, reduced recombination rate of charge carriers, faster separation of photogenerated carriers, and high redox ability. The carbon nanotubes (CNTs) acted as a transfer bridge in the layered structure for electrons. The study provides an economical approach for obtaining a stable semiconductor-based photocatalytic system.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Review
Materials Science, Multidisciplinary
Kusum Sharma, Abhinandan Kumar, Tansir Ahamad, Quyet Van Le, Pankaj Raizada, Archana Singh, Lan Huong Nguyen, Sourbh Thakur, Van-Huy Nguyen, Pardeep Singh
Summary: Vacancy engineering in metal sulfides has attracted significant attention due to its ability to modulate the optical and physiochemical properties of photocatalysts. This review article comprehensively highlights the role of S-vacancies in improving water-splitting activity and discusses various synthesis and characterization techniques for identifying vacancy defects.
JOURNAL OF MATERIALS SCIENCE & TECHNOLOGY
(2023)
Article
Chemistry, Multidisciplinary
Muhammad Khalid, Ayesha Mustafa, Sarfraz Ahmed, Muhammad Adnan Asghar, Tansir Ahamad, Ataualpa A. C. Braga, Suvash Chandra Ojha
Summary: A series of pyrazoline-based non-fullerene compounds with ladder-like backbone and various electron accepting moieties were designed and their electronic and optical characteristics were investigated. The results showed red-shifted absorption spectrum and reduced band gap, facilitating charge transfer from HOMO to LUMO. High softness and reactivity were observed in the studied compounds, along with remarkable open circuit voltage values. THP2 was identified as a good candidate among the chromophores based on its lowest energy gap, highest Amax, and softness.
ARABIAN JOURNAL OF CHEMISTRY
(2023)
Article
Energy & Fuels
Sambhaji S. Kumbhar, Shraddha B. Bhosale, Sachin S. Pujari, Vinod V. Patil, Nitish Kumar, Rahul R. Salunkhe, Chandrakant D. Lokhande, Umakant M. Patil
Summary: The surface area of cobalt vanadium oxide (CVO) material, which contributes to enhanced charge-storing ability, is controlled through changing growth dynamics. The resulting hydrous cobalt vanadium oxide nanoparticles thin film electrodes show altered surface area and high specific capacitance (Cs) of 793 F g(-1) at 0.5 A g(-1). Aqueous and solid-state hybrid supercapacitor devices constructed using CVO1:1 demonstrate high Cs and specific energy (SE), indicating their potential in electrochemical energy storage.
Article
Environmental Sciences
Kirti Sharma, Anita Sudhaik, Pankaj Raizada, Pankaj Thakur, Xuan Minh Pham, Quyet Van Le, Van-Huy Nguyen, Tansir Ahamad, Sourbh Thakur, Pardeep Singh
Summary: This study successfully synthesized graphitic carbon nitride and magnetically recoverable alpha-Fe2O3/g-C3N4/SiO2 photo-Fenton catalysts using thermal polycondensation and in situ-simple precursor drying-calcination process. The catalyst exhibited efficient degradation of model synthetic rhodamine B (RhB) dye under simulated visible light irradiation. The degradation mechanism involved the generation of hydroxyl radicals and the complete mineralization of the dye.
ENVIRONMENTAL SCIENCE AND POLLUTION RESEARCH
(2023)
Review
Materials Science, Multidisciplinary
Javeria Bashir, Md Belal Chowdhury, Rahanuma Raihanu Kathak, Shuvashis Dey, Atiya Tahira Tasnim, Mohammed A. Amin, Yusuf Valentino Kaneti, Mostafa Kamal Masud, Md Shahriar A. Hossain
Summary: Nanoarchitectured mesoporous metal alloy films exhibit great potential in integrating the catalytic capabilities of their constituent metals, and various strategies such as template-based and template-free approaches have been developed for their fabrication. Recently, electrochemical methods have gained attention due to their simplicity, environmental friendliness, and cost-effectiveness in fabricating these films. This review comprehensively discusses the electrochemical approaches for fabricating metallic mesoporous alloy films, with a focus on bimetallic and trimetallic alloys, and their applications in hydrogen production, fuel cells, and sensors.
MATERIALS ADVANCES
(2023)
Article
Multidisciplinary Sciences
Anuradha Sharma, Muhammad Tahir, Tansir Ahamad, Naveen Kumar, Shankar Sharma, Monika Kumari, M. A. Majeed Khan, Sourbh Takhur, Pankaj Raizada
Summary: In this study, a series of Bi2O3@Fe-MOF composites were synthesized and characterized. The results showed that Bi2O3@Fe-MOF-3 exhibited high degradation efficiency for RhB and TC, making it a promising photocatalyst for the degradation of organic pollutants.
JOURNAL OF KING SAUD UNIVERSITY SCIENCE
(2023)
Article
Chemistry, Physical
Hanlin Li, Chengwei Lin, Yibing Wu, Xianfeng Qiao, Dezhi Yang, Yanfeng Dai, Qian Sun, Tansir Ahamad, Zhujin Zhao, Dongge Ma
Summary: Aggregation-induced delayed fluorescence (AIDF) materials have high quantum efficiency and efficient exciton utilization in non-doped OLEDs. This study investigates the electroluminescence (EL) mechanism of an AIDF emitter in detail and successfully fabricates high-efficiency red phosphorescent OLEDs based on it. The research provides insights into the low efficiency roll-off of AIDF non-doped OLEDs and their application in PHOLEDs.
PHYSICAL CHEMISTRY CHEMICAL PHYSICS
(2023)
Article
Materials Science, Multidisciplinary
Madeeha Riaz, Manahil Najam, Hina Imtiaz, Farooq Bashir, Tousif Hussain
Summary: This study focuses on the structural and biological analysis of Zn-Cu based biodegradable alloys for orthopedic applications. The results indicate that the alloys have good electrical conductivity and biocompatibility, with potential for promoting bone growth and healing process. Additionally, the alloys exhibit a low corrosion rate and improved corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rijo Rajeev, Sk Safikul Islam, Anitha Varghese, Gurumurthy Hegde, Suryasarathi Bose
Summary: In this study, a facile and selective electrochemical sensor was developed for the sensing of guanosine. The sensor utilized a unique porous structure and ordered framework, enabling linear detection of guanosine concentration in the range of 0.123-720 μM under specific conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Rafael V. M. Freire, Dominique Celeste de A. Dias, Jose Yago Rodrigues Silva, Dayane Kelly Dias do Nascimento Santos, Larissa T. Jesus, Ricardo O. Freire, Severino A. Junior
Summary: This study reports the extraction and isolation of euphol from nature, its adsorption in nanosized ZIF-8, and the efficacy of this system against cancer cells. Experimental and simulation results show that ZIF-8 can enhance the effectiveness of euphol against cancer cells and selectively target cancer cells.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Awad, Awatif A. Hendi, Maha M. Almoneef, Maymunah Alwehaibi, Khalid M. Ortashi, Wadha Alenazi, Fatimah S. Alfaifi, Shareefa Alahmariye, Asma Alangery, Warda Ali Alghoubiri, Haia Aldosari
Summary: In this study, magnesium-doped zinc oxide nanoparticles were synthesized and characterized. The research findings show that magnesium doping can alter the crystal structure and optical properties of zinc oxide, while enhancing its dielectric constant.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
F. J. Willars-Rodriguez, I. R. Chaverz-Urbiola, M. A. Hernandez-Landaverde, A. Zavala-Franco, E. A. Chavez-Urbiola, P. Vorobiev, Yu V. Vorobiev
Summary: This study focuses on manganese doped CdS thin films synthesized by chemical bath deposition. The incorporation of Mn2+ cations in CdS was found to influence the crystalline structure, morphology, and optoelectronic properties. Doped thin films exhibited a uniform hexagonal structure, changed growth orientation, and showed scale-like and needle-like morphologies. The bandgap and rectification speed of Schottky diodes were modified by introducing manganese. This study suggests the potential for affordable high-speed optoelectronic devices.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Mehdi Javidi, Hooman Karimi Abadeh, Fatemeh Namazi, Hamid Reza Yazdanpanah, Narjes Shirvani Shiri
Summary: This study investigated the synergistic effect of temperature, solution velocity, and sulphuric acid concentration on the corrosion behavior of carbon steel using response surface methodology. The results showed that temperature affected anodic reactions, solution velocity influenced cathodic reactions, and acid concentration altered the corrosion mechanisms by changing the properties of the surface layer.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
R. Sakthivel, Thirumoorthy Kulandaivel, Kirankumar Venkatesan Savunthari, K. Mohanraj, Hans-Uwe Dahms, Aswin kumar Anbalagan, Manjunath Rangasamy, Kien-Voon Kong
Summary: In this study, saturated fatty acids were incorporated with silane to modify viscose fabric, resulting in superhydrophobic and superoleophilic properties. The modified fabric showed excellent separation efficiency for oil and organic solvents, with high absorption capacity. The modified fabric also exhibited durability and retained its properties in harsh conditions.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Wei Zhang, Hong Lei, Wenqing Liu, Zefang Zhang, Yi Chen, Xiaogang Hu, Xiangshan Ye
Summary: In this study, EDTA-grafted alumina composite abrasives were produced by a two-step process for the CMP of sapphire substrates. Experimental results showed that the modified abrasives exhibited better dispersion properties and significantly improved polishing efficiency, with higher material removal rates and lower surface roughness. The combination of chemical reaction and mechanical action enhanced the CMP performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Shumaila Rafaqat, Bushra Perveen, Warda Raqba, Warda Imran, Arshad Hussain, Naeem Ali
Summary: This study developed a MnP-based biosensor for quantitative measurement of dye concentrations using electrochemical signals. The effects of two different dyes on MnP activity were investigated, with one dye showing inhibitory effects and the other dye having no effect. The study demonstrates the potential application of enzyme-based biosensors in dye detection and toxicological monitoring.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Jinyan Shi, Oguzhan Yavuz Bayraktar, Baris Bayrak, Burak Bodur, Ali Oz, Gokhan Kaplan, Abdulkadir Cuneyt Aydin
Summary: The elemental composition of precursors is crucial for the performance development of geopolymers. The use of lime instead of metakaolin increases the fluidity and mechanical properties of geopolymers, while the addition of gypsum decreases them. Furthermore, higher lime content exacerbates the negative effect of gypsum.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aayush Gupta, Kaveri Ajravat, Loveleen K. Brar, O. P. Pandey, Pandey Rajagopalan
Summary: This study focuses on the performance of Mn3O4-ZnO composite material in wastewater treatment and energy storage applications, and presents a detailed comparative analysis. Results show that the composite material with equal concentrations of Mn3O4 and ZnO exhibits excellent photocatalytic activity and high capacitance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
V. Murugabalaji, Matruprasad Rout, Harsh Soni, Biranchi Narayan Sahoo
Summary: This study focuses on the corrosion characteristics of AA 7075 and AA 7075 based hybrid composite fabricated using stir casting and hot rolling techniques. The results show that the hybrid composite produced by hot cross rolling exhibits better corrosion resistance compared to the base metal. The addition of a small amount of graphite improves the bonding between the matrix and reinforcements, and the hot cross rolling enhances this bonding, leading to the formation of a strong passivation oxide layer and increased charge transfer resistance, thereby improving corrosion resistance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Fangkun Ning, Qinghao Shi, Shuping Kong, Weitao Jia, Lifeng Ma
Summary: The paper investigates a new method of rolling sheets with variable chamfering amounts in both the transversal and normal directions. The feasibility of the technological process was tested through simulation and compared with experimental results. Three important process parameters, temperature, stress, and flow velocity, were used to evaluate the effects on chamfering amount before determining the optimal angle. The spread formula for evaluating the shape quality of the plate after ECR was obtained through testing and theory.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
Aqeel Abbas, M. A. Hussein, Mohamed Javid
Summary: In this study, the AM60 magnesium alloy was processed using high-energy ball milling, and the results showed that different reinforcement agents had certain effects on particle size, crystallite size, lattice strain, and dislocation density.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
Article
Materials Science, Multidisciplinary
D. S. Mahmoud, E. M. Eldesouki, W. M. Abd El-Gawad
Summary: The development of flexible and lightweight microwave-absorbing materials has become a trendy topic. This study focuses on enhancing the microwave-absorbing performance of butadiene-acrylonitrile rubber (NBR) by incorporating novel reinforcing nanofillers. The results show that the NBR nanocomposite with a loading of 16 parts per hundred rubber (phr) of LiFe 20%/Si has the best microwave-absorbing performance.
MATERIALS CHEMISTRY AND PHYSICS
(2024)
