Editorial
Environmental & Green Materials
Ashutosh Tiwari
Abstract
In 2025, the International Association of Advanced Materials (IAAM) celebrates its 15th anniversary and continues to lead the world's efforts to achieve net-zero emissions and climate neutrality. IAAM's comprehensive approach to advancing advanced materials research, bolstering global partnerships, and ...
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In 2025, the International Association of Advanced Materials (IAAM) celebrates its 15th anniversary and continues to lead the world's efforts to achieve net-zero emissions and climate neutrality. IAAM's comprehensive approach to advancing advanced materials research, bolstering global partnerships, and accelerating green transitions is highlighted in this editorial. IAAM uses cutting-edge technologies, such as carbon capture and renewable energy systems, digitalization, and circular economy models, to reduce environmental impact while adhering to the United Nations Sustainable Development Goals (UN SDGs). IAAM makes sure that both developed and emerging countries gain from sustainable innovation by putting a strong emphasis on cooperative R&D, efficient policy implementation, and the use of digital tools. The editorial also emphasizes how important smart grid infrastructures, hydrogen and electric mobility, and large-scale carbon management are becoming for a variety of industries and urban areas. Lastly, it examines how IAAM can bring together stakeholders from industry, governance, and science to embrace transformative solutions using significant global frameworks like COP summits, the G7, BRICS, ASEAN, and other regional initiatives. In the end, IAAM's leadership serves as an example of how persistent cooperation can propel the global materials community toward science and technology that is resilient, net-zero, and climate-neutral.
Research Article
Nanomaterials & Nanotechnology
Stella C; Ramachandran K
Abstract
Undoped and Co3O4-loaded (5, 10, and 15 at.%) SnO2 nanoparticles were prepared by a simple co-precipitation method. X-ray diffraction (XRD) study confirmed the presence of tetragonal phase of SnO2 and cubic stage of Co3O4 in accumulation to this the preferred orientation and texture coefficient were ...
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Undoped and Co3O4-loaded (5, 10, and 15 at.%) SnO2 nanoparticles were prepared by a simple co-precipitation method. X-ray diffraction (XRD) study confirmed the presence of tetragonal phase of SnO2 and cubic stage of Co3O4 in accumulation to this the preferred orientation and texture coefficient were derived. The texture coefficient of (200) plane increases with parallel decrease in (110) plane, which indicate the development of voids like vacancies along (110) direction. Scanning electron microscopy (SEM) and Transmission electron microscopy (TEM) analyses recognized the uniform dispersion of spherical shaped nanoparticles. EDS analysis confirmed the impurity absence in the prepared samples. UV-Vis absorption analysis confirmed that the optical band gap will get red shifted from bulk which is due to the agglomeration of nanoparticles and also due to the influences of Co3O4. The absorption peaks broadens after loading Co3O4 which indicate the surface related defects in the samples. The refractive indices derived from the band gap values had confirmed the fiber-optic sensor working under the leaky mode operation. Vibrating sample magnetometer (VSM) results confirmed the behavior of ferromagnet in pure SnO2 and antiferromagnet stage in Co3O4 loaded SnO2. The undoped SnO2 with room temperature ferromagnetism (RTFM) shows better sensitivity. The sensitivity of SnO2 and Co3O4 loaded SnO2 samples were 0.076 and 0.084, respectively. The enhanced sensitivity of Co3O4 loaded SnO2 was due to the high catalytic activity of Co3O4.
Research Article
Biomaterials & Biodevices
Patrick Jahn; Samuel Schabel
Abstract
Packaging is essential for the global transport and storage of goods. However, due to the widespread use of non-biodegradable raw materials, it is a topic of environmental discussions. Paper plays an important role in the packaging sector due to the sustainability of the material, its outstanding flexibility ...
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Packaging is essential for the global transport and storage of goods. However, due to the widespread use of non-biodegradable raw materials, it is a topic of environmental discussions. Paper plays an important role in the packaging sector due to the sustainability of the material, its outstanding flexibility and its high specific strength. But paper also has disadvantages. Paper does not possess wet strength and does not provide barrier properties. These disadvantages have so far been overcome by creating coated paper, paper laminates or through the addition of substances during production. An alternative solution could be All-Cellulose Composites (ACC), which are composites completely made of cellulosic materials.Within the scope of this research short process times will be tested to determine if it is possible to achieve an increase in wet strength and barrier effect sufficient for packaging application. In addition, it will be investigated whether moist paper can be converted into ACC and to what extent the moisture content influences the resulting properties. The papers that will be converted are produced from bleached kraft pulp fibres (NBSK) on a Rapid Köthen sheet former. The conversion to ACC takes place via an immersion process. NaOH-urea is used as the solvent system, which is cooled to -12.5 °C. The tests show that a treatment period of just a few seconds is sufficient to significantly improve tensile and wet strength. It still needs to be clarified for what kind of technical applications the barrier properties achieved so far are suitable.
Research Article
Computational Materials & Modelling
Alemu Gurmessa Gindaba; Menberu Mengesha Woldemariam; Senbeto Kena Etena; Elangovan Sampandam
Abstract
The main interest of this study is to investigate the correlation of thermo-magnetic properties with respect to each other on the basis of confinement potential strength, external magnetic field, and temperature dependence. Analytically calculated the bound state energy of the harmonic oscillatory potential ...
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The main interest of this study is to investigate the correlation of thermo-magnetic properties with respect to each other on the basis of confinement potential strength, external magnetic field, and temperature dependence. Analytically calculated the bound state energy of the harmonic oscillatory potential using Nikiforov-Uvarov formalism and numerically calculated the characteristic function of the thermodynamic properties partition function, entropy, and free energy with statistical quantum mechanics extending into the harmonic oscillator potential: Many comprehensive studies from the theoretical point of view were conducted on magneto-thermodynamic properties, but all in all, they did not place emphasis on the functional dependence of the correlation between magneto-thermal properties and their impact on the behavior of a system. Therefore, the correlation of dependent functional characteristics was not investigated. We were inspired to solve the interrelation-dependent magnetic-thermal quantities dependent on the external magnetic field, confinement potential, and temperature. We divulged comprehensive information about the system to put together this guide for the analysis and interpretation of the interrelation. Taking into consideration free energy as a functional center of magnetic and thermodynamic properties, we calculated and graphically simulated the interrelation of free energy, magnetic susceptibility, and magnetization. The nonlinear correlation of free energy and susceptibility at sufficiently low confinement potential strength determines the minimum value of free energy and the maximum value of magnetic susceptibility exhibited. As confinement increases, magnetization linearly decreases. In cases of sufficiently high confinement potential and temperature, the shortest curve of magnetic response is displayed.
Research Article
Energy Materials & Technology
Prateek Vasudeo Sawant; Mahadev Agatrao Parekar; Avadhut Vasudev Kardile; Yogesh B. Khollam; Latesh Khanderao Nikam; Ravindra Udayrao Mene
Abstract
This research explores the influence of hydrothermal reaction time on the structural, optical and morphological properties of TiO2 nanoparticles. The photocatalytic performance of TiO2 nanoparticles for the degradation of Methylene Blue is also evaluated and a co-relation between reaction time and photocatalytic ...
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This research explores the influence of hydrothermal reaction time on the structural, optical and morphological properties of TiO2 nanoparticles. The photocatalytic performance of TiO2 nanoparticles for the degradation of Methylene Blue is also evaluated and a co-relation between reaction time and photocatalytic efficiency is established. Structural analysis reveals well-defined anatase phases with enhanced crystallinity at extended reaction times. UV-Visible spectroscopy demonstrates a red shift in absorption with increased reaction time, indicative of tuneable optical properties. FE-SEM images show an increase in particle agglomeration with increasing hydrothermal duration. Photocatalytic experiments underline TiO2-12 as the most efficient catalyst, achieving a remarkable 97% degradation within 105 minutes. The Langmuir-Hinshelwood kinetics model elucidates the reaction rate dependence on hydrothermal reaction time, emphasizing the role of synthesis parameters on the photocatalytic activity of TiO2. Moreover, TiO2-12 sample shows an enhanced degradation rate compared to other samples. Based on the findings, a possible mechanism of photocatalytic degradation of Methylene Blue is proposed.
Research Article
Nanomaterials & Nanotechnology
S S Patil; V L Patil; AK Tawade; KK Sharma; TD Dongale; RM Mane; AK Bhosale; SA Vhanalkar
Abstract
Supercapacitors are emerging as an alternative to batteries due to their high-power density, low charging time, safety, electrochemical stability, and long cycle life and manganese dioxide (MnO2) is one of the best electrode materials to prepare supercapacitor. In this regard, the MnO2 as an electrode ...
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Supercapacitors are emerging as an alternative to batteries due to their high-power density, low charging time, safety, electrochemical stability, and long cycle life and manganese dioxide (MnO2) is one of the best electrode materials to prepare supercapacitor. In this regard, the MnO2 as an electrode material was synthesized by using the simplistic electrodeposition method and various characterization techniques were carried out to investigate their physicochemical properties. The scanning electron microscopy illustrates the interconnected nano-wall like morphology of MnO2 thin films, resulting in a larger surface area. This morphology is beneficial for providing more active sites for charge storage and hence leads to a higher capacitance. Therefore, the nano-wall like structure of MnO2 thin films were utilized for the electrochemical measurements and it revealed higher specific capacitance at about 465 F/g for low scan rate of 10 mV/s. Furthermore, even after 500 cycles of voltammetry, the MnO2-based supercapacitor exhibits a higher cycling stability of about 98%.
Research Article
Nanomaterials & Nanotechnology
Avadhesh Kumar Yadav
Abstract
In the past few decades, lanthanum ferrite has grown the importance in research due to attractive LPG/ humidity sensing and photolytic applications. In present study, the perovskite lanthanum ferrite was synthesized via solid state reaction route for three compositions by varying La/Fe ratio. The synthesized ...
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In the past few decades, lanthanum ferrite has grown the importance in research due to attractive LPG/ humidity sensing and photolytic applications. In present study, the perovskite lanthanum ferrite was synthesized via solid state reaction route for three compositions by varying La/Fe ratio. The synthesized samples were characterized by Fourier transform spectroscopy, UV-vis spectroscopy, X-ray diffraction and scanning electron microscopy. The crystallization of lanthanum ferrite is confirmed by X-ray diffraction studies. The average crystallite size was found to be 45-50 nm. Surface morphological study of synthesized samples shows the uniform growth of the particles and grain which leaves the pores during its inter connection. These pores act as gas adsorption sites. The optical band gap of synthesized LaFeO3 samples were found to be 3.91-4.03 eV. Prepared samples were investigated for humidity sensing application. The average sensitivity of synthesized lanthanum ferrite samples was found to be 10.18-11.46 MΩ/%RH. The average sensitivity varies with the composition of the sample.
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