Article
Chemistry, Multidisciplinary
Mahwash Mahar Gul, Khuram Shahzad Ahmad, Andrew Guy Thomas, Sobhy M. Ibrahim
Summary: The most effective way to improve electrochemical efficiency is to design nanostructures that fully utilize the advantages of all metals and create an interface impact between structures. In this study, an elongated with flowery flakes In:SnO2/La3InS6 structure was produced using diethyl dithiocarbamate compound. The substance's morphological, crystalline, and opto-electrical properties were examined. The photoelectrochemical cell's transparent photoactive electrode exhibited an extraordinary specific capacity of 603 F g(-1) at 5 mV s(-1) when illuminated, indicating its potential for renewable energy systems.
JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS
(2023)
Article
Energy & Fuels
Mahwash Mahar Gul, Khuram Shahzad Ahmad, Andrew Guy Thomas, Daoud Ali
Summary: Spin coating with a single source precursor was used to produce a transparent conductive electrode for a photoelectrochemical cell. Yb2S3:Cu2S:ZnS composite with a crystallite size of 44 nm was discovered using X-ray diffraction analysis. The composite was found to have an optical bandgap of 2.49 eV and comprised Yb, Cu, Zn, and S. Electrical investigations in a photoelectrochemical cell showed that the photocurrent density of the electrode was higher under light and the specific capacitance increased at all scan rates under illumination. The study introduced a useful photoelectrode for renewable energy systems.
Article
Green & Sustainable Science & Technology
Priyakant Pushkar, Arvind Kumar Mungray
Summary: The study showed that sediment height, anode size, and chamber volume can impact the diffusion impedance and power density in benthic microbial fuel cells (BMFCs), suggesting practical implications for improving energy generation efficiency. Microbial consortia were found to play a crucial role in mass transport phenomena and electrochemical diffusion in BMFCs.
SUSTAINABLE ENERGY TECHNOLOGIES AND ASSESSMENTS
(2021)
Article
Energy & Fuels
N. Sethulakshmi, Ajay Mohan, Sudhanshu Sharma
Summary: The nanocoral structures of CuCo2S4 and CuCoNiS4 were synthesized using a hydrothermal method. The electrocatalytic response with oxygen evolution reaction (OER) showed significant differences between CuCo2S4 and CuCoNiS4 due to the substitution of Ni ions, leading to changes in impedance behavior and specific capacitance.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
Mahwash Mahar Gul, Khuram Shahzad Ahmad, Andrew Guy Thomas, Daoud Ali
Summary: A transparent conductive electrode using Erbium sulphide and Indium sulphide composite was synthesized from a single source precursor via spin coating. The composite showed hexagonal structures and had a crystallite size of 56 nm according to X-ray diffraction analysis. X-ray photoelectron spectroscopy detected the core levels of Er 4d, In 3d, and S 2p. The composite exhibited an optical band gap of 4.12 eV. Electrical studies using various techniques in a photo-electrochemical cell demonstrated the superior performance of the electrode. The study presented an effective photoelectrode for renewable energy systems.
APPLIED MATERIALS TODAY
(2023)
Article
Chemistry, Physical
Xiaowei Shi, Chao Dai, Xin Wang, Ping Yang, Lingxia Zheng, Zhefei Zhao, Huajun Zheng
Summary: Constructing a ternary hetero-junction on TiO2, TiO2/ZIS/ZCIS showed considerable enhancement in PEC performance, achieving higher photocurrent density and improved IPCE and ABPE compared to other structures. The appropriate band alignment and fewer interface defects in the ternary hetero-junction led to enhanced conductivity and efficient interface charge separation, as supported by various photo-electrochemical measurements.
SURFACES AND INTERFACES
(2021)
Article
Electrochemistry
C. J. Felice, G. A. Ruiz, L. Saad, P. Nanni, R. E. Madrid, C. Goy, M. Zamora
Summary: In this work, we present a new method to achieve the optimum DC polarisation potential, resulting in maximum sensitivity for analyte determination using electrochemical techniques. This method is applicable to both DC and AC potentials for system polarisation. Additionally, the optimum potential is lower than the potentials typically used by classical methods, leading to reduced interference and degradation of the working electrode. In our case, we observed a 16% reduction in applied DC potential and a 3 to 5 times increase in sensitivity.
JOURNAL OF APPLIED ELECTROCHEMISTRY
(2023)
Article
Chemistry, Multidisciplinary
Mahwash Mahar Gul, Khuram Shahzad Ahmad, Andrew Guy Thomas, Ibrahim A. A. . Ibrahim
Summary: Constructing nanostructures that fully boost the performance of all metals while offering a positive inter-particle effect among frameworks is an efficient approach for enhancing electrochemical effectiveness. In this study, an elongated In:SnO2/La4NiS7 structure was created using diethyl dithiocarbamate complex. The material's surficial, crystallographical, and electrochemical characters were investigated. The photoactive electrode showed exceptional specific capacity and photocurrent generation under illumination, indicating that the exposure to light positively impacted its performance.
Article
Nanoscience & Nanotechnology
Qi Su, Chenyu Liu, Tao Xue, Qiang Zou
Summary: The study presents a pressure sensor array with photo-patterned sensitivity, achieved through the synergistic creation of the photo-defined mechanical properties of the dielectric layer and the interfacial capacitive sensing mechanism. This design allows the sensitivity of each sensing pixel to be photo-defined over a magnitude range, and a wearable measurement unit is created to fulfill the need for mapping pressure distribution.
ACS APPLIED MATERIALS & INTERFACES
(2022)
Article
Materials Science, Ceramics
Berceste Beyribey, Hwan Kim, Joshua Persky
Summary: BaCe0.7Zr0.1Y0.16Zn0.04O3-δ perovskite shows great potential as an electrolyte in industrial steam electrolysis applications, with excellent protonic conductivity and stability, especially at elevated temperatures. The formation/degradation of secondary phases in wet atmospheres is attributed to the formation of Ba(OH)2 and CeO2 around 500 degrees C. This material is a promising candidate for industrial fuel cells and steam electrolysers.
CERAMICS INTERNATIONAL
(2021)
Article
Chemistry, Analytical
Povilas Virbickas, Narvydas Denas, Ausra Valiuniene
Summary: This paper presents a detailed study on a novel electrochemical biosensor for mercury ions (Hg2+), which combines Prussian blue (PB) and catalase (Cat). The biosensor utilizes the simultaneous reactions of PB-catalyzed reduction of hydrogen peroxide and the inhibition of catalase by Hg2+ ions. It can detect Hg2+ ions at relatively low potentials using chronoamperometry and fast Fourier transform electrochemical impedance spectroscopy (FFT-EIS). The linear ranges for Hg2+ ion detection were determined to be 0.07 mM-3 mM and 0.13 mM-0.80 mM using amperometric and impedimetric techniques, respectively. Additionally, an amperometric study was conducted on a real sample of tap water containing Hg2+ ions.
Article
Energy & Fuels
S. Suganya, G. Maheshwaran, M. Ramesh Prabhu, P. Devendran, M. Krishna Kumar, S. Sudhahar
Summary: The investigation of ternary nanocomposite electrode based materials for high-performance energy conversion/storage applications has been extensively studied. The synthesized ternary Co-Mn-Zn Oxide nanocomposite exhibits excellent electrochemical properties and cycling stability.
JOURNAL OF ENERGY STORAGE
(2022)
Article
Materials Science, Multidisciplinary
M. Ben Moussa, A. Hakamy, I. Sahli, M. Abdellaoui
Summary: This paper investigates the electrochemical properties of LaNi4Fe compound obtained by mechanical alloying for two different durations. The hydrogen diffusion coefficients and particle radii of the compound are determined using cyclic voltammetry and chronoamperomety. Impedance spectra is used to describe the electrochemical processes at the electrode-electrolyte interface. A model of the electrochemical mechanism at the electrode interface of a NiMH battery is proposed.
MATERIALS TODAY COMMUNICATIONS
(2023)
Article
Chemistry, Multidisciplinary
Ravi Moreno Araujo Pinheiro Lima, Glaydson Simoes dos Reis, Mikael Thyrel, Jose Jarib Alcaraz-Espinoza, Sylvia H. Larsson, Helinando Pequeno de Oliveira
Summary: Efficient carbon electrodes for supercapacitors were prepared using spruce bark as a biomass precursor. The biochars activated by ZnCl2 showed lower internal resistance and higher areal capacitance.
Article
Materials Science, Ceramics
Muhammad Aadil, Muhammad Farooq Warsi, Philips O. Agboola, Mohamed F. Aly Aboud, Imran Shakir
Summary: A novel Co3O4/r-GO nanocomposite electrode material with higher specific capacitance, good rate capability, and excellent cycle performance has been prepared for electrochemical applications. The electrode shows a high specific capacitance of 865 Fg(-1) @ 1 Ag-1 and exceptional cycling stability with 93.2% retention after 5000 cycles, making it a promising candidate as an anode material for practical applications in the electrochemical capacitor.
CERAMICS INTERNATIONAL
(2021)
Article
Materials Science, Multidisciplinary
Muhammad Haris Azhar, Tayyaba Noor, Naseem Iqbal, Neelam Zaman, Sarah Farrukh
Summary: This study uses a novel adsorbent Metal Organic Framework (MOF) and its composites to adsorb CO2. Experiment results show that 5 wt% g-C3N4/Ni-BDC MOF exhibits the highest adsorption capacity.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Ayumu Nodera, Shinya Aikawa
Summary: In this study, a CO2 sensor capable of low-temperature operation was fabricated using an open-channel-type thin-film transistor structure with a polar surface of an oxide semiconductor. The sensor showed a sensitivity 2.9 times greater than that under an inert N2 atmosphere at an operating temperature of only 150 degrees C. The results suggest that TFTs fabricated with polar surfaces of oxide semiconductors are useful for gas-sensing applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Bindhyabasinee Mishra, Jyotirmayee Nanda, Subhra S. Brahma, K. J. Sankaran, R. Sakthivel, S. Ghadei, S. Suman
Summary: In this study, a series of polycrystalline mixed spinel ferrites were synthesized and characterized. The Mg0.5Zn0.5La0.05Fe1.95O4 ferrite showed the best response and recovery time, indicating its potential as a material for LPG sensing.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Rajashree Panda, Mitrabhanu Behera, A. Arun Kumar, Dhananjay Joshi
Summary: Rare earth doped aluminate-based phosphors are preferred over sulfide-based phosphors. The unique luminescence features of lanthanide-based materials are being utilized for multidisciplinary research and inventive applications. The past years have seen an increase in research interest in aluminate-based phosphors, leading to improvements in their long-lasting phosphorescence and phosphorescence efficiencies. Combustion synthesis route is an efficient technique for preparing nano-phosphor due to its simplicity and cost-effectiveness.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Review
Materials Science, Multidisciplinary
Younes Zohrabi
Summary: Water is essential for the survival of living organisms, but industrialization has led to contamination of water sources with heavy metals and harmful pollutants. Magnetic nano ferrites have shown potential in effectively removing heavy metals from water due to their magnetic characteristics, high surface area, surface active sites, chemical stability, and ease of modification. This review explores recent literature on the synthesis and application of magnetic ferrites for removing heavy metals from water, aiming to provide a comprehensive understanding for future research.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Baolin Liu, Chenxin Xie, Guanglei Qian, Lishan Zhou, Chenglei Zhang, Lingzhi Zhu
Summary: In this study, a self-cleaning CuO-PdO-Pd/Ti membrane has been developed for the removal of small-sized pollutants. The membrane exhibited superior removal ability and permeability compared to conventional membranes, and maintained high efficiency even after repeated tests. The CuO-PdO-Pd/Ti membrane also showed excellent removal efficiency when treating real wastewater, indicating its high potential for practical applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Debabrata Panda, Akhilesh Kumar Sahu, Krunal M. Gangawane
Summary: A variety of hierarchical nanoporous silica aerogels were synthesized from well-dispersed silica sols, exhibiting diversified particle distributions and excellent thermal properties. The silica aerogels showed low thermal conductivity and high-temperature resilience. Surface modification and dilution of silica sols further improved the thermal resistance of the aerogels. The resilient skeleton structure developed from tiny particles effectively restricted heat dissipation and maintained the porous network at high temperatures.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Hardy Shuwanto, Hairus Abdullah, Young Ku, Jenni Lie
Summary: In this study, a defective system of V-doped Fe2O3 with Pt as a cocatalyst was used for photoelectrochemical water oxidation. The defects in the VFPt-2.5 photoanode were characterized by XPS and EPR analyses. The SEM and TEM analyses revealed that the electrodeposited V-doped alpha-Fe2O3 had a nanosized morphology with an average diameter of 12 nm and a thickness of 300 nm. Under light irradiation, the VFPt-2.5 photoanode achieved a remarkable onset potential and photocurrent density. The stability test showed that Pt helped overcome the charge recombination caused by surface states.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Reza Gholipur, Hemin Mohammed Ali Khalifa, Khatereh Afrouzeh
Summary: Developing doped cathode materials is crucial for achieving low cost and high-performance energy storage. LiMn1.977(Ce, Cu, Ti, CeCuTi)0.023O4 nanoparticles show unmatched high structural stability, capacity, and safety during charge/discharge cycles. Ti-doped LiMn2O4 cathode calcined at 700 degrees C demonstrates the highest capacity and retention when multi-walled carbon nanotubes are added. The presence of titanium increases the porosity for reversible lithium storage and the dielectric constant.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
T. Amutha, M. Rameshbabu, S. Sasi Florence, G. Ramalingam, S. Muthupandi, K. Prabha
Summary: This research provides an overview of the structural analysis and magnetic characteristics of dilute magnetic semiconductor oxides (DMSOs) based on binary metal oxide nanomaterials with different ferromagnetic or paramagnetic dopants. The coprecipitation method was used to create nanoparticle samples, and the results showed certain ferromagnetic behavior and increased magnetic properties.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Preeti Kumari, Vipul Srivastava, Ramesh Sharma, Hamid Ullah
Summary: In this study, the rare-earth ferrites perovskite RFeO3 (R = Pr, Nd) were investigated for their various properties including structural, electronic, magnetic, optical, thermodynamic, and thermoelectric behavior. The study found that these materials exhibit half-metallic behavior under certain conditions, and their optical and thermoelectric properties were evaluated, making them potential candidates for spintronic devices and UV absorbers.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Shuting Yuan, Tianchi Wang, Tian Feng, Jian Kong
Summary: In this study, Fe/Fe3O4/C hollow electromagnetic wave absorbers were prepared using hollow ceiba fibers as templates. The proposed hollow structure could reflect and scatter electromagnetic waves multiple times, leading to significant energy consumption. The impedance matching of magnetic materials and biochar enabled the joint absorption of magnetic and dielectric losses to absorb electromagnetic waves.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
G. R. Mamatha, B. R. Radha Krushna, J. Malleshappa, S. C. Sharma, Satish Kumar, C. Krithika, Nandini Robin Nadar, Dileep Francis, K. Manjunatha, Sheng Yun Wu, H. Nagabhushana
Summary: Nanostructured SrAl2O4:Tb3+/M (M = Li+, Na+, K+, Ca2+, Bi3+) green nanophosphors were synthesized using an environmentally friendly combustion process and Areca nut as a sustainable fuel source. The introduction of alkali metal co-dopants optimized the luminescent intensity and showed potential for data security applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Tomoyuki Tachibana, Akihiro Yabuki
Summary: A one-step thermal-reduction method was used to synthesize copper sulfide films with different compositions and pillar-like structures, through adjusting the sulfur ratio and incorporating excess sulfur during the synthesis process.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)
Article
Materials Science, Multidisciplinary
Manal A. Mahdy, I. K. El Zawawi, Manal Mounir Ahmad
Summary: Pure PVA and its nanocomposites with CuO and/or CoFe2O4 films were prepared and characterized. The optical properties of the films can be modulated by controlling the percentage of CuO and/or CoFe2O4. The nanocomposites exhibit good ferromagnetic behavior, making the prepared films potentially useful in antenna system miniaturization and flexible magneto-electronic applications.
MATERIALS SCIENCE AND ENGINEERING B-ADVANCED FUNCTIONAL SOLID-STATE MATERIALS
(2024)