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
Vikas Kumar Pandey, Sanjeev Verma, Bhawna Verma
Summary: This study investigated the use of waste coconut shells to prepare activated carbon and its application in the fabrication of a ternary hybrid composite. The fabricated electrode exhibited high specific capacitance and excellent cycle stability, which could contribute to the development of new generation energy storage devices.
CHEMICAL PHYSICS LETTERS
(2022)
Article
Materials Science, Ceramics
Ekaterina A. Levkevich, Ruslan M. Zakalyukin
Summary: This study successfully created and investigated solid-state fluoride-ion galvanic cells with carbon nanotubes and nanocomposites based on them as additives in the cathode material. The addition of these additives improved the charge-discharge currents, with the highest open-circuit voltage (OCV) and current density observed in the cathode material with carbon nanotubes filled with tin fluoride.
CERAMICS INTERNATIONAL
(2023)
Article
Energy & Fuels
Nilufer Kocyigit, Metin Gencten, Mutlu Sahin, Yucel Sahin
Summary: The Ce/Cr redox flow battery system was experimentally studied for the first time in an aqueous acidic medium, providing valuable data for potential alternative redox couples in redox flow batteries through optimization of acid and active ion concentrations, as well as analysis of electrode surface morphology. Results showed promising cell potential and discharge capacity values, indicating the potential for further exploration of alternative redox couples in redox flow batteries.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Materials Science, Multidisciplinary
Naseem Akhtar, Malika Rani, Arshad Mahmood, Kashmala Tariq, G. Murtaza, Asma A. Alothman, Rahaf S. AL-zahrani, Sajid Ali, Naveed Kasuar Janjua, Aqeel Shah
Summary: This work successfully synthesized NaCr2O4/GO nanocomposite using co-precipitation method for energy storage applications. Characterizations such as SEM and XRD were performed to investigate the optical and structural properties. The nanocomposite showed reduced crystalline size and high specific capacitance, making it suitable for various applications.
JOURNAL OF MATERIALS RESEARCH AND TECHNOLOGY-JMR&T
(2021)
Article
Energy & Fuels
Rubia Shafique, Malika Rani, Arshad Mahmood, Razan A. Alshgari, Kiran Batool, Tahira Yaqoob, Naveed Kausar Janjua, Safia Khan, Shamim Khan, Ghulam Murtaza
Summary: A novel method of synthesizing MXene/CoCr2O4 nanoelectrode material with high stability and conductivity has been reported. The optimized nanocomposite shows superior electrochemical performance in alkaline electrolyte, indicating its potential applications in electrochemical devices such as supercapacitors.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2022)
Article
Green & Sustainable Science & Technology
Roma Agrahari, Radha Rani
Summary: A litre-scale multi-modular microbial fuel cell was operated using exo-electrogenic inoculum enriched from cow-dung for 45 days in batch mode, under three different circuit connections. Electrochemical analysis showed that the individual circuit had the highest power output and the lowest internal resistance. Additionally, the study reported COD removal rate and columbic efficiency of the MFC.
JOURNAL OF CLEANER PRODUCTION
(2022)
Article
Energy & Fuels
A. F. Romero, R. Tomey, P. Ocon, J. Valenciano, H. Fricke
Summary: The study investigates the effect of incorporating boric acid into lead-acid batteries to enhance their performance. It was found that adding 0.50 wt% boric acid reduces the oxide reduction charge by 23% and increases the resistance of the corrosion process. Adding boric acid before cell formation improves the Cold Cranking Ampere (CCA) performance by 26%, while adding it after formation significantly reduces the Oxygen Evolution Reaction (OER) rate by 75% on the positive plate. Both addition methods slow down the corrosion growth in the positive plate, with reductions of 20% (addition before formation) and 12% (addition after formation).
JOURNAL OF ENERGY STORAGE
(2023)
Article
Engineering, Electrical & Electronic
Rizwan Wahab, Manawwer Alam
Summary: In this study, γ-Al2O3 quantum dots were used as a sensor to detect the organosulfur compound thiourea. The study showed the feasibility and stability of the γ-Al2O3QDs/GCE sensor under different conditions through various experiments and analyses.
SENSORS AND ACTUATORS A-PHYSICAL
(2022)
Article
Chemistry, Physical
Aaliya Qureashi, Altaf Hussain Pandith, Arshid Bashir, Taniya Manzoor, Lateef Ahmad Malik, Faheem A. Sheikh
Summary: The successful surface modification of Fe3O4 nanoparticles with sodium citrate has led to the development of a promising magnetic sorbent material with abundant metal trap centers, showing excellent adsorption capacity for Pb2+ ions. Experimental and theoretical studies confirm the positive impact of surface functionalization on heavy metal ion detection, suggesting its importance in designing absorbent materials. Additionally, the citrate@Fe3O4 nanoparticles exhibit outstanding stability and regeneration over multiple sorption cycles.
SURFACES AND INTERFACES
(2021)
Article
Energy & Fuels
Wissem Zayani, Samir Azizi, Karam S. El-Nasser, Ibraheem Othman Ali, Michel Moliere, Nouredine Fenineche, Hamadi Mathlouthi, Jilani Lamloumi
Summary: Zinc ferrite spinel alloy synthesized using sol-gel technique was studied for its hydrogen storage properties and applied as an anode in Ni-MH accumulators. Various electromechanical methods were used to examine the hydrogen storage properties, showing good cycling stability. The electrolyte/ZnFe2O4 anode interface was studied using electrochemical impedance spectroscopy before and after activation.
INTERNATIONAL JOURNAL OF ENERGY RESEARCH
(2021)
Article
Energy & Fuels
Asifa Mumtaz, Javed Iqbal, Muhammad Oneeb
Summary: In this study, (hafnium oxide)x-(iron oxide)1-x based electrodes have been designed to achieve a high-performance supercapacitor. The electrode integrates nanostructure design with synergistic effects of hafnium oxide and iron oxide nanoparticles, resulting in remarkable charge-discharge capabilities and superior charge storage capacity. The fabricated electrode exhibits outstanding specific energy density and specific power density.
JOURNAL OF ENERGY STORAGE
(2023)
Article
Polymer Science
Bipin S. Chikkatti, Ashok M. Sajjan, Prakash B. Kalahal, Nagaraj R. Banapurmath, T. M. Yunus Khan, Shaik Dawood Abdul Khadar, Shaik Mohamed Shamsudeen, A. B. Raju
Summary: This study prepares polymer gel electrolytes using poly (vinyl alcohol) (PVA) and tetraethylorthosilicate (TEOS) and optimizes their concentration for valve-regulated lead-acid batteries. The optimized gel electrolyte shows high capacity and cycle performance, making it a promising candidate for practical battery applications.
Article
Chemistry, Analytical
Siavash Nazari, Mehdi Shabani-Nooshabadi, Neda Ziaie
Summary: A highly specific electrochemical sensor was developed for the identification and detection of quetiapine (QTPF). The modification of a carbon paste electrode (CPE) with a nanocomposite of iron, lithium ions, and manganese based on nitro-doped carbon enhanced the limit of detection and identification of QTPF. The nanocomposites were characterized using SEM, XRD, and FTIR. The electrochemical behavior of the drug with the modified electrode was studied using cyclic voltammetry, differential pulse voltammetry, chronoamperometry, and EIS. The sensor showed a linear range of 0.090-900 μM and a detection limit of 0.011 μM.
MICROCHEMICAL JOURNAL
(2023)
Article
Materials Science, Multidisciplinary
Aleksandra S. Popovic, Milica M. Gvozdenovic, Ana Jankovic, Branimir Z. Jugovic, Branimir N. Grgur
Summary: Electrochemical Energy Storage (EES) technologies are crucial for reducing the use of fossil fuels and promoting environmental consciousness. Researchers are searching for efficient electrode materials to advance EES systems. However, newcomers to the field often lack familiarity with the core concepts and procedures. This study addresses this gap by providing a step-by-step procedure for analyzing the electrochemical properties of polypyrrole, a widely used conducting polymer with potential as an electrode material.
Article
Materials Science, Composites
A. Javaid, K. K. C. Ho, A. Bismarck, J. H. G. Steinke, M. S. P. Shaffer, E. S. Greenhalgh
JOURNAL OF COMPOSITE MATERIALS
(2018)
Article
Materials Science, Composites
Atif Javaid, Muhammad B. Zafrullah, Fareed ul Haq Khan, Ghulam M. Bhatti
JOURNAL OF COMPOSITE MATERIALS
(2019)
Article
Materials Science, Ceramics
Khadija Tul Kubra, Atif Javaid, Bebi Patil, Rehana Sharif, Ayesha Salman, Shamaila Shahzadi, Sofia Siddique, Sheeba Ghani
CERAMICS INTERNATIONAL
(2019)
Article
Materials Science, Multidisciplinary
Atif Javaid, Muhammad Irfan
MATERIALS RESEARCH EXPRESS
(2019)
Article
Chemistry, Physical
Khadija Tul Kubra, Rehana Sharif, Bebi Patil, Atif Javaid, Shamaila Shahzadi, Ayesha Salman, Sofia Siddique, Ghulam Ali
JOURNAL OF ALLOYS AND COMPOUNDS
(2020)
Article
Engineering, Electrical & Electronic
Khadija Tul Kubra, Atif Javaid, Rehana Sharif, Ghulam Ali, Fauzia Iqbal, Ayesha Salman, Fozia Shaheen, Annam Butt, Faiza Jan Iftikhar
JOURNAL OF MATERIALS SCIENCE-MATERIALS IN ELECTRONICS
(2020)
Article
Materials Science, Composites
Atif Javaid, Hafiz Tanveer Ashraf, Muhammad Mustaghees, Arslan Khalid
Summary: This study investigates the fire-retardant performance of lightweight sandwich composites with modified epoxy impregnated carbon and glass fabric reinforcements and an aluminum honeycomb core. It demonstrates improved fire-retardant properties through phosphoric acid treatment of carbon fiber reinforcements and impregnation of epoxy with ammonium polyphosphate (APP) additive. The laboratory aging behavior and mechanical properties of the composites are evaluated to determine the panels' degradation resistance and strength under extreme conditions.
POLYMER COMPOSITES
(2021)
Article
Materials Science, Multidisciplinary
Usama Siddiqui, Hina Khalid, Sarah Ghafoor, Atif Javaid, Anila Asif, Abdul Samad Khan
Summary: The study evaluated the physical and mechanical properties of nano-hydroxyapatite grafted electrical-grade glass fibers (nHA/E-glass fibers) based composites. Results showed that the addition of 60wt% nHA/E-glass fibers increased the storage modulus values and surface roughness. This composite material shows promising potential as a dental restorative composite.
MATERIALS CHEMISTRY AND PHYSICS
(2021)
Article
Materials Science, Composites
Mimi Syahira Masraff, Amir Muhammad Noh Amin Abdul Rahman, Mohd Riduwan Ramli, Mohamad Kamarol Mohd Jamil, Mohd Khalil Abdullah, Muhammad Zeshan Ali, Zulkifli Ahmad
Summary: In this study, silver nanoparticles in PDMS composite were aligned under a direct current electric field, leading to an improved thermal conductivity of the material. Anisotropic conductive behavior was observed, with a significant increase in thermal conductivity in the longitudinal direction compared to the lateral direction, attributed to the mechanism of exclusion, agglomeration, and alignment of the filler during curing process. The observed change in thermal conductivity with filler volume concentration was in agreement with the Effective Medium Theory (EMT), and predicted values for the filler-matrix interface and filler-filler interface resistance were also determined.
COMPOSITES SCIENCE AND TECHNOLOGY
(2021)
Article
Engineering, Multidisciplinary
Atif Javaid, Shahbano Hashmi
Summary: The flame retardancy and mechanical properties of novel ultra-lightweight truss core-based structures with varying ammonium polyphosphate (APP) content were explored. The results showed that the formulation with 10% APP achieved good flame retardancy and mechanical properties. These fabricated sandwich composites have the potential for use in civil infrastructures and marine industries.
Article
Materials Science, Multidisciplinary
Muhammad Zeshan Ali, Ku Marsilla Ku Ishak, Mohamad Adzhar Md Zawawi, Mariatti Jaafar, Zulkifli Ahmad
Summary: Organic thermoelectric materials are of great interest for flexible thermoelectric devices. The trade-off effect between conductivity and Seebeck coefficient is observed in PEDOT:PSS. Triflic acid pre-treatment is used in this work to simultaneously increase conductivity and Seebeck coefficient. The improvement is attributed to the increased order of long-range crystal packing and hopping between newly generated DOS. HRTEM and XRD data confirm the improved crystallinity. Acid treatment induces conformational change in PEDOT:PSS molecules, leading to increased conductivity and Seebeck coefficient.
Article
Polymer Science
Muhammad Zeshan Ali, Ku Marsilla Ku Ishak, Mohamad Adzhar Md Zawawi, Mariatti Jaafar, Zulkifli Ahmad
Summary: The conducting polymer PEDOT:PSS has tunable electrical conductivity and easy processability. It can be blended with a durable polymer like PDMS for stretchable electronic materials and devices. In this research, a conductive ink was developed using a coupling agent to create a cross-link network. The strain sensor made from this ink showed high sensitivity, fast response time, and good stability in capturing real-time finger and wrist motions.
MACROMOLECULAR CHEMISTRY AND PHYSICS
(2022)
Article
Materials Science, Multidisciplinary
Muhammad Zeshan Ali, Ku Marsilla Ku Ishak, Mohamad Adzhar Md Zawawi, Zulaikha Zulkifli, Mariatti Jaafar, Zulkifli Ahmad
Summary: Poly(3,4-ethylenedioxythiophene):poly(styrenesulfonic acid) (PEDOT:PSS) is an organic conducting material with tunable conductivity, high transparency, facile processability and stability. Treatment with DMSO solvent and hydrobromic acid solution in DMSO significantly improves the electrical conductivity of PEDOT:PSS. The mechanism of the conductivity improvement is attributed to the diffusion of DMSO and HBr-DMSO solution into PEDOT:PSS, resulting in charge screening and weakening of the electrostatic interactions. The treated PEDOT:PSS films exhibit low sheet resistance and high transparency, making them suitable for optoelectronic applications such as organic solar cells.
ORGANIC ELECTRONICS
(2022)