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Sajid S, Alzahmi S, Tabet N, Haik Y, Obaidat IM. Fabricating Planar Perovskite Solar Cells through a Greener Approach. Nanomaterials (Basel) 2024; 14:594. [PMID: 38607128 PMCID: PMC11013819 DOI: 10.3390/nano14070594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/28/2024] [Revised: 03/18/2024] [Accepted: 03/26/2024] [Indexed: 04/13/2024]
Abstract
High-quality perovskite thin films are typically produced via solvent engineering, which results in efficient perovskite solar cells (PSCs). Nevertheless, the use of hazardous solvents like precursor solvents (N-Methyl-2-pyrrolidone (NMP), dimethyl sulfoxide (DMSO), dimethylformamide (DMF), gamma-butyrolactone (GBL)) and antisolvents (chlorobenzene (CB), dibutyl ether (DEE), diethyl ether (Et2O), etc.) is crucial to the preparation of perovskite solutions and the control of perovskite thin film crystallization. The consumption of hazardous solvents poses an imminent threat to both the health of manufacturers and the environment. Consequently, before PSCs are commercialized, the current concerns about the toxicity of solvents must be addressed. In this study, we fabricated highly efficient planar PSCs using a novel, environmentally friendly method. Initially, we employed a greener solvent engineering approach that substituted the hazardous precursor solvents with an environmentally friendly solvent called triethyl phosphate (TEP). In the following stage, we fabricated perovskite thin films without the use of an antisolvent by employing a two-step procedure. Of all the greener techniques used to fabricate PSCs, the FTO/SnO2/MAFAPbI3/spiro-OMeTAD planar device configuration yielded the highest PCE of 20.98%. Therefore, this work addresses the toxicity of the solvents used in the perovskite film fabrication procedure and provides a promising universal method for producing PSCs with high efficiency. The aforementioned environmentally friendly approach might allow for PSC fabrication on an industrial scale in the future under sustainable conditions.
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Affiliation(s)
- Sajid Sajid
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Nouar Tabet
- Department of Applied Physics and Astronomy, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates;
| | - Yousef Haik
- Department of Mechanical and Nuclear Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates;
- Department of Mechanical Engineering, The University of Jordan, Amman P.O. Box 11942, Jordan
| | - Ihab M. Obaidat
- Department of Applied Physics and Astronomy, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates;
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Arbi HM, Vijayalakshmi L, Anil Kumar Y, Alzahmi S, Gopi CVVM, Rusydi A, Obaidat IM. A Facile Two-Step Hydrothermal Synthesis of Co(OH) 2@NiCo 2O 4 Nanosheet Nanocomposites for Supercapacitor Electrodes. Nanomaterials (Basel) 2023; 13:1981. [PMID: 37446497 DOI: 10.3390/nano13131981] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/28/2023] [Revised: 06/21/2023] [Accepted: 06/23/2023] [Indexed: 07/15/2023]
Abstract
The composites of NiCo2O4 with unique structures were substantially investigated as promising electrodes. In this study, the unique structured nanosheets anchored on nickel foam (Ni foam) were prepared under the hydrothermal technique of NiCo2O4 and subsequent preparation of Co(OH)2. The Co(OH)2@NiCo2O4 nanosheet composite has demonstrated higher specific capacitances owing to its excellent specific surface region, enhanced rate properties, and outstanding electrical conductivities. Moreover, the electrochemical properties were analyzed in a three-electrode configuration to study the sample material. The as-designed Co(OH)2@NiCo2O4 nanosheet achieves higher specific capacitances of 1308 F·g-1 at 0.5 A·g-1 and notable long cycles with 92.83% capacity retention over 6000 cycles. The Co(OH)2@NiCo2O4 nanosheet electrode exhibits a long life span and high capacitances compared with the NiCo2O4 and Co(OH)2 electrodes, respectively. These outstanding electrochemical properties are mainly because of their porous construction and the synergistic effects between NiCo2O4 and Co(OH)2. Such unique Co(OH)2@NiCo2O4 nanosheets not only display promising applications in renewable storage but also reiterate to scientists of the unlimited potential of high-performance materials.
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Affiliation(s)
- Hammad Mueen Arbi
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - L Vijayalakshmi
- Department of Automotive Engineering, Yeungnam University, Gyeongsan-si 38541, Republic of Korea
| | - Yedluri Anil Kumar
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Chandu V V Muralee Gopi
- Department of Electrical Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - Andrivo Rusydi
- Advanced Research Initiative for Correlated-Electron Systems (ARiCES), Department of Physics, National University of Singapore, Singapore 117551, Singapore
| | - Ihab M Obaidat
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Arbi HM, Koyyada G, Anil Kumar Y, Kumar Kulurumotlakatla D, Kim JH, Moniruzzaman M, Alzahmi S, Obaidat IM. Hierarchically Developed Ni(OH) 2@MgCo 2O 4 Nanosheet Composites for Boosting Supercapacitor Performance. Nanomaterials (Basel) 2023; 13:nano13081414. [PMID: 37110999 PMCID: PMC10147020 DOI: 10.3390/nano13081414] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/17/2023] [Revised: 04/10/2023] [Accepted: 04/13/2023] [Indexed: 06/01/2023]
Abstract
MgCo2O4 nanomaterial is thought to be a promising candidate for renewable energy storage and conversions. Nevertheless, the poor stability performances and small specific areas of transition-metal oxides remain a challenge for supercapacitor (SC) device applications. In this study, sheet-like Ni(OH)2@MgCo2O4 composites were hierarchically developed on nickel foam (NF) using the facile hydrothermal process with calcination technology, under carbonization reactions. The combination of the carbon-amorphous layer and porous Ni(OH)2 nanoparticles was anticipated to enhance the stability performances and energy kinetics. The Ni(OH)2@MgCo2O4 nanosheet composite achieved a superior specific capacitance of 1287 F g-1 at a current value of 1 A g-1, which is higher than that of pure Ni(OH)2 nanoparticles and MgCo2O4 nanoflake samples. At a current density of 5 A g-1, the Ni(OH)2@MgCo2O4 nanosheet composite delivered an outstanding cycling stability of 85.6%, which it retained over 3500 long cycles with an excellent rate of capacity of 74.5% at 20 A g-1. These outcomes indicate that such a Ni(OH)2@MgCo2O4 nanosheet composite is a good contender as a novel battery-type electrode material for high-performance SCs.
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Affiliation(s)
- Hammad Mueen Arbi
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Ganesh Koyyada
- Department of Chemical Engineering, Yeungnam University, 214-1, Daehak-ro 280, Gyeongsan 712-749, Republic of Korea
| | - Yedluri Anil Kumar
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Dasha Kumar Kulurumotlakatla
- Graduate School of Convergence Science, Pusan Nationfivel University, San 30 Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea
| | - Jae Hong Kim
- Department of Chemical Engineering, Yeungnam University, 214-1, Daehak-ro 280, Gyeongsan 712-749, Republic of Korea
| | - Md Moniruzzaman
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si 13120, Republic of Korea
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Gopi CVVM, Ramesh R, Vinodh R, Alzahmi S, Obaidat IM. Facile Synthesis of Battery-Type CuMn 2O 4 Nanosheet Arrays on Ni Foam as an Efficient Binder-Free Electrode Material for High-Rate Supercapacitors. Nanomaterials (Basel) 2023; 13:1125. [PMID: 36986018 PMCID: PMC10058770 DOI: 10.3390/nano13061125] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/16/2023] [Accepted: 03/20/2023] [Indexed: 06/18/2023]
Abstract
The development of battery-type electrode materials with hierarchical nanostructures has recently gained considerable attention in high-rate hybrid supercapacitors. For the first time, in the present study novel hierarchical CuMn2O4 nanosheet arrays (NSAs) nanostructures are developed using a one-step hydrothermal route on a nickel foam substrate and utilized as an enhanced battery-type electrode material for supercapacitors without the need of binders or conducting polymer additives. X-ray diffraction, scanning electron microscopy (SEM), and transmission electron microscopy (TEM) techniques are used to study the phase, structural, and morphological characteristics of the CuMn2O4 electrode. SEM and TEM studies show that CuMn2O4 exhibits a nanosheet array morphology. According to the electrochemical data, CuMn2O4 NSAs give a Faradic battery-type redox activity that differs from the behavior of carbon-related materials (such as activated carbon, reduced graphene oxide, graphene, etc.). The battery-type CuMn2O4 NSAs electrode showed an excellent specific capacity of 125.56 mA h g-1 at 1 A g-1 with a remarkable rate capability of 84.1%, superb cycling stability of 92.15% over 5000 cycles, good mechanical stability and flexibility, and low internal resistance at the interface of electrode and electrolyte. Due to their excellent electrochemical properties, high-performance CuMn2O4 NSAs-like structures are prospective battery-type electrodes for high-rate supercapacitors.
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Affiliation(s)
- Chandu V. V. Muralee Gopi
- Department of Electrical Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
| | - R. Ramesh
- Department of Chemical Engineering, School of Mechanical, Chemical and Materials Engineering, Adama Science and Technology University, Adama P.O. Box 1888, Ethiopia
| | - Rajangam Vinodh
- Green Hydrogen Lab (GH2Lab), Institute for Hydrogen Research (IHR), Université du Québec à Trois-Rivières (UQTR), 3351 Boulevard des Forges, Trois-Rivières, QC G9A 5H7, Canada
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Ihab M. Obaidat
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Anil Kumar Y, Koyyada G, Ramachandran T, Kim JH, Sajid S, Moniruzzaman M, Alzahmi S, Obaidat IM. Carbon Materials as a Conductive Skeleton for Supercapacitor Electrode Applications: A Review. Nanomaterials (Basel) 2023; 13:1049. [PMID: 36985942 PMCID: PMC10057628 DOI: 10.3390/nano13061049] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 03/02/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Supercapacitors have become a popular form of energy-storage device in the current energy and environmental landscape, and their performance is heavily reliant on the electrode materials used. Carbon-based electrodes are highly desirable due to their low cost and their abundance in various forms, as well as their ability to easily alter conductivity and surface area. Many studies have been conducted to enhance the performance of carbon-based supercapacitors by utilizing various carbon compounds, including pure carbon nanotubes and multistage carbon nanostructures as electrodes. These studies have examined the characteristics and potential applications of numerous pure carbon nanostructures and scrutinized the use of a wide variety of carbon nanomaterials, such as AC, CNTs, GR, CNCs, and others, to improve capacitance. Ultimately, this study provides a roadmap for producing high-quality supercapacitors using carbon-based electrodes.
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Affiliation(s)
- Yedluri Anil Kumar
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Ganesh Koyyada
- Department of Chemical Engineering, Yeungnam University, 214-1 Daehak-ro 280, Gyeongsan 712-749, Gyeongbuk-do, Republic of Korea
| | - Tholkappiyan Ramachandran
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- Department of Physics, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Jae Hong Kim
- Department of Chemical Engineering, Yeungnam University, 214-1 Daehak-ro 280, Gyeongsan 712-749, Gyeongbuk-do, Republic of Korea
| | - Sajid Sajid
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Md Moniruzzaman
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Ihab M. Obaidat
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- Department of Physics, College of Science, United Arab Emirates University, Al Ain 15551, United Arab Emirates
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Sajid S, Alzahmi S, Salem IB, Park J, Obaidat IM. Lead-Free Perovskite Homojunction-Based HTM-Free Perovskite Solar Cells: Theoretical and Experimental Viewpoints. Nanomaterials (Basel) 2023; 13:983. [PMID: 36985875 PMCID: PMC10054775 DOI: 10.3390/nano13060983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 03/01/2023] [Revised: 03/06/2023] [Accepted: 03/07/2023] [Indexed: 06/18/2023]
Abstract
Simplifying the design of lead-free perovskite solar cells (PSCs) has drawn a lot of interest due to their low manufacturing cost and relative non-toxic nature. Focus has been placed mostly on reducing the toxic lead element and eliminating the requirement for expensive hole transport materials (HTMs). However, in terms of power conversion efficiency (PCE), the PSCs using all charge transport materials surpass the environmentally beneficial HTM-free PSCs. The low PCEs of the lead-free HTM-free PSCs could be linked to poorer hole transport and extraction as well as lower light harvesting. In this context, a lead-free perovskite homojunction-based HTM-free PSC was investigated, and the performance was then assessed using a Solar Cell Capacitance Simulator (SCAPS). A two-step method was employed to fabricate lead-free perovskite homojunction-based HTM-free PSCs in order to validate the simulation results. The simulation results show that high hole mobility and a narrow band gap of cesium tin iodide (CsSnI3) boosted the hole collection and absorption spectrum, respectively. Additionally, the homojunction's built-in electric field, which was identified using SCAPS simulations, promoted the directed transport of the photo-induced charges, lowering carrier recombination losses. Homojunction-based HTM-free PSCs having a CsSnI3 layer with a thickness of 100 nm, defect density of 1015 cm-3, and interface defect density of 1018 cm-3 were found to be capable of delivering high PCEs under a working temperature of 300 K. When compared to formamidinium tin iodide (FASnI3)-based devices, the open-circuit voltage (Voc), short-circuit density (Jsc), fill factor (FF), and PCE of FASnI3/CsSnI3 homojunction-based HTM-free PSCs were all improved from 0.66 to 0.78 V, 26.07 to 27.65 mA cm-2, 76.37 to 79.74%, and 14.62 to 19.03%, respectively. In comparison to a FASnI3-based device (PCE = 8.94%), an experimentally fabricated device using homojunction of FASnI3/CsSnI3 performs better with Voc of 0.84 V, Jsc of 22.06 mA cm-2, FF of 63.50%, and PCE of 11.77%. Moreover, FASnI3/CsSnI3-based PSC is more stable over time than its FASnI3-based counterpart, preserving 89% of its initial PCE. These findings provide promising guidelines for developing highly efficient and environmentally friendly HTM-free PSCs based on perovskite homojunction.
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Affiliation(s)
- Sajid Sajid
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Imen Ben Salem
- College of Natural and Health Sciences, Zayed University, Abu Dhabi P.O. Box 144534, United Arab Emirates;
| | - Jongee Park
- Department of Metallurgical and Materials Engineering, Atilim University, Ankara 06836, Turkey;
| | - Ihab M. Obaidat
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Anil Kumar Y, Koyyada G, Kumar Kulurumotlakatla D, Kim JH, Moniruzzaman M, Alzahmi S, Obaidat IM. In Situ Grown Mesoporous Structure of Fe-Dopant@NiCoO X@NF Nanoneedles as an Efficient Supercapacitor Electrode Material. Nanomaterials (Basel) 2023; 13:nano13020292. [PMID: 36678044 PMCID: PMC9866587 DOI: 10.3390/nano13020292] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/06/2022] [Revised: 12/30/2022] [Accepted: 01/05/2023] [Indexed: 05/10/2023]
Abstract
In this study, we designed mixed metal oxides with doping compound nano-constructions as efficient electrode materials for supercapacitors (SCs). We successfully prepared the Fe-dopant with NiCoOx grown on nickel foam (Fe-dopant@NiCoOx@NF) through a simple hydrothermal route with annealing procedures. This method provides an easy route for the preparation of high activity SCs for energy storage. Obtained results revealed that the Fe dopant has successfully assisted NiCoOx lattices. The electrochemical properties were investigated in a three-electrode configuration. As a composite electrode for SC characteristics, the Fe-dopant@NiCoOx@NF exhibits notable electrochemical performances with very high specific capacitances of 1965 F g−1 at the current density of 0.5 A g−1, and even higher at 1296 F g−1 and 30 A g−1, respectively, which indicate eminent and greater potential for SCs. Moreover, the Fe-dopant@NiCoOx@NF nanoneedle composite obtains outstanding cycling performances of 95.9% retention over 4500 long cycles. The improved SC activities of Fe-dopant@NiCoOx@NF nanoneedles might be ascribed to the synergistic reactions of the ternary mixed metals, Fe-dopant, and the ordered nanosheets grown on NF. Thus, the Fe-dopant@NiCoOx@NF nanoneedle composite with unique properties could lead to promising SC performance.
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Affiliation(s)
- Yedluri Anil Kumar
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Ganesh Koyyada
- Department of Chemical Engineering, Yeungnam University, 214-1, Daehak-ro 280, Gyeongsan 712-749, Gyeongbuk-do, Republic of Korea
| | - Dasha Kumar Kulurumotlakatla
- Graduate School of Convergence Science, Pusan National University, San 30 Jangjeon-dong, Geumjeong-gu, Busan 609-735, Republic of Korea
| | - Jae Hong Kim
- Department of Chemical Engineering, Yeungnam University, 214-1, Daehak-ro 280, Gyeongsan 712-749, Gyeongbuk-do, Republic of Korea
| | - Md Moniruzzaman
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si 13120, Gyeonggi-do, Republic of Korea
- Correspondence: (M.M.); (S.A.); (I.M.O.)
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- Correspondence: (M.M.); (S.A.); (I.M.O.)
| | - Ihab M. Obaidat
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- Correspondence: (M.M.); (S.A.); (I.M.O.)
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Sajid S, Alzahmi S, Wei D, Salem IB, Park J, Obaidat IM. Diethanolamine Modified Perovskite-Substrate Interface for Realizing Efficient ESL-Free PSCs. Nanomaterials (Basel) 2023; 13:250. [PMID: 36678003 PMCID: PMC9865489 DOI: 10.3390/nano13020250] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Revised: 12/31/2022] [Accepted: 01/04/2023] [Indexed: 06/17/2023]
Abstract
Simplifying device layout, particularly avoiding the complex fabrication steps and multiple high-temperature treatment requirements for electron-selective layers (ESLs) have made ESL-free perovskite solar cells (PSCs) attractive. However, the poor perovskite/substrate interface and inadequate quality of solution-processed perovskite thin films induce inefficient interfacial-charge extraction, limiting the power conversion efficiency (PCEs) of ESL-free PSCs. A highly compact and homogenous perovskite thin film with large grains was formed here by inserting an interfacial monolayer of diethanolamine (DEA) molecules between the perovskite and ITO substrate. In addition, the DEA created a favorable dipole layer at the interface of perovskite and ITO substrate by molecular adsorption, which suppressed charge recombination. Comparatively, PSCs based on DEA-treated ITO substrates delivered PCEs of up to 20.77%, one of the highest among ESL-free PSCs. Additionally, this technique successfully elongates the lifespan of ESL-free PSCs as 80% of the initial PCE was maintained after 550 h under AM 1.5 G irradiation at ambient temperature.
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Affiliation(s)
- Sajid Sajid
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Dong Wei
- College of Physics and Energy, Fujian Normal University, Fuzhou 350007, China
| | - Imen Ben Salem
- College of Natural and Health Sciences, Zayed University, Abu Dhabi P.O. Box 144534, United Arab Emirates
| | - Jongee Park
- Department of Metallurgical and Materials Engineering, Atilim University, Ankara 06836, Turkey
| | - Ihab M. Obaidat
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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Arbi HM, Yadav AA, Anil Kumar Y, Moniruzzaman M, Alzahmi S, Obaidat IM. Polypyrrole-Assisted Ag Doping Strategy to Boost Co(OH) 2 Nanosheets on Ni Foam as a Novel Electrode for High-Performance Hybrid Supercapacitors. Nanomaterials (Basel) 2022; 12:nano12223982. [PMID: 36432267 PMCID: PMC9697904 DOI: 10.3390/nano12223982] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2022] [Revised: 11/08/2022] [Accepted: 11/08/2022] [Indexed: 05/25/2023]
Abstract
Battery-type electrode materials have attracted much attention as efficient and unique types of materials for hybrid battery supercapacitors due to their multiple redox states and excellent electrical conductivity. Designing composites with high chemical and electrochemical stabilities is beneficial for improving the energy storage capability of battery-type electrode materials. We report on an interfacial engineering strategy to improve the energy storage performance of a Co(OH)2-based battery-type material by constructing polypyrrole-assisted and Ag-doped (Ag-doped@Co(OH)2@polypyrrole) nanosheets (NSs) on a Ni foam using a hydrothermal process that provides richer electroactive sites, efficient charge transportation, and an excellent mechanical stability. Physical characterization results revealed that the subsequent decoration of Ag nanoparticles on Co(OH)2 nanoparticles offered an efficient electrical conductivity as well as a reduced interface adsorption energy of OH- in Co(OH)2 nanoparticles as compared to Co(OH)2@polypyrrole-assisted nanoparticles without Ag particles. The heterogeneous interface of the Ag-doped@Co(OH)2@polypyrrole composite exhibited a high specific capacity of 291.2 mAh g-1 at a current density of 2 A g-1, and showed a good cycling stability after 5000 cycles at 5 A g-1. The specific capacity of the doped electrode was enhanced approximately two-fold compared to that of the pure electrode. Thus, the fabricated Ag-doped@Co(OH)2@polypyrrole nanostructured electrodes can be a potential candidate for fabricating low-cost and high-performance energy storage supercapacitor devices.
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Affiliation(s)
- Hammad Mueen Arbi
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Anuja A. Yadav
- Department of Automotive Engineering, Yeungnam University, 280 Daehak-ro, Gyeongsan 38541, Gyeongbuk, Korea
| | - Yedluri Anil Kumar
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Md Moniruzzaman
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si 13120, Gyeonggi-do, Korea
| | - Salem Alzahmi
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
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Sajid S, Alzahmi S, Salem IB, Obaidat IM. Perovskite-Surface-Confined Grain Growth for High-Performance Perovskite Solar Cells. Nanomaterials (Basel) 2022; 12:3352. [PMID: 36234480 PMCID: PMC9565253 DOI: 10.3390/nano12193352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2022] [Revised: 09/21/2022] [Accepted: 09/21/2022] [Indexed: 06/16/2023]
Abstract
The conventional post-annealing (CPA) process is frequently employed and regarded a crucial step for high-quality perovskite thin-films. However, most researchers end up with unwanted characteristics because controlling the evaporation rate of perovskite precursor solvents during heat treatment is difficult. Most perovskite thin-films result in rough surfaces with pinholes and small grains with multiple boundaries, if the evaporation of precursor solvents is not controlled in a timely manner, which negatively affects the performance of perovskite solar cells (PSCs). Here, we present a surface-confined post-annealing (SCPA) approach for controlling the evaporation of perovskite precursor solvents and promoting crystallinity, homogeneity, and surface morphology of the resulting perovskites. The SCPA method not only modulates the evaporation of residual solvents, resulting in pinhole-free thin-films with large grains and fewer grain boundaries, but it also reduces recombination sites and facilitates the transport of charges in the resulting perovskite thin-films. When the method is changed from CPA to SCPA, the power conversion efficiency of PSC improves from 18.94% to 21.59%. Furthermore, as compared to their CPA-based counterparts, SCPA-based PSCs have less hysteresis and increased long-term stability. The SCPA is a potentially universal method for improving the performance and stability of PSCs by modulating the quality of perovskite thin-films.
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Affiliation(s)
- Sajid Sajid
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Imen Ben Salem
- College of Natural and Health Sciences, Zayed University, Abu Dhabi P.O. Box 144534, United Arab Emirates
| | - Ihab M. Obaidat
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
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11
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Sajid S, Alzahmi S, Salem IB, Obaidat IM. Guidelines for Fabricating Highly Efficient Perovskite Solar Cells with Cu 2O as the Hole Transport Material. Nanomaterials (Basel) 2022; 12:nano12193315. [PMID: 36234442 PMCID: PMC9565295 DOI: 10.3390/nano12193315] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 09/20/2022] [Accepted: 09/20/2022] [Indexed: 05/14/2023]
Abstract
Organic hole transport materials (HTMs) have been frequently used to achieve high power conversion efficiencies (PCEs) in regular perovskite solar cells (PSCs). However, organic HTMs or their ingredients are costly and time-consuming to manufacture. Therefore, one of the hottest research topics in this area has been the quest for an efficient and economical inorganic HTM in PSCs. To promote efficient charge extraction and, hence, improve overall efficiency, it is crucial to look into the desirable properties of inorganic HTMs. In this context, a simulation investigation using a solar cell capacitance simulator (SCAPS) was carried out on the performance of regular PSCs using inorganic HTMs. Several inorganic HTMs, such as nickel oxide (NiO), cuprous oxide (Cu2O), copper iodide (CuI), and cuprous thiocyanate (CuSCN), were incorporated in PSCs to explore matching HTMs that could add to the improvement in PCE. The simulation results revealed that Cu2O stood out as the best alternative, with electron affinity, hole mobility, and acceptor density around 3.2 eV, 60 cm2V-1s-1, and 1018 cm-3, respectively. Additionally, the results showed that a back electrode with high work-function was required to establish a reduced barrier Ohmic and Schottky contact, which resulted in efficient charge collection. In the simulation findings, Cu2O-based PSCs with an efficiency of more than 25% under optimal conditions were identified as the best alternative for other counterparts. This research offers guidelines for constructing highly efficient PSCs with inorganic HTMs.
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Affiliation(s)
- Sajid Sajid
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence: (S.A.); (I.M.O.)
| | - Imen Ben Salem
- College of Natural and Health Sciences, Zayed University, Abu Dhabi P.O. Box 144534, United Arab Emirates
| | - Ihab M. Obaidat
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence: (S.A.); (I.M.O.)
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12
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Moniruzzaman M, Anil Kumar Y, Pallavolu MR, Arbi HM, Alzahmi S, Obaidat IM. Two-Dimensional Core-Shell Structure of Cobalt-Doped@MnO 2 Nanosheets Grown on Nickel Foam as a Binder-Free Battery-Type Electrode for Supercapacitor Application. Nanomaterials (Basel) 2022; 12:nano12183187. [PMID: 36144975 PMCID: PMC9505914 DOI: 10.3390/nano12183187] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Revised: 09/07/2022] [Accepted: 09/09/2022] [Indexed: 05/25/2023]
Abstract
Herein, we present an interfacial engineering strategy to construct an efficient hydrothermal approach by in situ growing cobalt-doped@MnO2 nanocomposite on highly conductive nickel foam (Ni foam) for supercapacitors (SCs). The remarkably high specific surface area of Co dopant provides a larger contacting area for MnO2. In the meantime, the excellent retentions of the hierarchical phase-based pore architecture of the cobalt-doped surface could beneficially condense the electron transportation pathways. In addition, the nickel foam (Ni foam) nanosheets provide charge-transport channels that lead to the outstanding improved electrochemical activities of cobalt-doped@MnO2. The unique cobalt-doped@MnO2 nanocomposite electrode facilitates stable electrochemical architecture, multi-active electrochemical sites, and rapid electro-transports channels; which act as a key factor in enhancing the specific capacitances, stability, and rate capacities. As a result, the cobalt-doped@MnO2 nanocomposite electrode delivered superior electrochemical activities with a specific capacitance of 337.8 F g-1 at 0.5 A g-1; this is greater than pristine MnO2 (277.9 F g-1). The results demonstrate a worthy approach for the designing of high-performance SCs by the grouping of the nanostructured dopant material and metal oxides.
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Affiliation(s)
- Md Moniruzzaman
- Department of Chemical and Biological Engineering, Gachon University, 1342 Seongnam-daero, Seongnam-si 13120, Gyeonggi-do, Korea
| | - Yedluri Anil Kumar
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | | | - Hammad Mueen Arbi
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Salem Alzahmi
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates
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13
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Kumar YA, Das HT, Guddeti PR, Nallapureddy RR, Pallavolu MR, Alzahmi S, Obaidat IM. Self-Supported Co3O4@Mo-Co3O4 Needle-like Nanosheet Heterostructured Architectures of Battery-Type Electrodes for High-Performance Asymmetric Supercapacitors. Nanomaterials 2022; 12:nano12142330. [PMID: 35889555 PMCID: PMC9324492 DOI: 10.3390/nano12142330] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/22/2022] [Revised: 06/30/2022] [Accepted: 07/04/2022] [Indexed: 12/27/2022]
Abstract
Herein, this report uses Co3O4 nanoneedles to decorate Mo-Co3O4 nanosheets over Ni foam, which were fabricated by the hydrothermal route, in order to create a supercapacitor material which is compared with its counterparts. The surface morphology of the developed material was investigated through scanning electron microscopy and the structural properties were evaluated using XRD. The charging storage activities of the electrode materials were evaluated mainly by cyclic voltammetry and galvanostatic charge-discharge investigations. In comparison to binary metal oxides, the specific capacities for the composite Co3O4@Mo-Co3O4 nanosheets and Co3O4 nano-needles were calculated to be 814, and 615 C g−1 at a current density of 1 A g−1, respectively. The electrode of the composite Co3O4@Mo-Co3O4 nanosheets displayed superior stability during 4000 cycles, with a capacity of around 90%. The asymmetric Co3O4@Mo-Co3O4//AC device achieved a maximum specific energy of 51.35 Wh Kg−1 and power density of 790 W kg−1. The Co3O4@Mo-Co3O4//AC device capacity decreased by only 12.1% after 4000 long GCD cycles, which is considerably higher than that of similar electrodes. All these results reveal that the Co3O4@Mo-Co3O4 nanocomposite is a very promising electrode material and a stabled supercapacitor.
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Affiliation(s)
- Yedluri Anil Kumar
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates;
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates;
| | - Himadri Tanaya Das
- Centre of Advanced Materials and Applications, Utkal University, Vanivihar, Bhubaneswar 751004, India;
| | | | | | - Mohan Reddy Pallavolu
- School of Chemical Engineering, Yeungnam University, Gyeongsan 38541, Korea;
- Correspondence: (M.R.P.); (I.M.O.)
| | - Salem Alzahmi
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates;
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates;
- National Water and Energy Center, United Arab Emirates University, Al Ain 15551, United Arab Emirates;
- Correspondence: (M.R.P.); (I.M.O.)
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Vinodh R, Babu RS, Sambasivam S, Gopi CVVM, Alzahmi S, Kim HJ, de Barros ALF, Obaidat IM. Recent Advancements of Polyaniline/Metal Organic Framework (PANI/MOF) Composite Electrodes for Supercapacitor Applications: A Critical Review. Nanomaterials 2022; 12:nano12091511. [PMID: 35564227 PMCID: PMC9105330 DOI: 10.3390/nano12091511] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/14/2022] [Revised: 04/26/2022] [Accepted: 04/26/2022] [Indexed: 12/29/2022]
Abstract
Supercapacitors (SCs), also known as ultracapacitors, should be one of the most promising contenders for meeting the needs of human viable growth owing to their advantages: for example, excellent capacitance and rate efficiency, extended durability, and cheap materials price. Supercapacitor research on electrode materials is significant because it plays a vital part in the performance of SCs. Polyaniline (PANI) is an exceptional candidate for energy-storage applications owing to its tunable structure, multiple oxidation/reduction reactions, cheap price, environmental stability, and ease of handling. With their exceptional morphology, suitable functional linkers, metal sites, and high specific surface area, metal–organic frameworks (MOFs) are outstanding materials for electrodes fabrication in electrochemical energy storage systems. The combination of PANI and MOF (PANI/MOF composites) as electrode materials demonstrates additional benefits, which are worthy of exploration. The positive impacts of the two various electrode materials can improve the resultant electrochemical performances. Recently, these kinds of conducting polymers with MOFs composites are predicted to become the next-generation electrode materials for the development of efficient and well-organized SCs. The recent achievements in the use of PANI/MOFs-based electrode materials for supercapacitor applications are critically reviewed in this paper. Furthermore, we discuss the existing issues with PANI/MOF composites and their analogues in the field of supercapacitor electrodes in addition to potential future improvements.
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Affiliation(s)
- Rajangam Vinodh
- Department of Electronics Engineering, Pusan National University, Busan 46241, Korea;
| | - Rajendran Suresh Babu
- Laboratory of Experimental and Applied Physics, Centro Federal de Educação Tecnológica Celso suckow da Fonesca, Av. Maracanã Campus 229, Rio de Janeiro 20271-110, Brazil; (R.S.B.); (A.L.F.d.B.)
| | - Sangaraju Sambasivam
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
| | - Chandu V. V. Muralee Gopi
- Department of Electrical Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates;
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence: (S.A.); (H.-J.K.); (I.M.O.)
| | - Hee-Je Kim
- Department of Electrical and Computer Engineering, Pusan National University, Busan 46241, Korea
- Correspondence: (S.A.); (H.-J.K.); (I.M.O.)
| | - Ana Lucia Ferreira de Barros
- Laboratory of Experimental and Applied Physics, Centro Federal de Educação Tecnológica Celso suckow da Fonesca, Av. Maracanã Campus 229, Rio de Janeiro 20271-110, Brazil; (R.S.B.); (A.L.F.d.B.)
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates;
- National Water and Energy Center, United Arab Emirates University, Al Ain P.O. Box 15551, United Arab Emirates
- Correspondence: (S.A.); (H.-J.K.); (I.M.O.)
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Narayanaswamy V, Al-Omari IA, Kamzin AS, Issa B, Obaidat IM. Tailoring Interfacial Exchange Anisotropy in Hard-Soft Core-Shell Ferrite Nanoparticles for Magnetic Hyperthermia Applications. Nanomaterials (Basel) 2022; 12:262. [PMID: 35055278 PMCID: PMC8781948 DOI: 10.3390/nano12020262] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/08/2021] [Revised: 01/11/2022] [Accepted: 01/12/2022] [Indexed: 12/30/2022]
Abstract
Magnetically hard-soft core-shell ferrite nanoparticles are synthesized using an organometallic decomposition method through seed-mediated growth. Two sets of core-shell nanoparticles (S1 and S2) with different shell (Fe3O4) thicknesses and similar core (CoFe2O4) sizes are obtained by varying the initial quantities of seed nanoparticles of size 6.0 ± 1.0 nm. The nanoparticles synthesized have average sizes of 9.5 ± 1.1 (S1) and 12.2 ± 1.7 (S2) nm with corresponding shell thicknesses of 3.5 and 6.1 nm. Magnetic properties are investigated under field-cooled and zero-field-cooled conditions at several temperatures and field cooling values. Magnetic heating efficiency for magnetic hyperthermia applications is investigated by measuring the specific absorption rate (SAR) in alternating magnetic fields at several field strengths and frequencies. The exchange bias is found to have a nonmonotonic and oscillatory relationship with temperature at all fields. SAR values of both core-shell samples are found to be considerably larger than that of the single-phase bare core particles. The effective anisotropy and SAR values are found to be larger in S2 than those in S1. However, the saturation magnetization displays the opposite behavior. These results are attributed to the occurrence of spin-glass regions at the core-shell interface of different amounts in the two samples. The novel outcome is that the interfacial exchange anisotropy of core-shell nanoparticles can be tailored to produce large effective magnetic anisotropy and thus large SAR values.
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Affiliation(s)
- Venkatesha Narayanaswamy
- Department of Medical Diagnostic Imaging, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | | | - Aleksandr S. Kamzin
- Laboratory of Ferroelectricity and Magnetism Physics, Ioffe Physical Technical Institute, 194021 St. Petersburg, Russia;
| | - Bashar Issa
- Department of Medical Diagnostic Imaging, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
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16
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Sambasivam S, Raghavendra KVG, Yedluri AK, Arbi HM, Narayanaswamy V, Gopi CVVM, Choi BC, Kim HJ, Alzahmi S, Obaidat IM. Facile Fabrication of MnCo 2O 4/NiO Flower-Like Nanostructure Composites with Improved Energy Storage Capacity for High-Performance Supercapacitors. Nanomaterials (Basel) 2021; 11:nano11061424. [PMID: 34071387 PMCID: PMC8227278 DOI: 10.3390/nano11061424] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Revised: 05/20/2021] [Accepted: 05/24/2021] [Indexed: 11/16/2022]
Abstract
Over the past few decades, the application of new novel materials in energy storage system has seen excellent development. We report a novel MnCo2O4/NiO nanostructure prepared by a simplistic chemical bath deposition method and employed it as a binder free electrode in the supercapacitor. The synergistic attraction from a high density of active sites, better transportation of ion diffusion and super-most electrical transportation, which deliver boost electrochemical activities. X-ray diffraction, field-emission scanning electron microscopy, and X-ray photoelectron spectroscopy have been used to investigate the crystallinity, morphology, and elemental composition of the as-synthesized precursors, respectively. Cyclic voltammetry, galvanostatic charge/discharge, and electron impedance spectroscopy have been employed to investigate the electrochemical properties. The unique nanoparticle structures delivered additional well-organized pathways for the swift mobility of electrons and ions. The as-prepared binder-free MnCo2O4/NiO nanocomposite electrode has a high specific capacity of 453.3 C g−1 at 1 Ag−1, and an excellent cycling reliability of 91.89 percent even after 4000 cycles, which are significantly higher than bare MnCo2O4 and NiO electrodes. Finally, these results disclose that the as-fabricated MnCo2O4/NiO electrode could be a favored-like electrode material holds substantial potential and supreme option for efficient supercapacitor and their energy storage-related applications.
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Affiliation(s)
- Sangaraju Sambasivam
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (S.S.); (H.M.A.); (V.N.)
| | - K. V. G. Raghavendra
- School of Electrical Engineering, Pusan National University, Busan 46241, Korea; (K.V.G.R.); (A.K.Y.); (H.-J.K.)
| | - Anil Kumar Yedluri
- School of Electrical Engineering, Pusan National University, Busan 46241, Korea; (K.V.G.R.); (A.K.Y.); (H.-J.K.)
| | - Hammad Mueen Arbi
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (S.S.); (H.M.A.); (V.N.)
| | - Venkatesha Narayanaswamy
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (S.S.); (H.M.A.); (V.N.)
| | - Chandu V. V. Muralee Gopi
- Department of Electrical Engineering, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates;
| | - Byung-Chun Choi
- Department of Physics, Pukyong National University, Busan 608737, Korea;
| | - Hee-Je Kim
- School of Electrical Engineering, Pusan National University, Busan 46241, Korea; (K.V.G.R.); (A.K.Y.); (H.-J.K.)
| | - Salem Alzahmi
- Department of Chemical & Petroleum Engineering, United Arab Emirates University, Al Ain 15551, United Arab Emirates;
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al Ain 15551, United Arab Emirates; (S.S.); (H.M.A.); (V.N.)
- Correspondence: ; Tel.: +971-03-7136321; Fax: +971-03-7136944
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17
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Narayanaswamy V, Al-Omari IA, Kamzin AS, Issa B, Tekin HO, Khourshid H, Kumar H, Mallya A, Sambasivam S, Obaidat IM. Specific Absorption Rate Dependency on the Co 2+ Distribution and Magnetic Properties in Co xMn 1-xFe 2O 4 Nanoparticles. Nanomaterials (Basel) 2021; 11:1231. [PMID: 34066997 PMCID: PMC8151351 DOI: 10.3390/nano11051231] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Revised: 05/01/2021] [Accepted: 05/02/2021] [Indexed: 11/16/2022]
Abstract
Mixed ferrite nanoparticles with compositions CoxMn1-xFe2O4 (x = 0, 0.2, 0.4, 0.6, 0.8, and 1.0) were synthesized by a simple chemical co-precipitation method. The structure and morphology of the nanoparticles were obtained by X-ray diffraction (XRD), transmission electron microscope (TEM), Raman spectroscopy, and Mössbauer spectroscopy. The average crystallite sizes decreased with increasing x, starting with 34.9 ± 0.6 nm for MnFe2O4 (x = 0) and ending with 15.0 ± 0.3 nm for CoFe2O4 (x = 1.0). TEM images show an edge morphology with the majority of the particles having cubic geometry and wide size distributions. The mixed ferrite and CoFe2O4 nanoparticles have an inverse spinel structure indicated by the splitting of A1g peak at around 620 cm-1 in Raman spectra. The intensity ratios of the A1g(1) and A1g(2) peaks indicate significant redistribution of Co2+ and Fe3+ cations among tetrahedral and octahedral sites in the mixed ferrite nanoparticles. Magnetic hysterics loops show that all the particles possess significant remnant magnetization and coercivity at room temperature. The mass-normalized saturation magnetization is highest for the composition with x = 0.8 (67.63 emu/g), while CoFe2O4 has a value of 65.19 emu/g. The nanoparticles were PEG (poly ethylene glycol) coated and examined for the magneto thermic heating ability using alternating magnetic field. Heating profiles with frequencies of 333.45, 349.20, 390.15, 491.10, 634.45, and 765.95 kHz and 200, 250, 300, and 350 G field amplitudes were obtained. The composition with x = 0.2 (Co0.2Mn0.8Fe2O4) with saturation magnetization 57.41 emu/g shows the highest specific absorption rate (SAR) value of 190.61 W/g for 10 mg/mL water dispersions at a frequency of 765.95 kHz and 350 G field strength. The SAR values for the mixed ferrite and CoFe2O4 nanoparticles increase with increasing concentration of particle dispersions, whereas for MnFe2O4, nanoparticles decrease with increasing the concentration of particle dispersions. SARs obtained for Co0.2Mn0.8Fe2O4 and CoFe2O4 nanoparticles fixed in agar ferrogel dispersions at frequency of 765.95 kHz and 350 G field strength are 140.35 and 67.60 W/g, respectively. This study shows the importance of optimizing the occupancy of Co2+ among tetrahedral and octahedral sites of the spinel system, concentration of the magnetic nanoparticle dispersions, and viscosity of the surrounding medium on the magnetic properties and heating efficiencies.
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Affiliation(s)
- Venkatesha Narayanaswamy
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates; (V.N.); (S.S.)
| | - Imaddin A. Al-Omari
- Department of Physics, Sultan Qaboos University, P.O. Box 36, Muscat PC 123, Oman;
| | | | - Bashar Issa
- Department of Medical Diagnostic Imaging, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; (B.I.); (H.O.T.)
| | - Huseyin O. Tekin
- Department of Medical Diagnostic Imaging, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates; (B.I.); (H.O.T.)
| | - Hafsa Khourshid
- Department of Physics, College of Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Hemant Kumar
- Materials Engineering, Indian Institute of Science, Bangalore 560012, India; (H.K.); (A.M.)
| | - Ambresh Mallya
- Materials Engineering, Indian Institute of Science, Bangalore 560012, India; (H.K.); (A.M.)
| | - Sangaraju Sambasivam
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates; (V.N.); (S.S.)
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates; (V.N.); (S.S.)
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Narayanaswamy V, Sambasivam S, Saj A, Alaabed S, Issa B, Al-Omari IA, Obaidat IM. Role of Magnetite Nanoparticles Size and Concentration on Hyperthermia under Various Field Frequencies and Strengths. Molecules 2021; 26:796. [PMID: 33557107 PMCID: PMC7913832 DOI: 10.3390/molecules26040796] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2020] [Revised: 01/22/2021] [Accepted: 01/25/2021] [Indexed: 11/18/2022] Open
Abstract
Magnetite (Fe3O4) nanoparticles were synthesized using the chemical coprecipitation method. Several nanoparticle samples were synthesized by varying the concentration of iron salt precursors in the solution for the synthesis. Two batches of nanoparticles with average sizes of 10.2 nm and 12.2 nm with nearly similar particle-size distributions were investigated. The average particle sizes were determined from the XRD patterns and TEM images. For each batch, several samples with different particle concentrations were prepared. Morphological analysis of the samples was performed using TEM. The phase and structure of the particles of each batch were studied using XRD, selected area electron diffraction (SAED), Raman and XPS spectroscopy. Magnetic hysteresis loops were obtained using a Lakeshore vibrating sample magnetometer (VSM) at room temperature. In the two batches, the particles were found to be of the same pure crystalline phase of magnetite. The effects of particle size, size distribution, and concentration on the magnetic properties and magneto thermic efficiency were investigated. Heating profiles, under an alternating magnetic field, were obtained for the two batches of nanoparticles with frequencies 765.85, 634.45, 491.10, 390.25, 349.20, 306.65, and 166.00 kHz and field amplitudes of 100, 200, 250, 300 and 350 G. The specific absorption rate (SAR) values for the particles of size 12.2 nm are higher than those for the particles of size 10.2 nm at all concentrations and field parameters. SAR decreases with the increase of particle concentration. SAR obtained for all the particle concentrations of the two batches increases almost linearly with the field frequency (at fixed field strength) and nonlinearly with the field amplitude (at fixed field frequency). SAR value obtained for magnetite nanoparticles with the highest magnetization is 145.84 W/g at 765.85 kHz and 350 G, whereas the SAR value of the particles with the least magnetization is 81.67 W/g at the same field and frequency.
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Affiliation(s)
| | - Sangaraju Sambasivam
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates; (S.S.); (A.S.)
| | - Alam Saj
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates; (S.S.); (A.S.)
| | - Sulaiman Alaabed
- Department of Geology, United Arab Emirates University, Al-Ain 15551, United Arab Emirates;
| | - Bashar Issa
- Department of Medical Diagnostic Imaging, College of Health Sciences, University of Sharjah, Sharjah 27272, United Arab Emirates;
| | - Imaddin A. Al-Omari
- Department of Physics, Sultan Qaboos University, P.O. Box 36, Muscat PC 123, Oman;
| | - Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates; (S.S.); (A.S.)
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Sambasivam S, Muralee Gopi CV, Maram PS, Arbi HM, Narayanaswamy V, Kamzin AS, Obaidat IM. Investigation of optical and magnetic properties of Mn-doped tetragonal ZrO2 nanocrystals. J SOLID STATE CHEM 2021. [DOI: 10.1016/j.jssc.2020.121872] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Sambasivam S, Kumar YA, Gopi CVM, Narayanaswamy V, Obaidat IM. Influence of temperature on the magnetic properties of Mn3O4 nanowires. 10 5267/j ccl 2021. [DOI: 10.5267/j.ccl.2021.1.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Single crystalline Mn3O4 nanowires have been synthesized with tetragonal hausmannite structure using a solvothermal method. The structural and morphological evolution of Mn3O4 nanowires have been characterized using powder X-ray diffraction, transmission electron microscopy, and electron resonance spectroscopy. The nanowires were grown uniformly along the (200) direction with a diameter of 5–10 nm range. A relatively broad and intense electron spin resonance (ESR) signal was observed at room temperature, with the g ≈ 2.0. As the synthesis temperature increases from 150 to 250 °C, a decrease in ESR signal intensity and line widths were observed. Mn3O4 displayed a positive Curie-Weiss temperature, θ, which decreases with the increase of synthesis temperature.
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Narayanaswamy V, Alaabed S, Issa B, AL-Akhras MA, Obaidat IM. Molecular simulation of curcumin loading on graphene and graphene oxide for drug delivery applications. 10 5267/j ccl 2021. [DOI: 10.5267/j.ccl.2020.12.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Curcumin loading capacity of polyethylene glycol (PEG) functionalized graphene and graphene oxides are investigated using molecular dynamics and Monte Carlo (MC) adsorption locator simulations. These simulation methods were performed as a function of oxidation extent to study the effect of functional groups on curcumin loading and release properties. Adsorption locator energy calculations suggest that the curcumin drug molecule prefers to adsorb at the less oxidized sites of graphene oxide. One of the phenolic rings of curcumin drug prefers to have a planar interaction with graphene and graphene oxide framework due to the pi-pi interaction. Molecular dynamic studies are conducted in aqueous medium under neutral pH. Mean square displacement and radial distribution functions are obtained to determine the nature of the curcumin attachment and release in aqueous medium. The molecular simulations show that separation distance of the curcumin molecule from GO sheet is 4.4 Å. The molecular simulations presented in this work will help to design new synthetic methods of nanocarriers for curcumin delivery applications.
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Anil Kumar Y, Sambasivam S, Ahmed Hira S, Zeb K, Uddin W, Krishna T, Dasha Kumar K, Obaidat IM, Kim HJ. Boosting the energy density of highly efficient flexible hybrid supercapacitors via selective integration of hierarchical nanostructured energy materials. Electrochim Acta 2020. [DOI: 10.1016/j.electacta.2020.137318] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022]
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Sambasivam S, V V Muralee Gopi C, Kim HJ, Obaidat IM. Improved light-harvesting and suppressed charge recombination by introduction of a nanograss-like SnO 2 interlayer for efficient CdS quantum dot sensitized solar cells. RSC Adv 2019; 9:38047-38054. [PMID: 35541786 PMCID: PMC9075735 DOI: 10.1039/c9ra08234d] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 11/15/2019] [Indexed: 11/21/2022] Open
Abstract
Quantum dot sensitized solar cell (QDSSC) performance is primarily limited by the recombination of charges at the interfaces of TiO2/quantum dot (QD) sensitizer/electrolyte. Hence, blocking or suppressing the charge recombination is an essential requirement to elevate the QDSSC performance to the next level. To retard the charge recombination, herein, we propose the introduction of a SnO2 nanograss (NG) interlayer on the surface of TiO2 using the facile chemical bath deposition method. The SnO2 NG interlayer not only inhibits the interfacial recombination processes in QDSSCs but also enhances the light-harvesting capability in generating more excitons. Hence, the TiO2/SnO2 NG/CdS QDSSCs can achieve the power conversion efficiency of 3.15%, which is superior to that of a TiO2/CdS device (2.16%). Electrochemical impedance spectroscopy, open-circuit voltage decay and dark current analyses confirm that the recombination of charges at the photoanode/electrolyte interface is suppressed and the life time is improved by introducing the SnO2 NG interlayer between the TiO2 and CdS QD sensitizer.
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Affiliation(s)
- Sangaraju Sambasivam
- Department of Physics, United Arab Emirates University Al-Ain 15551 United Arab Emirates
| | - Chandu V V Muralee Gopi
- Department of Electrical Engineering, Pusan National University Geumjeong-gu Busan South Korea-46241
| | - Hee-Je Kim
- Department of Electrical Engineering, Pusan National University Geumjeong-gu Busan South Korea-46241
| | - Ihab M Obaidat
- Department of Physics, United Arab Emirates University Al-Ain 15551 United Arab Emirates
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Narayanaswamy V, Obaidat IM, Kamzin AS, Latiyan S, Jain S, Kumar H, Srivastava C, Alaabed S, Issa B. Synthesis of Graphene Oxide-Fe 3O 4 Based Nanocomposites Using the Mechanochemical Method and in Vitro Magnetic Hyperthermia. Int J Mol Sci 2019; 20:E3368. [PMID: 31323967 PMCID: PMC6650873 DOI: 10.3390/ijms20133368] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2019] [Revised: 07/01/2019] [Accepted: 07/02/2019] [Indexed: 01/13/2023] Open
Abstract
The study presented in this work consists of two parts: The first part is the synthesis of Graphene oxide-Fe3O4 nanocomposites by a mechanochemical method which, is a mechanical process that is likely to yield extremely heterogeneous particles. The second part includes a study on the efficacy of these Graphene oxide-Fe3O4 nanocomposites to kill cancerous cells. Iron powder, ball milled along with graphene oxide in a toluene medium, underwent a controlled oxidation process. Different phases of GO-Fe3O4 nanocomposites were obtained based on the composition used for milling. As synthesized nanocomposites were characterized by x-ray diffraction (XRD), alternating magnetic field (AFM), Raman spectroscopy, and a vibrating sample magnetometer (VSM). Additionally, the magnetic properties required to obtain high SAR values (Specific Absorption Rate-Power absorbed per unit mass of the magnetic nanocomposite in the presence of an applied magnetic field) for the composite were optimized by varying the milling time. Nanocomposites milled for different extents of time have shown differential behavior for magneto thermic heating. The magnetic composites synthesized by the ball milled method were able to retain the functional groups of graphene oxide. The efficacy of the magnetic nanocomposites for killing of cancerous cells is studied in vitro using HeLa cells in the presence of an AC (Alternating Current) magnetic field. The morphology of the HeLa cells subjected to 10 min of AC magnetic field changed considerably, indicating the death of the cells.
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Affiliation(s)
| | - Ihab M Obaidat
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates.
| | | | - Sachin Latiyan
- Center for Biosystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Shilpee Jain
- Center for Biosystems Science and Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Hemant Kumar
- Materials Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Chandan Srivastava
- Materials Engineering, Indian Institute of Science, Bangalore 560012, India
| | - Sulaiman Alaabed
- Department of Geology, United Arab Emirates University, Al-Ain 15551, United Arab Emirates
| | - Bashar Issa
- Department of Medical Diagnostic Imaging, College of Health Sciences, University of Sharjah, Sharjah P.O. Box 27272, United Arab Emirates
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Obaidat IM, Nayek C, Manna K, Bhattacharjee G, Al-Omari IA, Gismelseed A. Investigating Exchange Bias and Coercivity in Fe₃O₄-γ-Fe₂O₃ Core-Shell Nanoparticles of Fixed Core Diameter and Variable Shell Thicknesses. Nanomaterials (Basel) 2017; 7:E415. [PMID: 29186824 PMCID: PMC5746905 DOI: 10.3390/nano7120415] [Citation(s) in RCA: 31] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/15/2017] [Revised: 11/22/2017] [Accepted: 11/23/2017] [Indexed: 11/17/2022]
Abstract
We have carried out extensive measurements on novel Fe₃O₄-γ-Fe₂O₃ core-shell nanoparticles of nearly similar core diameter (8 nm) and of various shell thicknesses of 1 nm (sample S1), 3 nm (sample S2), and 5 nm (sample S3). The structure and morphology of the samples were studied using X-ray diffraction (XRD), transmission electron microscopy (TEM), and selected area electron diffraction (SAED). The direct current (DC) magnetic measurements were carried out using a superconducting quantum interference device (SQUID). Exchange bias and coercivity were investigated at several temperatures where the applied field was varied between 3 and -3 T. Several key results are obtained, such as: (a) the complete absence of exchange bias effect in sample S3; (b) the occurrence of nonconventional exchange bias effect in samples S2 and S1; (c) the sign-change of exchange bias field in sample S2; (d) the monotonic increase of coercivity with temperature above 100 K in all samples; (e) the existence of a critical temperature (100 K) at which the coercivity is minimum; (f) the surprising suppression of coercivity upon field-cooling; and (g) the observation of coercivity at all temperatures, even at 300 K. The results are discussed and attributed to the existence of spin glass clusters at the core-shell interface.
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Affiliation(s)
- Ihab M. Obaidat
- Department of Physics, United Arab Emirates University, Al-Ain 15551, UAE;
| | - Chiranjib Nayek
- Department of Physics, United Arab Emirates University, Al-Ain 15551, UAE;
| | - Kaustuv Manna
- Max-Planck-Institute for Chemical Physics of Solids, Nöthnitzer Straße-40, 01187 Dresden, Germany;
| | - Gourab Bhattacharjee
- Surface Physics and Material Science Division, Saha Institute of Nuclear Physics, HBNI, 1/AF Bidhannagar, Kolkata 700064, India;
| | - Imaddin A. Al-Omari
- Department of Physics, Sultan Qaboos University, P.O. Box 36, Muscat PC 123, Sultanate of Oman; (I.A.A.-O.); (A.G.)
| | - Abbasher Gismelseed
- Department of Physics, Sultan Qaboos University, P.O. Box 36, Muscat PC 123, Sultanate of Oman; (I.A.A.-O.); (A.G.)
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Obaidat IM, Issa B, Haik Y. Magnetic Properties of Magnetic Nanoparticles for Efficient Hyperthermia. Nanomaterials (Basel) 2015; 5:63-89. [PMID: 28347000 PMCID: PMC5312856 DOI: 10.3390/nano5010063] [Citation(s) in RCA: 186] [Impact Index Per Article: 20.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Received: 11/15/2014] [Accepted: 12/30/2014] [Indexed: 11/16/2022]
Abstract
Localized magnetic hyperthermia using magnetic nanoparticles (MNPs) under the application of small magnetic fields is a promising tool for treating small or deep-seated tumors. For this method to be applicable, the amount of MNPs used should be minimized. Hence, it is essential to enhance the power dissipation or heating efficiency of MNPs. Several factors influence the heating efficiency of MNPs, such as the amplitude and frequency of the applied magnetic field and the structural and magnetic properties of MNPs. We discuss some of the physics principles for effective heating of MNPs focusing on the role of surface anisotropy, interface exchange anisotropy and dipolar interactions. Basic magnetic properties of MNPs such as their superparamagnetic behavior, are briefly reviewed. The influence of temperature on anisotropy and magnetization of MNPs is discussed. Recent development in self-regulated hyperthermia is briefly discussed. Some physical and practical limitations of using MNPs in magnetic hyperthermia are also briefly discussed.
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Affiliation(s)
- Ihab M Obaidat
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates.
| | - Bashar Issa
- Department of Physics, United Arab Emirates University, Al-Ain 15551, United Arab Emirates.
| | - Yousef Haik
- Department of Mechanical Engineering, United Arab Emirates University, Al-Ain 15555, United Arab Emirates.
- Center for Research Excellence in Nanobiosciences, University of North Carolina at Greensboro, Greensboro, NC 27412, USA.
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Issa B, Obaidat IM, Albiss BA, Haik Y. Magnetic nanoparticles: surface effects and properties related to biomedicine applications. Int J Mol Sci 2013; 14:21266-305. [PMID: 24232575 PMCID: PMC3856004 DOI: 10.3390/ijms141121266] [Citation(s) in RCA: 322] [Impact Index Per Article: 29.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/02/2013] [Revised: 10/10/2013] [Accepted: 10/11/2013] [Indexed: 11/16/2022] Open
Abstract
Due to finite size effects, such as the high surface-to-volume ratio and different crystal structures, magnetic nanoparticles are found to exhibit interesting and considerably different magnetic properties than those found in their corresponding bulk materials. These nanoparticles can be synthesized in several ways (e.g., chemical and physical) with controllable sizes enabling their comparison to biological organisms from cells (10–100 μm), viruses, genes, down to proteins (3–50 nm). The optimization of the nanoparticles’ size, size distribution, agglomeration, coating, and shapes along with their unique magnetic properties prompted the application of nanoparticles of this type in diverse fields. Biomedicine is one of these fields where intensive research is currently being conducted. In this review, we will discuss the magnetic properties of nanoparticles which are directly related to their applications in biomedicine. We will focus mainly on surface effects and ferrite nanoparticles, and on one diagnostic application of magnetic nanoparticles as magnetic resonance imaging contrast agents.
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Affiliation(s)
- Bashar Issa
- Department of Physics, College of Science, United Arab Emirates University, Al Ain, 15551, UAE; E-Mail:
- Author to whom correspondence should be addressed; E-Mail: ; Tel.: +971-3-713-6316; Fax: +971-3-713-6944
| | - Ihab M. Obaidat
- Department of Physics, College of Science, United Arab Emirates University, Al Ain, 15551, UAE; E-Mail:
| | - Borhan A. Albiss
- Superconductivity & Magnetic Measurements Laboratory, Physics Department, Jordan University of Science and Technology, Irbid 22110, Jordan; E-Mail:
| | - Yousef Haik
- Department of Mechanical Engineering, College of Engineering, United Arab Emirates University, Al Ain, 15551, UAE; E-Mail:
- Centre of Research Excellence in Nanobioscience 203, Eberhart Building University of North Carolina, Greensboro, NC 27412, USA
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Issa B, Obaidat IM, Hejasee RH, Qadri S, Haik Y. NMR relaxation in systems with magnetic nanoparticles: a temperature study. J Magn Reson Imaging 2013; 39:648-55. [PMID: 23720101 DOI: 10.1002/jmri.24197] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2012] [Accepted: 04/05/2013] [Indexed: 11/08/2022] Open
Abstract
PURPOSE To measure and model nuclear magnetic resonance (NMR) relaxation enhancement due to the presence of gadolinium (Gd)-substituted Zn-Mn ferrite magnetic nanoparticles (MNP) at different temperatures. MATERIALS AND METHODS Relaxation rates were measured at 1.5 T using fast spin echo (FSE) sequences in samples of agarose gel doped with uncoated and polyethylene glycol (PEG)-coated Mn0.5 Zn0.5 Gd0.02 Fe1.98 O4 nanoparticles over the temperature range 8-58°C. Physical characterization of the MNPs synthesized using chemical coprecipitation included scanning (SEM) and transmission (TEM) electron microscopy, inductively coupled plasma (ICP), dynamic light scattering (DLS), and magnetometry. RESULTS Relaxivity (in s(-1) mM(-1) Fe) for the uncoated and coated particles, respectively, increased as follows: from 2.5 to 3.2 and 0.4 to 0.7 for T1, while for T2 it increased from 162.3 to 253.7 and 59.7 to 82.2 over the temperature range 8-58°C. T2 data were fitted to the echo limited motional regime using one fitting parameter that reflects the degree of agglomeration of particles into a cluster. This parameter was found to increase linearly with temperature and was larger for the PEG-coated particles than the uncoated ones. CONCLUSION The increase of 1/T2 with temperature is modeled successfully using echo limited motional regime where both diffusion of the protons and nanoparticle cluster size increase with temperature. Both transverse and longitudinal relaxation efficiencies are reduced by PEG coating at all temperatures. If prediction of relaxation rates under different particle concentrations and operating temperatures is possible then the use of MNP in temperature monitoring and hyperthermia applications may be achieved.
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Affiliation(s)
- Bashar Issa
- Department of Physics, College of Sciences, United Arab Emirates University, Al Ain, UAE; Centre of Research Excellence in Nanobioscience 203, University of North Carolina, Greensboro North Carolina, USA
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Issa B, Qadri S, Obaidat IM, Bowtell RW, Haik Y. PEG coating reduces NMR relaxivity of Mn(0.5)Zn(0.5)Gd(0.02)Fe(1.98)O4 hyperthermia nanoparticles. J Magn Reson Imaging 2011; 34:1192-8. [PMID: 21928382 DOI: 10.1002/jmri.22703] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2011] [Accepted: 06/01/2011] [Indexed: 11/11/2022] Open
Abstract
PURPOSE To investigate both T1 and T2 MR relaxation enhancement of Gd substituted Zn-Mn ferrite magnetic nanoparticles. Both uncoated and polyethylene glycol (PEG) coated particles were used. MATERIALS AND METHODS Chemical co-precipitation was used to synthesize particles in the form Mn(0.5)Zn(0.5)Gd(0.2)Fe(1.98)O(4) suitable for hyperthermia applications. Physical characterization of the magnetic nanoparticles included SEM, TEM, ICP, and SQUID. T1 and T2 measurements were performed at 1.5 Tesla (T). RESULTS The saturation magnetization was 12.86 emu/g while the particle's magnetic moment was 1.86 × 10(-19) J/T. The particle size increased due to coating, while 1/T1 and 1/T2 relaxivities (26°C) decreased from 2.5 to 0.7 and from 201.3 to 76.6 s(-1) mM(-1), respectively, at a magnetic field 1.5T. CONCLUSION The reduction in both 1/T1 and 1/T2 is attributed to increased distance of closest approach between the protons and the magnetic core caused by the shielding provided by the high molecular weight PEG. 1/T2 data are compared with existing theoretical models using a modified radius that takes into account both possible agglomeration of the particles and increased inter-particle separation induced by PEG coating.
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Affiliation(s)
- Bashar Issa
- Department of Physics, College of Sciences, United Arab Emirates University, Al Ain, UAE.
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Obaidat IM, Issa B, Haik Y. The role of aggregation of ferrite nanoparticles on their magnetic properties. J Nanosci Nanotechnol 2011; 11:3882-3888. [PMID: 21780381 DOI: 10.1166/jnn.2011.3833] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
We have studied the magnetic properties of aggregates of Mn0.5Zn0.5Gd(x)Fe(2-x)O4 ferrite nanoparticles, with x = 0.01, 0.02, 0.03, 0.04, 0.05, 0.06, 0.07, 0.08, 0.09, 0.10, 0.11, 0.12, 0.13, 0.14, 0.15, 0.16, 0.18, 0.20. The scanning electron microscopy micrographs show significant aggregation of the nanoparticles in all samples. Zero field cooled and field cooled magnetization measurements were conducted on all samples from 400 K down to 5 K. Most zero field cooled curves were found to exhibit the usual behavior but with wide peaked regions. For some x values, the field cooled magnetization was found to increase slowly with decreasing temperature, and becomes nearly constant at low temperatures. The measurements of magnetization versus applied magnetic field were conducted on all samples at 5 K and 305 K in the field range from -15000 to 15000 Oe. At 305 K the magnetization for all samples was observed to saturate, while at 5 K the magnetization did not reach saturation for some values of x. The saturation magnetization values were suggested to be proportional to the size of particles. These results were discussed and suggested to be due to the inter-particle dipolar and exchange interactions between the particles in the aggregates, the large particle size distribution and the surface magnetization effects.
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Affiliation(s)
- I M Obaidat
- Department of Physics, United Arab Emirates University, Al-Ain 17551, United Arab Emirates
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Abstract
We present an investigation into the existence and origins of bandgap bowing in compound-semiconductor common-cation ternary alloys. As examples, we consider CdSe(x)Te(1-x) and ZnSe(1-x)Te(x) alloys. A calculation, based on the sp(3)s(*) tight-binding method including spin-orbit coupling within the framework of the virtual crystal approximation, is employed to determine the bandgap energy, local density of states and atomic charge states versus composition and valence-band offset. The results show that (i) in the valence band, the top states are mainly contributed by Te atoms. The degree of ionicity of all atoms is found to vary linearly with mole fraction x. (ii) There is a strong competition between the anions (Se and Te) in trapping/losing charges and this competition is the main reason for the bandgap bowing character. (iii) There is a reasonable agreement between the calculated results and the available photoluminescence data. (iv) The bowing parameter is found to increase with increasing valence-band offset and increasing lattice mismatch.
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Affiliation(s)
- Nacir Tit
- Department of Physics, UAE University, PO Box 17551, Al-Ain, United Arab Emirates
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Obeidat WM, Obaidat IM. Effect of the dispersion of Eudragit S100 powder on the properties of cellulose acetate butyrate microspheres containing theophylline made by the emulsion-solvent evaporation method. J Microencapsul 2008; 24:263-73. [PMID: 17454437 DOI: 10.1080/02652040701233648] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
Abstract
The dispersion/incorporation of Eudragit S100 powder as a filler in cellulose acetate butyrate (CAB-551-0.01) microsphere containing theophylline was investigated as a means of controlling drug release. Microspheres of CAB-551-0.01 of different polymer solution concentrations/viscosities were prepared (preparations Z(0), Z(A), Z(B) and Z(C)) and evaluated and compared to microspheres of a constant concentration of CAB-551-0.01 containing different amounts of Eudragit S100 powder as a filler (preparations X(A), X(B) and X(C)). The organic solvent acetonitrile used was capable of dissolving the matrix former CAB-551-0.01 only but not Eudragit S100 powder in the emulsion-solvent evaporation method. The CAB-551-0.01 concentration in Z(A), Z(B) and Z(C) was equal to the total polymer concentration (CAB-551-0.01 and Eudragit S100 powder) in X(A), X(B) and X(C), respectively. Scanning electron microscopy (SEM) was used to identify microspheres shape and morphology. In vitro dissolution studies were carried out on the microspheres at 37 degrees C (+/-0.5 degrees C) at two successive different pH media (1.2 +/- 0.2 for 2 h and 6.5 +/- 0.2 for 10 h). Z preparations exhibited low rates of drug release in the acidic and the slightly neutral media. On the other hand, X preparations showed an initial rapid release in the acidic medium followed by a decrease in the release rate at the early stage of dissolution in the slightly neutral pH which could be due to some relaxation and gelation of Eudragit S100 powder to form a gel network before it dissolves completely allowing the remained drug to be released.
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Affiliation(s)
- Wasfy M Obeidat
- Jordan University of Science and Technology, PO Box 3030, Irbid 22110, Jordan.
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