Ali Asghar Sadeghi Ghazvini

Ali Asghar Sadeghi Ghazvini
Tarbiat Modares University | TMU · Department of Materials Engineering

PhD

About

17
Publications
946
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96
Citations

Publications

Publications (17)
Article
Electrophoretic Deposition (EPD) is one of the alternative methods to fabricate and enhance the performance of Li-ion batteries. It enables the fabrication of electrodes with outstanding qualities and different electrochemical properties by the great domination over various parameters. EPD facilitates the processing of electrodes by binder-free gra...
Article
Full-text available
To date, there is an enormous experimental research focus on discovering the usage of carbon materials as Lithium-ion battery (LIB) anode active materials, though there is a limited number of scientific articles exploring the links between the properties of these materials and their lithium storage performance. The goal of this study is to find the...
Article
Herein, we present a new model to investigate the cause of the low initial coulombic efficiency of lithium-ion battery (LIB) porous carbon anodes and discover its relationship with the porosity of these materials. According to the proposed model, the capacity of porous carbon LIB anodes is in a direct relationship with their porosity, which reduces...
Article
In this paper, the variation of suspension stability under the electric field was studied. Ceramic suspensions such as YSZ/acetyl acetone, YSZ/1propanol, and SnO2/ethanol were analyzed by applying different voltages. The novel turbidimetry technique was employed to illustrate the stability changes versus electrophoretic deposition (EPD) time. Macro...
Article
Full-text available
Herein, activated carbon (AC) is composited with multiple weight ratios of graphene nanoplates through a facile and scalable technique, including sonicating and vacuum mixing in a slurry to fabricate pouch cell electric double‐layer capacitors (EDLCs). Among the fabricated devices, the EDLC made of 2 wt% graphene/AC composite demonstrated the best...
Article
Full-text available
Despite the large number of experimental works divulging the use of carbonaceous materials in LIB anodes, there are very few reports modeling the relationships between the characteristics of the electrode active materials and their lithium storage capacity. In this work, it is aimed to model the influence of the size and shape of carbon nano-sphere...
Article
Electrochemical capacitors, also called supercapacitors (SCs), have been gaining a more significant position as electrochemical energy storage devices in recent years. They are energy storage devices with a considerable power density, a satisfactory energy density and a long-life cycle, suitable for a large number of applications. The further devel...
Article
The high level of lithium storage in synthetic porous carbons has necessitated the development of accurate models for estimating the specific capacity of carbon-based lithium-ion battery (LIB) anodes. To date, various models have been developed to estimate the storage capacity of lithium in carbonaceous materials. However, these models are complex...
Article
In this work, we used the electrophoretic deposition (EPD) technique for the fabrication of Co3O4-Graphene nano-composite as the binder-free electrode for electrochemical supercapacitors. Cobalt nitrate salt was used as the charging agent for EPD of graphene, Co3O4, and their co-deposition. Characterization of the obtained layer by optical microsco...
Preprint
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Graphite and carbonaceous parts are being extensively employed in industrial and high-tech fields. Since these materials suffer from severe oxidation at elevated temperatures, it is vital to keep them safe from being damaged and corroded at high-temperature working conditions. In this study, a double-layer coating was prepared to achieve this aim....
Article
In the present study, highly viscous alcoholic media, pentanol, hexanol and heptanol were used for electrophoretic deposition of ceramic (TiO2) nanoparticles as a new approach in the EPD process. Optical and scanning electron microscopy of the obtained deposits at 50 V revealed that layers with a fairly uniform microstructure were obtained in penta...
Article
In this research, co-depositions of cobalt oxide nanopowders (NPs) and graphene (G) nanoplates in the acetone medium in presence of polyethylenimine (PEI) as a charging agent was investigated. Scanning electron microscopy (SEM) results confirmed the uniformity and nanostructures of obtained layers from all three suspensions containing 4 g/l Co3O4-G...
Article
In the present study, highly viscous alcoholic media, pentanol, hexanol and heptanol were used for electrophoretic deposition of ceramic (TiO2) nanoparticles as a new approach in the EPD process. Optical and scanning electron microscopy of the obtained deposits at 50 V revealed that layers with a fairly uniform microstructure were obtained in penta...
Article
Abstract In the present study, electrophoretic deposition (EPD) was used to obtain dense layers of TiO¬2 in four organic media, methaol, ethanol, 1-propanol and butanol with different TiO2 nanoparticles concenteration of 1-8 (g/lit). Microstructural study of the obtained layers by scanning electron (SEM) and optical microscope (OM) revealed that th...

Questions

Question (1)
Question
Most papers have used 1 M of TEABF4 in acetonitrile to build a high voltage supercapacitor. However, the maximum solubility of TEABF4 in acetonitrile is about 0.5 M. Is there a solution to increase the solubility of TEABF4 in acetonitrile?

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Projects (2)