Browsing by Author "Rahul Kanaoujiya"

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A Comprehensive Review of Novel Emerging Electrolytes for Supercapacitors: Aqueous and Organic Electrolytes Versus Ionic Liquid-Based Electrolytes
(American Chemical Society, 2024) Moumita Saha; Ambrish Kumar; Rahul Kanaoujiya; Kamalakanta Behera; Shruti Trivedi
Storage of energy is essential to meet the daily demand for powering portable devices. This necessitates the development of storage systems such as supercapacitors (SCs), batteries, and solar cells. SCs have garnered a lot of attention for their ability to provide a massive amount of power. Nevertheless, traditional mechanisms fall short of our expectations. Ionic liquids (ILs), the evolutionary green designer solvents, are efficient enough to substitute for conventional electrolytes such as aqueous or organic electrolytes in SCs. A limited potential window of aqueous electrolytes restricts the performance of high energy electrodes. In contrast, organic electrolytes with high volatility, flammability, and lack of tunability are not suitable for long-term and robust applications. Beneficial properties of ILs such as negligible volatility, high thermal, chemical, and electrochemical stability have overcome many restrictions in SCs and improved their overall performances. ILs can be used as standalone electrolyte or can be mixed with organic electrolytes, redox elements, and polymers to obtain electrolytes for SCs. The structure of anions and cations has been found to significantly influence overall electrochemical performances. ILs benefit SCs with a wider working voltage, temperature range, and better energy density. ILs have been utilized not only as electrolytes but also in the synthesis of electrode materials. Consequently, it is essential to discuss recent findings and the function of ILs in achieving higher-performing SCs. This review mainly highlights the most recent findings on the use of ILs-based electrolytes and electrodes in supercapacitors. © 2024 American Chemical Society
Ionic liquids: environmentally sustainable materials for energy conversion and storage applications
(Springer, 2024) Gaurav Choudhary; Jyoti Dhariwal; Moumita Saha; Shruti Trivedi; Manoj K. Banjare; Rahul Kanaoujiya; Kamalakanta Behera
Ionic liquids (ILs), often known as green designer solvents, have demonstrated immense application potential in numerous scientific and technological domains. ILs possess high boiling point and low volatility that make them suitable environmentally benign candidates for many potential applications. The more important aspect associated with ILs is that their physicochemical properties can be effectively changed for desired applications just by tuning the structure of the cationic and/or anionic part of ILs. Furthermore, these eco-friendly designer materials can function as electrolytes or solvents depending on the application. Owing to the distinctive properties such as low volatility, high thermal and electrochemical stability, and better ionic conductivity, ILs are nowadays immensely used in a variety of energy applications, particularly in the development of green and sustainable energy storage and conversion devices. Suitable ILs are designed for specific purposes to be used as electrolytes and/or solvents for fuel cells, lithium-ion batteries, supercapacitors (SCs), and solar cells. Herein, we have highlighted the utilization of ILs as unique green designer materials in Li-batteries, fuel cells, SCs, and solar cells. This review will enlighten the promising prospects of these unique, environmentally sustainable materials for next-generation green energy conversion and storage devices. Ionic liquids have much to offer in the field of energy sciences regarding fixing some of the world’s most serious issues. However, most of the discoveries discussed in this review article are still at the laboratory research scale for further development. This review article will inspire researchers and readers about how ILs can be effectively applied in energy sectors for various applications as mentioned above. © The Author(s), under exclusive licence to Springer-Verlag GmbH Germany, part of Springer Nature 2023.
Synthesis, characterization of ruthenium (III) macrocyclic complexes of 1,4,8,11-tetraazacyclotetradecane(cyclam) and in vitro assessment of anti-cancer activity
(Elsevier Ltd, 2022) Rahul Kanaoujiya; Dharmveer Singh; Tarun Minocha; Sanjeev Kumar Yadav; Shekhar Srivastava
Cervical cancer is the fourth prevalent malignancy associated with cancer related deaths worldwide. A variety of resources has been invested in its treatment but the overall results are still unsatisfactory. During the last couple of years, a myriad of studies has inflamed the interest of macrocyclic ligands against a variety of chronic diseases. Macrocyclic ligands are pertinent because of their own attribution transient to the transition metal complexes. In this study noble macrocyclic ligand complexes of ruthenium (III) have been synthesized [RuCl3L1](Where L1 = 1,4,8,11-tetraazacyclotetradecane) and evaluated for the characterization. Cyclam macrocyclic ligand was used and its complexation properties with ruthenium (III) metal were investigated by elemental analysis, molar conductivity, FTIR, and XPS. Spectroscopic studies revealed distorted octahedral geometry of complexes. Moreover, the synthesized noble ruthenium cyclam complexes were executed for in vitro assessment to examine the anti-cancer attribute and results suggested that the ruthenium cyclam complex inhibits proliferation and induces apoptosis in cervical cancer SiHa cells. © 2022