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Chaudhary Charan Singh Haryana Agricultural University, Hisar

Chaudhary Charan Singh Haryana Agricultural University popularly known as HAU, is one of Asia's biggest agricultural universities, located at Hisar in the Indian state of Haryana. It is named after India's seventh Prime Minister, Chaudhary Charan Singh. It is a leader in agricultural research in India and contributed significantly to Green Revolution and White Revolution in India in the 1960s and 70s. It has a very large campus and has several research centres throughout the state. It won the Indian Council of Agricultural Research's Award for the Best Institute in 1997. HAU was initially a campus of Punjab Agricultural University, Ludhiana. After the formation of Haryana in 1966, it became an autonomous institution on February 2, 1970 through a Presidential Ordinance, later ratified as Haryana and Punjab Agricultural Universities Act, 1970, passed by the Lok Sabha on March 29, 1970. A. L. Fletcher, the first Vice-Chancellor of the university, was instrumental in its initial growth.

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Subject: Physics × Start date: 1990 × Thesis Type: Ph.D ×
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    ThesisItemOpen Access
    Sustainable energy storage in supercapacitors using agro-waste materials
    (CCSHAU, Hisar, 2023-05) Raman Devi; Vinay Kumar
    Eco-friendly and low-cost agro-waste derived novel materials have been fascinated a lot of attention to generating porous activated carbon (AC), graphene oxide (GO), biochar, etc, with specific surface parameters (surface area, pore size, pore volume) required for energy storage applications. In this work, paddy straw and sugarcane bagasse, the agro-waste, are utilized to synthesize AC and GO. As-produced ACP-5M acquired a high SSA of 1358 m2 g-1 with hierarchical pore configuration. In order to enhance the electrochemical performance of ACP and GO were composited with manganese oxide to increase the active sites. The prepared materials were characterized using different characterization tools like XRD, FTIR, FR-SEM, BET, XPS and TEM. The electrochemical was tested using CV, GCD and EIS techniques. The composite of MnO2 with ACP-5M obtained the specific capacitance of 438 F g-1 in 6 M KOH aqueous electrolyte with a specific energy of 60.8 Wh kg-1 at a specific power of 500 W kg-1. In addition, the symmetric device fabricated using this material offers a specific capacitance of 239 F g-1 with a specific energy of 65.06 Wh kg-1 at a specific power of 699.2 W kg-1. Hence, these findings suggest that all the synthesized electrode materials can be applied as efficient and effective electrode materials in high-performance supercapacitors.