Abstract
Abstract: This study focuses on improving hydrogen storage capacity of Carbon Nano Materials (CNMs) by investigating the role of annealing temperature for the synthesis of Copper Nano-Particles (CuNPs) decorated CNMs synthesized from sugarcane bagasse (SCB). SCB was pyrolyzed at around 750°C in an inert medium. Pyrolyzed carbon thus obtained was activated by alkali. These activated carbons were then decorated with CuNPs by annealing at different temperatures in CO2 atmosphere. The CNMs thus synthesized were characterized using XRD and Raman spectroscopic analysis to elucidate the structural intervention with particle size and defects respectively, while EDAX and ICP-AES were utilized to quantify the amount of copper deposited. SEM analysis depicts the porous morphology being decorated with spherical copper nanoparticles. Hydrogen Storage capacity was explored using Sievert’s apparatus. Pore volumes of CNMs synthesized at different annealing temperature were determined from adsorption isotherm co-relating it with hydrogen adsorption observation from Sievert’s apparatus for evaluating better hydrogen storage
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