CD Skripsi
Sintesis Elektroda Karbon Dari Biomassa Cangkang Biji Mangga Dengan Variasi Suhu Karbonisasi Untuk Aplikasi Sel Superkapasitor
Electrodes are the most important component in improving the performance of
supercapacitor cells. Biomass-derived electrode materials for supercapacitor cells
have in recent years been considered an ideal choice to overcome the energy
crisis. In this study, carbon electrodes were derived from mango seed shell
biomass with an effort to improve the performance of supercapacitor cells
processed by varying the carbonization temperature. Initial preparation was
started with a pre-carbonization process at a temperature of 200 oC, followed by a
chemical activation process with 0.3 M KOH activator then the activated carbon
powder was converted into a monolith form using a Hydraulic Press, the
carbonization process with temperature variations of 500 oC, 600 oC, and 700 oC
was flowed. nitrogen gas and the physical activation process at a temperature of
800 oC was flowed with carbon dioxide gas. The results of the characterization of
the physical properties of the carbon electrodes, namely the average shrinkage of
the mass of the carbon electrode is 24.013% and the density is 31.55%, the
infrared fourier transformation analysis shows that the carbon electrode contains a
carbon-carbon triple bond functional group C≡C at a wave number around
2311.79 cm-1- 2330.11 cm-1, microstructure analysis showed that the carbon
electrode is amorphous state indicated by the presence of peaks at an angle of 2θ
around 24o and 44o, while the lowest Lc value with a value of 6.279 nm obtained
in the CBM-600 sample. Carbonized electrodes at 600 oC posses a surface
morphology of lumps and hollow pores with micro and meso pores, the results of
x-ray dispersive energy showed a carbon content of 91.56%. The results of
electrochemical properties using Cyclic Voltametry showed that the CBM-600
sample produced the highest capacitance spesific value of 255 F/g. The results of
the analysis of physical properties and electrochemical properties showed that the
CBM-600 sample is the best sample compared to that of the CBM-500 and CBM-
700 samples.
Keywords: Carbonization temperature, electrodes, activated carbon, Mango Seed
Shells, supercapacitor
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