Solid Polymer Electrolyte (SPE) dari Komposit Pati Jagung dan Garam Aluminium Nitrat untuk Aluminum-Ion Battery

anam, khoirul (2023) Solid Polymer Electrolyte (SPE) dari Komposit Pati Jagung dan Garam Aluminium Nitrat untuk Aluminum-Ion Battery. Masters thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Solid Polymer Electrolyte (SPE) yang dihasilkan dari polimer alam dengan tambahan garam memiliki potensi untuk dikembangkan. Penelitian ini bertujuan untuk mengembangkan SPE dari pati jagung dengan penambahan bahan aditif garam aluminium nitrat (Al(NO3)3). Fleksibiltas dan ketahanan dari SPE dipertahankan dengan penambahan plastisizer gliserol (C3H8O3). SPE dengan konsentrasi garam aluminium nitrat sebesar 0%, 5%, 10%, 15% dan 20% dibuat melalui teknik solution casting, didapat konduktivitas paling tinggi σ = 1,76 x10-4 S/cm pada konsentrasi 20%. Hasil XRD menunjukkan struktur lebih amorf akibat interkalasi kation Al3+ ke dalam pati jagung. Hasil FTIR menunjukkan penambahan garam aluminium nitrat mengubah intensitas gugus O-H mengungkapkan munculnya pembentukan struktur kompleks antara rantai polimer pati jagung dan ion Al3+ dari garam aluminium nitrat menyebabkan terjadinya segmental motion pada rantai polimernya. Hasil foto SEM menunjukkan struktur permukaan lebih terang, terdapat retakan dan permukaan tidak rata seiring penambahan garam mengindikasikan garam berdisosiasi dengan baik dengan matrik polimer. Hasil TGA menunjukkan peningkatan stabilitas termal hingga 2 x dari SPE dengan penambahan garam sampai suhu 90oC. Uji BET menunjukkan struktur mikropori dengan struktur semakin lebar dan volume spesifik SPE semakin kecil mengindikasikan makin besar jumlah gas yang bisa diserap. Uji CV menunjukkan proses elektrokimia reaksi redoks yang reversibel dengan Vredoks = 0,13 V. Hasil penelitian ini bisa dijadikan referensi yang baik untuk mengembangkan SPE pada aluminum–ion battery berbahan dasar pati jagung dan garam aluminium nitrat
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Solid Polymer Electrolyte (SPE) produced from natural polymers with added salt has the potential to be developed. This study aims to develop SPE from corn starch with the addition of aluminum nitrate salt (Al(NO3)3) additives. The flexibility and toughness of SPE are maintained by the addition of glycerol (C3H8O3) plasticizer. SPE with aluminum nitrate salt concentration of 0%, 5%, 10%, 15% and 20% was made by solution casting technique, the highest conductivity was obtained σ = 1.76 x10-4 S/cm at a concentration of 20%. The XRD results show a more amorphous structure due to the intercalation of Al3+ cations into corn starch. The FTIR results show that the addition of aluminum nitrate salt changes the intensity of the O-H groups, revealing the emergence of a complex structure formation between the corn starch polymer chains and Al3+ ions from aluminum nitrate salts causing segmental motion in the polymer chains. The results of SEM photos show that the surface structure is lighter, there are cracks and the surface is uneven as the addition of salt indicates that the salt dissociates well with the polymer matrix. The TGA results showed an increase in the thermal stability up to twice of SPE with the addition of salt, up to 90OC. The BET test shows a microporous structure with a wider structure and a smaller specific volume of SPE indicating a greater amount of gas that can be absorbed. The CV test shows a reversible redox reaction electrochemical process with Vredoks = 0,13V. The results of this research can be used as a good reference for developing SPE on aluminum–ion batteries made from corn starch and aluminum nitrate salt

Item Type:	Thesis (Masters)
Uncontrolled Keywords:	Aluminum-ion battery, Solid Polymer Electrolyte, pati jagung, konduktivitas ionik, amorf, Aluminum-ion battery, Solid Polymer Electrolyte, corn starch, ionic conductivity, amorphous
Subjects:	T Technology > TP Chemical technology
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30101-(S2) Master Thesis
Depositing User:	Khoirul Anam
Date Deposited:	20 Feb 2023 03:29
Last Modified:	20 Feb 2023 03:29
URI:	http://repository.its.ac.id/id/eprint/97625

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