Analisis Kinetika Produksi Hidrogen Dari Reaksi Serbuk Dan Chips Aluminium-Air AA1235 Dengan Perlakuan Awal HCl + Na2MoO4·2H2O

Rizal, Muhammad Saiful (2022) Analisis Kinetika Produksi Hidrogen Dari Reaksi Serbuk Dan Chips Aluminium-Air AA1235 Dengan Perlakuan Awal HCl + Na2MoO4·2H2O. Other thesis, Institut Teknologi Sepuluh Nopember.

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Abstract

Hidrogen merupakan salah satu sumber energi alternatif yang sedang tahap pengembangan dan implementasi. Karakteristik ramah lingkungan dan nilai kalori yang tinggi menjadikan hidrogen salah satu yang paling sumber energi alternatif. water splitting merupakan salah satu cara untuk mendapatkan hidrogen dari reaksi antara logam aluminium dengan air. Aluminium yang digunakan adalah AA1235 dari PT. Supra Aluminium Industri. Komposisinya kemudian diuji dengan Inductively Coupled Plasma dan X-Ray Fluorescence. Untuk mempercepat reaksi serta menghasilkan volume hidrogen lebih melimpah digunakan 0,5M NaOH dan 0,04 M Na2MoO4·2H2O. NaOH berlaku sebagai katalis sedangkan Na2MoO4·2H2O sebagai inhibitor terbentuknya Al2O3. Aluminium sebanyak 0,1 gram dalam bentuk chips atau serbuk kemudian diberi perlakuan awal dengan HCl dalam variasi antara 1,5 M dan 2,5 M. Hidrogen diukur dengan menggunakan prinsip manometer terbuka dan menggunakan sensor MQ8. Hasil pengukuran dibandingkan dengan pemodelan shrinking core model dan penurunan massa. Hasil dari pengukuran volume hidrogen menunjukkan molaritas 2.5M menghasilkan hidrogen tertinggi dalam bentuk chips sebanyak 172 ml atau sebesar 2249 ppm. Produk reaksi dianalisis menggunakan Scanning Electron Microscope, X-Ray Diffractometry dan UV-Vis spektrofotometer dan didapatkan bahwa produk reaksi berupa Al(OH)3 bayerite. Sisa Na2MoO4·2H2O pada produk reaksi juga terdeteksi. Morfologi chips menghasilkan lebih banyak hidrogen daripada morfologi serbuk, dikarenakan densitas dislokasi bentuk chips lebih besar daripada bentuk serbuk. Analisis kinetik menggunakan shrinking core model lebih baik daripada penurunan massa yang cenderung underestimate untuk hampir semua kondisi.
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Hydrogen is one of the alternative energy sources which is currently being developed and implemented. Environmentally friendly characteristics and high calorific value make hydrogen one of the most alternative energy sources. Water splitting is one way to get hydrogen from the reaction between aluminum metal and water. The aluminum used is AA1235 from PT. Supra Aluminum Industri. Its composition is checked by Inductively Coupled Plasma and X-Ray Fluorescence. To increase the reaction rate and produce more volume of hydrogen, 0.5M NaOH and 0.04 M Na2MoO4·2H2O were used. NaOH acts as a catalyst while Na2MoO4·2H2O acts as an inhibitor for the formation of Al2O3. 0.1 grams of aluminum in the form of chips or powder were then pretreated with HCl in variations between 1.5 M and 2.5 M. Hydrogen was measured using the open manometer principle and using the MQ8 sensor. The measurement results are compared with the shrinking core model and the reduction in mass. The results of the hydrogen volume measurement show that the molarity of 2.5M produces the highest hydrogen in the form of chips as much as 172 ml or 2249 ppm. The reaction product was analyzed using Scanning Electron Microscope, X-Ray Diffractometry, and UV-Vis spectrophotometer and it was found that the reaction product was Al(OH)3 bayerite. Residual Na2MoO4·2H2O in the reaction product was also detected. The morphology of the chips produced more hydrogen than the morphology of the powder because the dislocation density of the chips was greater than that of the powder. Kinetics analysis using the shrinking core model is better than mass reduction which tends to underestimate for almost all conditions.

Item Type:	Thesis (Other)
Additional Information:	RSF 665.81 Riz a-1 2022
Uncontrolled Keywords:	Hidrogen, perlakuan awal, HCl, NaOH, Na2MoO4·2H2O, pre-treatment
Subjects:	T Technology > TD Environmental technology. Sanitary engineering > TD480.5 Electrodialysis
Divisions:	Faculty of Industrial Technology and Systems Engineering (INDSYS) > Physics Engineering > 30201-(S1) Undergraduate Thesis
Depositing User:	Mr. Marsudiyana -
Date Deposited:	24 Apr 2026 07:03
Last Modified:	24 Apr 2026 07:03
URI:	http://repository.its.ac.id/id/eprint/132912

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