In this work, Fe2O3 nanooval is successfully synthesized with variation of glycine composition of 9, 12, and 15 mmol at hydrothermal temperature of 160 °C. The Fe2O3 nanooval is indexed by XRD as α-Fe2O3. SEM and TEM images show that the 12 mmol of glycine has the largest diameter with the perfect nanooval form. Nyquist plot shows that the 12 mmol of glycine sample has the best conductivity value of 8.26x10-5 S/m. The CV of sample 12 mmol delivers the best intercalate/de-intercalate with ΔV of 0.82 V. The 12 mmol sample shows the largest specific discharge capacity of 631.62 mAh/g. It is attributed to high conductivity and high kinetics reaction of Li ion during charge-discharge process. Therefore, Fe2O3 nanooval is a promising candidate as anode for lithium-ion battery.
Abstrak. Dalam menentukan daerah prospek panas bumi, pemetaan permukaan diperlukan untuk menentukan titik atau area prospek yang dapat dikaji bawah permukaannya. Pemetaan permukaan bumi dapat dilakukan menggunakan citra satelit landsat 8. Penelitian ini dilakukan untuk memetakan struktur , temperatur permukaan tanah dan batuan permukaan. Hasil yang didapatkan dikorelasikan dengan geologi. Data citra yang digunakan pada penelitian ini adalah citra satelit landsat 8 dengan band 4, band 5, band 7 dan band 11. Untuk memperoleh informasi struktur bawah permukaan dilakukan komposit pada band 4, band 5, band 7. Untuk menentukan temperatur permukaan digunakan band 11 yang dikoreksi atmosfer terlebih dahulu untuk menghilangkan pengaruh atmosfer dalam wilayah termal. Untuk menentukan titik batuan teralterasi maka dilakukan komposit band 7, band 4, band 2. Hasil yang didapatkan adalah struktur bawah permukaan, temperature permukaan dan batuan permukaan tanah.Kata Kunci : Citra Satelit 8 , struktur, alterasi, temperatur permukaan tanah Abstract. Research has been conducted with the aim of mapping structure, surface temperature, surface rock and geological analysis to determine the geothermal prospect of Songgoriti, Batu and surrounding areas with Landsat 8. On this research, Data are bands 4,5,7 and 11. To structural information, a composite of 4,5.7 seconds was used to obtain the thermal satellite used by band 11 corrected bands to eliminate atmospheric influence in the thermal region. To determine the point of alteration of rocks then made a composite band 7, band 4, band 2. The result is a structural map, surface temperature map and surface rocks.
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