Inovasi dan Optimasi Metode Pirolisis Material Karbon berbasis Serat Bulu Ayam untuk Aplikasi Material Penyimpan Hidrogen

Deni Shidqi Khaerudini

Abstract


Pembuatan material karbon dari limbah serat bulu ayam telah dilakukan untuk mengkaji optimasi metode pirolisis dengan variasi waktu tahan dan temperatur terhadap struktur, luas permukaan, pori, dan morfologi. Inovasi metode pirolisis two-step yang digunakan yaitu untuk mencapai proses karbonisasi optimal berbasis serat bulu ayam. Metode pirolisis dengan variasi two step berdurasi lama, yaitu step one pada temperatur 215 oC selama 15 jam dan dilanjutkan step two dengan variasi pada temperatur 400, 425, dan 450 oC dengan masing-masing variasi waktu tahan selama 1 dan 0,5 jam. Variasi selanjutnya, inovasi metode pirolisis two-step dilakukan dengan kondisi waktu tahan berdurasi singkat, yaitu: step one pada temperatur 200 oC selama 1 jam dan step two pada temperatur 400 oC selama 1 dan 0,5 jam. Laju pemanasan dan pendinginan yang digunakan yaitu 3 oC/menit. Berdasarkan hasil uji true density, nilai densitas semakin kecil pada waktu tahan yang lama dan temperatur karbonisasi terendah. Hasil pengamatan Field Emission Scanning Electron Microscopy (FESEM) menunjukkan bahwa morfologi permukaan karbon dengan nilai densitas terkecil telah terbentuk pori. Hasil uji Brunnaeur-Emmet-Teller (BET) menunjukkan bahwa pori dan luas permukaan tertinggi terbentuk pada karbon dengan densitas terkecil. Berdasarkan hasil pengujian difraksi sinar-X (XRD), menunjukkan struktur karbon berupa semikristalin.

Keywords


Pirolisis, serat bulu ayam, karbon, material penyimpan hidrogen

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DOI: http://dx.doi.org/10.22441/jtm.v7i3.5002

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