Bazı ağaç yapraklarından sert karbon üretimi ve enerji depolamada kullanımı ile karakterizasyonu
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Dosyalar
Tarih
2023
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
İnönü Üniversitesi
Erişim Hakkı
info:eu-repo/semantics/openAccess
Özet
Enerji yaşamın temeli olup insan ihtiyaçlarının üretilmesinde en temel unsur olmuştur. Son yıllarda özellikle küresel ısınma sonucu karbondioksit üretimine karşı fosil yakıtların kullanımına kısıtlamalar ön plana çıkmaktadır. Büyük otomotiv firmaları yakın gelecekte elektrik enerjisi kullanan modellerin geliştirilmesini yönelik malzeme üretimine büyük önem vermeye başlamışlardır. Bu konuda önemli adımlar atılmaya başlanmasına rağmen enerji depolamada ve şarj edilebilme sıklığı ve süresiyle ilgili olarak sıkıntılar henüz aşılmamış durumdadır. Lityum iyon piller dünyadaki lityumun rezervi nedeniyle yeni arayışlara neden olmuştur. Aktif karbon temelli kapasitörler ve sodyum iyon pillerin kullanımı için yoğun çalışmalar yapılmakta olup sert karbonun sodyum iyon pillerde kullanımı ön plana çıkmaya başlamıştır. Bu tez kapsamında biyokütle olarak üç farklı ağaç (meşe, kayısı ve kiraz) yaprağından sert karbon üretimi, karakterizasyonu ve enerji depolama özelliğinin (sodyum iyon pil ve/veya kapasitör) incelenmiştir. Öncelikle yeşil yapraklar biyokütle kaynağı olarak kullanılmış olup ağaç üzerindeki yapraklar toplandıktan sonra temiz su ile yıkanarak laboratuvar ortamında toz haline getirilmiştir. Aynı işlem basamakları sonbahar da ağaçlardan dökülmüş yapraklar için de yapılmıştır. Öğütülmüş tüm örneklerin kül tayinleri yapılmış olup ham örnekleri FTIR, XRD ve SEM analizleri ile karakterizasyonları yapılmıştır. Öğütülmüş yaprak numunelerinin üç bölge ısıtmalı silindirik fırında quartz cam boru içerisine alınarak, 900, 1100 ve 1100oC sıcaklıklarda inert azot atmosferinde 5oC/dakika ısıtma hızlarında sert karbon üretimleri yapılmış, karakterizasyonu ve enerji depolama özelliği detaylıca incelenerek Na-İyon batarya üretilmiştir. Anahtar Kelimeler: Yaprak, sert karbon, enerji depolama
Energy is the basis of life and has been the most basic element in the production of human needs. In recent years, restrictions on the use of fossil fuels have come to the fore, especially against the production of carbon dioxide as a result of global warming. Large automotive companies have started to attach great importance to the production of materials for the development of models that use electrical energy in the near future. Although important steps have been taken in this regard, the problems related to energy storage and the frequency and duration of charging have not been overcome yet. Lithium-ion batteries have led to new searches due to the reserves of lithium in the world. Intensive studies are being carried out for the use of active carbon-based capacitors and sodium ion batteries, and the use of hard carbon in sodium ion batteries has begun to come to the fore. In this thesis, sert carbon production, characterization and energy storage properties (sodium ion battery and/or capacitor) from three different tree leaves (oak, apricot and cherry) as biomass were investigated. First of all, green leaves were used as a source of biomass, and after the leaves on the tree were collected, they were washed with clean water and turned into powder in the laboratory environment. The same process steps were performed for the leaves that fell from the trees in autumn. Ash determination of all ground samples was made and raw samples were characterized by FTIR, XRD and SEM analyses. The ground leaf samples were taken into a quartz glass tube in a cylindrical furnace with three zone heating, and hard carbon was produced at temperatures of 900, 1100 and 1100oC in an inert nitrogen atmosphere at heating rates of 5oC/minute, characterization and energy storage properties were examined in detail and Na-ion batteries were produced. Keywords: Leaf, sert carbon, energy storage
Energy is the basis of life and has been the most basic element in the production of human needs. In recent years, restrictions on the use of fossil fuels have come to the fore, especially against the production of carbon dioxide as a result of global warming. Large automotive companies have started to attach great importance to the production of materials for the development of models that use electrical energy in the near future. Although important steps have been taken in this regard, the problems related to energy storage and the frequency and duration of charging have not been overcome yet. Lithium-ion batteries have led to new searches due to the reserves of lithium in the world. Intensive studies are being carried out for the use of active carbon-based capacitors and sodium ion batteries, and the use of hard carbon in sodium ion batteries has begun to come to the fore. In this thesis, sert carbon production, characterization and energy storage properties (sodium ion battery and/or capacitor) from three different tree leaves (oak, apricot and cherry) as biomass were investigated. First of all, green leaves were used as a source of biomass, and after the leaves on the tree were collected, they were washed with clean water and turned into powder in the laboratory environment. The same process steps were performed for the leaves that fell from the trees in autumn. Ash determination of all ground samples was made and raw samples were characterized by FTIR, XRD and SEM analyses. The ground leaf samples were taken into a quartz glass tube in a cylindrical furnace with three zone heating, and hard carbon was produced at temperatures of 900, 1100 and 1100oC in an inert nitrogen atmosphere at heating rates of 5oC/minute, characterization and energy storage properties were examined in detail and Na-ion batteries were produced. Keywords: Leaf, sert carbon, energy storage
Açıklama
Anahtar Kelimeler
enerji depolama
Kaynak
WoS Q Değeri
Scopus Q Değeri
Cilt
Sayı
Künye
Yıldız, A. T. (2023). Bazı ağaç yapraklarından sert karbon üretimi ve enerji depolamada kullanımı ile karakterizasyonu. Yayınlanmış Yüksek Lisans Tezi. İnönü Üniversitesi, Malatya.
