Supercapacitor Electrode Production Using Ruthenium Doped Nanotube

Öz

Among the various energy storage materials, supercapacitors are more preferred recently as they store and transfer energy faster. In this study, supercapacitor electrode active material was prepared using Ruthenium-doped carbon nanotubes. Then, this material was converted into electrodes using sputtering method and a supercapacitor cell was prepared. 6 M KOH was chosen as the electrolyte solution and the electrical properties of the supercapacitor were tested using electrochemical analysis methods. Since the equivalent series resistance of the supercapacitor is very low, it supports the power transfer of the capacitor at high levels, and the energy losses due to the internal resistance of the material are at negligible levels. The specific capacitance value of the electrodes was calculated as 42.24 F/g at a current density of 1 A/g. There was only a 4.1% reduction in the capacity of the electrodes after 100 cycles. It is thought that the electrodes prepared in the light of the obtained data are promising in the field of energy storage due to their high capacity, low internal resistance and high stability.

Anahtar Kelimeler

• Nanotube
• Ruthenium
• Supercapacitor
• Energy Storage

Rutenyum Katkılı Nanotüp Kullanılarak Süperkapasitör Elektrot Üretimi

Öz

Çeşitli enerji depolama malzemeleri arasında süperkapasitörler, enerjiyi daha hızlı depoladıkları ve aktardıkları için son zamanlarda daha çok tercih edilmektedirler. Bu çalışma kapsamında, Rutenyum katkılama yapılmış karbon nanotüp kullanılarak süperkapasitör elektrot aktif malzemesi hazırlanmıştır. Daha sonra bu malzeme püskürtme yöntemi kullanılarak elektrotlara dönüştürülmüş ve bir süperkapasitör hücresi hazırlanmıştır. Elektrolit çözeltisi olarak 6 M KOH seçilmiş ve süperkapassitörün elektriksel özellikleri elektrokimyasal analiz yöntemleri kullanılarak test edilmiştir. Süperkapasitörün eşdeğer seri direnci çok düşük olduğundan kapasitörün güç aktarımının yüksek seviyelerde yapılabilmesini destekler ve malzemenin iç direncinden kaynaklı enerji kayıpları ihmal edilecebilecek seviyelerdedir. 1 A/g akım yoğunluğunda elektrotların spesifik kapasitans değeri 42,24 F/g olarak hesaplanmıştır. Elektrotların kapasitesinde 100 döngü sonucunda sadece %4,1’lik bir azalma olmuştur. Elde edilen veriler ışığında hazırlanan elektrotların yüksek kapasitesi, düşük iç direnci ve yüksek kararlılığı nedeniyle enerji depolama alanında umut vaat ettiği düşünülmektedir.

Anahtar Kelimeler

• Nanotüp
• Rutenyum
• Süperkapasitör
• Enerji Depolama.

Kaynakça

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