Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

2147-5881

Pamukkale Üniversitesi

Engineering

Mühendislik

Doğrudan metil alkol oksidasyonu için polioksometalat/karbon nitrit nanotüp nanokompozitinin uygulanması

Application of polyoxometalate/carbon nitride nanotubes nanocomposite for directly methanol oxidation

Yola

Mehmet Lütfi

ISKENDERUN TECHNICAL UNIVERSITY

12 26 2019

25 7 904 906 10 21 2018

2013

Pamukkale Üniversitesi Mühendislik Bilimleri Dergisi

Bu çalışmada geliştirilen yakıt hücresinde yakıt olarak metil alkol kullanılır. Methanol yakıt hücreleri özellikle temiz çevre ve etkili enerji dönüşümü için çok önemlidir. Grafit karbon nitrit (g-C3N4) karbon bazlı nanomateryaller arasında kararlı karbon allotropudur. Π bazlı polimer sisteminde elektron lokalizasyonu olmayan C − N bağlarından oluşur. Polioksometalatlar (POMs) redoks-aktif maddelerdir ve doğrudan metanol oksidasyonu ve enerji depolama için hayati bir potansiyele sahiptir. POM'lar, yüksek değerli metaller ve anyonik metal oksitler içerdikleri için ilgi görmektedir.Bu çalışmada, Polioksometalat/ karbon nitrit nanotüp (C3N4 NTs) sentezlenmiş ve yakıt hücresi için uygulanmıştır. Öncelikle, hazırlanan nanokompozitin yapısı geçirgen elektron mikroskopu (TEM), x-ışınları fotoelektron spektroskopisi (XPS) ve taramalı elektron mikroskopu (SEM) kullanılarak incelenmiştir. Daha sonra bu nanokompozit modifiyeli elektrot kullanılarak elektrokimyasal ölçümler gerçekleştirilmiştir. POM-C3N4 NTs/GCE ve C3N4 NTs/GCE elektrotların elektrokimyasal aktif yüzeyleri sırasıyla 0.511 cm2 ve 0.169 cm2 olarak bulunmuştur. Hazırlanan nankompozit metil alkole karşı aktif bir katalitik etki göstermiştir.

Fuel cell in this study consumes methanol as fuel and they are very important for clean environment and effective energy conversion. Graphitic carbon nitride (g-C3N4) is carbon allotrope among carbon based nanomaterials. It consists of C−N bonds in π-based polymer. Polyoxometalates (POMs) are redox-active materials and have crucial potential for direct methanol oxidation and energy storage. POMs attract important interest because they included in high-valent metals and anionic metal oxides. In present report, the nanocomposite of polyoxometalate/C3N4 NTs was synthesized and applied for fuel cell. Firstly, the structure of prepared nanocomposite was investigated by transmission electron microscope (TEM), x-ray photo electron spectroscopy (XPS) and scanning electron microscope (SEM). After that, the voltammetric measurements were performed by using nanocomposite modified electrode. The electrochemical active areas of POM-C3N4 NTs/GCE and C3N4 NTs/GCE are 0.511 cm2 and 0.169 cm2, respectively. The prepared nanocomposite demonstrated active catalytic effect towards methanol.

Nanocomposite Carbon nitride nanotubes Polyoxometalates Direct fuel cell

Nanokompozit Karbon nitrit nanotüp Polioksometalat Doğrudan yakıt hücresi

Yola ML, Eren T, Atar N, Saral H, Ermiş İ. “Direct-methanol fuel cell based on functionalized graphene oxide with mono-metallic and bi-metallic nanoparticles: Electrochemical performances of nanomaterials for methanol oxidation”. Electroanalysis, 28(3), 570-579, 2016.

Akyıldırım O, Kotan G, Yola ML, Eren T, Atar N. “Fabrication of bimetallic Pt/Pd nanoparticles on 2-thiolbenzimidazole functionalized reduced graphene oxide for methanol oxidation”. Ionics, 22(4), 593-600, 2016.

Akyıldırım O, Yüksek H, Saral H, Ermiş İ, Eren T, Yola ML. “Platinum Nanoparticles supported on nitrogen and sulfur-doped reduced graphene oxide nanomaterial as highly active electrocatalysts for methanol oxidation”. Journal of Materials Science: Materials in Electronics, 27(8), 8559-8566, 2016.

Medetalibeyoğlu H, Manap S, Yokuş ÖA, Beytur M, Kardaş F, Akyıldırım O, Özkan V, Yüksek H, Yola ML, Atar N. “Fabrication of Pt/Pd nanoparticles/polyoxometalate/ionic liquid nanohybrid for electrocatalytic oxidation of methanol”. Journal of The Electrochemical Society, 165(5), F338-F341, 2018.

Kwork YH, Wang YF, Tsang ACH, Leung DYC. "Graphene-carbon nanotube composite aerogel with Ru@Pt nanoparticle as a porous electrode for direct methanol microfluidic fuel cell". Applied Energy, 217, 258-265, 2018.

Dong G, Zhang Y, Pan Q, Qiu J. "A fantastic graphitic carbon nitride (g-C3N4) material: Electronic structure, photocatalytic and photoelectronic properties". Journal of Photochemistry and Photobiology C: Photochemistry Reviews, 20, 33-50, 2014.

Mazloum-Ardakani M, Aghaei R, Abdollahi-Alibeik M, Moaddeli A. "Fabrication of modified glassy carbon electrode using graphene quantum dot, gold nanoparticles and 4-(((4-mercaptophenyl)imino)methyl) benzene-1,2-diol by self-assembly method and investigation of their electrocatalytic activities". Journal of Electroanalytical Chemistry, 738, 113-122, 2015.

Niu P, Qiao M, Li Y, Huang L, Zhai T. "Distinctive defects engineering in graphitic carbon nitride for greatly extended visible light photocatalytic hydrogen evolution". Nano Energy, 44, 73-81, 2018.

Wei Z, Liu M, Zhang Z, Yao W, Tan H, Zhu Y. "Efficient visible-light-driven selective oxygen reduction to hydrogen peroxide by oxygen-enriched graphitic carbon nitride polymers". Energy & Environmental Science, 11(9), 2581-2589, 2018.

Atar N, Yola ML, Eren T. “Sensitive determination of citrinin based on molecular imprinted electrochemical sensor”. Applied Surface Science, 362, 315-322, 2016.

Eren T, Atar N, Yola ML. “Facile and green fabrication of silver nanoparticles on a polyoxometalate for Li ion battery”. Ionics, 21(8), 2193-2199, 2015.

Yola ML, Gupta VK, Atar N. “New molecular imprinted voltammetric sensor for determination of ochratoxin A”. Materials Science and Engineering C, 61, 368-375, 2016.

Ertan B, Eren T, Ermiş İ, Saral H, Atar N, Yola ML. “Sensitive analysis of simazine based on platinium nanoparticles on polyoxometalate/multi-walled carbon nanotubes”. Journal of Colloid and Interface Science, 470, 14-21, 2016.

Yola ML, Eren T, Atar N. “A Molecular Imprinted Voltammetric Sensor Based on Carbon Nitride Nanotubes: Application to Determination of Melamine”. Journal of The Electrochemical Society, 163(13), 588-593, 2016.

Li K, Yan L, Zeng Z, Luo S, Luo X, Liu X, Guo H, Guo Y. "Fabrication of H3PW12O40-doped carbon nitride nanotubes by one-step hydrothermal treatment strategy and their efficient visible-light photocatalytic activity toward representative aqueous persistent organic pollutants degradation". Applied Catalysis B: Environmental, 156-157, 141-152, 2014.

Yola ML, Eren T, Atar N. “A sensitive molecular imprinted electrochemical sensor based on gold nanoparticles decorated graphene oxide: Application to selective determination of tyrosine in milk”. Sensors and Actuators B: Chemical, 210, 149-157, 2015.

Yola ML, Atar N, Qureshi MS, Üstündağ Z, Solak AO. “Electrochemically grafted etodolac film on glassy carbon for Pb(II) determination”. Sensors and Actuators B: Chemical, 171-172, 1207-1215, 2012.