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

• Main Author: Mehmet Lütfi Yola
• Format: Article
• Language: English
• Published: Pamukkale University 2019-12-01
• Series: Pamukkale University Journal of Engineering Sciences
• Subjects: nanocomposite; carbon nitride nanotubes; polyoxometalates; direct fuel cell; nanokompozit; karbon nitrit nanotüp; polioksometalat; doğrudan yakıt hücresi
• Online Access: https://dergipark.org.tr/tr/pub/pajes/issue/50906/664945

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.