BAKIR ASETAT MONOHİDRATIN (Cu(CH3COO)2.H2O) TERMAL BOZUNMASINDAN BAKIR OKSİT (CuO) SENTEZİ

Bakır asetat monohidratın (Cu(CH3COO)2.H2O) termal bozunma yolu ile bakır oksit (CuO) sentezi hava ortamında izotermal olmayan şartlar altında 10°C dak-1’lik ısıtma hızıyla TG-DTG/DSC cihazında incelendi. 25°C’den 900°C’ye kadar termal bozunma prosesinin üç adımda gerçekleştiği görüldü (iki kütle kayıp bölgesi ve bir küçük kütle kazanç bölgesi). 200, 300, 400°C sıcaklıklarda elde edilen ürünler X-ışını kırınımı (XRD), Fourier dönüşümü kızılötesi spektroskopisi (FTIR), Taramalı elektron mikroskobu (SEM), ve Enerji dağıtıcı spektroskopisi (EDS) analizleri ile karakterize edildi. XRD sonuçları CuO nanopartiküllerin monoklinik kristal yapıya sahip olduğunu göstermektedir. SEM görüntüleri CuO nanopartiküllerinin şekil olarak küresel olduğunu göstermektedir. CuO nanopartiküllerin boyutu, tavlama sıcaklığındaki bir artışla azaldı.

Anahtar Kelimeler:

Bakır asetat monohidrat, bakır oksit, termal bozunma

SYNTHESIS OF COPPER OXIDE (CuO) FROM THERMAL DECOMPOSITION OF COPPER ACETATE MONOHYDRATE (Cu(CH3COO)2.H2O)

The synthesis of copper oxide (CuO) via the thermal decomposition of copper (II) acetate monohydrate (Cu(CH3COO)2.H2O) in air atmosphere was investigated at TG-DTG/DSC apparatus with the heating rate of 10°C min-1 under non-isothermal conditions from 25 to 900°C. It was seen from TG-DTG/DSC analyzes that the thermal decomposition process consists of three main steps (two mass-loss regions and a tiny mass-gain region). The obtained products at 200, 300, 400°C temperatures were characterized by X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), Scanning electron microscopy (SEM) and Energy disperse spectroscopy (EDS) analysis. The XRD results show that the CuO nanoparticles having the monoclinic crystal structure. The SEM images showed that CuO nanoparticles were spherical in shape. The size of CuO nanoparticles decreased with an increase in annealing temperature.

Keywords:

Copper acetate monohydrate, copper oxide, thermal decomposition,

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