Preparation of Ni/MgO catalysts for carbon nanofibres by a self-propagating low temperature combustion process

• Autorzy: Zhang, Y. , Tang, Y. H. , Zhang, E. L. , Lin, L. W. , Pei, L. Z.
• Języki publikacji: EN

Abstrakty

EN

Ni/MgO catalysts were prepared using nitrate salt and citric acid in various ratios by the sol-gel selfpropagating, low temperature combustion process. The products were characterized by the scanning electron microscopy, X-ray diffraction, thermogravimetric analysis and differential scanning calorimetry. The results show that Ni/MgO catalyst precursors of various particle sizes can be obtained by controlling the amount of citric acid. The catalytic activity of Ni/MgO decreases as the calcination temperature increases, owing to the difficulty of the NiO reduction. The mechanism of formation of Ni/MgO catalysts has also been proposed. Self-propagation combustion has great advantage of occurring at low temperatures, and the Ni/MgO is a suitable catalyst for low cost preparation of carbon nanofibres.

Słowa kluczowe

EN

Ni/MgO catalyst; self-propagating combustion; sol-gel method

• Czasopismo: Materials Science Poland
• Rocznik: 2010
• Tom: Vol. 28, No. 4
• Strony: 764--772
• Opis fizyczny: Bibliogr. 24 poz.

Twórcy

autor

Zhang, Y.

autor

Tang, Y. H.

autor

Zhang, E. L.

autor

Lin, L. W.

autor

Pei, L. Z.

• Department of Mechanical Engineering Xiamen University of Technology Xiamen Fujian 361024 P. R. China

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