Synthesis of graphitic nanofibres using iron (III) oxide catalyst for hydrogen storage application

Authors: Sufian, S.¹; Yusup, S.²; Walker, G. S.³; Shariff, A. M.²

Source: Materials Research Innovations, Volume 13, Number 3, September 2009 , pp. 221-224(4)

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Abstract:

Graphitic nanofibres were synthesised using the chemical vapour decomposition method with ethylene (C₂H₄) as the carbon feedstock and iron (III) oxide as the catalyst. A parametric study was conducted to determine the optimum conditions for producing graphitic nanofibres by applying the Taguchi method. The result shows that the optimum conditions are at 600�C for 4 h and C₂H₄/H₂ flowrate of 30 : 70 mL min^–1. Under these conditions, the sample shows the highest yield and Brunauer–Emmett–Teller specific surface area that are 4�489 g g_cat ^–1 h^–1 and 556�65 m² g^–1 respectively. The sample is applied in H₂ adsorption/desorption process at 77 K and pressure of 20 bar. The mass uptake is found to be 0�643 wt-%.

Keywords: GRAPHITIC NANOFIBRE; IRON (III) OXIDE; TAGUCHI METHOD; HYDROGEN STORAGE

Document Type: Research Article

DOI: http://dx.doi.org/10.1179/143307509X440352

Affiliations: 1: Chemical Engineering Programme, Universiti Teknologi PETRONAS, Bandar Sri Iskandar 31750 Tronoh, Perak, Malaysia;, Email: Suriati@petronas.com.my 2: Chemical Engineering Programme, Universiti Teknologi PETRONAS, Bandar Sri Iskandar 31750 Tronoh, Perak, Malaysia 3: School of Mechanical, Materials and Manufacturing Engineering, University of Nottingham, Nottingham NG7 2RD, UK

Publication date: 2009-09-01

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