The effect of activated carbon support surface modification on characteristics of carbon nanospheres prepared by deposition precipitation of Fe-catalyst

2nd International Conference on Chemical Engineering (ICCE) UNPAR

Kristianto, H.^1 ; Arie, A.A.^1 ; Susanti, R.F.^1 ; Halim, M.^2 ; Lee, J.K.^2

Department of Chemical Engineering, Faculty of Industrial Technology, Parahyangan Catholic University, Ciumbuleuit 94, Bandung

40141, Indonesia^1

Center of Energy Convergence, Korea Institute of Science and Technology, Hwarangno 14-gil 5, Seongbuk-gu, Seoul

136-791, Korea, Republic of^2

关键词: Activated carbon supports;    Catalysts concentrations;    Deposition precipitation;    Deposition precipitation methods;    Modified activated carbons;    Nitrogen atmospheres;    Oxygen functional groups;    Renewable carbon sources;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/162/1/012034/pdf
DOI  :  10.1088/1757-899X/162/1/012034

来源: IOP

【 摘 要 】

In this study the effect of activated carbon support modification to synthesis of CNSs was observed. Modification of activated carbon was done by using nitric acid. The effect of modification was analyzed from its FTIR spectra. The Fe catalysts were deposited on to the support by using urea deposition precipitation method at various initial catalysts concentration. CNSs was synthesized by utilizing cooking palm oil as renewable carbon source, and pyrolized at 700°C for 1 hour under nitrogen atmosphere. The products obtained then analyzed using SEM-EDS, TEM, XRD, and Raman spectroscopy. The modification of activated carbon support had increased the oxygen functional group. This increase resulted on increase of metal catalysts deposited on activated carbon surface. Peak of C (100) was observed, while ID/IG of samples were obtained around 0.9, which is commonly obtained for CNSs. High catalysts loading on modified activated carbon support caused decomposition of CNSs and formation carbon onion.