Electrochemical reaction and dissociation of glycerol on PdAu surface catalyst

Nabila A. Karim, and Norilhamiah Yahya, and Muhammad Syafiq, and Siti Kartom Kamarudin, (2020) Electrochemical reaction and dissociation of glycerol on PdAu surface catalyst. Sains Malaysiana, 49 (12). pp. 3145-3154. ISSN 0126-6039


Official URL: https://www.ukm.my/jsm/malay_journals/jilid49bil12...


Direct Glycerol Fuel Cell is one of the alternative energy that can produce electricity without burning. The production of electricity without combustion can reduce the use of fossil fuel as well as reduce environmental pollution. A new catalyst of PdAu has been synthesized in this study to increase the activity of the glycerol oxidation reaction. Morphologies analysis was performed on CNF-supported synthesized PdAu. FESEM and TEM image show the PdAu supported on the CNF surface. Both PdAu and CNF has a diameter size of 4-6 nm and 80-130 nm, respectively. In CV analysis, PdAu/CNF has produced an oxidation peak and current density at -0.9 V vs. SCE and 70 mA/cm2 , respectively. Each mechanism of glycerol dissociation step during glycerol oxidation, different atomic active sites are required in PdAu. For example, for glycerol adsorption, Au atom as an active site while for *C3 H7 O3 requires Pd atom and Au atom as the active site. The Au catalyst model shows better adsorption as Au/CNF has a slightly more negative oxidation peak than PdAu. Nevertheless, the Au catalyst showed less durability compared to PdAu.

Item Type:Article
Keywords:Electro-catalyst; Electrochemical reaction; Glycerol; PdAu; Surface reaction
Journal:Sains Malaysiana
ID Code:16179
Deposited By: ms aida -
Deposited On:10 Feb 2021 01:43
Last Modified:13 Feb 2021 13:53

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