Kajian awal ke atas mangkin berasaskan pd disokong dengan gentian nano karbon untuk pengoksidaan elektro gliserol

Translated title of the contribution: Preliminary study on pd-based binary catalysts supported with carbon nanofiber for the electrooxidation of glycerol

Yahya Norilhamiah, Siti Kartom Kamaruddin, Nabila Abdul Karim, Mohd Shahbudin Mastar @ Masdar, Kee Shyuan Loh

Research output: Contribution to journalArticle

Abstract

In this study, Aurum (Au) was used as the second metal in palladium catalyst (Pd) and carbon nanofiber (CNF) as catalyst support for glycerol oxidation. Second metal and catalyst support will help to improve catalytic activity and decrease adsorbed oxidation intermediates species. Carbon nanofiber supported PdAu nanoparticles was synthesized by using trisodium citrate as stabilizing agent and sodium borohydride as reducing agent. Physicochemical characterizations of the catalyst were performed by X-ray Diffraction (XRD), Transmission Electron Microscope (TEM), Field Emission Scanning Electron Microscope (FESEM) and Brunauer-Emmett-Teller (BET) to study the nature of the catalysts. The electrochemical activity for oxidation of glycerol on PdAu/CNF was evaluated in half cell under alkaline media by cyclic voltammetry potentiostat. The densities and mass activity obtained from half-cell analysis were 73.81 mA cm-2@ 492.04 mA mg-1, 63.82 mA cm-2 @ 425.44 mA mg-1 and 55.73 mA cm-2 @ 371.54 mA mg-1 for PdAu/CNF, Pd/CNF and Au/CNF, respectively in 1 M KOH + 0.5 M glycerol electrolyte. The electrochemical study, exhibited the superior performance of bimetallic PdAu/CNF catalyst as compared to monometallic Pd/CNF. This indicate that the electronic coupling between Pd and Au can promote the electrocatalytic activity for glycerol oxidation.

Original languageMalay
Pages (from-to)700-708
Number of pages9
JournalMalaysian Journal of Analytical Sciences
Volume21
Issue number3
DOIs
Publication statusPublished - 2017

Fingerprint

Carbon nanofibers
Electrooxidation
Catalyst supports
Glycerol
Oxidation
Catalysts
Electron microscopes
Metals
Excipients
Reducing Agents
Palladium
Field emission
Electrolytes
Cyclic voltammetry
Catalyst activity
Nanoparticles
Scanning
X ray diffraction

ASJC Scopus subject areas

  • Analytical Chemistry

Cite this

Kajian awal ke atas mangkin berasaskan pd disokong dengan gentian nano karbon untuk pengoksidaan elektro gliserol. / Norilhamiah, Yahya; Kamaruddin, Siti Kartom; Karim, Nabila Abdul; Mastar @ Masdar, Mohd Shahbudin; Loh, Kee Shyuan.

In: Malaysian Journal of Analytical Sciences, Vol. 21, No. 3, 2017, p. 700-708.

Research output: Contribution to journalArticle

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abstract = "In this study, Aurum (Au) was used as the second metal in palladium catalyst (Pd) and carbon nanofiber (CNF) as catalyst support for glycerol oxidation. Second metal and catalyst support will help to improve catalytic activity and decrease adsorbed oxidation intermediates species. Carbon nanofiber supported PdAu nanoparticles was synthesized by using trisodium citrate as stabilizing agent and sodium borohydride as reducing agent. Physicochemical characterizations of the catalyst were performed by X-ray Diffraction (XRD), Transmission Electron Microscope (TEM), Field Emission Scanning Electron Microscope (FESEM) and Brunauer-Emmett-Teller (BET) to study the nature of the catalysts. The electrochemical activity for oxidation of glycerol on PdAu/CNF was evaluated in half cell under alkaline media by cyclic voltammetry potentiostat. The densities and mass activity obtained from half-cell analysis were 73.81 mA cm-2@ 492.04 mA mg-1, 63.82 mA cm-2 @ 425.44 mA mg-1 and 55.73 mA cm-2 @ 371.54 mA mg-1 for PdAu/CNF, Pd/CNF and Au/CNF, respectively in 1 M KOH + 0.5 M glycerol electrolyte. The electrochemical study, exhibited the superior performance of bimetallic PdAu/CNF catalyst as compared to monometallic Pd/CNF. This indicate that the electronic coupling between Pd and Au can promote the electrocatalytic activity for glycerol oxidation.",
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AU - Karim, Nabila Abdul

AU - Mastar @ Masdar, Mohd Shahbudin

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