催化学报 ›› 2012, Vol. 33 ›› Issue (11): 1809-1816.DOI: 10.1016/S1872-2067(11)60452-X

• 研究论文 • 上一篇    下一篇

Electrocatalytic Oxidation of Methanol and Ethanol by Carbon Ceramic Electrode Modified with Ni/Al LDH Nanoparticles

Ghasem KARIM-NEZHAD*, Sara PASHAZADEH, Ali PASHAZADEH   

  1. Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran
  • 收稿日期:2012-07-10 修回日期:2012-08-30 出版日期:2012-11-16 发布日期:2012-11-16

Electrocatalytic Oxidation of Methanol and Ethanol by Carbon Ceramic Electrode Modified with Ni/Al LDH Nanoparticles

Ghasem KARIM-NEZHAD*, Sara PASHAZADEH, Ali PASHAZADEH   

  1. Department of Chemistry, Payame Noor University, PO Box 19395-3697, Tehran, Iran
  • Received:2012-07-10 Revised:2012-08-30 Online:2012-11-16 Published:2012-11-16

摘要: A Ni/Al layered double hydroxide (LDH) nanoparticle modified carbon ceramic electrode (Ni/Al LDH/NMCC) was fabricated and used for the electrocatalytic oxidation of methanol and ethanol in alkaline media. Cyclic voltammetric (CV) studies showed that it gave a significantly higher activity for methanol and ethanol oxidation and can be used as an electrocatalytic anode for fuel cells. The kinetic parameters of the electron transfer coefficient (α) and number of electrons involved in the rate determining step (nα) for the oxidation of methanol and ethanol were determined using CV. The anodic currents showed a linear dependence on the concentration of methanol and ethanol.

关键词: nickel, aluminium, layered double hydroxide, modified carbon ceramic electrode, electrocatalytic oxidation, methanol, ethanol

Abstract: A Ni/Al layered double hydroxide (LDH) nanoparticle modified carbon ceramic electrode (Ni/Al LDH/NMCC) was fabricated and used for the electrocatalytic oxidation of methanol and ethanol in alkaline media. Cyclic voltammetric (CV) studies showed that it gave a significantly higher activity for methanol and ethanol oxidation and can be used as an electrocatalytic anode for fuel cells. The kinetic parameters of the electron transfer coefficient (α) and number of electrons involved in the rate determining step (nα) for the oxidation of methanol and ethanol were determined using CV. The anodic currents showed a linear dependence on the concentration of methanol and ethanol.

Key words: nickel, aluminium, layered double hydroxide, modified carbon ceramic electrode, electrocatalytic oxidation, methanol, ethanol