Understanding the influence of Ni, Co, Rh and Pd addition to PtSn/C catalyst for the oxidation of ethanol by in situ Fourier transform infrared spectroscopy

Seden Beyhan; Jean Michel Léger; Figen Kadirgan

doi:10.1016/j.apcatb.2013.07.020

Understanding the influence of Ni, Co, Rh and Pd addition to PtSn/C catalyst for the oxidation of ethanol by in situ Fourier transform infrared spectroscopy

Seden Beyhan^*, Jean Michel Léger, Figen Kadirgan

^*Corresponding author for this work

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

60 Citations (Scopus)

Abstract

The results showed that the catalytic activity of Pt₈₀Sn₁₀Ni₁₀/C and Pt₈₀Sn₁₀Pd₁₀/C for electrooxidation of ethanol is directly favoured to acetic acid potential at around 0.25 and 0.3V vs. RHE, respectively. These suggest that the addition of Ni or Pd to PtSn greatly enhances the formation of acetic acid at lower potential. However, Pt/C, Pt₈₀Sn₁₀Ni₁₀/C and Pt₈₀Sn₁₀Rh₁₀/C electrocatalysts showed a better performance than Pt₉₀Sn₁₀/C, Pt₈₀Sn₁₀Co₁₀/C and Pt₈₀Sn₁₀Pd₁₀/C electrocatalysts for the production of CO₂ during ethanol oxidation. Therefore, the pathway forming CO₂ is favoured by the presence of Ni and Rh in the PtSn.

Original language	English
Pages (from-to)	66-74
Number of pages	9
Journal	Applied Catalysis B: Environmental
Volume	144
Issue number	1
DOIs	https://doi.org/10.1016/j.apcatb.2013.07.020
Publication status	Published - Jan 2014

Funding

This work was carried out within the framework of a bilateral cooperation programme between Istanbul Technical University (Turkey) and Université de Poitiers (France). S.B. thanks Bourse du Governement Français (Contract #20064739 ) for support.

Funders	Funder number
Bourse du Governement Français	20064739

Keywords

Ethanol electrooxidation pathways
In situ infrared spectroscopy
PtSn-based trimetallic catalyst

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10.1016/j.apcatb.2013.07.020

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title = "Understanding the influence of Ni, Co, Rh and Pd addition to PtSn/C catalyst for the oxidation of ethanol by in situ Fourier transform infrared spectroscopy",

abstract = "The results showed that the catalytic activity of Pt80Sn10Ni10/C and Pt80Sn10Pd10/C for electrooxidation of ethanol is directly favoured to acetic acid potential at around 0.25 and 0.3V vs. RHE, respectively. These suggest that the addition of Ni or Pd to PtSn greatly enhances the formation of acetic acid at lower potential. However, Pt/C, Pt80Sn10Ni10/C and Pt80Sn10Rh10/C electrocatalysts showed a better performance than Pt90Sn10/C, Pt80Sn10Co10/C and Pt80Sn10Pd10/C electrocatalysts for the production of CO2 during ethanol oxidation. Therefore, the pathway forming CO2 is favoured by the presence of Ni and Rh in the PtSn.",

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AB - The results showed that the catalytic activity of Pt80Sn10Ni10/C and Pt80Sn10Pd10/C for electrooxidation of ethanol is directly favoured to acetic acid potential at around 0.25 and 0.3V vs. RHE, respectively. These suggest that the addition of Ni or Pd to PtSn greatly enhances the formation of acetic acid at lower potential. However, Pt/C, Pt80Sn10Ni10/C and Pt80Sn10Rh10/C electrocatalysts showed a better performance than Pt90Sn10/C, Pt80Sn10Co10/C and Pt80Sn10Pd10/C electrocatalysts for the production of CO2 during ethanol oxidation. Therefore, the pathway forming CO2 is favoured by the presence of Ni and Rh in the PtSn.

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Understanding the influence of Ni, Co, Rh and Pd addition to PtSn/C catalyst for the oxidation of ethanol by in situ Fourier transform infrared spectroscopy

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Keywords

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