Investigation of a carbon-supported quaternary PtRuSnW catalyst for direct methanol fuel cells

Aricò, A.S.; Poltarzewski, Z.; Kim, H.; Morana, Alessandra; Giordano, N.

doi:10.1016/0378-7753(94)02178-6

Cited by 143 publications

(69 citation statements)

References 29 publications

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“…It was found early on that additions of other metals to Pt could enhance the activity of the catalyst dramatically. Species such as Re, Ru, Os, Rh, Mo, Pb, Bi, and Sn have been found to have a promoting effect on the catalytic activity for methanol oxidation, e.g [112][113][114][115][116][117][118][119]. For all these species it was found that the determining factor for promotion is the formation of an adsorbed oxygen containing species on the secondary metal at potentials lower than for Pt.…”

Section: Catalystsmentioning

confidence: 99%

Fuel Cells - Fundamentals and Applications

Carrette

Friedrich

Stimming³

2001

Fuel Cells

1,435

906

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Section: Catalystsmentioning

confidence: 99%

Fuel Cells - Fundamentals and Applications

Carrette

Friedrich

Stimming³

2001

Fuel Cells

1,435

906

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“…The electrocatalytic activity of Pt is known to be promoted by the presence of a second metal, such as Ru or Sn, acting either as an adatom or a bimetal [8][9][10]. The alloying of Sn and Ru with Pt gives rise to electrocatalysts that strongly promote the oxidation of methanol.…”

Section: Methanol Oxidation Electrocatalystsmentioning

confidence: 99%

Status of Technology and Perspectives for Portable Applications of Direct Methanol Fuel Cells

Baglio

Aricò

2010

Ideas in Chemistry and Molecular Sciences

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“…[18] These treatments were done to remove the organic and metallic impurities from the cast membrane. The pre-treated H + Nafion membranes were converted into the Na + Nafion membranes by immersing them in boiling 0.5 mol l −1…”

Section: Preparation Of a Membrane Electrode Assembly (Mea)mentioning

confidence: 99%

Influence of a pore‐former and PTFE in the performance of the direct ethanol fuel cell

Biswas

Sambu

Basu

2008

Asia-Pacific J Chem Eng

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The direct ethanol fuel cell (DEFC) is a promising fuel cell device, which could provide power to portable and microelectronic equipment in the future. In the present investigation, the influence of a pore-former, polytetrafluoroethylene (PTFE) and catalyst loadings in the electrocatalyst of the anode on DEFC performance is studied. The decal transfer method is used to prepare the membrane electrode assembly (MEA) using Pt-Ru/C (40 : 20% by wt) as the anode catalyst, and Pt/C (40% by wt) as the cathode catalyst, a pore-former, PTFE dispersion and Nafion ionomer. The pore-former used is 10% (by wt) NaHCO 3 in the catalyst ink during the preparation of MEA. The voltage-current characteristics of DEFC were monitored at different loadings of the catalyst, PTFE and a pore-former in MEA. The DEFC performance improved with the use of a pore-former and higher loading of PTFE in MEA. Higher DEFC performance is obtained because PTFE, along with the network of pores in the anode side allowed easy removal of reaction species, thereby rendering the catalyst site available for ethanol oxidation. Further, the use of a pore-former and PTFE at the anode allowed higher loading of electrocatalyst resulting in an increase in the performance of DEFC. The DEFC, with 1 mg cm −2 of catalyst loading at the anode and cathode, 10% (by wt) NaHCO 3 of a pore-former, 20% (by wt) PTFE loading in catalyst ink gives maximum power density of 8.5 mW cm −2 at a current density of 31.3 mA cm −2 .

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Investigation of a carbon-supported quaternary PtRuSnW catalyst for direct methanol fuel cells

Cited by 143 publications

References 29 publications

Fuel Cells - Fundamentals and Applications

Fuel Cells - Fundamentals and Applications

Status of Technology and Perspectives for Portable Applications of Direct Methanol Fuel Cells

Influence of a pore‐former and PTFE in the performance of the direct ethanol fuel cell

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