New preparation technique and characterisation of nanostructured catalysts for polymer membrane fuel cells

Löffler, Mario; Groß, Bodo; Natter, Harald; Hempelmann, Rolf; Krajewski, Th.; Divišek, J.

doi:10.1016/s1359-6462(01)00760-6

Cited by 16 publications

(3 citation statements)

References 6 publications

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“…The Pt/C catalyst is usually used in the catalytic layer. As is reported in literature, the oxygen reduction reaction (ORR) kinetics on Pt catalyst is approximately six orders of magnitude lower than the hydrogen oxidation reaction (HOR) kinetics (4), which indicates that much more catalyst is needed in cathode than that in anode. There is no doubt that the high system cost of PEMFCs, especially the cost of catalyst layer, blocks the widely application of the PEMFCs.…”

Section: Introductionmentioning

confidence: 70%

Preparation of Pt/Buckypaper by Surface Modified Multi-Walled Carbon Nanotubes for Oxygen Reduction Reaction in PEMFCs

Gao

Zheng

et al. 2015

ECS Trans.

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The multi-walled carbon nanotubes (MWNTs) were treated by different methods with mixed acid to introduce defects. Then the Pt/MWNTs catalyst was synthesized by polyol method. After that, a two layer buckypaper was prepared using a filtration method. The electrochemical characteristics were studied by cyclic voltammetry (CV) and liner sweep voltammetry (LSV) techniques. The results showed that the ultrasonic treatment is the best way to treat the MWNTs and increases the Pt loading in the catalyst compared with other treatments. The CV performance of the Pt/MWNTs-Ultrasonic catalyst is equivalent with the Pt/C JM catalyst and the LSV result of Pt/MWNTs-Ultrasonic catalyst is better than the Pt/C JM catalyst. The Pt/Buckypaper catalyst layer also showed good ORR performance. With the advantage of easy preparation, the Pt/Buckypaper catalyst layer has a potential to be widely used in PEMFCs.

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Section: Introductionmentioning

confidence: 70%

Preparation of Pt/Buckypaper by Surface Modified Multi-Walled Carbon Nanotubes for Oxygen Reduction Reaction in PEMFCs

Gao

Zheng

et al. 2015

ECS Trans.

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“…As an alternative, electrochemical deposition [12,13,22] has also been used to deposit catalyst on the surface of electrode. One advantage of electrochemical deposition is that typically, every catalyst particle has good contact with the electrode.…”

Section: Introductionmentioning

confidence: 99%

“…Another method of making a MEA is to put the catalyst material on the three-phase boundary [13,22]. This method used impregnation of the carbon layer with platinum salt solution and Nafion solution, followed by in situ electrochemical reduction of Pt nanoparticles onto carbon particles inside Nafion.…”

Section: Introductionmentioning

confidence: 99%

Preparation and characterisation of Pt deposition on ion conducting membrane for direct methanol fuel cell electrodes

2005

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Membrane-electrode assemblies (MEAs) for direct methanol fuel cells (DMFC) have been prepared by depositing platinum on the surface of solid polymer electrolytes (SPE). Chemical and electrochemical depositions were used to achieve good adhesion between platinum particles and the SPE and for reducing the contact resistance. Platinum particle structure and composition were investigated by means of SEM and EDX. Cyclic voltammetry (CV) and methanol oxidation tests were used to determine the electrochemical characteristics of the Pt-SPE electrodes which can be applied in DMFC. Overall the electrodes produced by chemical and electrochemical deposition of Pt onto the membranes are not as active as those produced by hot pressing carbon supported Pt catalyst layers onto the membrane.

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Chemical and Photochemical Reactivities of Nanoarchitectures

Self-Assembled Nanostructures

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New preparation technique and characterisation of nanostructured catalysts for polymer membrane fuel cells

Cited by 16 publications

References 6 publications

Preparation of Pt/Buckypaper by Surface Modified Multi-Walled Carbon Nanotubes for Oxygen Reduction Reaction in PEMFCs

Preparation of Pt/Buckypaper by Surface Modified Multi-Walled Carbon Nanotubes for Oxygen Reduction Reaction in PEMFCs

Preparation and characterisation of Pt deposition on ion conducting membrane for direct methanol fuel cell electrodes

Chemical and Photochemical Reactivities of Nanoarchitectures

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