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Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts

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ABSTRACT

PGM-free catalysts were synthesized using sacrificial support method.

Catalysts were made with Fe, Co, Mn and Ni as metal center and AAPyr as precursor.

Fe-catalysts showed highest performance for ORR in microbial fuel cell.

Increase in solution conductivity led to a maximum power of 482 ± 5 μWcm−2

Increase in solution conductivity led to a maximum power of 482 ± 5 μWcm−2

No MeSH data available.


Related in: MedlinePlus

High-resolution N1 s spectra for 4 catalysts. Atomic percentage of different types of metals obtained from Fe 2p, Co 2o, Ni 2p and Mn 2p high resolution spectra is shown for each material.
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fig0010: High-resolution N1 s spectra for 4 catalysts. Atomic percentage of different types of metals obtained from Fe 2p, Co 2o, Ni 2p and Mn 2p high resolution spectra is shown for each material.

Mentions: The chemical composition of 4 electrocatalysts was studied in detail by XPS. Table 2 shows elemental composition and chemical speciation for carbon, nitrogen, and metal. Fig. 2 shows high-resolution N 1 s spectra for materials with four different metals for comparison along with atomic percentage of each type of metal present obtained from corresponding high resolution spectra of metal, i.e. Fe 2p, Co 2p, Ni 2p and Mn 2p (Fig. S2). It was shown previously that N moieties have a positive effect on oxygen reduction reaction [56], [57].


Air Breathing Cathodes for Microbial Fuel Cell using Mn-, Fe-, Co- and Ni-containing Platinum Group Metal-free Catalysts
High-resolution N1 s spectra for 4 catalysts. Atomic percentage of different types of metals obtained from Fe 2p, Co 2o, Ni 2p and Mn 2p high resolution spectra is shown for each material.
© Copyright Policy - CC BY
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC5384433&req=5

fig0010: High-resolution N1 s spectra for 4 catalysts. Atomic percentage of different types of metals obtained from Fe 2p, Co 2o, Ni 2p and Mn 2p high resolution spectra is shown for each material.
Mentions: The chemical composition of 4 electrocatalysts was studied in detail by XPS. Table 2 shows elemental composition and chemical speciation for carbon, nitrogen, and metal. Fig. 2 shows high-resolution N 1 s spectra for materials with four different metals for comparison along with atomic percentage of each type of metal present obtained from corresponding high resolution spectra of metal, i.e. Fe 2p, Co 2p, Ni 2p and Mn 2p (Fig. S2). It was shown previously that N moieties have a positive effect on oxygen reduction reaction [56], [57].

View Article: PubMed Central - PubMed

ABSTRACT

PGM-free catalysts were synthesized using sacrificial support method.

Catalysts were made with Fe, Co, Mn and Ni as metal center and AAPyr as precursor.

Fe-catalysts showed highest performance for ORR in microbial fuel cell.

Increase in solution conductivity led to a maximum power of 482 ± 5 μWcm−2

Increase in solution conductivity led to a maximum power of 482 ± 5 μWcm−2

No MeSH data available.


Related in: MedlinePlus