Fe-N/C catalysts for oxygen reduction reaction supported on different carbonaceous materials. Performance in acidic and alkaline direct alcohol fuel cells

Osmieri, Luigi; Cid, Ricardo Escudero; Armandi, Marco; Monteverde, Alessandro; Fierro, J.L.G.; Ocón, P.; Specchia, Vito

doi:10.1016/j.apcatb.2017.01.003

Cited by 128 publications

(61 citation statements)

References 91 publications

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“…A reliable ORR catalyst should follow the four-electron reduction pathway because H 2 O 2 formation will degrade the fuel cell membrane and eventually reduce the fuel cell efficiency. 24 In the study conducted by L. Osmieri et al, 25 the DMFC performance was evaluated while using Fe-N-C catalysts synthesized from four different carbon supports. 6,[12][13][14][19][20][21][22] Several studies have reported the performance of the single DMFC operation utilizing the Fe-and Co-based catalysts as the cathode.…”

Section: Introductionmentioning

confidence: 99%

Performance of direct formic acid fuel cell using transition metal‐nitrogen‐doped carbon nanotubes as cathode catalysts

et al. 2019

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Summary The application of nonprecious metal catalysts, such as iron (Fe) and cobalt (Co) catalyst, to direct liquid fuel cells (DLFCs), especially in direct methanol fuel cells, has been widely investigated. However, the application of such non‐Pt catalysts as cathode catalysts in direct formic acid fuel cell (DFAFC) operations has not yet been investigated. This study intends to evaluate the formic acid tolerance of such catalysts in case of oxygen reduction reaction. In addition, we investigate their performances in DFAFC using the Fe‐ and Co‐nitrogen‐doped carbon nanotubes (Fe‐NCNT and Co‐NCNT) as the cathode catalysts and compare these performances with the commercial Pt/C catalyst. Herein, Fe‐NCNT and Co‐NCNT were synthesized using the conventional method by the pyrolysis of the multiwalled carbon nanotubes, dicyandiamide, and metal salt under the flow of N2 at 800°C. Both the Fe‐NCNT and Co‐NCNT catalysts exhibit higher formic acid tolerance when compared with that exhibited by the Pt/C catalyst. Further, single‐cell tests with hydrogen‐fed polymer electrolyte fuel cell (PEFC) and DFAFC operations were conducted under various operating conditions to compare the performances of the cells while using the prepared catalysts and the conventional Pt/C catalyst. The PEFC performances in both the Fe‐NCNT and Co‐NCNT catalysts were significantly low (94.9mW cm−2 for Fe‐NCNT and 164.0 mW cm−2 for Co‐NCNT at 60°C). Regardless, the Co‐NCNT catalyst exhibited a maximum power density of 160.7 mW cm−2 in DFAFC operated at 60°C and7‐M formic acid. This value is comparable with that for DFAFC with a Pt/C catalyst (128.9mW cm−2) and is considerably higher than that obtained for other DLFCs while using a non‐Pt catalyst. Therefore, the usage of a non‐Pt metal catalyst as the cathode catalyst is preferable in case of DFAFC.

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Section: Introductionmentioning

confidence: 99%

Performance of direct formic acid fuel cell using transition metal‐nitrogen‐doped carbon nanotubes as cathode catalysts

et al. 2019

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“…Thus, the ORR as the cornerstone reaction of fuel cells and has drawn an extensive attention, which raises growing interest to explore efficient ORR electrocatalysts. In spite of great achievements made in noble-metal electrocatalysts, the high cost, scarcity and instability impede its further application [4,5]. In this respect, enormous viable noble-metal-free catalysts (Fe, Co, etc.)…”

Section: Introductionmentioning

confidence: 99%

Cost-Effective and Facile Preparation of Fe2O3 Nanoparticles Decorated N-Doped Mesoporous Carbon Materials: Transforming Mulberry Leaf into a Highly Active Electrocatalyst for Oxygen Reduction Reactions

Zhang

Guan

et al. 2018

Catalysts

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Herein, a promising method to prepare efficient N-doped porous carbon-supported Fe 2 O 3 nanoparticles (Fe 2 O 3 /N-PCs) ORR electrocatalysts is presented. The porous carbon was derived from a biomass i.e., mulberry leaf through a cost-effective approach. The existence of diverse compounds containing carbon, oxygen, nitrogen and sulfur in mulberry leaf benefit the formation and uniform dispersion of Fe 2 O 3 nanoparticles (NPs) in the porous carbon. In evaluating the effects of the carbon support on the Fe 2 O 3 NPs towards the ORR, we found that the sample of Fe 2 O 3 /N-PCs-850 (Fe 2 O 3 /N-PCs obtained at 850 • C) with high surface area of 313.8 m 2 ·g −1 exhibits remarkably superior ORR activity than that of materials acquired under other temperatures. To be specific, the onset potential and reduction peak potential of Fe 2 O 3 /N-PCs-850 towards ORR are 0.936 V and 0.776 V (vs. RHE), respectively. The calculated number of electron transfer n for the ORR is 3.9, demonstrating a near four-electron-transfer process. Furthermore, it demonstrates excellent longtime stability and resistance to methanol deactivation compared with Pt/C catalyst. This study provides a novel design of highly active ORR electrocatalysts from low-cost abundant plant products.

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“…Considering the fast‐growing works on noble‐metal‐free iron/nitrogen/carbon (Fe‐N‐C) catalysts as the highest potential low‐cost oxygen reduction reaction (ORR) catalysts for fuel cell applications, this work will attempt to anchor various Fe‐N‐C with different nitrogen precursors such as urea, polyaniline, and choline chloride onto the biomass RGO support. The use of the biomass RGO is expected to result in comparable (ORR) activity under alkaline conditions as reported Fe‐N‐C catalysts …”

Section: Introductionmentioning

confidence: 79%

Noble‐free oxygen reduction reaction catalyst supported on Sengon wood ( Paraserianthes falcataria L. ) derived reduced graphene oxide for fuel cell application

et al. 2019

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Summary Reduced graphene oxide (RGO) has progressed as one of key emerging carbon for catalyst support material. As an alternative to the conventional RGO precursor, biomass Sengon wood was converted into RGO for use as a noble metal free catalyst support in oxygen reduction reaction (ORR). This work intends to reveal the applicability of Sengon wood‐derived RGO in anchoring/doping iron and nitrogen particles onto its surface and to study its ORR performance in a half‐cell environment. Thin‐sheet layer and highly defective (ID/IG) was gradually obtained at elevated pyrolysis temperature of Sengon wood graphene oxide (GO) at range 700°C to 900°C. As prepared RGO was further doped into catalyst (Fe/N/RGO) through the same pyrolysis procedure at a selected temperature after mixing the GO powder with iron chloride and different nitrogen precursors (urea, choline chloride, and polyaniline) at a fixed ratio. The ORR activity reached a current density up to 2.43 mA/cm2, which in conjunction with smooth multilayer sheet morphology and high graphitic‐N content as the active sites. Stability analysis indicated an 85% current efficiency and only 0.03 V reduction in onset potential on methanol resistant test for Fe/ChoCl/RGO catalyst. This study revealed that Sengon wood‐derived RGO successfully supported Fe‐N‐C catalyst which showed comparable oxygen reduction activity to Pt/C.

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Fe-N/C catalysts for oxygen reduction reaction supported on different carbonaceous materials. Performance in acidic and alkaline direct alcohol fuel cells

Cited by 128 publications

References 91 publications

Performance of direct formic acid fuel cell using transition metal‐nitrogen‐doped carbon nanotubes as cathode catalysts

Performance of direct formic acid fuel cell using transition metal‐nitrogen‐doped carbon nanotubes as cathode catalysts

Cost-Effective and Facile Preparation of Fe2O3 Nanoparticles Decorated N-Doped Mesoporous Carbon Materials: Transforming Mulberry Leaf into a Highly Active Electrocatalyst for Oxygen Reduction Reactions

Noble‐free oxygen reduction reaction catalyst supported on Sengon wood ( Paraserianthes falcataria L. ) derived reduced graphene oxide for fuel cell application

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