Non-precious metal nanoparticles supported on nitrogen-doped graphene as a promising catalyst for oxygen reduction reaction: Synthesis, characterization and electrocatalytic performance

Ghanbarlou, Hosna; Rowshanzamir, Soosan; Kazeminasab, Bagher; Parnian, Mohammad Javad

doi:10.1016/j.jpowsour.2014.10.001

Cited by 48 publications

(15 citation statements)

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“…It reveals the smaller FeCo nanoparticles size with an average diameter of about 50.4 ± 7.2 nm, with a better nanoparticles dispersion on the reduced GO support. It can be summarized that with the presence of surfactant such as ethylene glycol, it is able to act not only as a reducing agent but also as a dispersing agent, that will result in better dispersion and less agglomeration of the metal nanoparticles (Bide et al 2016;Fashedemi & Ozoemena 2013;Fernandez Alvarez 2011;Ghanbarlou et al 2015;Zamanpour et al 2012). The TEM analysis shows that the electrocatalyst FeCo-NG was successfully synthesized through thermal annealing method.…”

Section: Resultsmentioning

confidence: 99%

“…Carbon materials as support have gained great interest with various modifications in order to prepare support with the higher specific surface area thus enhance the fuel cell performance. The most popular approach recently is to develop Fe-and Co-based nitrogen (N)-containing complexes supported on carbon materials through annealing method (Chen et al 2015;Fu et al 2013;Ghanbarlou et al 2015;Jiang et al 2013;Peng et al 2013;Wang et al 2015;Wu et al 2011;Xie et al 2014).…”

Section: Introductionmentioning

confidence: 99%

“…Many methods were reported to produce FeCo supported nitrogen-doped carbon materials: (1) heat treatment of a mixture consisting of Fe and Co salts and N precursor (from salt or polymer) in an inert atmosphere followed by acidleaching (Fu et al 2013;Xie et al 2014); (2) heat treatment of a mixture consisting of Fe and Co salts and N precursor (from salt or polymer) in an inert atmosphere (without acidleaching) (Jiang & Chu 2014;Ma et al 2014); and (3) wet chemical reduction using reducing agent such as sodium borohydride (NaBH 4 ), hydrazine hydrate (H 6 N 2 O), ethylene glycol (C 2 H 6 O 2 ), etc. (Bide et al 2016;Ghanbarlou et al 2015). Based on the previous studies, heat treatment or thermal annealing has been proven to be a cost-effective method for large-scale production of graphene-based electrocatalysts (Deng et al 2011;Lin et al 2013;Zhang et al 2016).…”

Section: Introductionmentioning

confidence: 99%

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Morphological Studies on the Agglomeration of FeCo Supported Nitrogen-doped Reduced Graphene Oxide Catalyst Prepared at Varying Annealing Temperature

Loh¹,

Samad²,

Yusoff³

et al. 2018

JKUKM

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One of the barriers to the large-scale commercialization of proton exchange membrane fuel cells (PEMFCs) is the high-priced of noble metals such as platinum (Pt). Therefore, in this paper, bimetallic electrocatalyst FeCo supported nitrogen-doped reduced graphene oxide (FeCo-NG) for oxygen reduction reaction (ORR) is proposed and has been successfully prepared through annealing of a mixture containing Fe, Co salts, dicyandiamide (DCDA) and graphene oxide (GO). The starting material GO appeared to be in multilayer sheets through scanning electron microscopy (SEM) and transmission electron microscopy (TEM) analysis. Due to the high annealing temperature and the absence of the surfactant, agglomeration of FeCo nanoparticles was observed from the morphology analysis. The macrostructure size of the metals particles was observed to be increased over temperature. As the temperature increases, the agglomeration gets more intense because of the increased of van der Waals cohesive forces between the nanoparticles. In addition, the weak electrostatic interaction between the metal cations with the nitrogen and the GO sheets could also be the cause of the agglomeration. The weak electrostatic interaction caused the nanoparticles (Fe and Co) not attracted onto the GO sheets thus inhibit the reduction of FeCo and GO to occur in situ simultaneously. It is believed that the agglomeration of the electrocatalyst FeCo-NG could results to poor electrocatalytic activity of PEMFC.

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Section: Resultsmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Morphological Studies on the Agglomeration of FeCo Supported Nitrogen-doped Reduced Graphene Oxide Catalyst Prepared at Varying Annealing Temperature

Loh¹,

Samad²,

Yusoff³

et al. 2018

JKUKM

View full text Add to dashboard Cite

show abstract

“…Among them, transition metal-based electrocatalysts have exhibited promising ORR performance in basic electrolytes and active research is being done in using these as Pt catalyst replacements [1][2][3][4][5]. Among the various transition metals, cobalt is the most widely used as an alternative catalyst material due to its decent oxygen reduction reaction activity, higher four-electron selectivity, high durability, and low price [6][7][8][9]. On the other hand, cobalt nanoparticles as single active sites supported on a pristine carbon matrix often exhibit low activity compared with platinum catalysts [10,11].…”

Section: Introductionmentioning

confidence: 99%

Cobalt Nanoparticles on Plasma-Controlled Nitrogen-Doped Carbon as High-Performance ORR Electrocatalyst for Primary Zn-Air Battery

Kim

Hyun

2020

Nanomaterials

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Metal–air batteries and fuel cells have attracted much attention as powerful candidates for a renewable energy conversion system for the last few decades. However, the high cost and low durability of platinum-based catalysts used to enhance sluggish oxygen reduction reaction (ORR) at air electrodes prevents its wide application to industry. In this work, we applied a plasma process to synthesize cobalt nanoparticles catalysts on nitrogen-doped carbon support with controllable quaternary-N and amino-N structure. In the electrochemical test, the quaternary-N and amino-N-doped carbon (Q-A)/Co catalyst with dominant quaternary-N and amino-N showed the best onset potential (0.87 V vs. RHE) and highest limiting current density (−6.39 mA/cm2). Moreover, Q-A/Co was employed as the air catalyst of a primary zinc–air battery with comparable peak power density to a commercial 20 wt.% Pt/C catalyst with the same loading, as well as a stable galvanostatic discharge at −20 mA/cm2 for over 30,000 s. With this result, we proposed the synergetic effect of transitional metal nanoparticles with controllable nitrogen-bonding can improve the catalytic activity of the catalyst, which provides a new strategy to develop a Pt-free ORR electrocatalyst.

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“…It has been applied in a broad range of application fields 1. For instance it has been extensively used in the study of fuel cells 4–7, batteries 8–12, supercapacitors 13–17, electrochemical reaction kinetics 18–21, coatings 22–25, corrosion 26–29 and electrochemical sensors 30–33. This electrochemical measurement technique has also been used in fields that are not historically linked to electrochemistry as enzymatic kinetics 34, cancer detection 35, biochemistry 36, 37 and immunology 38, 39 amongst others.…”

Section: Introductionmentioning

confidence: 99%

Optimization of the Perturbation Amplitude for Impedance Measurements in a Commercial PEM Fuel Cell Using Total Harmonic Distortion

2016

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Abstract:One of the most important measurement parameters in electrochemical impedance spectroscopy (EIS) is the perturbation amplitude. The optimum perturbation amplitude value corresponds with a balance between the signal-to-noise ratio improvement and the reduction of the harmonic generation due to nonlinear effects: Therefore, the optimum perturbation amplitude is the maximum amplitude that ensures a linear response of the system. Two strategies were considered in this work: a constant amplitude strategy and a frequency dependent amplitude strategy. On the one hand, for the constant amplitude strategy, the optimum perturbation amplitude for EIS measurements of an individual cell of a commercial PEM fuel cell stack was determined. In order to fulfill this aim, the impedance spectra (at different DC currents) of the individual cell of the commercial PEM fuel cell stack were measured using different perturbation amplitudes. The total harmonic distortion of the recorded voltage signal was determined in each case, applying a FFT based method. The optimum amplitude for each DC current corresponds to the amplitude that minimizes the critical total harmonic distortion value. On the other hand, for the frequency dependent amplitude strategy, the optimum amplitude at each frequency for EIS measurements of an individual cell of a commercial PEM fuel cell stack was determined.

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Non-precious metal nanoparticles supported on nitrogen-doped graphene as a promising catalyst for oxygen reduction reaction: Synthesis, characterization and electrocatalytic performance

Cited by 48 publications

References 50 publications

Morphological Studies on the Agglomeration of FeCo Supported Nitrogen-doped Reduced Graphene Oxide Catalyst Prepared at Varying Annealing Temperature

Morphological Studies on the Agglomeration of FeCo Supported Nitrogen-doped Reduced Graphene Oxide Catalyst Prepared at Varying Annealing Temperature

Cobalt Nanoparticles on Plasma-Controlled Nitrogen-Doped Carbon as High-Performance ORR Electrocatalyst for Primary Zn-Air Battery

Optimization of the Perturbation Amplitude for Impedance Measurements in a Commercial PEM Fuel Cell Using Total Harmonic Distortion

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