Synthesis of Nanomaterials for Fuel Cell Applications

Suryawanshi, Prashant L.; Polagani, Rajesh Kumar; Sonawane, Shirish H.

doi:10.1016/b978-0-12-813731-4.00007-2

Cited by 8 publications

(4 citation statements)

References 72 publications

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“…Bimetallic catalysts with two metal elements exhibit distinct properties from their respective parent monometallic for physical, chemical, electronic, and photonic properties (Suryawanshi et al, 2018). Compared to monometallic catalysts, they are advantageous due to synergistic effect, morphostructures, and their performances varied with the synthesis method (De et al, 2016).…”

Section: Bimetallic Catalysts For Renewable Diesel Productionmentioning

confidence: 99%

RETRACTED: Recent Development of Renewable Diesel Production Using Bimetallic Catalysts

et al. 2021

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Renewable diesel as a potential sustainable energy source in future requires catalysts to convert the feedstocks into end products. Among various type of catalysts, bimetallic catalysts are widely applied in the renewable diesel production due to their unique catalytic properties and enhanced catalytic activities, which differ from their parent monometallic catalysts. This mini review comprised of the brief introduction on technologies in producing renewable diesel and aims to discuss the underneath knowledge of synergistic interactions in bimetallic catalysts that synthesized through various techniques. The novelty of this review reveals the recent development of renewable diesel production, highlighting the mechanisms of bimetallic catalysts in the enhancement of the catalytic activity, and exploring their possibilities as practical solution in industrial production.

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Section: Bimetallic Catalysts For Renewable Diesel Productionmentioning

confidence: 99%

RETRACTED: Recent Development of Renewable Diesel Production Using Bimetallic Catalysts

et al. 2021

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“…8 Pt alloying with transition metals, such as Co, Cr, Mo, Sn, Cu, Mn, Fe, Ir, Ti, Ag, Pd, Ru, and Ni, proved to increase the EASA and thereby the ORR activity through improving the kinetics. 2,[9][10][11][12][13] The Pt-Ni/C electrocatalyst lowers catalyst costs while resisting electrolyte dissolution. However, most previously documented Pt-alloy catalyst synthesis processes were extremely difficult and involved mediocre conditions.…”

Section: Introductionmentioning

confidence: 99%

“…Carbon‐supported Pt‐alloy electrocatalysts typically reduce the cost of PEM fuel cells due to the reduced use of Pt 8 . Pt alloying with transition metals, such as Co, Cr, Mo, Sn, Cu, Mn, Fe, Ir, Ti, Ag, Pd, Ru, and Ni, proved to increase the EASA and thereby the ORR activity through improving the kinetics 2,9‐13 . The Pt‐Ni/C electrocatalyst lowers catalyst costs while resisting electrolyte dissolution.…”

Section: Introductionmentioning

confidence: 99%

Effect of Ni loading onto Pt (Pt‐Ni/C) electrocatalysts for PEM fuel cell: A study of ORR activity, stability, and temperature effect

Polagani,

Suryawanshi,

Chinthala

et al. 2023

Asia-Pacific J Chem Eng

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Pt is a noble metal when alloyed with transition metals like Ni onto the carbon support, minimizes the cost and increases the oxygen reduction reaction (ORR) activity and stability of Pt‐Ni/C electrocatalyst in a low‐temperature proton exchange membrane (LTPEM) fuel cell. A simple sonochemical‐based synthesis of Pt‐Ni/C bimetallic nanoparticles is carried out through varying amounts of Ni and Pt precursors. The various combinations of Pt and Ni metal (50:50, 75:25, and 83:17) nanoparticles were uniformly distributed on a carbon support. The shifting of 2θ values to higher levels in XRD patterns confirmed the alloy formation between Pt and Ni. The carbon (60 wt. %) supported Pt and Ni (40 wt. %) electrocatalyst ink is coated on a carbon paper which acts as a gas diffusion layer (GDL). The electrocatalytic performance of Pt‐Ni/C was evaluated in the PEM fuel cell using an electrochemical test station. The best performance was observed with the Pt: Ni (83:17) coated electrocatalyst, which delivered 0.162 W/cm2 power at 0.45 V. Also, the PEM fuel cell performance was enhanced by increasing the single cell's operating temperature.

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“…To date, various types of energy generation and storage devices have been introduced, such as solar cells, fuel cells, batteries and supercapacitors. [1][2][3][4] A clean solution to the energy and environmental crisis is offered by photovoltaics (PVs). Compared to silicon solar cells, Dye-Sensitized Solar Cells (DSSCs) have received more attention due to their low cost, ease of device assembly, relatively high power conversion efficiency, and environmentally friendly.…”

mentioning

confidence: 99%

Graphene Quantum Dots Supported Mo₃S₄ as a Promising Candidate for Pt-Free Counter Electrode in Dye-Sensitized Solar Cell and Supercapacitor Applications

Gayathri¹,

Peter²,

Mohan³

2021

ECS J. Solid State Sci. Technol.

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We have synthesized with and without graphene quantum dots (GQDs) supported Molybdenum sulfide (Mo 3 S 4 /GQDs) by the hydrothermal route and examined the effect on electrochemical and dye sensitized solar cells (DSSCs) performance. The crystalline structure and composition are elucidated by X-ray diffraction and X-ray photoelectron spectroscopy, respectively. The synthesized samples show a spherical nature which is confirmed by scanning electron microscopy (SEM) and transmission electron microscopy (TEM). JV spectra reveal GQDs modified Mo 3 S 4 counter electrodes deliver the highest short circuit current (J SC ) of 13.84 mA cm −2 , open-circuit voltage (V OC ) of 0.72 V, and power conversion efficiency (PCE) of 5.67%, which is 13% higher compared to pristine counter electrodes. Low peak to peak separation (Epp) and higher peak current density (Jpc) and exchange current density (Jo) are responsible for this improvement. Besides, the samples have been employed as a working electrode and studied supercapacitor performance. Among them, Mo 3 S 4 /GQDs exhibited the highest specific capacitance of 234 F g −1 at 2 A g −1 . The results mentioned above reveal GQDs supported Mo 3 S 4 is not only a viable substitute for Pt-free counter electrodes but also provide a better outlook for energy storage devices.

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Synthesis of Nanomaterials for Fuel Cell Applications

Cited by 8 publications

References 72 publications

RETRACTED: Recent Development of Renewable Diesel Production Using Bimetallic Catalysts

RETRACTED: Recent Development of Renewable Diesel Production Using Bimetallic Catalysts

Effect of Ni loading onto Pt (Pt‐Ni/C) electrocatalysts for PEM fuel cell: A study of ORR activity, stability, and temperature effect

Graphene Quantum Dots Supported Mo₃S₄ as a Promising Candidate for Pt-Free Counter Electrode in Dye-Sensitized Solar Cell and Supercapacitor Applications

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Synthesis of Nanomaterials for Fuel Cell Applications

Cited by 8 publications

References 72 publications

RETRACTED: Recent Development of Renewable Diesel Production Using Bimetallic Catalysts

RETRACTED: Recent Development of Renewable Diesel Production Using Bimetallic Catalysts

Effect of Ni loading onto Pt (Pt‐Ni/C) electrocatalysts for PEM fuel cell: A study of ORR activity, stability, and temperature effect

Graphene Quantum Dots Supported Mo3S4 as a Promising Candidate for Pt-Free Counter Electrode in Dye-Sensitized Solar Cell and Supercapacitor Applications

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Graphene Quantum Dots Supported Mo₃S₄ as a Promising Candidate for Pt-Free Counter Electrode in Dye-Sensitized Solar Cell and Supercapacitor Applications