Design of a novel fuel cell-Fenton system: a smart approach to zero energy depollution

Le, Thi Xuan Huong; Esmilaire, Roseline; Drobek, Martin; Bechelany, Mikhael; Vallicari, Cyril; Nguyen, Duy Linh; Julbe, A.; Tingry, Sophie; Cretin, Marc

doi:10.1039/c6ta05443a

Cited by 46 publications

(7 citation statements)

References 43 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…One of the solutions was the self-assembled 3D metallic nano-architectures, which have received tremendous interest in catalysis. [17][18][19][20] Hence, direct syntheses of NPs onto carbon papers or glassy carbon have been initiated from methods of electrodeposition, [19][20][21][22][23] electrospinning, [24][25][26] and wall-jet conguration. 27 However, these methods result in high loading of precious metals and loss of catalytic activity due to the packing of NPs inside the electrode bers.…”

Section: Introductionmentioning

confidence: 99%

Halide-regulated growth of electrocatalytic metal nanoparticles directly onto a carbon paper electrode

Holade

Hickey

2016

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

Section: Introductionmentioning

confidence: 99%

Halide-regulated growth of electrocatalytic metal nanoparticles directly onto a carbon paper electrode

Holade

Hickey

2016

J. Mater. Chem. A

View full text Add to dashboard Cite

show abstract

“…The great importance of this issue is related to the sluggish ORR kinetic that is responsible for more than half of the overall cell voltage loss during the FC's working operation [1,2]. Therefore, developing low-cost electrocatalysts with a high performance toward the ORR is of paramount importance to support the industrial operation of FCs [3,4]. In this context, graphene-based materials appear as a promising means to fulfil the previously mentioned requirements [1].…”

Section: Introductionmentioning

confidence: 99%

S- and N-Doped Graphene Nanomaterials for the Oxygen Reduction Reaction

et al. 2017

View full text Add to dashboard Cite

In the current work, heteroatom-doped graphene materials containing different atomic ratios of nitrogen and sulphur were employed as electrocatalysts for the oxygen reduction reaction (ORR) in acidic and alkaline media. To this end, the hydrothermal route and different chemical reducing agents were employed to synthesize the catalytic materials. The physicochemical characterization of the catalysts was performed by several techniques, such as X-ray diffraction, Raman spectroscopy and elemental analysis; meanwhile, the electrochemical performance of the materials toward the ORR was analyzed by linear sweep voltammetry (LSV), rotating disk electrode (RDE) and rotating ring-disk electrode (RRDE) techniques. The main results indicate that the ORR using heteroatom-doped graphene is a direct four-electron pathway, for which the catalytic activity is higher in alkaline than in acidic media. Indeed, a change of the reaction mechanism was observed with the insertion of N into the graphenic network, by the rate determining step changes from the first electrochemical step (formation of adsorbed OOH) on glassy carbon to the removal of adsorbed O (O ad ) from the N-graphene surface. Moreover, the addition of sulphur atoms into the N-graphene structure increases the catalytic activity toward the ORR, as the desorption of O ad is accelerated.

show abstract

“…The obtained colored azo dye was dissolved in chloroform and then characterized by UV–vis spectroscopy (Figure b). The characteristic absorption peak of the azo bond was observed as a broad band at 482 nm. − This indicates the presence of aromatic primary amines as the main product in the battery discharged product; otherwise, the azo dye formation by reaction with β-naphthol (Figure c) would not be possible. For the standard NB and β-naphthol mixture, no obvious peaks are observed around 482 and 260 nm corresponding to azo bonds and aromatic amines, respectively.…”

Section: Resultsmentioning

confidence: 99%

Zinc Battery Driven by an Electro-Organic Reactor Cathode

Itagi

Battu

Devendrachari

et al. 2018

ACS Sustainable Chem. Eng.

View full text Add to dashboard Cite

Synthesis of organic molecules by utilizing the principles of electrochemistry satisfies 9 out of the 12 postulates of green chemistry, conferring electrochemical synthetic methodologies with clean, safe, and green tags. However, electro-organic synthesis is a heterogeneous interfacial reaction demanding significant driving force in terms of voltage or current. Here, we demonstrate an unusual route for electro-organic synthesis during electricity generation in a battery, where the positive half-cell is designed to function as an organic reactor generating useful chemicals and fuel molecules. The proposed electroorganic synthesizer Zn battery couples organic synthesis with power production during discharge chemistry, thereby demonstrating its tremendous potential in the sustainable energy landscape.

show abstract

Design of a novel fuel cell-Fenton system: a smart approach to zero energy depollution

Abstract: A model azo dye pollutant, Acid Orange 7 (AO7), was removed efficiently from an aqueous medium by a smart eco-friendly Fuel Cell-Fenton (FC-Fenton) system without any external power supply.

Cited by 46 publications

References 43 publications

Halide-regulated growth of electrocatalytic metal nanoparticles directly onto a carbon paper electrode

Halide-regulated growth of electrocatalytic metal nanoparticles directly onto a carbon paper electrode

S- and N-Doped Graphene Nanomaterials for the Oxygen Reduction Reaction

Zinc Battery Driven by an Electro-Organic Reactor Cathode

Contact Info

Product

Resources

About