Improved Pd electro-catalysis for oxygen reduction reaction in direct methanol fuel cell by reduced graphene oxide

Carrera-Cerritos, R.; Baglio, V.; Aricò, A.S.; Ledesma‐García, J.; Sgroi, Mauro Francesco; Pullini, D.; Prună, A.; Mataix, David Busquets; Fuentes‐Ramírez, Rosalba; Arriaga, L.G.

doi:10.1016/j.apcatb.2013.07.057

Cited by 83 publications

(35 citation statements)

References 28 publications

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“…At present, the research about Pd used as the ORR catalyst mainly focused on the effects of the size [19,20] and shape [21,22] of Pd particles, the addition of other metals [23][24][25] and various support material, such as graphene [26,27], multi-walled carbon nanotube composites [13,14], manganese oxides [28,29], Co 3 W 3 C [16], et al on the ORR activity. However, the valence states of Pd involved in all these work mentioned above are metallic.…”

Section: Introductionmentioning

confidence: 99%

Carbon supported PdO with improved activity and stability for oxygen reduction reaction in alkaline solution

Rao

Yuan

et al. 2014

Electrochimica Acta

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Section: Introductionmentioning

confidence: 99%

Carbon supported PdO with improved activity and stability for oxygen reduction reaction in alkaline solution

Rao

Yuan

et al. 2014

Electrochimica Acta

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“…Interestingly, Carrera-Cerratos et al demonstrated that Pd nanocatalysts are more active when reduced graphene oxide is used as support instead of traditional high-area carbon, but for Pt nanoparticles carbon support yielded better results [21]. Huang et al synthesised PdNPs on reduced graphene oxide that showed similar ORR activity to commercial Pt/C catalyst [22].…”

Section: Introductionmentioning

confidence: 99%

Oxygen electroreduction on carbon-supported Pd nanocubes in acid solutions

Erikson

Lüsi

Sarapuu

et al. 2016

Electrochimica Acta

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Please cite this article as: Heiki Erikson, Madis Lüsi, Ave Sarapuu, Kaido Tammeveski, Jose Solla-Gullón, Juan M.Feliu, Oxygen electroreduction on carbon-supported Pd nanocubes in acid solutions, Electrochimica Acta http://dx.doi.org/10.1016/j.electacta. 2015.11.125 This is a PDF file of an unedited manuscript that has been accepted for publication. As a service to our customers we are providing this early version of the manuscript. The manuscript will undergo copyediting, typesetting, and review of the resulting proof before it is published in its final form. Please note that during the production process errors may be discovered which could affect the content, and all legal disclaimers that apply to the journal pertain. Oxygen electroreduction on carbon-supported Pd nanocubes in acid solutions Highlights• Carbon-supported Pd nanocubes of three different size and loading were prepared• The specific activity for oxygen reduction reaction is independent of Pd content• Pd nanocubes possess higher specific activity for ORR than spherical Pd nanoparticles• The ORR on carbon-supported Pd nanocubes proceed mainly via 4-electron pathway• Tafel behaviour of ORR on carbon-supported Pd nanocubes is similar to that of bulk Pd AbstractThe oxygen reduction reaction (ORR) was studied on carbon-supported cubic palladium nanoparticles of different sizes (~30 nm, ~10 nm and ~7 nm). Cetyltrimethylammonium bromide (CTAB) and polyvinylpyrrolidone (PVP) were used as capping agents to prepare the nanocubes and Pd content in the catalyst samples was 20 and 50 wt%. The surface morphology of the prepared materials was studied by transmission electron microscopy (TEM). The catalyst materials were electrochemically characterised by cyclic voltammetry and CO stripping experiments. The rotating disk electrode (RDE) method was employed for ORR studies in 0.5 M H 2 SO 4 and 0.1 M HClO 4 solutions. The ORR results revealed that the specific activity of cubic Pd nanoparticles is higher than that of spherical Pd particles and does not depend on the Pd content in the catalyst, but decreases with decreasing the size of Pd nanocubes. Mass activity of Pd nanocubes increased with decreasing the particle size. The ORR proceeds mainly via 4-electron pathway and the reaction mechanism is similar to that on bulk Pd.

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“…carbon nanotubes, graphite oxide, and graphene) for immobilizing AChE have significant effects on the performance of biosensors [16,17]. Among them, reduced graphene oxide (RGO) is usually employed thanks to its enlarged specific surface area, good solubility, and high electrical conductivity [18,19]. Besides, it can provide a controllable non-covalent way to modulate the electronic structure to enhance the catalytic activity [20].…”

Section: Introductionmentioning

confidence: 99%

Biosensor for pesticide triazophos based on its inhibition of acetylcholinesterase and using a glassy carbon electrode modified with coral-like gold nanostructures supported on reduced graphene oxide

Feng

et al. 2015

Microchim Acta

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A nanocomposite consisting of coral-like gold nanostructures on reduced graphene oxide (RGO) was synthesized with the assistance of dimethylbiguanide (DMBG). It was then fabricated on a glassy carbon electrode, coating with cysteamine in order to enable the immobilization of acetylcholinesterase (AChE) as a model enzyme whose activity of hydrolyzing the substrate of acetylthiocholine is inhibited by the pesticide triazophos. The biosensor has response to acetylthiocholine in the 0.3~300 μM concentration range at 0.65 V (vs. SCE). The inhibition of the enzyme by triazophos can be determined in concentrations of up to 210 ppb, with a detection limit of 0.35 ppb of triazophos (S/N=3). The biosensor is highly reproducible and acceptably stable.

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Improved Pd electro-catalysis for oxygen reduction reaction in direct methanol fuel cell by reduced graphene oxide

Cited by 83 publications

References 28 publications

Carbon supported PdO with improved activity and stability for oxygen reduction reaction in alkaline solution

Carbon supported PdO with improved activity and stability for oxygen reduction reaction in alkaline solution

Oxygen electroreduction on carbon-supported Pd nanocubes in acid solutions

Biosensor for pesticide triazophos based on its inhibition of acetylcholinesterase and using a glassy carbon electrode modified with coral-like gold nanostructures supported on reduced graphene oxide

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