Highly active and durable Pd nanoparticles-porous graphitic carbon nitride composite for electrocatalytic oxygen reduction reaction

Bhowmik, Tanmay; Kundu, Manas Kumar; Barman, Sudip

doi:10.1016/j.ijhydene.2016.05.295

Cited by 28 publications

(7 citation statements)

References 57 publications

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“…This composite material had high electrocatalytic activity and stability in alkaline solution, which was attributed to synergistic charge-transfer effect between Pd and g-C 3 N 4 , suitable porosity of the catalyst and uniform distribution of PdNPs. High stability of similar catalysts in perchloric acid solution has also been demonstrated, which is suggested to be the result of changing the electronic structure of Pd due to synergistic effect [72].…”

Section: Accepted Manuscriptmentioning

confidence: 92%

Recent progress in oxygen reduction electrocatalysis on Pd-based catalysts

Erikson

Sarapuu

Solla-Gullón

et al. 2016

Journal of Electroanalytical Chemistry

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Palladium-based catalysts for electrochemical reduction of oxygen have received increasing attention as potential replacement for platinum-based materials in the fuel cells. This Review summarises the research conducted with nanostructured palladium catalysts, including thin nanostructured films and Pd nanoparticles on various carbon and non-carbon supports. The mechanism of oxygen reduction on palladium is described and the effect of the particle size and shape on the electrocatalytic activity is emphasised. The role of the support material and additives on the oxygen reduction activity of Pd nanoparticles is also discussed. The electrocatalytic activity of Pd-based catalysts is evaluated in terms of specific activity and mass activity. The application of supported Pd nanoparticles as cathode catalysts for lowtemperature fuel cells is highlighted. Some insights into the remaining challenges and directions for further development of Pd-based oxygen reduction electrocatalysts are provided.

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Section: Accepted Manuscriptmentioning

confidence: 92%

Recent progress in oxygen reduction electrocatalysis on Pd-based catalysts

Erikson

Sarapuu

Solla-Gullón

et al. 2016

Journal of Electroanalytical Chemistry

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“…Recently,e merging investigationso ns ynthesis strategies for Ncontaining carbon-based electrocatalysts decorated with TM components have been reported, including electrocatalysts based on N-containing carbon nanoribbons, [51b, 100,166] nanosheets, [60,66,72,98,106,[125][126][127]167] aerogels, [77,168] spheres, [73, 134f,i, 169] and other structures. [134l, 141, 170] Wang and co-workers use carbon black to construct ac omposite structure to support PtRu alloys.…”

Section: Supporting Matricesmentioning

confidence: 99%

Stable and Efficient Nitrogen‐Containing Carbon‐Based Electrocatalysts for Reactions in Energy‐Conversion Systems

et al. 2018

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High activity and stability are crucial for the practical use of electrocatalysts in fuel cells, metal-air batteries, and water electrolysis, including the oxygen reduction reaction, hydrogen evolution reaction, oxygen evolution reaction, and oxidation reactions of formic acid and alcohols. Electrocatalysts based on nitrogen-containing carbon (N-C) materials show promise in catalyzing these reactions; however, there is no systematic review of strategies for the engineering of active and stable N-C-based electrocatalysts. Herein, a comprehensive comparison of recently reported N-C-based electrocatalysts regarding both electrocatalytic activity and long-term stability is presented. In the first part of this review, the relationships between the electrocatalytic reactions and selection of the element to modify the N-C-based materials are discussed. Afterwards, synthesis methods for N-C-based electrocatalysts are summarized, and strategies for the synthesis of highly stable N-C-based electrocatalysts are presented. Multiple tables containing data on crucial parameters for both electrocatalytic activity and stability are displayed in this review. Finally, constructing M-N moieties is proposed as the most promising engineering strategy for stable N-C-based electrocatalysts.

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“…Regarding the active material, palladium has attracted attention as a promising ORR catalyst for its greater abundance than Pt and comparable properties, with the same crystal structure and group of the periodic table as Pt [ 1 ]. One of the efficient ways to improve its catalytic property and reduce its price is alloying Pd with other elements by rearranging the electronic structure, which is called the ensemble effect [ 2 ].…”

Section: Introductionmentioning

confidence: 99%

Nitrogen-Doped Reduced Graphene Oxide Supported Pd4.7Ru Nanoparticles Electrocatalyst for Oxygen Reduction Reaction

Park

Varyambath

et al. 2021

Nanomaterials

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It is imperative to design an inexpensive, active, and durable electrocatalyst in oxygen reduction reaction (ORR) to replace carbon black supported Pt (Pt/CB). In this work, we synthesized Pd4.7Ru nanoparticles on nitrogen-doped reduced graphene oxide (Pd4.7Ru NPs/NrGO) by a facile microwave-assisted method. Nitrogen atoms were introduced into the graphene by thermal reduction with NH3 gas and several nitrogen atoms, such as pyrrolic, graphitic, and pyridinic N, found by X-ray photoelectron spectroscopy. Pyridinic nitrogen atoms acted as efficient particle anchoring sites, making strong bonding with Pd4.7Ru NPs. Additionally, carbon atoms bonding with pyridinic N facilitated the adsorption of O2 as Lewis bases. The uniformly distributed ~2.4 nm of Pd4.7Ru NPs on the NrGO was confirmed by transmission electron microscopy. The optimal composition between Pd and Ru is 4.7:1, reaching −6.33 mA/cm2 at 0.3 VRHE for the best ORR activity among all measured catalysts. Furthermore, accelerated degradation test by electrochemical measurements proved its high durability, maintaining its initial current density up to 98.3% at 0.3 VRHE and 93.7% at 0.75 VRHE, whereas other catalysts remained below 90% at all potentials. These outcomes are considered that the doped nitrogen atoms bond with the NPs stably, and their electron-rich states facilitate the interaction with the reactants on the surface. In conclusion, the catalyst can be applied to the fuel cell system, overcoming the high cost, activity, and durability issues.

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Highly active and durable Pd nanoparticles-porous graphitic carbon nitride composite for electrocatalytic oxygen reduction reaction

Cited by 28 publications

References 57 publications

Recent progress in oxygen reduction electrocatalysis on Pd-based catalysts

Recent progress in oxygen reduction electrocatalysis on Pd-based catalysts

Stable and Efficient Nitrogen‐Containing Carbon‐Based Electrocatalysts for Reactions in Energy‐Conversion Systems

Nitrogen-Doped Reduced Graphene Oxide Supported Pd4.7Ru Nanoparticles Electrocatalyst for Oxygen Reduction Reaction

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