Investigation of a Cu/Pd Bimetallic System Electrodeposited on Boron-Doped Diamond Films for Application in Electrocatalytic Reduction of Nitrate

Matsushima, Jorge Tadao; Fernandes, V. C.; Couto, Andréa Boldarini; Baldan, Maurício Ribeiro; Ferreira, N.G.

doi:10.1155/2012/213420

Cited by 9 publications

(7 citation statements)

References 43 publications

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“…The highest N 2 FE is 60–70%, demonstrated on CuPd bimetallic catalysts. 99 The formation of ammonia as a byproduct compromises the dinitrogen efficiency and decreases the feasibility of practical use. Combining ammonia oxidation to nitrate with nitrate reduction offers the possibility to remove the undesirable ammonia byproduct, achieving a NO 3 – removal efficiency of 82.1% with 81.3% Faradaic efficiency toward N 2 .…”

Section: Electrochemical N 2 Cyclementioning

confidence: 99%

Emerging Electrochemical Processes to Decarbonize the Chemical Industry

Rong

Overa

Jiao

2022

JACS Au

102

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Electrification is a potential approach to decarbonizing the chemical industry. Electrochemical processes, when they are powered by renewable electricity, have lower carbon footprints in comparison to conventional thermochemical routes. In this Perspective, we discuss the potential electrochemical routes for chemical production and provide our views on how electrochemical processes can be matured in academic research laboratories for future industrial applications. We first analyze the CO 2 emission in the manufacturing industry and conduct a survey of state of the art electrosynthesis methods in the three most emission-intensive areas: petrochemical production, nitrogen compound production, and metal smelting. Then, we identify the technical bottlenecks in electrifying chemical productions from both chemistry and engineering perspectives and propose potential strategies to tackle these issues. Finally, we provide our views on how electrochemical manufacturing can reduce carbon emissions in the chemical industry with the hope to inspire more research efforts in electrifying chemical manufacturing.

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Section: Electrochemical N 2 Cyclementioning

confidence: 99%

Emerging Electrochemical Processes to Decarbonize the Chemical Industry

Rong

Overa

Jiao

2022

JACS Au

102

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“…94−96 In 2012, Matsushima et al evaluated the NO 3 RR performance of Cu, Pd, and Cu−Pd bimetallic systems in Britton-Robinson buffer solution (pH 9). 94 For Cu−Pd bimetallic systems, different ratios of 1:1, 5:1, and 10:1 in Cu/Pd were used. They observed an enhanced activity with the increase of Cu content in the Cu−Pd systems.…”

Section: Recent Development Of Electrocatalystsmentioning

confidence: 99%

Powering the Remediation of the Nitrogen Cycle: Progress and Perspectives of Electrochemical Nitrate Reduction

Min

Gao

Yan

et al. 2021

Ind. Eng. Chem. Res.

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Nitrate pollution in surface and ground waters has become a potent threat to ecosystem and human health. Electrochemical nitrate reduction is a promising strategy to directly convert excessive nitrates in water into environmentally benign dinitrogen gas or value-added chemicals such as ammonia under mild conditions. Once coupled with renewable electricity, it represents an eco-friendly and energy-efficient route for the recirculation of nitrogen species into the nitrogen cycle and economy. Understanding fundamental mechanisms of nitrate reduction is therefore crucial to design and develop high-performing electrocatalysts. In this review, we first discuss recent discoveries of reaction mechanisms for electrochemical nitrate reduction, focusing on the various pathways to desirable products (nitrogen and ammonia). The direct electron transfer and atom hydrogen transfer pathways are discussed in detail. We then summarize and discuss recent advances in catalytic materials spanning the material space from precious metal, nonprecious metal, and nonmetal catalysts. The existing challenges of electrochemical nitrate reduction are also highlighted. Finally, we provide the perspectives of the opportunities and outlook for the future development in electrochemical nitrate reduction.

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“…Thus, the most effective materials for this treatment are the noble metals such as; platinum, 23 lead, 24 nickel. 25,26 Moreover, certain transition metals have presented an important activity for these reductions such as; copper 27,28 and their alloys with palladium (Pd-Cu), 27,29,30 some of which are very active in acidic medium.…”

Section: Introduction *mentioning

confidence: 99%

“…The selection of these materials is related to their availability, electroactivity, non passivity in the nitrites and nitrates reduction ranges and their effectiveness without production of harmful products. The use of our selected materials is beneficial compared to that studied in previous researches, such as; noble metals 23,26 and alloys 27,29 that required a post fabrication, several chemical reagents for their treatments and the high costs of the raw materials.…”

Section: Introduction *mentioning

confidence: 99%

Electrocatalytic activity survey of some cathode materials for the reduction of nitrites and nitrates in aqueous solution

Angar¹,

Daoudi²,

Kebbouche-Gana³

et al. 2021

Rev.Roum.Chim.

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The electrochemical techniques are the subject of increasing interest on the environmental remediation methods thanks to their efficiency and their selectivity. It was classified among the cleanest methods because it does not produce sludge and undesirable intermediate byproducts. For these reasons, we have chosen this technology for the reduction of nitrites and nitrates ions from aqueous solutions. The objective of our study is the comparison of several cathodes materials performances, in order to promote an optimal electro-reduction of these ions. Indeed, we have used the copper, graphite, stainless steel and zinc as cathodes; among them, we have selected the most efficient on which we have optimized the operational conditions. The results suggested that the copper cathode was the most efficient for the reduction of both tested ions compared to the other tested materials. Therefore, the optimization of operational conditions allows us to fixed them at: scan rate=50mV/s, initial effluent concentration=100 mg/L, pH=7 and potential range of the cyclic voltammetry scanning of [-1,+1]V/SCE for both ions. Under these optimal parameters, the reduction yield after 45min was important that can achieve 96.5% and 99% for nitrites and nitrates respectively.

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Investigation of a Cu/Pd Bimetallic System Electrodeposited on Boron-Doped Diamond Films for Application in Electrocatalytic Reduction of Nitrate

Cited by 9 publications

References 43 publications

Emerging Electrochemical Processes to Decarbonize the Chemical Industry

Emerging Electrochemical Processes to Decarbonize the Chemical Industry

Powering the Remediation of the Nitrogen Cycle: Progress and Perspectives of Electrochemical Nitrate Reduction

Electrocatalytic activity survey of some cathode materials for the reduction of nitrites and nitrates in aqueous solution

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