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Bouzek, Karel; Paidar, Martin; Sadílková, A.; Bergmann, Henry

doi:10.1023/a:1012755222981

Cited by 174 publications

(116 citation statements)

References 12 publications

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“…Three current peaks typical of a Cu cathode (see [7]) can be seen. They are labelled I Cu , II Cu and III Cu here.…”

Section: A Cu Electrodementioning

confidence: 97%

“…Due to this the experiments were carried out in a blank electrolyte solution without NO À 3 and NO À 2 ions and then in a solution with NO À 3 or NO À 2 ions present ( NO À 3 and NO À 2 experiments, respectively). A polarisation curve of the blank experiment was then subtracted from that measured in the NO À 3 or NO À 2 solution [7]. An identical procedure was used for the current response on the RE.…”

Section: Experiments At Rrdementioning

confidence: 99%

“…Many papers dealing with the electrochemical reduction of NO À 3 have been published, the majority dealing with single metal electrodes [7][8][9][10]. Recently, binary metal electrodes in the form of alloys [11,12], codeposited films [13] or electrodes with foreign adatoms on their surface [14][15][16][17][18][19][20][21] have been studied.…”

Section: Introductionmentioning

confidence: 99%

“…The best electrochemical activities for NO À 3 reduction have been observed in monometallic electrodes with a Cu [7] cathode in weakly alkaline solutions and with a Rh [8] cathode in acidic solutions. Of the binary electrodes, it is Sn/Pt [20].…”

Section: Introductionmentioning

confidence: 99%

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Electrocatalytic activity of copper alloys for $$\hbox{NO}_{3}^{-}$$ reduction in a weakly alkaline solution Part 1: Copper–zinc

Mácová

Bouzek

2005

J Appl Electrochem

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A comparative study of the influence of an addition of Zn to Cu as the basic cathode material on electrocatalytic activity for NO À 3 reduction was performed. Potentiodynamic measurements using a rotating ring-disk electrode were carried out in an artificial solution simulating solution after regeneration of the ion-exchange column for NO À 3 removal in drinking water treatment. The results were verified by batch electrolysis experiments. An enhancement of the electrocatalytic activity was observed. Unfortunately, NH 3 was found to be the main NO À 3 reduction product. The highest electrocatalytic activity was obtained using an electrode containing 41 wt.% Zn.

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“…Three current peaks typical of a Cu cathode (see [7]) can be seen. They are labelled I Cu , II Cu and III Cu here.…”

Section: A Cu Electrodementioning

confidence: 97%

Section: Experiments At Rrdementioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

See 2 more Smart Citations

Electrocatalytic activity of copper alloys for $$\hbox{NO}_{3}^{-}$$ reduction in a weakly alkaline solution Part 1: Copper–zinc

Mácová

Bouzek

2005

J Appl Electrochem

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“…Clearly, the n value benefits primarily from availability of a high density of Cusites for adsorption of NO À 3 whereas the k value benefits primarily from a high density of Ni-sites for generation of adsorbed H-atoms. Perhaps the NH 2 OH produced by the six-electron process must be desorbed with subsequent readsorption in a different configuration at an adjacent Cusite to achieve the subsequent two-electron reduction to NH 3 . As a consequence, chances for readsorption are expected to be greatly diminished when Cu-sites are completely surrounded by Ni-sites in the surfaces of the Cu 50 Ni 50 and Cu 25 Ni 75 electrodes.…”

mentioning

confidence: 99%

Electrocatalysis of Nitrate Reduction at Copper‐Nickel Alloy Electrodes in Acidic Media

Simpson

Johnson

2004

Electroanalysis

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The cathodic reduction of NO À 3 in 1.0 M HClO 4 is investigated by voltammetry at pure Ni and Cu electrodes, and three Cu-Ni alloy electrodes of varying composition, all configured as rotated disks. Voltammetric data obtained using these hydrodynamic electrodes demonstrate significantly improved activity for NO À 3 reduction at Cu-Ni alloy electrodes as compared to the pure Ni and Cu electrodes. This observation is explained on the basis of the synergistic benefit of different surface sites for adsorption of H-atoms, generated by cathodic discharge of H at Ni-sites, and adsorption of NO À 3 at Cu-sites on these binary alloy electrodes. Koutecky-Levich plots indicate that the cathodic response for NO À 3 at a Cu 75 Ni 25 electrode corresponds to an 8-electron reduction, which is consistent with production of NH 3 . In comparison, the cathodic response at Cu 50 Ni 50 and Cu 25 Ni 75 electrodes corresponds to a 6-electron reduction, which is consistent with production of NH 2 OH. Flow injection data obtained using Cu 50 Ni 50 and Cu 25 Ni 75 electrodes with 100-mL injections exhibit detection limits for NO À 3 of ca. 0.95 mM (ca. 95 pmol) and 0.60 mM (ca. 60 pmol), respectively.

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Unveiling Cutting‐Edge Developments in Electrocatalytic Nitrate‐to‐Ammonia Conversion

Zhang,

Wang,

Cao

et al. 2024

Advanced Materials

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The excessive enrichment of nitrate in the environment can be converted into ammonia (NH3) through electrochemical processes, offering significant implications for modern agriculture and the potential to reduce the burden of the Haber‐Bosch (HB) process while achieving environmentally‐friendly NH3 production. Emerging research on electrocatalytic nitrate reduction (eNitRR) to NH3 has gained considerable momentum in recent years for efficient NH3 synthesis. However, existing reviews on nitrate reduction have primarily focused on limited aspects, often lacking a comprehensive summary of catalysts, reaction systems, reaction mechanisms, and detection methods employed in nitrate reduction. This review aims to provide a timely and comprehensive analysis of the eNitRR field by integrating existing research progress and identifying current challenges. This review offers a comprehensive overview of the research progress achieved using various materials in electrochemical nitrate reduction, elucidates the underlying theoretical mechanism behind eNitRR, and discusses effective strategies based on numerous case studies to enhance the electrochemical reduction from NO3˗ to NH3. Finally, this review discusses challenges and development prospects in the eNitRR field with an aim to guide design and development of large‐scale sustainable nitrate reduction electrocatalysts.This article is protected by copyright. All rights reserved

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Untitled

Cited by 174 publications

References 12 publications

Electrocatalytic activity of copper alloys for $$\hbox{NO}_{3}^{-}$$ reduction in a weakly alkaline solution Part 1: Copper–zinc

Electrocatalytic activity of copper alloys for $$\hbox{NO}_{3}^{-}$$ reduction in a weakly alkaline solution Part 1: Copper–zinc

Electrocatalysis of Nitrate Reduction at Copper‐Nickel Alloy Electrodes in Acidic Media

Unveiling Cutting‐Edge Developments in Electrocatalytic Nitrate‐to‐Ammonia Conversion

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