Peroxide-Driven Nitrogen Fixation Reactions for Energy Storage Applications
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F49777513%3A23640%2F25%3A43976439" target="_blank" >RIV/49777513:23640/25:43976439 - isvavai.cz</a>
Result on the web
<a href="https://doi.org/10.1002/aenm.202501583" target="_blank" >https://doi.org/10.1002/aenm.202501583</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1002/aenm.202501583" target="_blank" >10.1002/aenm.202501583</a>
Alternative languages
Result language
angličtina
Original language name
Peroxide-Driven Nitrogen Fixation Reactions for Energy Storage Applications
Original language description
Electrochemical nitrogen fixation offers a sustainable and environmentally friendly alternative to conventional ammonia synthesis, yet it currently faces significant challenges in terms of energy efficiency, catalytic activity, and economic feasibility. Here, this work presents a novel peroxide-mediated dual-step strategy designed to efficiently address these challenges using advanced energy materials. Ruthenium oxide and cobalt phthalocyanine catalysts facilitate simultaneous hydrogen peroxide formation and nitrogen oxidation to nitrate (NO3-$rm{NO}_{3}<^>{-}$) at an exceptionally low potential of 0.1 V versus RHE, achieving a nitrate yield of 71.1 +/- 4.2 mu g h-(1) cm-2 and a Faradaic efficiency (FE) of 2.1 +/- 0.4%. Subsequently, the in situ generated NO3-$rm{NO}_{3}<^>{-}$ is electrochemically reduced to ammonia (NH3) at -0.35 V, delivering an impressive NH3 yield of 147.2 +/- 13.7 mu g h-(1) cm-2 with 13.8 +/- 1.7% FE. This combined approach significantly outperforms traditional direct electrochemical nitrogen reduction methods, enhancing ammonia yield approximate to 30-fold. Furthermore, a detailed techno-economic analysis demonstrates substantial economic advantages, significantly reducing ammonia production costs compared to direct nitrogen reduction. Although this system remains somewhat more expensive than direct nitrate reduction, the latter faces inherent challenges such as limited substrate availability and preprocessing requirements. This work advances sustainable ammonia synthesis by introducing a highly effective catalytic strategy integrated with meaningful energy and economic considerations.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)
Result continuities
Project
<a href="/en/project/EH22_008%2F0004572" target="_blank" >EH22_008/0004572: Quantum materials for applications in sustainable technologies</a><br>
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Advanced Energy Materials
ISSN
1614-6832
e-ISSN
1614-6840
Volume of the periodical
15
Issue of the periodical within the volume
32
Country of publishing house
DE - GERMANY
Number of pages
15
Pages from-to
nestránkováno
UT code for WoS article
001506206600001
EID of the result in the Scopus database
2-s2.0-105007784017