Peroxide-Driven Nitrogen Fixation Reactions for Energy Storage Applications

Kód výsledku v 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>

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

Peroxide-Driven Nitrogen Fixation Reactions for Energy Storage Applications

Popis výsledku v původním jazyce

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-$rm{NO}_{3}&lt;^&gt;{-}$) 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-$rm{NO}_{3}&lt;^&gt;{-}$ 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.

Název v anglickém jazyce

Peroxide-Driven Nitrogen Fixation Reactions for Energy Storage Applications

Popis výsledku anglicky

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-$rm{NO}_{3}&lt;^&gt;{-}$) 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-$rm{NO}_{3}&lt;^&gt;{-}$ 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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10405 - Electrochemistry (dry cells, batteries, fuel cells, corrosion metals, electrolysis)

Projekt

<a href="/cs/project/EH22_008%2F0004572" target="_blank" >EH22_008/0004572: Kvantové materiály pro aplikace v udržitelných technologiích</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Advanced Energy Materials

ISSN

1614-6832

e-ISSN

1614-6840

Svazek periodika

15

Číslo periodika v rámci svazku

32

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

15

Strana od-do

nestránkováno

Kód UT WoS článku

001506206600001

EID výsledku v databázi Scopus

2-s2.0-105007784017