Metal-doping induced catalytic suitability of CoWO4@3D-printed electrode for nitrate reduction coupled glycerol oxidation
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216305%3A26620%2F26%3A0201799" target="_blank" >RIV/00216305:26620/26:0201799 - isvavai.cz</a>
Result on the web
<a href="https://www.sciencedirect.com/science/article/pii/S0926337326002225?getft_integrator=clarivate&pes=vor&utm_source=clarivate" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0926337326002225?getft_integrator=clarivate&pes=vor&utm_source=clarivate</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1016/j.apcatb.2026.126602" target="_blank" >10.1016/j.apcatb.2026.126602</a>
Alternative languages
Result language
angličtina
Original language name
Metal-doping induced catalytic suitability of CoWO4@3D-printed electrode for nitrate reduction coupled glycerol oxidation
Original language description
Multimetallic site engineering is emerging as a powerful strategy to regulate electronic structure and reaction pathways in complex multielectron electrocatalytic systems, such as electrocatalytic nitrate reduction. Here, we report the rational design of transition metal-doped CoWO4 (M-CoWO4, M = Cu, Fe, Ni) integrated into 3D-printed octet lattice electrodes for the electrochemical conversion of nitrate to ammonia (NO3--to-NH3) coupled glycerol oxidation (GOR). Systematic experiments, in situ Raman analysis and density functional theory calculations reveal that metal doping modulates the electronic environment around active sites through charge redistribution, thereby tuning intermediate adsorption and catalytic performance. Cu doping enhances NOx(-) adsorption and lowers the energy barrier for sequential protonation steps, accounting for the superior ammonia production rate (similar to 2 mmol cm(-2) h(-1)) and high Faradaic efficiency (95 %). By contrast, Fe doping preferentially enhances oxidative catalysis, including OER and GOR. In a full-cell configuration, GOR-coupled nitrate reduction decreases power consumption by similar to 22 % and boosts NH3 yield rate by 2.5-fold relative to the conventional NITRR||OER system. This study reveals that strategic metal doping in CoWO4 tunes its electronic structure to promote energy-efficient NO3--to-NH3 conversion coupled with glycerol oxidation, offering a sustainable pathway toward green ammonia production.
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
21000 - Nano-technology
Result continuities
Project
Result was created during the realization of more than one project. More information in the Projects tab.
Continuities
P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)
Others
Publication year
2026
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Applied catalysis. B, Environmental
ISSN
0926-3373
e-ISSN
1873-3883
Volume of the periodical
391
Issue of the periodical within the volume
August
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
12
Pages from-to
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UT code for WoS article
001722418300001
EID of the result in the Scopus database
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