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Efficient Electrochemical Production of Syngas from CO2and H2O by using a Nanostructured Ag/g-C3N4Catalyst
- Source :
- ChemElectroChem. 3:1497-1502
- Publication Year :
- 2016
- Publisher :
- Wiley, 2016.
-
Abstract
- A new series of electrocatalysts consisting of Ag nanoparticles supported on graphitic carbon nitride (g-C3N4) are presented. The combination of nanostructured silver and a carbon nitride support results in the direct generation of synthesis gas (CO+H2) during the electrocatalytic reduction of CO2 in water. By using a state-of-the-art electrocatalytic setup, the influence of different operation parameters over the final product composition is shown. The H2/CO product ratio can easily be tuned from 100:1 to 2:1 with high reproducibility by controlling the applied potential and the Ag loading. More importantly, long-term and catalyst reuse experiments demonstrate the robustness of these electrodes, which could be operated for over 20 h time on stream and reused several times without any evident loss of activity or selectivity. Our results highlight the potential of nanostructuring Ag-based catalysts and the relevance of the selected support for the green valorization of CO2.
- Subjects :
- Materials science
Inorganic chemistry
Graphitic carbon nitride
02 engineering and technology
010402 general chemistry
021001 nanoscience & nanotechnology
Electrochemistry
Electrocatalyst
01 natural sciences
Catalysis
0104 chemical sciences
chemistry.chemical_compound
chemistry
Electrode
0210 nano-technology
Selectivity
Carbon nitride
Syngas
Subjects
Details
- ISSN :
- 21960216
- Volume :
- 3
- Database :
- OpenAIRE
- Journal :
- ChemElectroChem
- Accession number :
- edsair.doi...........93b48798734dfd23176f8cfddb2962d8