Abstract
Ceria was deposited onto boron doped polycrystalline diamond (BDD) cathodes, through electrochemically induced precipitation from nitrate-based solutions. The deposits were characterized using SEM-EDS, HRTEM, XRD and XPS. The morphology, thickness and composition of ceria films, which besides CeO2 contained Ce(OH)3 when prepared at very negative potential, were controlled by tuning the deposition parameters. Thin Ce(OH)3-free ceria films allowed CO2 electrochemical reduction at overpotentials below 50 mV, yielding formic acid with faradaic yield higher than 40% and stable performance for many hours. Ceria seemed to act as a co-catalyst that activated CO2 for reduction at the H-terminated BDD surface, because comparable results were not obtained with ceria-coated glassy carbon electrodes.
| Original language | English |
|---|---|
| Pages (from-to) | 17896-17905 |
| Number of pages | 10 |
| Journal | Journal of Materials Chemistry A |
| Volume | 7 |
| Issue number | 30 |
| DOIs | |
| Publication status | Published - 2019 Jan 1 |
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ASJC Scopus subject areas
- Chemistry(all)
- Renewable Energy, Sustainability and the Environment
- Materials Science(all)
Cite this
CO2 reduction to formic acid at low overpotential on BDD electrodes modified with nanostructured CeO2. / Verlato, Enrico; Barison, Simona; Einaga, Yasuaki; Fasolin, Stefano; Musiani, Marco; Nasi, Lucia; Natsui, Keisuke; Paolucci, Francesco; Valenti, Giovanni.
In: Journal of Materials Chemistry A, Vol. 7, No. 30, 01.01.2019, p. 17896-17905.Research output: Contribution to journal › Article
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TY - JOUR
T1 - CO2 reduction to formic acid at low overpotential on BDD electrodes modified with nanostructured CeO2
AU - Verlato, Enrico
AU - Barison, Simona
AU - Einaga, Yasuaki
AU - Fasolin, Stefano
AU - Musiani, Marco
AU - Nasi, Lucia
AU - Natsui, Keisuke
AU - Paolucci, Francesco
AU - Valenti, Giovanni
PY - 2019/1/1
Y1 - 2019/1/1
N2 - Ceria was deposited onto boron doped polycrystalline diamond (BDD) cathodes, through electrochemically induced precipitation from nitrate-based solutions. The deposits were characterized using SEM-EDS, HRTEM, XRD and XPS. The morphology, thickness and composition of ceria films, which besides CeO2 contained Ce(OH)3 when prepared at very negative potential, were controlled by tuning the deposition parameters. Thin Ce(OH)3-free ceria films allowed CO2 electrochemical reduction at overpotentials below 50 mV, yielding formic acid with faradaic yield higher than 40% and stable performance for many hours. Ceria seemed to act as a co-catalyst that activated CO2 for reduction at the H-terminated BDD surface, because comparable results were not obtained with ceria-coated glassy carbon electrodes.
AB - Ceria was deposited onto boron doped polycrystalline diamond (BDD) cathodes, through electrochemically induced precipitation from nitrate-based solutions. The deposits were characterized using SEM-EDS, HRTEM, XRD and XPS. The morphology, thickness and composition of ceria films, which besides CeO2 contained Ce(OH)3 when prepared at very negative potential, were controlled by tuning the deposition parameters. Thin Ce(OH)3-free ceria films allowed CO2 electrochemical reduction at overpotentials below 50 mV, yielding formic acid with faradaic yield higher than 40% and stable performance for many hours. Ceria seemed to act as a co-catalyst that activated CO2 for reduction at the H-terminated BDD surface, because comparable results were not obtained with ceria-coated glassy carbon electrodes.
UR - http://www.scopus.com/inward/record.url?scp=85070088366&partnerID=8YFLogxK
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U2 - 10.1039/c9ta01000a
DO - 10.1039/c9ta01000a
M3 - Article
VL - 7
SP - 17896
EP - 17905
JO - Journal of Materials Chemistry A
JF - Journal of Materials Chemistry A
SN - 2050-7488
IS - 30
ER -