Steering CO2 electroreduction toward ethanol production by a surface-bound Ru polypyridyl carbene catalyst on N-doped porous carbon
Electrochemical reduction of CO2 to multicarbon products is a significant challenge, especially for molecular complexes. We report here CO2 reduction to multicarbon products based on a Ru(II) polypyridyl carbene complex that is immobilized on an N-doped porous carbon (RuPC/NPC) electrode. The catalyst utilizes the synergistic effects of the Ru(II) polypyridyl carbene complex and the NPC interface to steer CO2 reduction toward C2 production at low overpotentials. In 0.5 M KHCO3/CO2 aqueous solutions, Faradaic efficiencies of 31.0 to 38.4% have been obtained for C2 production at -0.87 to -1.07 V (vs. normal hydrogen electrode) with 21.0 to 27.5% for ethanol and 7.1 to 12.5% for acetate. Syngas is also produced with adjustable H2/CO mole ratios of 2.0 to 2.9. The RuPC/NPC electrocatalyst maintains its activity during 3-h CO2-reduction periods.
| Medienart: |
E-Artikel |
|---|
| Erscheinungsjahr: |
2019 |
|---|---|
| Erschienen: |
2019 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:116 |
|---|---|
| Enthalten in: |
Proceedings of the National Academy of Sciences of the United States of America - 116(2019), 52 vom: 26. Dez., Seite 26353-26358 |
| Sprache: |
Englisch |
|---|
| Beteiligte Personen: |
Liu, Yanming [VerfasserIn] |
|---|
| Links: |
|---|
| Themen: |
CO2 reduction |
|---|
| Anmerkungen: |
Date Revised 05.12.2022 published: Print-Electronic Citation Status PubMed-not-MEDLINE |
|---|
| doi: |
10.1073/pnas.1907740116 |
|---|
| funding: |
|
|---|---|
| Förderinstitution / Projekttitel: |
|
| PPN (Katalog-ID): |
NLM304239968 |
|---|
| LEADER | 01000naa a22002652 4500 | ||
|---|---|---|---|
| 001 | NLM304239968 | ||
| 003 | DE-627 | ||
| 005 | 20231225114551.0 | ||
| 007 | cr uuu---uuuuu | ||
| 008 | 231225s2019 xx |||||o 00| ||eng c | ||
| 024 | 7 | |a 10.1073/pnas.1907740116 |2 doi | |
| 028 | 5 | 2 | |a pubmed24n1014.xml |
| 035 | |a (DE-627)NLM304239968 | ||
| 035 | |a (NLM)31822615 | ||
| 040 | |a DE-627 |b ger |c DE-627 |e rakwb | ||
| 041 | |a eng | ||
| 100 | 1 | |a Liu, Yanming |e verfasserin |4 aut | |
| 245 | 1 | 0 | |a Steering CO2 electroreduction toward ethanol production by a surface-bound Ru polypyridyl carbene catalyst on N-doped porous carbon |
| 264 | 1 | |c 2019 | |
| 336 | |a Text |b txt |2 rdacontent | ||
| 337 | |a ƒaComputermedien |b c |2 rdamedia | ||
| 338 | |a ƒa Online-Ressource |b cr |2 rdacarrier | ||
| 500 | |a Date Revised 05.12.2022 | ||
| 500 | |a published: Print-Electronic | ||
| 500 | |a Citation Status PubMed-not-MEDLINE | ||
| 520 | |a Electrochemical reduction of CO2 to multicarbon products is a significant challenge, especially for molecular complexes. We report here CO2 reduction to multicarbon products based on a Ru(II) polypyridyl carbene complex that is immobilized on an N-doped porous carbon (RuPC/NPC) electrode. The catalyst utilizes the synergistic effects of the Ru(II) polypyridyl carbene complex and the NPC interface to steer CO2 reduction toward C2 production at low overpotentials. In 0.5 M KHCO3/CO2 aqueous solutions, Faradaic efficiencies of 31.0 to 38.4% have been obtained for C2 production at -0.87 to -1.07 V (vs. normal hydrogen electrode) with 21.0 to 27.5% for ethanol and 7.1 to 12.5% for acetate. Syngas is also produced with adjustable H2/CO mole ratios of 2.0 to 2.9. The RuPC/NPC electrocatalyst maintains its activity during 3-h CO2-reduction periods | ||
| 650 | 4 | |a Journal Article | |
| 650 | 4 | |a CO2 reduction | |
| 650 | 4 | |a Ru(II) polypyridyl complex | |
| 650 | 4 | |a electrocatalysis | |
| 650 | 4 | |a porous carbon | |
| 700 | 1 | |a Fan, Xinfei |e verfasserin |4 aut | |
| 700 | 1 | |a Nayak, Animesh |e verfasserin |4 aut | |
| 700 | 1 | |a Wang, Ying |e verfasserin |4 aut | |
| 700 | 1 | |a Shan, Bing |e verfasserin |4 aut | |
| 700 | 1 | |a Quan, Xie |e verfasserin |4 aut | |
| 700 | 1 | |a Meyer, Thomas J |e verfasserin |4 aut | |
| 773 | 0 | 8 | |i Enthalten in |t Proceedings of the National Academy of Sciences of the United States of America |d 1915 |g 116(2019), 52 vom: 26. Dez., Seite 26353-26358 |w (DE-627)NLM000008982 |x 1091-6490 |7 nnns |
| 773 | 1 | 8 | |g volume:116 |g year:2019 |g number:52 |g day:26 |g month:12 |g pages:26353-26358 |
| 856 | 4 | 0 | |u http://dx.doi.org/10.1073/pnas.1907740116 |3 Volltext |
| 912 | |a GBV_USEFLAG_A | ||
| 912 | |a GBV_NLM | ||
| 951 | |a AR | ||
| 952 | |d 116 |j 2019 |e 52 |b 26 |c 12 |h 26353-26358 | ||