Copper (Cu)-based materials for efficient CO2 conversion to adjustable syngas are reported. We employ an energy-efficient microwave-assisted route to synthesize copper/copper oxides with different structures and morphologies. The initial oxidation state of the copper on the surface significantly influences the performance of the materials in the CO2 reduction reaction (CO2RR). On the as-prepared material surface, a high content of Cu2O improves the selectivity toward CO and consequently the catalyzed CO2RR produce a syngas with a low H2/CO ratio, while the CuO performs poorly. In particular, Cu2O particles with a cubic shape show the highest selectivity for the CO formation. The superior catalytic activity of the Cu2O cubes for the CO2RR is attributed to the surface roughening under potential, which offers abundant electrochemically active sites and facilitates mass transport.

Microwave-Assisted Synthesis of Copper-Based Electrocatalysts for Converting Carbon Dioxide to Tunable Syngas / Zeng, J.; Bejtka, K.; Di Martino, G.; Sacco, A.; Castellino, M.; Re Fiorentin, M.; Risplendi, F.; Farkhondehfal, M. A.; Hernandez, S.; Cicero, G.; Pirri, C. F.; Chiodoni, A.. - In: CHEMELECTROCHEM. - ISSN 2196-0216. - ELETTRONICO. - 7:1(2020), pp. 229-238. [10.1002/celc.201901730]

Microwave-Assisted Synthesis of Copper-Based Electrocatalysts for Converting Carbon Dioxide to Tunable Syngas

Zeng J.;Bejtka K.;Sacco A.;Castellino M.;Re Fiorentin M.;Risplendi F.;Hernandez S.;Cicero G.;Pirri C. F.;Chiodoni A.
2020

Abstract

Copper (Cu)-based materials for efficient CO2 conversion to adjustable syngas are reported. We employ an energy-efficient microwave-assisted route to synthesize copper/copper oxides with different structures and morphologies. The initial oxidation state of the copper on the surface significantly influences the performance of the materials in the CO2 reduction reaction (CO2RR). On the as-prepared material surface, a high content of Cu2O improves the selectivity toward CO and consequently the catalyzed CO2RR produce a syngas with a low H2/CO ratio, while the CuO performs poorly. In particular, Cu2O particles with a cubic shape show the highest selectivity for the CO formation. The superior catalytic activity of the Cu2O cubes for the CO2RR is attributed to the surface roughening under potential, which offers abundant electrochemically active sites and facilitates mass transport.
2020
File in questo prodotto:
File Dimensione Formato  
Microwave-Assisted Synthesis of Copper-BasedElectrocatalysts for Converting Carbon Dioxide to TunableSyngas (CEC_Zeng 2020).pdf

non disponibili

Descrizione: Editorial Version
Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 5.57 MB
Formato Adobe PDF
5.57 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Microwave-Assisted Synthesis of Copper-BasedElectrocatalysts for Converting Carbon Dioxide to TunableSyngas (CEC_Zeng 2020)_SI.pdf

accesso aperto

Descrizione: Editorial version
Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Creative commons
Dimensione 1.73 MB
Formato Adobe PDF
1.73 MB Adobe PDF Visualizza/Apri
Pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2851505