Planned intervention: On Wednesday April 3rd 05:30 UTC Zenodo will be unavailable for up to 2-10 minutes to perform a storage cluster upgrade.
Published January 9, 2023 | Version v1
Journal article Open

Facile and scalable synthesis of Cu2O-SnO2 catalyst for the photoelectrochemical CO2 conversion

  • 1. CREST group, Department of Applied Science and Technology (DISAT), Politecnico di Torino
  • 2. Center for Sustainable Future Technologies, IIT@Polito, Istituto Italiano di Tecnologia
  • 3. Department of Applied Science and Technology (DISAT), Politecnico di Torino

Description

CO2 conversion into high-value-added products is becoming increasingly attractive to find substitutes for fossil-based ones and tackle the environmental crisis. Herein, a noble, simple, reproducible, and scalable Cu2O-SnO2 photo-electrocatalyst was synthesized and characterized. Coupling cuprous oxide with tin oxide allowed for protecting unstable Cu+1 species from photo-corrosion. Evidence of the SnO2 stabilization role were found via chronoamperometry tests under chopped light and XPS analysis. An optimized catalytic ink was developed to prepare the photocathodes. The CO2 photo-electroreduction tests demonstrated a prevalent production of CO and formate with Faradaic efficiencies of 35.47 % and 19.58 %, respectively, and a good system stability. Sunlight illumination demonstrated to play a major role to hinder H2 evolution and promote ≥C1+ products formation.

Files

1-s2.0-S0920586122004874-main.pdf

Files (2.9 MB)

Name Size Download all
md5:77c749bea30182d6bca64543d1d18576
2.9 MB Preview Download

Additional details

Funding

SunCoChem – Photoelectrocatalytic device for SUN-driven CO2 conversion into green CHEMicals 862192
European Commission