Print Email Facebook Twitter Effect of peptide aerogel composite on silver nanoparticles as a catalyst for electrochemical CO2 reduction Title Effect of peptide aerogel composite on silver nanoparticles as a catalyst for electrochemical CO2 reduction Author Rashid, Roomina (University of Toronto) Abdinejad, M. (TU Delft ChemE/Materials for Energy Conversion and Storage) Motlagh, Mozhgan Khorasani (University of Toronto) Noroozifar, Meissam (University of Toronto) Kraatz, Heinz Bernhard (University of Toronto) Date 2023 Abstract Electrochemical reduction of carbon dioxide (CO2RR) product distribution has been found to be dependent on several key factors, such as catalyst surface morphology, stability, and porosity. Metal-modified carbon-based materials have received a lot of attention in CO2RR. However, designing a highly active metal carbon catalyst for CO2RR utilizing low-cost chemical precursors remains a challenge. Here, a series of myristic acid-Phe-Phe peptide (MA-FF) aerogel materials containing graphene oxide (Gox) and Ag nanoparticles have been prepared for electrochemical CO2RR. The morphologies of the composites were studied by scanning electron microscopy (SEM), and their surface compositions were determined using X-ray photoelectron spectroscopy (XPS). While the peptide aerogel alone showed no catalytic activity for CO2 electroreduction, the addition of Ag nanoparticles results in a Faradaic efficiency (FE) of 46% for electroreduction of CO2 to CO at an overpotential of − 0.8 V vs. RHE. Incorporation of Gox in the aerogel increases the FE to 88% and allows CO2 reduction at a lower overpotential of − 0.7 V vs. RHE. Using highly porous peptide aerogels-Gox in addition to the metal active center provides an enhanced and new method for CO2 conversion using low environmental impact bio-based aerogels. Subject AerogelCO electroreductionGraphene oxidePeptideSilver To reference this document use: http://resolver.tudelft.nl/uuid:e2cfdb6c-4a61-4461-8470-d0c686d54c64 DOI https://doi.org/10.1016/j.jece.2023.110567 Embargo date 2024-01-17 ISSN 2213-2929 Source Journal of Environmental Chemical Engineering, 11 (5) Bibliographical note Green Open Access added to TU Delft Institutional Repository ‘You share, we take care!’ – Taverne project https://www.openaccess.nl/en/you-share-we-take-care Otherwise as indicated in the copyright section: the publisher is the copyright holder of this work and the author uses the Dutch legislation to make this work public. Part of collection Institutional Repository Document type journal article Rights © 2023 Roomina Rashid, M. Abdinejad, Mozhgan Khorasani Motlagh, Meissam Noroozifar, Heinz Bernhard Kraatz Files PDF 1_s2.0_S2213343723013064_main.pdf 4.47 MB Close viewer /islandora/object/uuid:e2cfdb6c-4a61-4461-8470-d0c686d54c64/datastream/OBJ/view