Abstract
Metal aerogels have outshined themselves in electrocatalysis, however, the brittle property has constrained their intrinsic activity by the traditional drop-coating method of electrode preparation. Herein, a rapid in-situ growth strategy to obtain porous Ag aerogels on conductive carbon cloth (Ag As/CC) working as free-standing electrode was designed for electrocatalytic CO2 reduction to CO. The preserved porous network structure of Ag aerogels with hydrophobic surface effectively inhibits the competing reaction of hydrogen evolution. The CO Faraday efficiency of 99.6%, mass activityCO of 23.33 mA mg−1, and Energy efficiencyCO of 59.85% were achieved at −1.0 V vs. RHE. Ag As/CC exhibits quick charge response ability with relaxation time constant of 0.04 s, and high mass transfer with Tafel slope of 59 mV dec−1. It also worked as the cathode to drive Zn-CO2 rechargeable battery with a peak power density of 2.16mW cm−2, to achieve electrocatalytic CO2 fixation and energy storage.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.