4 days ago · Electrochemical CO2 capture is hindered by the oxidation of redox-active organic molecules by O2, affecting energy efficiency and capacity. Here the authors develop a flow cell
Feb 26, 2020 · Existing metal–CO2 batteries generally work in a closed system by recycling CO2. In this study, a flow battery is designed with a hollow fiber of carbon nanotubes (cathode), Zn
Oct 8, 2022 · In 2021, the Zn–CO 2 flow battery with the capability of selectively converting CO2 into CO was assembled by using carbon nanotube supported Cu as the catalyst cathode [35].
Jan 5, 2020 · 现有的金属- CO2电池通常在一个封闭的系统中通过回收二氧化碳来工作。 而近日,嘉兴学院曹雪波、Li Gu和常州大学胡静等人报道了一种由碳
The flow battery based on the tubular CNTs@Cu cathode can convert CO 2 into CH 4 with a faradaic efficiency of up to 93.3%. Concurrently, electricity is generated at an energy density of 376 Wh kg −1. This battery remains stable for more than 18 days.
2.9. CO 2 redox flow battery (CRB) In order to demonstrate the polarization behavior of the CO 2 redox battery a preliminary cell design was used with continuous flow of CO 2 gas to GDE coupled with batch liquid electrolytes, negolyte and posolyte, respectively (Figs. 5 and S13, Supplementary Information).
Among metal-CO 2 batteries, aqueous Zn–CO 2 batteries, especially rechargeable systems, exhibit flexible CO 2 electrochemistry in terms of multi-carbon chemicals, which are gaseous or water-soluble, in favor of rechargeability and cycling durability of aqueous battery systems.
A new wave of electrochemical technologies proposed recently is focused on the utilization of CO 2 in primary and secondary (rechargeable) batteries [, , ]. In this pathway, CO 2 either alone or in combination with other species (e.g., O 2) is an electroactive species in the battery.
Interestingly, CO 2 conversion with quite high selectivity could be realized over the different cathodes in these two Zn–CO 2 flow batteries. These two batteries exhibit the advantages of high operating voltages, excellent stability, and continuous and selective product outputs.
These two batteries exhibit the advantages of high operating voltages, excellent stability, and continuous and selective product outputs. The flow battery based on the tubular CNTs@Cu cathode can convert CO 2 into CH 4 with a faradaic efficiency of up to 93.3%. Concurrently, electricity is generated at an energy density of 376 Wh kg −1.
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