AI Article Synopsis
- Iron phosphide/carbon (FeP/C) materials show great promise as electrocatalysts for the oxygen reduction reaction (ORR), but finding variants with improved catalytic activity for biocatalysis remains challenging.
- FeP/carbon dots (FeP/CDs) have been developed to demonstrate enhanced peroxidase-like (POD-like) catalytic activity, achieving a specific activity of 31.1 U/mg, which is double that of standard FeP.
- The antibacterial efficacy of FeP/CDs nanozymes is significant, showing a 98.1% effectiveness and outperforming other nanozymes such as FeP and FeO/CDs by varying degrees.
Article Abstract
Iron phosphide/carbon (FeP/C) serving as electrocatalysts exhibit excellent activity in oxygen reduction reaction (ORR) process. HO catalyzed by peroxidase (POD) is similar to the formation of new electron transfer channels and the optimization of adsorption of oxygen-containing intermediates or desorption of products in ORR process. However, it is still a challenge to discover FeP/C with enhanced POD-like catalytic activity in the electrocatalytic database for biocatalysis. The discovery of FeP/carbon dots (FeP/CDs) nanozymes driven by electrocatalytic activity for enhanced POD-like ability is demonstrated. FeP/CDs derived from CDs-Fe chelates show enhanced POD-like catalytic and antibacterial activity. FeP/CDs exhibit enhanced POD-like activities with a specific activity of 31.1 U mg that is double higher than that of FeP. The antibacterial ability of FeP/CDs nanozymes with enhanced POD-like activity is 98.1%. The antibacterial rate of FeP/CDs nanozymes (250 µg mL) increased by 5%, 15%, and 36% compared with FeP, FeO/CDs, and CuP/CDs nanozymes, respectively. FeP/CDs nanozymes will attract more efforts to discover or screen transition metal phosphide/C nanozymes with enhanced POD-like catalytic activity for biocatalysis in the electrocatalytic database.
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| http://dx.doi.org/10.1002/adhm.202402568 | DOI Listing |
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