Boosting the O₂-to-H₂O₂ Selectivity Using Sn-Doped Carbon Electrocatalysts: Towards Highly Efficient Cathodes for Actual Water Decontamination.

ABSTRACT: The high cost and often complex synthesis procedure of new highly selective electrocatalysts (particularly those based on noble metals) for H₂O₂ production are daunting obstacles to penetration of this technology into the wastewater treatment market. In this work, a simple direct thermal method has been employed to synthesize Sn-doped carbon electrocatalysts, which showed an electron transfer number of 2.04 and outstanding two-electron oxygen reduction reaction (ORR) selectivity of up to 98.0 %. Physicochemical characterization revealed that this material contains 1.53 % pyrrolic nitrogen, which is beneficial for the production of H₂O₂, and -C≡N functional group, which is advantageous for H⁺ transport. Moreover, the high volume ratio o

SUBMITTER: Zhao L 

PROVIDER: S-EPMC11789999 | biostudies-literature | 2025 Feb

REPOSITORIES: biostudies-literature