Oxygen Reduction Reaction for Generating H2O2 through a Piezo-Catalytic Process over Bismuth Oxychloride

Dengkui Shao, Ling Zhang, Songmei Sun, Wenzhong Wang

    Research output: Contribution to journalArticlepeer-review

    23 Citations (Scopus)

    Abstract

    Oxygen reduction reaction (ORR) for generating H2O2 through green pathways have gained much attention in recent years. Herein, we introduce a piezo-catalytic approach to obtain H2O2 over bismuth oxychloride (BiOCl) through an ORR pathway. The piezoelectric response of BiOCl was directly characterized by piezoresponse force microscopy (PFM). The BiOCl exhibits efficient catalytic performance for generating H2O2 (28 μmol h−1) only from O2 and H2O, which is above the average level of H2O2 produced by solar-to-chemical processes. A piezo-catalytic mechanism was proposed: with ultrasonic waves, an alternating electric field will be generated over BiOCl, which can drive charge carriers (electrons) to interact with O2 and H2O, then to form H2O2.

    Original languageEnglish
    Pages (from-to)527-531
    Number of pages5
    JournalChemSusChem
    Volume11
    Issue number3
    DOIs
    Publication statusPublished - Feb 9 2018

    All Science Journal Classification (ASJC) codes

    • Environmental Chemistry
    • Chemical Engineering(all)
    • Materials Science(all)
    • Energy(all)

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