Magnetic-field-assisted cascade electrocatalysis: simultaneous H2O2 generation and ˙OH radical production for coupled hydrogen evolution and water disinfection

Yeonsu Han; Jungsue Choi; Soyun Oh; Hyun Ko; Hyoyoung Lee

doi:10.1039/d6ta02632j

Magnetic-field-assisted cascade electrocatalysis: simultaneous H₂O₂ generation and ˙OH radical production for coupled hydrogen evolution and water disinfection

Yeonsu Han
, Jungsue Choi
, Soyun Oh
, Hyun Ko
, Hyoyoung Lee

Department of Chemistry

Sungkyunkwan University

Research output: Contribution to journal › Article › peer-review

Abstract

Current research on green hydrogen mainly focuses on water electrolysis. However, the low commercial utility of oxygen hinders the reduction of hydrogen production costs. Herein, we report a bifunctional Mn-SnO₂@Fe₃O₄ catalyst for simultaneous hydrogen production and water disinfection. Under an external magnetic field, the system triggers a cascade reaction, converting in situ generated H₂O₂ into ˙OH radicals via a Fenton-like reaction. This synergy achieved 99.9% antibacterial efficacy against Escherichia coli at 2.6 V vs. RHE.

Original language	English
Journal	Journal of Materials Chemistry A
DOIs	https://doi.org/10.1039/d6ta02632j
State	Accepted/In press - 2026

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

SDG 6 Clean Water and Sanitation
SDG 7 Affordable and Clean Energy

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10.1039/d6ta02632j

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title = "Magnetic-field-assisted cascade electrocatalysis: simultaneous H2O2 generation and ˙OH radical production for coupled hydrogen evolution and water disinfection",

abstract = "Current research on green hydrogen mainly focuses on water electrolysis. However, the low commercial utility of oxygen hinders the reduction of hydrogen production costs. Herein, we report a bifunctional Mn-SnO2@Fe3O4 catalyst for simultaneous hydrogen production and water disinfection. Under an external magnetic field, the system triggers a cascade reaction, converting in situ generated H2O2 into ˙OH radicals via a Fenton-like reaction. This synergy achieved 99.9\% antibacterial efficacy against Escherichia coli at 2.6 V vs. RHE.",

author = "Yeonsu Han and Jungsue Choi and Soyun Oh and Hyun Ko and Hyoyoung Lee",

note = "Publisher Copyright: {\textcopyright} The Royal Society of Chemistry, 2026.",

year = "2026",

doi = "10.1039/d6ta02632j",

language = "English",

journal = "Journal of Materials Chemistry A",

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publisher = "Royal Society of Chemistry",

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T1 - Magnetic-field-assisted cascade electrocatalysis

T2 - simultaneous H2O2 generation and ˙OH radical production for coupled hydrogen evolution and water disinfection

AU - Han, Yeonsu

AU - Choi, Jungsue

AU - Oh, Soyun

AU - Ko, Hyun

AU - Lee, Hyoyoung

PY - 2026

Y1 - 2026

N2 - Current research on green hydrogen mainly focuses on water electrolysis. However, the low commercial utility of oxygen hinders the reduction of hydrogen production costs. Herein, we report a bifunctional Mn-SnO2@Fe3O4 catalyst for simultaneous hydrogen production and water disinfection. Under an external magnetic field, the system triggers a cascade reaction, converting in situ generated H2O2 into ˙OH radicals via a Fenton-like reaction. This synergy achieved 99.9% antibacterial efficacy against Escherichia coli at 2.6 V vs. RHE.

AB - Current research on green hydrogen mainly focuses on water electrolysis. However, the low commercial utility of oxygen hinders the reduction of hydrogen production costs. Herein, we report a bifunctional Mn-SnO2@Fe3O4 catalyst for simultaneous hydrogen production and water disinfection. Under an external magnetic field, the system triggers a cascade reaction, converting in situ generated H2O2 into ˙OH radicals via a Fenton-like reaction. This synergy achieved 99.9% antibacterial efficacy against Escherichia coli at 2.6 V vs. RHE.

UR - https://www.scopus.com/pages/publications/105038919981

U2 - 10.1039/d6ta02632j

DO - 10.1039/d6ta02632j

M3 - Article

AN - SCOPUS:105038919981

SN - 2050-7488

JO - Journal of Materials Chemistry A

JF - Journal of Materials Chemistry A

ER -

Magnetic-field-assisted cascade electrocatalysis: simultaneous H₂O₂ generation and ˙OH radical production for coupled hydrogen evolution and water disinfection

Abstract

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