Citation: Mengqing Hu, Di Zhao, Yun Wang, Jian Kang, Ming Zhou, Huai Qin Fu, Bernt Johannessen, Joshua Harbort, Jeffrey Harmer, Xinlong Yan, Yajie Shu, Porun Liu, Huajie Yin, Huijun Zhao. Fabrication of three-dimensional porous β-PbO₂@Ti mesh anode for enhanced electrocatalytic ozone production[J]. Chinese Chemical Letters, ;2026, 37(8): 111192. doi: 10.1016/j.cclet.2025.111192 shu

Fabrication of three-dimensional porous β-PbO₂@Ti mesh anode for enhanced electrocatalytic ozone production

Mengqing Hu ^{a, 1} ,
Di Zhao ^{a, 1} ,
Yun Wang ^a ,
Jian Kang ^{a, b} ,
Ming Zhou ^a ,
Huai Qin Fu ^a ,
Bernt Johannessen ^c ,
Joshua Harbort ^d ,
Jeffrey Harmer ^d ,
Xinlong Yan ^e ,
Yajie Shu ^f ,
Porun Liu ^{a, *,} ,
Huajie Yin ^{b, *,} ,
Huijun Zhao ^{a, *,}

a.
School of Environment and Science, Gold Coast Campus, Griffith University, Gold Coast, QLD 4222, Australia
b.
Centre for Environmental and Energy Nanomaterials, Institute of Solid State Physics, HFIPS, Chinese Academy of Sciences, Hefei 230031, China
c.
Australian Synchrotron, ANSTO, Clayton, VIC 3168, Australia
d.
Centre for Advanced Imaging, St Lucia Campus, University of Queensland, Brisbane, QLD 4072, Australia
e.
Jiangsu Province Engineering Research Center of Fine Utilization of Carbon Resources, School of Chemical Engineering & Technology, China University of Mining and Technology, Xuzhou 221116, China
f.
National Joint Laboratory for Advanced Textile Processing and Clean Production, Wuhan Textile University, Wuhan 430200, China

p.liu@griffith.edu.au

yinhj@issp.ac.cn

h.zhao@griffith.edu.au

Received Date: 20 January 2025
Revised Date: 31 March 2025
Accepted Date: 9 April 2025
Available Online: 9 April 2025

Figures(5)

Electrochemical ozone production (EOP) has emerged as an eco-friendly, cost-effective alternative to the current industrial corona discharge approach; however, the low Faradaic efficiency (FE) of electrochemical ozone production (EOP) and anode instability at high current density of the conventional plate electrode hinders its actual application. Herein, we introduce a strategy to enhance the EOP performance of β-PbO₂ by constructing a three-dimensional (3D) porous architecture. This approach elevates the EOP FE of the 3D-porous β-PbO₂@Ti mesh anode (14.73%) to over twice that of the conventional β-PbO₂@Ti mesh (6.11%) at a current density of 100 mA/cm². Furthermore, it demonstrates a robust service life and consistent O₃ production capability, sustaining stable output over extended periods (70 h, 20 h) at higher current densities (100, 250 mA/cm²). This strategy of external structural anode modification exerts a beneficial effect on the internal oxygen environment within β-PbO₂, increasing the availability of adsorption sites for oxygen intermediates and thus providing favorable conditions for efficient O₃ generation. This work shows the potential of 3D porous anode for practical industrial deployment of EOP.
- Three-dimensional porous anode,
- β-PbO₂,
- Electrochemical ozone production (EOP),
- Structural regulation,
- Oxygen vacancy
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Fabrication of three-dimensional porous β-PbO2@Ti mesh anode for enhanced electrocatalytic ozone production

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Fabrication of three-dimensional porous β-PbO₂@Ti mesh anode for enhanced electrocatalytic ozone production