Effective electrochemical ozone production coupled with hydrogen evolution reaction by synergistic effect of PtCo alloy and borides

Fengying Gao; Xinyu Li; Lihao Liu; Mengmeng Lu; Huaijie Shi; Xuan Yu; Lei Ding; Shibin Wang; Sheng Dai; Xing Zhong; Jianguo Wang

doi:10.1016/j.ces.2025.121444

Effective electrochemical ozone production coupled with hydrogen evolution reaction by synergistic effect of PtCo alloy and borides

Fengying Gao, Xinyu Li, Lihao Liu, Mengmeng Lu, Huaijie Shi, Xuan Yu, Lei Ding, Shibin Wang, Sheng Dai, Xing Zhong, Jianguo Wang

Chemical Sciences Division

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

3 Scopus citations

Abstract

Platinum-based electrocatalysts exhibited good performance in electrocatalytic ozone production (EOP) and hydrogen evolution reaction (HER). Nonetheless, the widespread application of platinum is restricted due to its limited availability and high cost. In this study, we propose an alloying strategy for the synthesis of PtCo/Co₂B, which achieved a Faraday efficiency (FE) of 9.09 % for EOP and overpotential of 51.5 mV for HER at 10 mA⋅cm⁻² in acidic conditions. Theoretical calculations demonstrate that the synergy between the PtCo and Co₂B in PtCo/Co₂B modulates the adsorption properties of the O₃* intermediate, thereby facilitating the reaction towards the EOP. Furthermore, the chemisorption energy of hydrogen is approximately zero, indicating optimal electrocatalytic activity for HER. Such unique structure enhances the performance of electrocatalyst and significantly extends its durability in practical applications. In addition to its electrochemical performance, the PtCo/Co₂B electrocatalyst effectively degrades organic pollutants and demonstrates strong sterilization capabilities.

Original language	English
Article number	121444
Journal	Chemical Engineering Science
Volume	309
DOIs	https://doi.org/10.1016/j.ces.2025.121444
State	Published - May 1 2025

Funding

The authors acknowledge the financial support from the National Key R & D Program of China (2022YFA1504200), Zhejiang Provincial Natural Science Foundation of China (No. LR22B060003 ), National Natural Science Foundation of China ( 22322810 , 22078293 , 22141001 , and 22008211 ), and the Fundamental Research Funds for the Provincial Universities of Zhejiang ( RF-C2023004 ).

Keywords

Borides
Electrochemical ozone production
Electrodegradation
PtCo
Synergistic effect

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title = "Effective electrochemical ozone production coupled with hydrogen evolution reaction by synergistic effect of PtCo alloy and borides",

abstract = "Platinum-based electrocatalysts exhibited good performance in electrocatalytic ozone production (EOP) and hydrogen evolution reaction (HER). Nonetheless, the widespread application of platinum is restricted due to its limited availability and high cost. In this study, we propose an alloying strategy for the synthesis of PtCo/Co2B, which achieved a Faraday efficiency (FE) of 9.09 \% for EOP and overpotential of 51.5 mV for HER at 10 mA⋅cm−2 in acidic conditions. Theoretical calculations demonstrate that the synergy between the PtCo and Co2B in PtCo/Co2B modulates the adsorption properties of the O3* intermediate, thereby facilitating the reaction towards the EOP. Furthermore, the chemisorption energy of hydrogen is approximately zero, indicating optimal electrocatalytic activity for HER. Such unique structure enhances the performance of electrocatalyst and significantly extends its durability in practical applications. In addition to its electrochemical performance, the PtCo/Co2B electrocatalyst effectively degrades organic pollutants and demonstrates strong sterilization capabilities.",

keywords = "Borides, Electrochemical ozone production, Electrodegradation, PtCo, Synergistic effect",

author = "Fengying Gao and Xinyu Li and Lihao Liu and Mengmeng Lu and Huaijie Shi and Xuan Yu and Lei Ding and Shibin Wang and Sheng Dai and Xing Zhong and Jianguo Wang",

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doi = "10.1016/j.ces.2025.121444",

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T1 - Effective electrochemical ozone production coupled with hydrogen evolution reaction by synergistic effect of PtCo alloy and borides

AU - Gao, Fengying

AU - Li, Xinyu

AU - Liu, Lihao

AU - Lu, Mengmeng

AU - Shi, Huaijie

AU - Yu, Xuan

AU - Ding, Lei

AU - Wang, Shibin

AU - Dai, Sheng

AU - Zhong, Xing

AU - Wang, Jianguo

PY - 2025/5/1

Y1 - 2025/5/1

N2 - Platinum-based electrocatalysts exhibited good performance in electrocatalytic ozone production (EOP) and hydrogen evolution reaction (HER). Nonetheless, the widespread application of platinum is restricted due to its limited availability and high cost. In this study, we propose an alloying strategy for the synthesis of PtCo/Co2B, which achieved a Faraday efficiency (FE) of 9.09 % for EOP and overpotential of 51.5 mV for HER at 10 mA⋅cm−2 in acidic conditions. Theoretical calculations demonstrate that the synergy between the PtCo and Co2B in PtCo/Co2B modulates the adsorption properties of the O3* intermediate, thereby facilitating the reaction towards the EOP. Furthermore, the chemisorption energy of hydrogen is approximately zero, indicating optimal electrocatalytic activity for HER. Such unique structure enhances the performance of electrocatalyst and significantly extends its durability in practical applications. In addition to its electrochemical performance, the PtCo/Co2B electrocatalyst effectively degrades organic pollutants and demonstrates strong sterilization capabilities.

AB - Platinum-based electrocatalysts exhibited good performance in electrocatalytic ozone production (EOP) and hydrogen evolution reaction (HER). Nonetheless, the widespread application of platinum is restricted due to its limited availability and high cost. In this study, we propose an alloying strategy for the synthesis of PtCo/Co2B, which achieved a Faraday efficiency (FE) of 9.09 % for EOP and overpotential of 51.5 mV for HER at 10 mA⋅cm−2 in acidic conditions. Theoretical calculations demonstrate that the synergy between the PtCo and Co2B in PtCo/Co2B modulates the adsorption properties of the O3* intermediate, thereby facilitating the reaction towards the EOP. Furthermore, the chemisorption energy of hydrogen is approximately zero, indicating optimal electrocatalytic activity for HER. Such unique structure enhances the performance of electrocatalyst and significantly extends its durability in practical applications. In addition to its electrochemical performance, the PtCo/Co2B electrocatalyst effectively degrades organic pollutants and demonstrates strong sterilization capabilities.

KW - Borides

KW - Electrochemical ozone production

KW - Electrodegradation

KW - PtCo

KW - Synergistic effect

UR - https://www.scopus.com/pages/publications/85219163474

U2 - 10.1016/j.ces.2025.121444

DO - 10.1016/j.ces.2025.121444

M3 - Article

AN - SCOPUS:85219163474

SN - 0009-2509

VL - 309

JO - Chemical Engineering Science

JF - Chemical Engineering Science

M1 - 121444

ER -

Effective electrochemical ozone production coupled with hydrogen evolution reaction by synergistic effect of PtCo alloy and borides

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Keywords

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