S-dopant and O-vacancy of mesoporous ZnO nanosheets induce high efficiency and selectivity of electrocatalytic CO2 reduction to CO

Wang, Ying; Kang, Yiqing; Miao, Yueyuan; Jia, Mingshu; Long, Sicen; Diao, Lipeng; Zhang, Lijie; Li, Daohao; Wu, Guanglei

doi:10.1016/j.coco.2024.101890

Composites Communications

2024

DOI: 10.1016/j.coco.2024.101890

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S-dopant and O-vacancy of mesoporous ZnO nanosheets induce high efficiency and selectivity of electrocatalytic CO2 reduction to CO

Ying Wang,

Yiqing Kang,

Yueyuan Miao

et al.

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Cited by 4 publications

References 36 publications

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Efficient nitrate electroreduction to ammonia over copper catalysts supported on electron-delocalized covalent organic frameworks

Wang,

Chao,

Zong

et al. 2024

Chemical Engineering Journal

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Efficient nitrate electroreduction to ammonia over copper catalysts supported on electron-delocalized covalent organic frameworks

Wang,

Chao,

Zong

et al. 2024

Chemical Engineering Journal

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p–d Orbital Hybridization in Pd₃Sn Metallic Aerogels Boosts Alcohol Electrooxidation

Guan,

Fu,

Zhu

et al. 2024

Chem. Mater.

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Orbital engineering of nanomaterials has been proven to be a compelling strategy, which stimulates the synthesis of palladium (Pd)-based nanomaterials with p−d orbital hybridization and the exploration of their electrocatalytic properties. Herein, Pd 3 Sn metallic aerogels (Pd 3 Sn MAs) with p−d orbital hybridization were reasonably constructed as efficient electrocatalysts for alcohol electrooxidation. In particular, the mass activity and specific activity of Pd 3 Sn MAs for the ethylene glycol oxidation reaction are 1.69 A mg Pd −1 and 3.56 mA cm Pd −2, respectively, superior to Pd MAs and commercial Pd/C. Meanwhile, benefiting from the excellent antipoisoning properties, Pd 3 Sn MAs still maintain satisfactory activity after long-term durability tests. Moreover, the same trend can be observed in reactions such as the methanol oxidation reaction, the ethanol oxidation reaction, and the glycerol oxidation reaction. Furthermore, density functional theory calculations reveal that the p−d orbital hybridization of Pd 3 Sn MAs precisely regulates the electronic structure and d-band center of Pd and also decreases the reaction energy barrier in the rate-determining step, thus reactivating the surface of Pd 3 Sn MAs. This study provides a broad prospect for the design of efficient fuel cell electrocatalysts through orbital engineering.

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Low-Coordinated Pd–Pb Sites in Porous Pd₃Pb Metallene Aerogels Promote Polyalcohol Electrochemical Oxidation

Fu,

Huang,

Zhu

et al. 2024

ACS Materials Lett.

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Low-coordinated sites can effectively activate adsorbants and promote electrochemical reactions with slow kinetics and multielectron transfer processes, but achieving high exposure rates of low-coordinated sites on the electrocatalyst surface remains challenging. Herein, we first present the synthesis of the porous Pd 3 Pb metallene aerogels (MAs) with low-coordinated Pd−Pb sites through dynamic reconfiguration strategy for alcohol oxidation reaction (AOR). The porous Pd 3 Pb MAs possess high mass activity (1.63 A mg Pd −1 ), specific activity (6.28 mA cm −2 ), and antipoisoning property in ethylene glycol oxidation reaction (EGOR), superior to other prepared catalysts. The same trend was observed in the ethanol oxidation reaction and glycerol oxidation reaction. Mechanism studies show that porous Pd 3 Pb MAs with low-coordinated Pd−Pb sites could provide more unsaturated sites for adsorption and activation of ethylene glycol, as well as lowering the reaction energy barriers of CH 2 OHCHO*, CH 2 OHCOO*, and COOCOO*. This work explored a novel idea for the design Pd-based catalysts in antipoisoned AOR.

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S-dopant and O-vacancy of mesoporous ZnO nanosheets induce high efficiency and selectivity of electrocatalytic CO2 reduction to CO

Cited by 4 publications

References 36 publications

Efficient nitrate electroreduction to ammonia over copper catalysts supported on electron-delocalized covalent organic frameworks

Efficient nitrate electroreduction to ammonia over copper catalysts supported on electron-delocalized covalent organic frameworks

p–d Orbital Hybridization in Pd₃Sn Metallic Aerogels Boosts Alcohol Electrooxidation

Low-Coordinated Pd–Pb Sites in Porous Pd₃Pb Metallene Aerogels Promote Polyalcohol Electrochemical Oxidation

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S-dopant and O-vacancy of mesoporous ZnO nanosheets induce high efficiency and selectivity of electrocatalytic CO2 reduction to CO

Cited by 4 publications

References 36 publications

Efficient nitrate electroreduction to ammonia over copper catalysts supported on electron-delocalized covalent organic frameworks

Efficient nitrate electroreduction to ammonia over copper catalysts supported on electron-delocalized covalent organic frameworks

p–d Orbital Hybridization in Pd3Sn Metallic Aerogels Boosts Alcohol Electrooxidation

Low-Coordinated Pd–Pb Sites in Porous Pd3Pb Metallene Aerogels Promote Polyalcohol Electrochemical Oxidation

Contact Info

Product

Resources

About

p–d Orbital Hybridization in Pd₃Sn Metallic Aerogels Boosts Alcohol Electrooxidation

Low-Coordinated Pd–Pb Sites in Porous Pd₃Pb Metallene Aerogels Promote Polyalcohol Electrochemical Oxidation