Electronic metal-support interactions for defect-induced Ru/Co-Sm2O3 mesosphere to achieve efficient NaBH4 hydrolysis activity

Zhou, Shuqing; Yang, Qiuling; Liu, Yi; Cheng, Lianrui; Taylor Isimjan, Tayirjan; Tian, Jianniao; Yang, Xiulin

doi:10.1016/j.jcat.2024.115491

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Cited by 5 publications

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“…The robust EMSI effect of Ru/Ni–CeO 2 facilitated the rapid adsorption and desorption of intermediates, accelerating hydrogen oxidation in the HOR process. 12,34…”

Section: Resultsmentioning

confidence: 99%

Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO₂ for enhanced hydrogen oxidation activity

Zhou,

Liu,

Cheng

et al. 2024

Inorg. Chem. Front.

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“…The robust EMSI effect of Ru/Ni–CeO 2 facilitated the rapid adsorption and desorption of intermediates, accelerating hydrogen oxidation in the HOR process. 12,34…”

Section: Resultsmentioning

confidence: 99%

Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO₂ for enhanced hydrogen oxidation activity

Zhou,

Liu,

Cheng

et al. 2024

Inorg. Chem. Front.

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Redox Activity of Co Species in the Active Sites of CoN_x/CoO_x Facilitates Oxygen Electrocatalysis for Zn‐Air Batteries

Yang,

Wang,

Cheng

et al. 2024

Chemistry A European J

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Developing efficient bifunctional oxygen electrocatalysts is crucial for enhancing the performance of rechargeable Zn‐air batteries (ZABs). In this study, cobalt/cobalt oxides embedded in N‐doped carbon nanofibers (Co/CoOx/NCNFs) were synthesized through a combination of electrospinning and annealing processes. The resulting Co/CoOx/NCNFs catalysts feature abundant CoNx and CoOx active species, leveraging the large specific surface area of nanofibers to facilitate oxygen reduction reaction (ORR) and oxygen evolution reaction (OER). The optimized Co/CoOx/NCNFs‐0.1 achieved a half‐wave potential (vs. RHE) of 0.82 V and required only 429 mV to reach 10 mA cm−2 in a typical three‐electrode system with 0.1 M KOH using an electrochemical workstation equipped with a pine instruments rotator, outperforming the Pt/C+RuO2. The assembled ZABs exhibited high specific capacity (771 mAh gZn−1), substantial power density (981.6 mWh gZn−1), and long‐term stability (>325 h). In situ Raman spectroscopy confirmed that the electrocatalytic processes involve the redox activity of Co (II and III) species derived from abundant CoNx and CoOx, elaborating the origin of the catalysts’ exceptional oxygen electrocatalysis performance. This work not only presents a straightforward and effective approach for producing bifunctional oxygen electrocatalysts in ZABs but also sheds light on the catalytic mechanisms underlying ORR and OER for CoNx/CoOx‐based oxygen electrocatalysts.

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Ce-doping-induced defect effects boosting H2 generation

Wu,

Li,

Liu

et al. 2025

Journal of Materials Science & Technology

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Electronic metal-support interactions for defect-induced Ru/Co-Sm2O3 mesosphere to achieve efficient NaBH4 hydrolysis activity

Cited by 5 publications

References 55 publications

Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO₂ for enhanced hydrogen oxidation activity

Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO₂ for enhanced hydrogen oxidation activity

Redox Activity of Co Species in the Active Sites of CoN_x/CoO_x Facilitates Oxygen Electrocatalysis for Zn‐Air Batteries

Ce-doping-induced defect effects boosting H2 generation

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Electronic metal-support interactions for defect-induced Ru/Co-Sm2O3 mesosphere to achieve efficient NaBH4 hydrolysis activity

Cited by 5 publications

References 55 publications

Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO2 for enhanced hydrogen oxidation activity

Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO2 for enhanced hydrogen oxidation activity

Redox Activity of Co Species in the Active Sites of CoNx/CoOx Facilitates Oxygen Electrocatalysis for Zn‐Air Batteries

Ce-doping-induced defect effects boosting H2 generation

Contact Info

Product

Resources

About

Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO₂ for enhanced hydrogen oxidation activity

Electronic metal–support interaction via Ni defect-induced Ru-modified Ni–CeO₂ for enhanced hydrogen oxidation activity

Redox Activity of Co Species in the Active Sites of CoN_x/CoO_x Facilitates Oxygen Electrocatalysis for Zn‐Air Batteries