Strategic Modulation of CO Intermediate Desorption Dynamics on Bimetallic NiₓCuᵧ@NC Catalyst : Synergistic Electrocatalysis for Sustainable CO₂ Conversion

DOI zum Zitieren der Version auf EPub Bayreuth: https://doi.org/10.15495/EPub_UBT_00009012
URN to cite this document: urn:nbn:de:bvb:703-epub-9012-2

Title data

Zhu, Jian ; Li, Guangchao ; Rokicińska, Anna ; Wang, Zhenyu ; Kuśtrowski, Piotr ; Lu, Zhouguang ; Das, Shoubhik ; Cool, Pegie:
Strategic Modulation of CO Intermediate Desorption Dynamics on Bimetallic NiₓCuᵧ@NC Catalyst : Synergistic Electrocatalysis for Sustainable CO₂ Conversion.
In: Small. Vol. 21 (2025) Issue 31 . - 2505306.
ISSN 1613-6829
DOI der Verlagsversion: https://doi.org/10.1002/smll.202505306

	Format: PDF Name: Small - 2025 - Zhu - Strategic Modulation of CO Intermediate Desorption Dynamics on Bimetallic NixCuy NC Catalyst .pdf Version: Published Version Available under License Creative Commons BY 4.0: Attribution
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Abstract

Bimetallic catalysts are appealing for electrochemical CO2 reduction reaction (ECO2RR), yet the introduction of bimetallic sites leads to an incomprehensive understanding of the metal atom interaction and catalytic mechanism. In this study, a series of bimetallic NixCuy@NC catalysts with varied Ni to Cu weight ratios are prepared. The as-prepared Ni2Cu1@NC catalyst shows high carbon monoxide (CO) Faradaic efficiencies (FECO) over 90% in a broad potential range of −0.7 to −1.1 V (vs reversible hydrogen electrode (RHE)) with an exceptional durability of CO selectivity over 80% and a high partial current density of −44 mA cm−2 at an extremely high potential of −1.3 V (vs RHE). The distinguished CO selectivity and activity are primarily attributed to the integration of Ni and Cu, which lowers the d-band center position and reconstructs the electronic structure according to the valence band spectra. More specifically, the downshifted d-band center position weakens the interaction strength with the *CO intermediate on the Ni2Cu1@NC catalyst's surface during the ECO2RR process, resulting in fast *CO desorption and high CO selectivity. This study provides researchers with a new insight for designing and optimizing the electrocatalysts for ECO2RR.

Further data

Item Type:	Article in a journal
DDC Subjects:	500 Science > 540 Chemistry
Institutions of the University:	Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Organic Chemistry I - Photo- und Elektrokatalyse für Nachhaltigkeit > Chair Organic Chemistry I - Photo- und Elektrokatalyse für Nachhaltigkeit - Univ.-Prof. Dr. Shoubhik Das Faculties Faculties > Faculty of Biology, Chemistry and Earth Sciences Faculties > Faculty of Biology, Chemistry and Earth Sciences > Department of Chemistry > Chair Organic Chemistry I - Photo- und Elektrokatalyse für Nachhaltigkeit
Language:	English
Originates at UBT:	Yes
URN:	urn:nbn:de:bvb:703-epub-9012-2
Date Deposited:	24 Mar 2026 11:11
Last Modified:	24 Mar 2026 11:11
URI:	https://epub.uni-bayreuth.de/id/eprint/9012

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