{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Zhu J"],"funding":["Polish Innovation Economy Operational Program","Chinese Scholarship Council"],"pagination":["e2505306"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12332811"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["21(31)"],"pubmed_abstract":["Bimetallic catalysts are appealing for electrochemical CO<sub>2</sub> 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 Ni<sub>x</sub>Cu<sub>y</sub>@NC catalysts with varied Ni to Cu weight ratios are prepared. The as-prepared Ni<sub>2</sub>Cu<sub>1</sub>@NC catalyst shows high carbon monoxide (CO) Faradaic efficiencies (FE<sub>CO</sub>) 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<sup>-2</sup> 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 Ni<sub>2</sub>Cu<sub>1</sub>@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."],"journal":["Small (Weinheim an der Bergstrasse, Germany)"],"pubmed_title":["Strategic Modulation of CO Intermediate Desorption Dynamics on Bimetallic Ni&lt;sub&gt;x&lt;/sub&gt;Cu&lt;sub&gt;y&lt;/sub&gt;@NC Catalyst: Synergistic Electrocatalysis for Sustainable CO&lt;sub&gt;2&lt;/sub&gt; Conversion."],"pmcid":["PMC12332811"],"funding_grant_id":["POIR.04.02.00-00-D001/20POIG.02.01.00-12-023/08","202008440279"],"pubmed_authors":["Li G","Kustrowski P","Zhu J","Das S","Lu Z","Wang Z","Cool P","Rokicinska A"],"additional_accession":[]},"is_claimable":false,"name":"Strategic Modulation of CO Intermediate Desorption Dynamics on Bimetallic Ni&lt;sub&gt;x&lt;/sub&gt;Cu&lt;sub&gt;y&lt;/sub&gt;@NC Catalyst: Synergistic Electrocatalysis for Sustainable CO&lt;sub&gt;2&lt;/sub&gt; Conversion.","description":"Bimetallic catalysts are appealing for electrochemical CO<sub>2</sub> 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 Ni<sub>x</sub>Cu<sub>y</sub>@NC catalysts with varied Ni to Cu weight ratios are prepared. The as-prepared Ni<sub>2</sub>Cu<sub>1</sub>@NC catalyst shows high carbon monoxide (CO) Faradaic efficiencies (FE<sub>CO</sub>) 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<sup>-2</sup> 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 Ni<sub>2</sub>Cu<sub>1</sub>@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.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Aug","modification":"2026-04-15T19:17:08.471Z","creation":"2026-04-07T14:01:14.668Z"},"accession":"S-EPMC12332811","cross_references":{"pubmed":["40478568"],"doi":["10.1002/smll.202505306"]}}