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journal article·2026-02Open access

3D Cu Microbuds for Electrocatalytic CO Reduction Reaction

Xueqiu Chen, Jing‐Jing Lv, Limin Zhou, Xiaoruizhuo Lin, Mingming Zhang, Zeqiang Cui, Bingtao Sun, Dan Shi, Yong Lei, Ning Wang, Huile Jin, Haibo Ke, Shun Wang, Shaoan Cheng, Zheng‐Jun Wang

Small· Volume 22· Issue 12
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Abstract

Abstract Cu‐based materials can electrocatalytically reduce CO 2 or CO into high‐value‐added multi‐carbon (C 2+ ) products. The features, including morphology, crystal plane, etc., have a great influence on their electrocatalytic performance. Herein, the 3D Cu microbuds (3D Cu MBs) are finely synthesized with enriched grain boundaries by controlling the reaction temperature, time, and pH. The obtained Cu MBs can work as an efficient catalyst for electrocatalytic CO reduction reaction (eCORR) in a flow cell. As compared to the commercial micron Cu, Cu MBs exhibit a significantly higher C 2+ product selectivity (≈83% at −0.58 V vs reversible hydrogen electrode‐RHE), higher partial current density (410 mA cm −2 ), and a lower overpotential. The typical 3D hierarchical structure and polycrystalline feature endow the Cu MBs with abundant active grain boundaries for eCORR to form C 2+ products. This study offers a new insight into the crystalline‐controlled synthesis of 3D Cu catalyst for CO electrolysis.
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Research context

Catalysis & surfaces

OpenAlex topics: CO2 Reduction Techniques and Catalysts · Ionic liquids properties and applications · Advanced Thermoelectric Materials and Devices

SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.

Affiliations

Institute of New Materials and Industrial Technologies College of Chemistry and Materials Engineering Wenzhou University Wenzhou 325035 P. R. China

State Key Laboratory of Clean Energy Utilization College of Energy Engineering Zhejiang University Hangzhou 310027 P. R. China

School of Mechanical and Electrical Engineering Wenzhou University Wenzhou 325035 P. R. China

Wenzhou Quality and Technology Testing Research Institute Wenzhou 325035 P. R. China

Fachgebiet Angewante Nanophysik Institut für Physik & IMN MacroNano (ZIK) Technische Universität Ilmenau 98693 Ilmenau Germany

Songshan Lake Materials Laboratory Dongguan 523808 P. R. China

Funding

National Natural Science Foundation of China · Songshan Lake Materials Laboratory · State Key Laboratory of Analytical Chemistry for Life Science · State Key Laboratory of Clean Energy Utilization · China Postdoctoral Science Foundation

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