Volume 21, Issue 3 2407349
Research Article

3D-Printed Hierarchical Nanostructured N-Co2NiO4 NF Electrode for Efficient Concurrent Electrocatalytic Production of Hydrogen and Formate

Zhaojing Han

Zhaojing Han

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 P. R. China

School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Hanwen Tao

Hanwen Tao

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 P. R. China

School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Gang Wang

Gang Wang

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 P. R. China

School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Chuanting Fan

Chuanting Fan

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 P. R. China

School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

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Jie Zhang

Corresponding Author

Jie Zhang

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 P. R. China

School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

E-mail: [email protected]; [email protected]

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Zhiyong Tang

Corresponding Author

Zhiyong Tang

Shanghai Advanced Research Institute, Chinese Academy of Sciences, Shanghai, 201210 P. R. China

School of Chemical Engineering, University of Chinese Academy of Sciences, Beijing, 100049 P. R. China

School of Chemistry and Material Science, University of Science and Technology of China, Hefei, Anhui, 230026 P. R. China

Key Laboratory of Functional Molecular Solids, Ministry of Education, Anhui Engineering Research Center of Carbon Neutrality, College of Chemistry and Materials Science, Anhui Normal University, Wuhu, 241000 P. R. China

E-mail: [email protected]; [email protected]

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First published: 09 December 2024
Citations: 2

Abstract

Replacing the oxygen evolution reaction with the alternative glycerol electro-oxidation reaction (GER) provides a promising strategy to enhance the efficiency of hydrogen production via water electrolysis while co-generating high-value chemicals. However, obtaining low-cost and efficient GER electrocatalysts remains a big challenge. Herein, a self-supported N-doped Co2NiO4 nanoflakes (N-Co2NiO4 NF) is proposed for efficient electrocatalytic oxidation of glycerol to formate. The synergistic effect induced by the interaction of the layered Co2NiO4 nanostructures on the 3D-printed Nickel-Yttria-stabilized zirconia (Ni-YSZ) substrate and the amorphous nitrogen-doping promotes the anodic GER. The N-Co2NiO4 NF exhibits low potentials of 1.07 and 1.18 V (vs. RHE) for GER to drive 10 and 50 mA cm−2, respectively. The constituted two-electrode electrolyzer (N-Co2NiO4 NF//NiS-Co-NiP) displays excellent activity that only requires ultralow cell voltages of 1.24 and 1.55 V to afford 10 and 200 mA cm−2, respectively, with a high FE (97%) for formate production and an excellent durability (120 h). This study provides a versatile approach for manufacturing high-performance Ni-based electrocatalyst for GER, paving the way for the energy-saving and environmentally-friendly co-production of value-added chemicals and hydrogen.

Conflict of Interest

The authors declare no conflict of interest.

Data Availability Statement

The data that support the findings of this study are available from the corresponding author upon reasonable request.

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