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<p>3D printing as an advanced manufacturing technique provides an alternative cost-effective option for design and preparation of porous catalytic electrodes. Herein, carbonaceous catalytic electrodes with ternary dopants of boron (B), phosphorous (P), and nitrogen (N) (termed BPN-3Dp-CCEs) were successfully engineered <i>via</i> combination of the 3D printing technique and the following conformal carbonization of ionic liquid. The as-made electrodes were in turn applied to electrify CO<sub>2</sub> into syngas in a controllable composition of a H<sub>2</sub>:CO molar ratio of 0.32–3.46. Notably, the BPN-3Dp-CCEs have tailored 3D macroscopic shapes of self-supporting skeletons, and due to ternary doping, demonstrated promoted catalytic activity in the electrocatalytic CO<sub>2</sub> conversion into syngas. Upon optimization, the electrode remained stable in structure and performance after 10 h of a continuous CO<sub>2</sub> electrolysis operation. This study casts insights and fuels the continuous exploration of multi-heteroatoms doped porous carbon electrodes for metal-free catalytic applications.</p><p></p>

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Multi-heteroatom-doped porous carbon electrodes from 3D printing and conformal carbonization of ionic liquids for electrocatalytic CO2 conversion into syngas

  • 期刊论文

  • 出版模式：

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  • 发表日期：

    2025年4月23日

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  • Wei Wang,
  • Na Zhao,
  • Kai Zhao,
  • Miao Zhang,
  • Kanglei Pang,
  • Yu Zhang,
  • Jiayin Yuan

摘要

3D printing as an advanced manufacturing technique provides an alternative cost-effective option for design and preparation of porous catalytic electrodes. Herein, carbonaceous catalytic electrodes with ternary dopants of boron (B), phosphorous (P), and nitrogen (N) (termed BPN-3Dp-CCEs) were successfully engineered via combination of the 3D printing technique and the following conformal carbonization of ionic liquid. The as-made electrodes were in turn applied to electrify CO2 into syngas in a controllable composition of a H2:CO molar ratio of 0.32–3.46. Notably, the BPN-3Dp-CCEs have tailored 3D macroscopic shapes of self-supporting skeletons, and due to ternary doping, demonstrated promoted catalytic activity in the electrocatalytic CO2 conversion into syngas. Upon optimization, the electrode remained stable in structure and performance after 10 h of a continuous CO2 electrolysis operation. This study casts insights and fuels the continuous exploration of multi-heteroatoms doped porous carbon electrodes for metal-free catalytic applications.