Synthesis of a Nickel Single-Atom Catalyst Based on Ni？N4？xCx Active Sites for Highly Efficient CO2 Reduction Utilizing a Gas Diffusion Electrode
- Synthesis of a Nickel Single-Atom Catalyst Based on Ni？N4？xCx Active Sites for Highly Efficient CO2 Reduction Utilizing a Gas Diffusion Electrode
- 정광덕; 오지훈; 아사드아바스; 송준태; 남기민; Ying Chuan Tan
- CO2 conversion; Electrochemical CO2 reduction; single atomic Ni catalysts
- Issue Date
- ACS applied energy materials
- VOL 3-8745
- A Ni single-atom catalyst with Ni？N4？xCx active sites is prepared in a single pyrolysis step in which the Ni single atom is incorporated in the carbon framework through nitrogen and carbon coordination utilizing the ionothermal synthesis method. In comparison to the complicated synthesis procedures of single-atom catalysts, this method provides a general and facile method to obtain single-atom catalysts with an opportunity to synthesize catalysts at a large scale. The precursors used in this method such as adenine, fructose, and glucose are derived from the biomass which is the essential requirement for a green process. The synthetic procedure developed here enables tunable properties of the catalysts, such as the density of active sites and characteristics of the carbon framework. In this study, the catalytic properties of our materials are investigated for an electrochemical CO2 reduction reaction. The overall catalytic activity of the catalyst depends on the density of active sites,
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