Efficient Electrochemical Reduction of Carbon Dioxide to Acetate on Nitrogen-Doped Nanodiamond
Dalian University of Technology
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Abstract
Electrochemical reduction of CO2 is an attractive technique for reducing CO2 emission and converting it into useful chemicals, but it suffers from high overpotential, low efficiency or poor product selectivity. Here, N-doped nanodiamond/Si rod array (NDD/Si RA) was proposed as an efficient nonmetallic electrocatalyst for CO2 reduction. It preferentially and rapidly converted CO2 to acetate over formate with an onset potential of -0.36 V (vs RHE), overcoming the usual limitation of low selectivity for C2 products. Moreover, faradic efficiency of 91.2-91.8% has been achieved for CO2 reduction at -0.8 to -1.0 V. Its superior performance for CO2 reduction can be attributed to its high overpotential for hydrogen…
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Authors
4Topics & keywords
Topics
Keywords
- Overpotential
- Nanodiamond
- Chemistry
- Electrochemical reduction of carbon dioxide
- Formate
- Selectivity
- Electrocatalyst
- Electrochemistry
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