Surface engineering and local electron structure modulation to accelerate electroreduction of low‐concentration nitrate

Key Points

• The central aim is to enhance the electroreduction process of low-concentration nitrate by addressing side reactions and improving reaction dynamics.
• Developed a NiFe-layered double hydroxide with specific surface engineering characteristics.
• Assessed the material's hydrophobicity and presence of oxygen vacancies.
• Evaluated electroreduction performance in controlled conditions.
• Significant improvement in electroreduction efficiency observed in the presence of hydrophobicity and oxygen vacancies.
• Reduced competitive hydrogen evolution reaction, enabling more effective nitrate conversion.
• Experimental data showed an increased reaction rate compared to standard methods.