Revealing Grain Dependent Glucose Oxidation Pathways on Gold with Scanning Electrochemical Cell Microscopy

Key Points

• This research aims to uncover how the structure of gold grains affects glucose oxidation activity at the nanoscale.
• Utilized correlative scanning electrochemical cell microscopy and electron backscatter diffraction.
• Performed analyses at identical locations on polycrystalline gold.
• Applied a new current-normalization technique to evaluate nanoscale activity.
• Demonstrated that glucose oxidation reaction activity is dependent on the grain structure of gold.
• Revealed significant variations in local glucose oxidation rates based on specific grain characteristics.