Biomass electrocatalytic conversion (IMAGE) Science China Press Caption The sandwich catalyst, composed of Ru clusters confined within unilamellar MnO2 nanosheets, leverages a nano-confined effect in conjunction with electrochemical pulses to attain stable, high catalytic activity and improved OH* generation capabilities under neutral electrolyte conditions. This innovative strategy results in a remarkable yield of 98.7% of 2,5-furandicarboxylic acid (FDCA) from the electrooxidation of 5-hydroxymethylfurfural (HMF) in neutral electrolytes. Credit ©Science China Press Usage Restrictions Use with credit. License Original content Disclaimer: AAAS and EurekAlert! are not responsible for the accuracy of news releases posted to EurekAlert! by contributing institutions or for the use of any information through the EurekAlert system.