Purnami Purnami, Nugroho Willy Satrio, Supriyono Supriyono, I.N.G. Wardana
Rapid growth of information processing and storing technology enforces the rapid relevancy reduction of predecessor technology. Electronic waste accumulation and energy scarcity in the future can be tackled through waste re-utilization. This study intends to develop a digitally controllable organic electrocatalyst based on CD-R. The developed catalyst hydrogen evolution reaction rate was evaluated on electrolysis test in saltwater solvent. The mechanistic view of the kinetics was built from the functional group, phase, and morphological characterization followed by surface charge analysis through digital imaging technique. The result shows that digital information alters electrocatalytic performance of CD shavings and undamaged CD. The half-loaded data CD shavings produced 449101 ppm H2 which surpass fully-loaded CD shavings with 421879 ppm H2. All CD shavings final H2 were higher than the undamaged CD final concentration. The size of the data loaded on CD determines the surface polarity pattern which enabling digital control. The ununiformed CD shaving kinetics is strongly depends on its size and shape which deviates the role of loaded data size. The strong interchanging surface polarity of fully-loaded CD is effective to interact with negative and positive water ion cluster. In conclusion, this study has enabled electrocatalyst kinetic control through digital information. © 2022 Hydrogen Energy Publications LLC
Department of Mechanical Engineering, Brawijaya University, Indonesia; Department of Chemical Engineering, Brawijaya University, Indonesia