| 초록 |
In this study, bi-functional, and hierarchical composite catalyst was synthesized from 1D structure with abundant, and inexpensive non-precious components. This membrane-type catalyst can be used directly as a freestanding form without the starting substrate. A fiber-type 1D membrane is firstly prepared via a hydrothermal reaction, and then a bulk, hierarchical membrane catalyst was synthesized through an annealing process with melamine powder. In the presence of melamine, the nitrogen and carbon elements are added to the 1D cobalt hydroxide membrane during annealing process, and simultaneously tiny CNTs are grown in-situ on the surface of the membrane. The incorporation of nitrogen-doped carbon matrix to M-N-C complex increases the electrical and electronic conductivity, thereby maximizing the activity of the catalyst. The durability and efficiency of electrocatalyst are measured and the feasibility of the hydrgen production system is presented with this non-precious catalyst. |
