| Abstract [eng] |
In this study, novel effective materials have been developed using base metal, such as zinc-cobalt and cobalt having a fiber-like structure compositions and modifying them with small amounts of gold or platinum nanoparticles with the aim to use these materials as the anodes in direct borohydride (DBFC) and hydrazine (DHFC) fuel cells. The methodology for preparation of AuZnCo/Ti, AuCofiber/Cu and PtCofiber/Cu catalysts with very small amounts of Au or Pt nanoparticles has been established. In addition, this methodology allows creating of an efficient AuZnCo/Ti, AuCofiber/Cu and PtCofiber/Cu catalysts having a significantly higher electrocatalytic activity for the oxidation of sodium borohydride and hydrazine as compared with that of pure ZnCo/Ti or Cofiber/Cu catalysts. The prepared catalysts have been applied as the anode materials in direct NaBH4-H2O2 and N2H4-H2O2 fuel cell prototypes. Notably, these catalysts exhibit a higher performance than the previously used catalysts in NaBH4-H2O2 and N2H4-H2O2 fuel cells, therefore, these AuCofiber/Cu and PtCofiber/Cu catalysts can be successfully used in those fuel cells as anode materials. |
