Nghiên cứu thời gian và nhiệt độ hoạt hóa ống nano carbon ứng dụng chế tạo vật liệu xúc tác điện cực pin nhiên liệu methanol

Abstract

Carbon nanotubes were activated by a mixture of nitric acid and sulfuric acid (volume ratio 1:1) with different time and temperatures. The platinum-ruthenium electrocatalyst material (PtRu) based on activated carbon nanotubes (CNTs) was synthesized by chemical reduction method. The precursors H2PtCl6 and RuCl3 were used with the efficient reduction of NaBH4 agent in ethylene glycol. Analytical methods such as X-ray diffraction, transmission electron microscopy, and cyclic voltammetry were used for analysis and evaluation. The results showed that PtRu nanoparticles on activated CNTs were successfully synthesized. The PtRu/CNTs sample using activated carbon nanotubes for five hours at 50oC was the highest methanol oxidation ability.