Pt Hollow Nanospheres: Facile Synthesis and Enhanced Electrocatalysts

摘要

Considerable attention has been paid to alternative energy sources such as hydrogen and fuel cells as energy sources in an attempt to relieve the pollution and energy crisis. Among various candidates, Pt has stimulated considerable research into its use as a catalyst in the production of hydrogen from methane, in automobile catalytic converters, and particularly in the direct methanol fuel cell (DMFC). However, a critical problem with Pt-based catalysts is their prohibitive cost. Therefore, economical and effective alternative catalysts are required and cost-effective routes are being sought to make more-efficient Pt catalysts. To date, efforts have focused on the development of techniques to produce Pt catalysts with a high surface area to achieve high catalytic performance and utilization efficiency.