一、前言氢作为未来的能源是大有前途的,这不但因为化石燃料的世界储量日趋减少,而且随着工业的日益发展,化石燃料燃烧后造成很大的污染,破坏了自然界的生态平衡。氢特别引人注目的是能源储量极广,取自于水燃烧生成物仍然是水。而且氢的单位重量的热能很高是汽油热能的3倍。因之人们往往叫“氢能”谓不受自然环境限制的无公害的清洁能源。 I. INTRODUCTION Hydrogen as a future energy source is promising, not only because of the declining reserves of fossil fuels in the world, but also with the continuous development of industry, fossil fuels cause great pollution after they are burned, destroying the ecological balance in nature. Hydrogen is particularly noticeable because of its extremely high energy reserves, which is derived from the fact that water-burning products are still water. And the high thermal energy per unit weight of hydrogen is three times the thermal energy of gasoline. Because of these people often called “hydrogen energy” pollution-free clean energy that is not limited by the natural environment.