要把气体的化学能直接转变为电能——这是科学家们长久的梦想,实验室中多年的珍贵课题——现已经被可经济的创造出数千瓦功率的燃料电池所实践了.燃料电池的最近设计是一种采用一些特殊接触剂,多孔性碳空心电极密封于以氢氧化钾为电解液的电池中.氢与氧分别通过这空心电极,将 The direct conversion of gas chemistry into electricity - a long-cherished dream for scientists and a precious subject for many years in the laboratory - has now been practiced with fuel cells that economically create kilowatts of power. The recent design is a use of some special contact agent, porous carbon hollow electrode sealed in potassium hydroxide as the electrolyte in the battery through the hollow electrode of hydrogen and oxygen will be