随着社会与科技的发展,不可再生的化石能源被大量消耗,随之而来的能源危机及环境问题日益突出。生物质能源是一种绿色环保的可再生......

The Ni-Al alloy containing Cr,Fe additives were prepared as Raney Ni Catalyst by high energy milling.The size and surfac......