Synthesis of Ni/Graphene Nanocomposite for Hydrogen Storage

详细信息    查看全文

• 作者：Chunyu Zhou ; Jerzy A. Szpunar ; Xiaoyu Cui
• 刊名：ACS Applied Materials & Interfaces
• 出版年：2016
• 出版时间：June 22, 2016
• 年：2016
• 卷：8
• 期：24
• 页码：15232-15241
• 全文大小：687K
• 年卷期：0
• ISSN：1944-8252

文摘

We have designed a Ni–graphene composite for hydrogen storage with Ni nanoparticles of 10 nm in size, uniformly dispersed over a graphene substrate. This system exhibits attractive features like high gravimetric density, ambient conditions, and low activation temperature for hydrogen release. When charged at room temperature and an atmospheric hydrogen pressure of 1 bar, it could yield a hydrogen capacity of 0.14 wt %. When hydrogen pressure increased to 60 bar, the sorbent had a hydrogen gravimetric density of 1.18 wt %. The hydrogen release could occur at an operating temperature below 150 °C and completes at 250 °C.