title: Synthesis of Ni/Graphene Nanocomposite for Hydrogen Storage.
abstract: 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.
authors.affiliation: Department of Mechanical Engineering, University of Saskatchewan , Saskatoon, SK, S7N 5A9, Canada.
authors.forename: Chunyu
authors.initials: C
authors.lastname: Zhou
authors.affiliation: Department of Mechanical Engineering, University of Saskatchewan , Saskatoon, SK, S7N 5A9, Canada.
authors.forename: Jerzy A
authors.initials: JA
authors.lastname: Szpunar
authors.affiliation: Canadian Light Source Inc. , Saskatoon, SK, S7N 2 V3, Canada.
authors.forename: Xiaoyu
authors.initials: X
authors.lastname: Cui
keywords: Ni/graphene; composite; gravimetric density; hydrogen storage; interface