Nickel addition to optimize the hydrogen storage performance of lithium intercalated fullerides

被引：5

作者：

Aramini, Matteo ^{[1
,2
]}

Magnani, Giacomo ^{[2
]}

Pontiroli, Daniele ^{[2
]}

Milanese, Chiara ^{[3
,4
]}

Girella, Alessandro ^{[3
,4
]}

Bertoni, Giovanni ^{[5
,6
]}

Gaboardi, Mattia ^{[2
,7
]}

Zacchini, Stefano ^{[8
]}

Marini, Amedeo ^{[3
,4
]}

Ricco, Mauro ^{[2
]}

机构：

[1] Diamond Light Source, Harwell Sci & Innovat Campus, Didcot OX11 0DE, Oxon, England

[2] Univ Parma, Nanocarbon Lab, Dipartimento Sci Matemat Fis & Informat, Parco Area Sci 7-A, I-43124 Parma, Italy

[3] Univ Pavia, Pavia Hydrogen Lab, CSGI, Viale Taramelli 16, I-27100 Pavia, Italy

[4] Univ Pavia, Dipartimento Chim, Sez Chim Fis, Viale Taramelli 16, I-27100 Pavia, Italy

[5] CNR, IMEM, Parco Area Sci 37-A, I-43124 Parma, Italy

[6] CNR, Ist Nanosci, Via Campi 213-A, I-41125 Modena, Italy

[7] Elettra Sinctrotrone Trieste SCpA, Parco Area Sci SS14,Km 163-5, I-34012 Basovizza, Italy

[8] Univ Bologna, Dipartimento Chim Ind, Viale Risorgimento 4, I-40136 Bologna, Italy

来源：

MATERIALS RESEARCH BULLETIN | 2020年 / 126卷

关键词：

Hydrogen-storage; Transition metal decoration; Lithium fullerides; Nickel nanoparticles; DYNAMICS; ADSORPTION; GRAPHENE; KINETICS; SODIUM; HYDROFULLERENE; DISSOCIATION; MECHANISM; FULLERENE; LI12C60;

D O I：

10.1016/j.materresbull.2020.110848

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

The addition of transition metals to alkali intercalated fullerides proved to enhance their already good hydrogen absorption properties. Herein we present a study based on two different synthetic strategies, allowing the addition of nickel as aggregates with different size to the lithium fulleride Li6C60: the former is based on the metathesis of nickel chloride, while the latter on the thermal decomposition of nickel carbonyl clusters. The hydrogen-storage properties of the obtained materials have been investigated with manometric and calorimetric measurements, which indicated a clear enhancement of the final absorption value and kinetics with respect to pristine Li6C60, as a consequence of nickel surface catalytic activity towards hydrogen molecules dissociation. We found up to 10 % increase of the total H-2 weight % absorbed (5.5 wt% H-2) in presence of Ni aggregates. Furthermore, the control of the transition metal particles size distribution allowed reducing the hydrogen desorption enthalpy of the systems.

引用

页数：8

共 56 条

[1] Muon spin relaxation reveals the hydrogen storage mechanism in light alkali metal fullerides [J].