Thermally modulated multilayered graphene oxide for hydrogen storage

被引：60

作者：

Kim, Byung Hoon ^{[1
,2
]}

Hong, Won G. ^{[1
]}

Yu, Han Young ^{[3
]}

Han, Young-Kyu ^{[1
]}

Lee, Sang Moon ^{[1
]}

Chang, Sung Jin ^{[1
]}

Moon, Hoi Ri ^{[2
]}

Jun, Yongseok ^{[2
]}

Kim, Hae Jin ^{[1
]}

机构：

[1] Korea Basic Sci Inst, Div Mat Sci, Taejon 305333, South Korea

[2] UNIST, KIER UNIST Adv Ctr Energy, Interdisciplinary Sch Green Energy, Ulsan 689798, South Korea

[3] Elect & Telecommun Res Inst, Next Generat Energy Technol Team, Taejon 305700, South Korea

来源：

PHYSICAL CHEMISTRY CHEMICAL PHYSICS | 2012年 / 14卷 / 04期

关键词：

GRAPHITE OXIDE; CARBON; PAPER; PHYSISORPTION; SPECTROSCOPY; REDUCTION;

D O I：

10.1039/c2cp23683d

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

We have obtained high pressure H-2 isotherms with respect to the interlayer distance of multilayered graphene oxide (GO) modulated by thermal annealing. The maximum storage capacity is 4.8 (0.5) wt% at 77 K (298 K) and at 9.0 MPa pressure. We found the optimum GO interlayer distance for maximum H2 uptake at 6.5 angstrom, similar to the predicted distances from first-principles calculations for graphite materials. Our results reveal that multilayered GO can be a practical material of choice to allow the use of graphene as a hydrogen storage material, provided that only small amounts of O and OH functional groups exist as spacers on GO sheets.

引用

页码：1480 / 1484

页数：5

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