Nano-Engineered Spacing in Graphene Sheets for Hydrogen Storage

被引：62

作者：

Jin, Zhong ^{[1
]}

Lu, Wei ^{[1
]}

O'Neill, Kevin J. ^{[2
]}

Parilla, Philip A. ^{[2
]}

Simpson, Lin J. ^{[2
]}

Kittrell, Carter ^{[1
]}

Tour, James M. ^{[1
]}

机构：

[1] Rice Univ, Smalley Inst Nanoscale Sci & Technol, Dept Chem & Mech Engn & Mat Sci, Houston, TX 77005 USA

[2] Natl Renewable Energy Lab, Golden, CO 80401 USA

来源：

CHEMISTRY OF MATERIALS | 2011年 / 23卷 / 04期

关键词：

METAL-ORGANIC FRAMEWORKS; ACTIVATED CARBONS; GRAPHITE; OXIDE;

D O I：

10.1021/cm1025188

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：

Thermally exfoliated graphene (TEG) sheets were functionalized and cross-linked by in situ diazonium reactions in super acids. The degree of functionalization was monitored by X-ray photoelectron spectroscopy, Fourier transform infrared spectroscopy, and thermogravimetric analysis. Compared with the original TEG material, the functionalized TEGs show improved hydrogen uptake capacities, which could be attributed to the proppant effect of the grafted functional groups and charge transfer between the sulfonic addends and the graphene sheets. This method provides a possible route to further increase the hydrogen storage capacity of graphene materials by cross-linking and nanospace engineering. © Published 2011 by the American Chemical Society.

引用

页码：923 / 925

页数：3

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