Journal
CHEMELECTROCHEM
Volume 3, Issue 4, Pages 668-674Publisher
WILEY-V C H VERLAG GMBH
DOI: 10.1002/celc.201500536
Keywords
electrochemistry; hierarchical porosity; metal-organic framework; self-sacrificial template; two-dimensional carbons
Categories
Funding
- National Key Basic Research Program 973 [2014CB239701]
- NSFC [21173120, 51372116]
- Natural Science Foundation of Jiangsu Province [BK2011030, BK2011740, BK20151468]
- Fundamental Research Funds for the Central Universities of NUAA [NP2014403, NJ20140004]
- Priority Academic Program Development of Jiangsu Higher Education Institutions (PAPD)
- Jiangsu Innovation Program for Graduate Education [CXZZ13 0158]
- Outstanding Doctoral Dissertation in NUAA [BCXJ13-13]
- Foundation of Graduate Innovation Center in NUAA [kfjj130219]
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Metal-organic framework (MOF)-derived carbon materials exhibit large surface areas, but dominant micropore characteristics and uncontrollable dimensions. Herein, we propose a self-sacrificial template-directed synthesis method to engineer the porous structure and dimensions of MOF-derived carbon materials. A porous zinc oxide (ZnO) nanosheet solid is selected as the self-sacrificial template and two-dimensional (2D) nanostructure-directing agent to prepare 2D ZIF-8-derived carbon nanosheets (ZCNs). The as-prepared ZCN materials exhibit a large surface area with hierarchical porosity. These intriguing features render ZCN materials advanced electrode materials for electrochemical energy-storage devices, demonstrating large ion-accessible surface area and high ion-/electron-transport rates. This self-sacrificial template-directed synthesis method offers new avenues for rational engineering of the porous structure and dimensions of MOF-derived porous carbon materials, thus exploiting their full potential for electrochemical energy-storage devices.
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