A General Approach to Direct Growth of Oriented Metal-Organic Framework Nanosheets on Reduced Graphene Oxides

Chao Liu; Xiaodan Huang; Jizi Liu; Jing Wang; Zibin Chen; Rui Luo; Chaohai Wang; Jiansheng Li; Lianjun Wang; Jingjing Wan; Chengzhong Yu

doi:10.1002/advs.201901480

A General Approach to Direct Growth of Oriented Metal-Organic Framework Nanosheets on Reduced Graphene Oxides

Adv Sci (Weinh). 2020 Jan 3;7(4):1901480. doi: 10.1002/advs.201901480. eCollection 2020 Feb.

Authors

Chao Liu^{1

2

3}, Xiaodan Huang³, Jizi Liu⁴, Jing Wang^{1

2

3}, Zibin Chen⁵, Rui Luo², Chaohai Wang², Jiansheng Li², Lianjun Wang², Jingjing Wan¹, Chengzhong Yu^{1

3}

Affiliations

¹ School of Chemistry and Molecular Engineering East China Normal University Shanghai 200241 P. R. China.
² Jiangsu Key Laboratory of Chemical Pollution Control and Resources Reuse School of Environmental and Biological Engineering Nanjing University of Science and Technology Nanjing 210094 P. R. China.
³ Australian Institute for Bioengineering and Nanotechnology The University of Queensland Brisbane QLD 4072 Australia.
⁴ Herbert Gleiter Institute of Nanoscience Nanjing University of Science and Technology Nanjing 210094 P. R. China.
⁵ Scitek Australia Pty Ltd Unit 1, 12 Chaplin Drive Lane Cove NSW 2066 Australia.

Abstract

Ultrathin metal-organic framework nanosheets (UMOFNs) deposited on graphene are highly attractive, however direct growth of UMOFNs on graphene with controlled orientations remains challenging. Here, a low-concentration-assisted heterogeneous nucleation strategy is reported for the direct growth of UMOFNs on reduced graphene oxides (rGO) surface with controllable orientations. This general strategy can be applied to construct various UMOFNs on rGO, including Co-ZIF, Ni-ZIF, Co, Cu-ZIF and Co, Fe-ZIF. When UMOFNs are mostly attached perpendicularly on rGO, a 3D foam-like hierarchical architecture (named UMOFNs@rGO-F) is formed with an open pore structure and excellent conductivity, showing excellent performance as electrode materials for Li-ion batteries and oxygen evolution. The contribution has provided a strategy for improving the electrochemical performance of MOFs in energy storage applications.

Keywords: electrochemical application; graphene oxide; metal–organic frameworks; nanosheets.