Confined Pyrolysis of ZIF-8 Polyhedrons Wrapped with Graphene Oxide Nanosheets to Prepare 3D Porous Carbon Heterostructures

Bing Ding; Zengjie Fan; Qingyang Lin; Jie Wang; Zhi Chang; Tao Li; Joel Henzie; Jeonghun Kim; Hui Dou; Xiaogang Zhang; Yusuke Yamauchi

doi:10.1002/smtd.201900277

Confined Pyrolysis of ZIF-8 Polyhedrons Wrapped with Graphene Oxide Nanosheets to Prepare 3D Porous Carbon Heterostructures

Bing Ding, Zengjie Fan, Qingyang Lin, Jie Wang, Zhi Chang, Tao Li, Joel Henzie, Jeonghun Kim, Hui Dou, Xiaogang Zhang, Yusuke Yamauchi

Department of Chemical and Biomolecular Engineering

Research output: Contribution to journal › Article › peer-review

21 Citations (Scopus)

Abstract

Heterostructured materials are interesting because they may combine two or more material building blocks that together generate new types of heterointerfaces with unusual properties. Using them to construct large-scale 3D frameworks further extends their utility in electrochemical applications because it exposes more interfaces and active sites. In this study, electrostatic interactions are used to wrap polyhedra particles of zeolitic imidazolate frameworks with graphene oxide (GO) nanosheets to prepare the composite structure. Pyrolyzing this structure generates a 3D porous carbon framework (PCF) composed of polyhedral-shaped hollow carbon coated with reduced GO. The size of the polyhedral macropores can be adjusted from nanometer scale to micrometer scale. The PCFs generate a continuous network of heterostructured carbon with a large surface area and large pore volumes that are particularly useful as porous electrodes in lithium–sulfur batteries. The PCF/S composite electrode exhibits a high discharge capacity of 1151 mAh g⁻¹ at 1 C and a low capacity decay of 0.035% per cycle after 650 cycles.

Original language	English
Article number	1900277
Journal	Small Methods
Volume	3
Issue number	11
DOIs	https://doi.org/10.1002/smtd.201900277
Publication status	Published - 2019 Nov 1

Bibliographical note

Funding Information:
B.D. and Z.J.F. contributed equally to this work. The work was funded by Natural Science Foundation of Jiangsu Province (no. BK20170778), NSFC (no. 21773118, U1802256), and Australian Research Council (ARC) Future Fellow (Grant FT150100479). This work was performed in part at the Queensland node of the Australian National Fabrication Facility, a company established under the National Collaborative Research Infrastructure Strategy to provide nano- and micro-fabrication facilities for Australia's researchers. B.D. also gratefully acknowledges China Postdoctoral Science Foundation (2018M632300), open fund of Jiangsu Key Laboratory of Precision and Micro-Manufacturing Technology, and Fujian Provincial Key Laboratory of Functional Materials and Applications.

Publisher Copyright:
© 2019 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim

All Science Journal Classification (ASJC) codes

Chemistry(all)
Materials Science(all)

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10.1002/smtd.201900277

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title = "Confined Pyrolysis of ZIF-8 Polyhedrons Wrapped with Graphene Oxide Nanosheets to Prepare 3D Porous Carbon Heterostructures",

abstract = "Heterostructured materials are interesting because they may combine two or more material building blocks that together generate new types of heterointerfaces with unusual properties. Using them to construct large-scale 3D frameworks further extends their utility in electrochemical applications because it exposes more interfaces and active sites. In this study, electrostatic interactions are used to wrap polyhedra particles of zeolitic imidazolate frameworks with graphene oxide (GO) nanosheets to prepare the composite structure. Pyrolyzing this structure generates a 3D porous carbon framework (PCF) composed of polyhedral-shaped hollow carbon coated with reduced GO. The size of the polyhedral macropores can be adjusted from nanometer scale to micrometer scale. The PCFs generate a continuous network of heterostructured carbon with a large surface area and large pore volumes that are particularly useful as porous electrodes in lithium–sulfur batteries. The PCF/S composite electrode exhibits a high discharge capacity of 1151 mAh g−1 at 1 C and a low capacity decay of 0.035% per cycle after 650 cycles.",

author = "Bing Ding and Zengjie Fan and Qingyang Lin and Jie Wang and Zhi Chang and Tao Li and Joel Henzie and Jeonghun Kim and Hui Dou and Xiaogang Zhang and Yusuke Yamauchi",

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AU - Wang, Jie

AU - Chang, Zhi

AU - Li, Tao

AU - Henzie, Joel

AU - Kim, Jeonghun

AU - Dou, Hui

AU - Zhang, Xiaogang

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N2 - Heterostructured materials are interesting because they may combine two or more material building blocks that together generate new types of heterointerfaces with unusual properties. Using them to construct large-scale 3D frameworks further extends their utility in electrochemical applications because it exposes more interfaces and active sites. In this study, electrostatic interactions are used to wrap polyhedra particles of zeolitic imidazolate frameworks with graphene oxide (GO) nanosheets to prepare the composite structure. Pyrolyzing this structure generates a 3D porous carbon framework (PCF) composed of polyhedral-shaped hollow carbon coated with reduced GO. The size of the polyhedral macropores can be adjusted from nanometer scale to micrometer scale. The PCFs generate a continuous network of heterostructured carbon with a large surface area and large pore volumes that are particularly useful as porous electrodes in lithium–sulfur batteries. The PCF/S composite electrode exhibits a high discharge capacity of 1151 mAh g−1 at 1 C and a low capacity decay of 0.035% per cycle after 650 cycles.

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Confined Pyrolysis of ZIF-8 Polyhedrons Wrapped with Graphene Oxide Nanosheets to Prepare 3D Porous Carbon Heterostructures

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