Thermal Exfoliation of Layered Metal–Organic Frameworks into Ultrahydrophilic Graphene Stacks and Their Applications in Li–S Batteries

Hao GP, Tang C, Zhang E, Zhai P, Yin J, Zhu W, Zhang Q, Kaskel S (2017)

Publication Type: Journal article

Publication year: 2017

Journal

Advanced Materials Wiley

Book Volume: 29

Article Number: 1702829

Journal Issue: 37

DOI: 10.1002/adma.201702829

Abstract

2D nanocarbon-based materials with controllable pore structures and hydrophilic surface show great potential in electrochemical energy storage systems including lithium sulfur (Li–S) batteries. This paper reports a thermal exfoliation of metal–organic framework crystals with intrinsic 2D structure into multilayer graphene stacks. This family of nanocarbon stacks is composed of well-preserved 2D sheets with highly accessible interlayer macropores, narrowly distributed 7 Å micropores, and ever most polar pore walls. The surface polarity is quantified both by its ultrahigh water vapor uptake of 14.3 mmol g⁻¹ at low relative pressure of P/P0 = 0.4 and ultrafast water wetting capability in less than 10.0 s. Based on the structural merits, this series hydrophilic multilayer graphene stack is showcased as suitable model cathode host for unveiling the challenging surface chemistry issue in Li–S batteries.

Involved external institutions

Technische Universität Dresden

Germany (DE) Tsinghua University

China (CN) University of Manchester

United Kingdom (GB) Qufu Normal University / 曲阜师范大学

China (CN)

How to cite

APA:

Hao, G.-P., Tang, C., Zhang, E., Zhai, P., Yin, J., Zhu, W.,... Kaskel, S. (2017). Thermal Exfoliation of Layered Metal–Organic Frameworks into Ultrahydrophilic Graphene Stacks and Their Applications in Li–S Batteries. Advanced Materials, 29(37). https://doi.org/10.1002/adma.201702829

MLA:

Hao, Guang-Ping, et al. "Thermal Exfoliation of Layered Metal–Organic Frameworks into Ultrahydrophilic Graphene Stacks and Their Applications in Li–S Batteries." Advanced Materials 29.37 (2017).

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