Bistability and pH hysteresis of graphene oxide solution in circle acid-base titration

Qiang Zhuang; Heguang Liu; Tiehu Li; Tingkai Zhao

doi:10.1246/cl.141144

Bistability and pH hysteresis of graphene oxide solution in circle acid-base titration

Qiang Zhuang, Heguang Liu, Tiehu Li, Tingkai Zhao

School of Materials Sience and Engineering

Northwestern Polytechnical University Xian

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

2 Scopus citations

Abstract

Although the dispersion of graphene oxide in solution has been well studied, there still exists mysteries. Here the graphene oxide was synthesized by the modified Hummers method. By the circle acid-base titration, we reported a bistable and pH hysteretic behavior of the graphene oxide in aqueous solution. To interpret the phenomena, a varying pK_a mechanism based on the self-assembly of graphene oxide sheets in the circle titration is proposed.

Original language	English
Pages (from-to)	454-456
Number of pages	3
Journal	Chemistry Letters
Volume	44
Issue number	4
DOIs	https://doi.org/10.1246/cl.141144
State	Published - 2015

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title = "Bistability and pH hysteresis of graphene oxide solution in circle acid-base titration",

abstract = "Although the dispersion of graphene oxide in solution has been well studied, there still exists mysteries. Here the graphene oxide was synthesized by the modified Hummers method. By the circle acid-base titration, we reported a bistable and pH hysteretic behavior of the graphene oxide in aqueous solution. To interpret the phenomena, a varying pKa mechanism based on the self-assembly of graphene oxide sheets in the circle titration is proposed.",

author = "Qiang Zhuang and Heguang Liu and Tiehu Li and Tingkai Zhao",

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AU - Zhuang, Qiang

AU - Liu, Heguang

AU - Li, Tiehu

AU - Zhao, Tingkai

PY - 2015

Y1 - 2015

N2 - Although the dispersion of graphene oxide in solution has been well studied, there still exists mysteries. Here the graphene oxide was synthesized by the modified Hummers method. By the circle acid-base titration, we reported a bistable and pH hysteretic behavior of the graphene oxide in aqueous solution. To interpret the phenomena, a varying pKa mechanism based on the self-assembly of graphene oxide sheets in the circle titration is proposed.

AB - Although the dispersion of graphene oxide in solution has been well studied, there still exists mysteries. Here the graphene oxide was synthesized by the modified Hummers method. By the circle acid-base titration, we reported a bistable and pH hysteretic behavior of the graphene oxide in aqueous solution. To interpret the phenomena, a varying pKa mechanism based on the self-assembly of graphene oxide sheets in the circle titration is proposed.

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DO - 10.1246/cl.141144

M3 - 文章

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VL - 44

SP - 454

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JO - Chemistry Letters

JF - Chemistry Letters

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Bistability and pH hysteresis of graphene oxide solution in circle acid-base titration

Abstract

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