Insights into the Oxidation Mechanism of sp2-sp3 Hybrid Carbon Materials: Preparation of a Water-Soluble 2D Porous Conductive Network and Detectable Molecule Separation

Siwei Yang; Yucheng Yang; Peng He; Gang Wang; Guqiao Ding; Xiaoming Xie

doi:10.1021/acs.langmuir.6b03937

Insights into the Oxidation Mechanism of sp²-sp³ Hybrid Carbon Materials: Preparation of a Water-Soluble 2D Porous Conductive Network and Detectable Molecule Separation

Langmuir. 2017 Jan 31;33(4):913-919. doi: 10.1021/acs.langmuir.6b03937. Epub 2017 Jan 18.

Authors

Siwei Yang^{1

2}, Yucheng Yang¹, Peng He¹, Gang Wang³, Guqiao Ding^{1

2}, Xiaoming Xie^{1

2}

Affiliations

¹ State Key Laboratory of Functional Materials for Informatics, Shanghai Institute of Microsystem and Information Technology, Chinese Academy of Science , Shanghai 200050, P. R. China.
² University of Chinese Academy of Sciences , Beijing 100049, P. R. China.
³ Department of Microelectronic Science and Engineering, Faculty of Science, Ningbo University , Ningbo 315211, P. R. China.

PMID: 28061027
DOI: 10.1021/acs.langmuir.6b03937

Abstract

A thorough investigation of the oxidation mechanism of sp²-sp³ hybrid carbon materials is helpful for the morphological trimming of graphene. Here, porous graphene (PGN) was obtained via a free radical oxidation process. We further demonstrated the difference between traditional and free radical oxidation processes in sp²-sp³ hybrid carbon materials. The sp³ part of graphene oxide was oxidized first, and well-crystallized sp² domains were reserved, which is different from the oxidation mechanism in a traditional approach. The obtained PGN shows excellent performance in the design of PGN-based detectable molecule separation or other biomedical applications.

Publication types

Research Support, Non-U.S. Gov't