Quantification of surface functionalities on graphene, boron nitride and borocarbonitrides by fluorescence labeling

被引：19

作者：

Barua, Manaswee ^{[1
]}

Sreedhara, M. B. ^{[1
]}

Pramoda, K. ^{[1
]}

Rao, C. N. R. ^{[1
]}

机构：

[1] Jawaharlal Nehru Ctr Adv Sci Res, New Chem Unit, Chem & Phys Mat Unit, Int Ctr Mat Sci,CSIR Ctr Excellence Chem & Sheikh, Bangalore 560064, Karnataka, India

来源：

CHEMICAL PHYSICS LETTERS | 2017年 / 683卷

关键词：

Graphene; Boron nitride; Borocarbonitrides; Surface functionalities; Fluorescence labeling; WALLED CARBON NANOTUBES; CHEMICAL-ANALYSIS; POLYMER SURFACES;

D O I：

10.1016/j.cplett.2017.02.028

中图分类号：

O64 [物理化学（理论化学）、化学物理学];

学科分类号：

070304 ; 081704 ;

摘要：

Considering the important role played by surface functionalities, we have obtained quantitative estimates of the functionalities on graphene, BN and borocarbonitrides, by employing fluorescence labeling. Thus, the surface concentrations of carbonyl, carboxylic and hydroxyl groups on the graphene surface are 2.31 x 10(20), 28.17 x 10(20) and 0.08 x 10(20) per gram respectively. We do not observe carbonyl groups on reduced graphene oxide. The surface concentration of the amine group on BN is 0.01 x 10(20) per gram. Borocarbonitrides contain amine and oxygen functionalities, with composition dependent concentrations. Supercapacitor performance and ORR activity of the borocarbonitrides are presented along with their surface areas. (C) 2017 Elsevier B.V. All rights reserved.

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页码：459 / 466

页数：8

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