Interaction of reduced graphene oxide with free radicals and silver clusters

被引：19

作者：

Chadha, Ridhima ^{[1
]}

Biswas, Nandita ^{[1
]}

Markad, Ganesh B. ^{[2
]}

Haram, Santosh K. ^{[2
]}

Mukherjee, Tulsi ^{[1
]}

Kapoor, Sudhir ^{[1
]}

机构：

[1] Bhabha Atom Res Ctr, Radiat & Photochem Div, Bombay 400085, Maharashtra, India

[2] Univ Pune, Dept Chem, Pune 411007, Maharashtra, India

来源：

CHEMICAL PHYSICS LETTERS | 2012年 / 529卷

关键词：

METAL NANOPARTICLES; ANCHORING SEMICONDUCTOR; CHEMICAL-REDUCTION; AQUEOUS-SOLUTIONS; METHYL VIOLOGEN; RATE CONSTANTS; SINGLE-LAYER; ELECTRONS;

D O I：

10.1016/j.cplett.2012.01.045

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：

We have succeeded in studying primary free radical reactions towards reduced graphene oxide (RGO) using pulse radiolysis technique. The ability of RGO to quench hydrated electron, e(aq)(-), can be visualized as a process to store electrons. Low reactivity of (OH)-O-center dot and (SCN)(2)(center dot-) radicals towards RGO shows that coxidation process can be minimized at the surface of RGO. Moreover, it is found that methyl viologen radical also shows low reactivity towards RGO. Further, using RGO as a two-dimensional support, transient absorption spectra of Ag clusters show that stabilization of Ag-2(+) cluster occurs at the surface of RGO as compared to neat aqueous solution. (C) 2012 Elsevier B. V. All rights reserved.

引用

页码：54 / 58

页数：5

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