Facile synthesis of three-dimensional Au/C networks by directly carbonizing nanoporous block copolymers

Abstract

Porous carbonaceous networks decorated with functional nanoparticles are highly demanded in diverse applications as their good conductivity nature as well as cheap source offers a cost-affordable alternative among numerous options. In this work, we report a new and facile strategy to prepare three-dimensional (3D) Au/C networks comprised of carbonaceous skeletons and tiny gold nanoparticles by directly carbonizing the nanoporous block copolymer films complexed with the gold salts. The robust complexation makes it ease of generating numerous dispersed gold nanoparticles with an average diameter as small as approximate to 15 nm confined in the carbonaceous frameworks after carbonization. Thus-developed Au/C networks are highly expected to find widespread applications such as catalysis, sensing, etc. (C) 2019 Elsevier B.V. All rights reserved.