Issue 30, 2017, Issue in Progress

An easily modified method using FeCl3 to synthesize nanoporous gold with a high surface area

Abstract

Here, we report a two-step dealloying method using ferric chloride to synthesize nanoporous gold (NPG), instead of the traditional corrosive nitric acid method. In the new method, the pore size can be easily controlled by using various solutions and additives. For example, when using ethylene glycol (EG) as a solvent, the NPG (NPG-EG) pore size can be made as small as 8 nm, thus increasing the electrochemical specific surface area of the NPG to seven times higher than that of traditional NPG with a pore size of 25 nm. NPG-EG showed an enhanced capacitance of 1340 F g−1 at a current density of 2.0 A g−1 when electrodeposited with Ni3S2.

Graphical abstract: An easily modified method using FeCl3 to synthesize nanoporous gold with a high surface area

Supplementary files

Article information

Article type
Paper
Submitted
14 Feb 2017
Accepted
18 Mar 2017
First published
27 Mar 2017
This article is Open Access
Creative Commons BY-NC license

RSC Adv., 2017,7, 18327-18332

An easily modified method using FeCl3 to synthesize nanoporous gold with a high surface area

K. Shao, C. Fang, Y. Yao, C. Zhao, Z. Yang, J. Liu and Z. Zou, RSC Adv., 2017, 7, 18327 DOI: 10.1039/C7RA01862B

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