We would like to thank Dr. Yoshitoki Iijima and Masahide Shima (JEOL, Ltd.) for carrying out the XPS depth investigation and AES and Yoshinari Misaki (Tokyo Metropolitan University) for performing the high-resolution TEM and EDS investigations.
Anodization of Gold in Oxalate Solution To Form a Nanoporous Black Film†
Article first published online: 12 JAN 2011
Copyright © 2011 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim
Angewandte Chemie International Edition
Volume 50, Issue 7, pages 1603–1607, February 11, 2011
How to Cite
Nishio, K. and Masuda, H. (2011), Anodization of Gold in Oxalate Solution To Form a Nanoporous Black Film. Angew. Chem. Int. Ed., 50: 1603–1607. doi: 10.1002/anie.201005700
- Issue published online: 9 FEB 2011
- Article first published online: 12 JAN 2011
- Manuscript Revised: 2 NOV 2010
- Manuscript Received: 11 SEP 2010
- carboxylic acids;
- nanoporous materials;
Black gold, but no oil: A nanoporous black gold film was formed by the anodization of gold in oxalate solution. The film had a spongelike porous configuration with a uniform hole size of approximately 20 nm (see picture). The formation mechanism has not yet been clarified, but carbonaceous matter produced by the anodic reaction of oxalate ions likely contributes to the growth of numerous nanopores on the gold anode.