American Chemical Society
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Fabrication of Transparent-Conducting-Oxide-Coated Inverse Opals as Mesostructured Architectures for Electrocatalysis Applications: A Case Study with NiO

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journal contribution
posted on 2014-08-13, 00:00 authored by Vennesa O. Williams, Erica J. DeMarco, Michael J. Katz, Joseph A. Libera, Shannon C. Riha, Dong Wook Kim, Jason R. Avila, Alex B. F. Martinson, Jeffrey W. Elam, Michael J. Pellin, Omar K. Farha, Joseph T. Hupp
Highly ordered, and conductive inverse opal arrays were made with silica and subsequently coated with tin-doped indium oxide (ITO) via atomic layer deposition (ALD). We demonstrate the utility of the resulting mesostructured electrodes by further coating them with nickel oxide via ALD. The NiO-coated arrays are capable of efficiently electrochemically evolving oxygen from water. These modular, crack-free, transparent, high surface area, and conducting structures show promise for many applications including electrocatalysis, photocatalysis, and dye-sensitized solar cells.