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An Optically Transparent Iron Nickel Oxide Catalyst for Solar Water Splitting

An Optically Transparent Iron Nickel Oxide Catalyst for Solar Water Splitting

Carlos G Morales-Guio, Matthew T Mayer, Aswani Yella, S David Tilley, Michael Grätzel, Xile Hu

J Am Chem Soc. 2015 Aug 12;137(31):9927-36.

PMID: 26200221

Abstract:

Sunlight-driven water splitting to produce hydrogen fuel is an attractive method for renewable energy conversion. Tandem photoelectrochemical water splitting devices utilize two photoabsorbers to harvest the sunlight and drive the water splitting reaction. The absorption of sunlight by electrocatalysts is a severe problem for tandem water splitting devices where light needs to be transmitted through the larger bandgap component to illuminate the smaller bandgap component. Herein, we describe a novel method for the deposition of an optically transparent amorphous iron nickel oxide oxygen evolution electrocatalyst. The catalyst was deposited on both thin film and high-aspect ratio nanostructured hematite photoanodes. The low catalyst loading combined with its high activity at low overpotential results in significant improvement on the onset potential for photoelectrochemical water oxidation. This transparent catalyst further enables the preparation of a stable hematite/perovskite solar cell tandem device, which performs unassisted water splitting.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP12168546	Iron nickel oxide		12168-54-6	Price

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