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A simple and efficient hydrogen production-storage hybrid system (Co/TiO2) for synchronized hydrogen photogeneration with uptake

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Abstract

The production and storage of hydrogen are the two most critical challenges for hydrogen energy development. In addition, converting H2 from the as-obtained gas state to a stable storage state consumes excess energy and increases the practical cost of hydrogen fuel. Accordingly, we now present a simple hybrid material system (Co/TiO2) that efficiently synchronizes hydrogen photogeneration in water with its room-temperature storage. In the composite, through a series of carefully controlled experiments, ultrathin Co shells composed of 1, 2, 4, and 9 atom layers have been fabricated on TiO2 photocatalysts. Before saturation of hydrogen on metal Co, the hydrogen storage efficiency is close to 100%, meaning that nearly all hydrogen generated by photocatalytic water splitting is conserved. This work provides a new approach to combined structure-function design technology in the hydrogen energy field.

Graphical abstract: A simple and efficient hydrogen production-storage hybrid system (Co/TiO2) for synchronized hydrogen photogeneration with uptake

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Publication details

The article was received on 24 Jan 2017, accepted on 06 Apr 2017 and first published on 06 Apr 2017


Article type: Paper
DOI: 10.1039/C7TA00818J
Citation: J. Mater. Chem. A, 2017, Advance Article
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    A simple and efficient hydrogen production-storage hybrid system (Co/TiO2) for synchronized hydrogen photogeneration with uptake

    Y. Yang, P. Gao, Y. Wang, L. Sha, X. Ren, J. Zhang, P. Yang, T. Wu, Y. Chen and X. Li, J. Mater. Chem. A, 2017, Advance Article , DOI: 10.1039/C7TA00818J

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