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Oxygen-Generating Gel Systems Induced by Visible Light andApplication to Artificial Photosynthesis

Published online by Cambridge University Press:  17 January 2012

Kosuke Okeyoshi  and
Ryo Yoshida
Kosuke Okeyoshi
Affiliation:
RIKEN Advanced Science Institute Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo
Ryo Yoshida
Affiliation:
Department of Materials Engineering, Graduate School of Engineering, The University of Tokyo
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Abstract

Toward complete artificial photosynthesis systems to generate hydrogen andoxygen using visible light and water, we firstly design and fabricateoxygen-generating gel systems using the electrostatic interactions of ionicfunctional groups and steric effects of a polymer network. By using a graftpolymer chain with Ru(bpy)32+ units as sensitizers to closely arrange RuO2nanoparticles as catalyst, the functional groups transmit multiple electronscooperatively to generate oxygen. In this study, a novel strategy is shownto design a hierarchical network structure using colloidal nanoparticles andmacromonomers.

Keywords

biomimetic (chemical reaction)photochemicalpolymer

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Type
Articles
Information
MRS Online Proceedings Library (OPL) , Volume 1418: Symposium LL/MM – Gels and Biomedical Materials , 2012 , mrsf11-1418-ll01-04
Copyright
Copyright © Materials Research Society 2012

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References

REFERENCES

[1]Creutz, C., Sutin, N., Proc. Natl. Acad. Sci. USA 72, 2858 (1975).10.1073/pnas.72.8.2858CrossRefGoogle Scholar
[2]Kalyanasundaram, K., Grätzel, M., Angew. Chem. Int. Ed. 18, 701 (1979).10.1002/anie.197907011CrossRefGoogle Scholar
[3]Sun, L., Berglund, H., Davydov, R., Norrby, T., Hammarstrolm, L., Korall, P., Börje, A., Philouze, C., Berg, K., Tran, A., Andersson, M., Stenhagen, G., Mårtensson, J., Almgren, M., Styring, S., Åkermark, B., J. Am. Chem. Soc. 119, 6996 (1997).10.1021/ja962511kCrossRefGoogle Scholar
[4]Pillai, K. C., Kumar, A. S., Zen, J. M., J. Mol. Catal. A 160, 277 (2000).10.1016/S1381-1169(00)00262-4CrossRefGoogle Scholar
[5]Yagi, M., Kaneko, M., Chem. Rev. 101, 21 (2001).10.1021/cr980108lCrossRefGoogle Scholar
[6]Ruettinger, W., Yagi, M., Wolf, K., Bernasek, S., Dismukes, G. C., J. Am. Chem. Soc. 122, 10353 (2000).10.1021/ja0005587CrossRefGoogle Scholar
[7]Kokufuta, E., Tanaka, T., Macromolecules 24, 1605 (1991).10.1021/ma00007a024CrossRefGoogle Scholar
[8]Stayton, P. S., Shimoboji, T., Long, C., Chilkoti, A., Chen, G., Harris, J. M., Hoffman, A. S., Nature 378, 472 (1995).10.1038/378472a0CrossRefGoogle Scholar
[9]Yoshida, R., Uchida, K., Kaneko, Y., Sakai, K., Kikuchi, A., Sakurai, Y., Okano, T., Nature 374, 240 (1995).10.1038/374240a0CrossRefGoogle Scholar
[10] In the case of the gel system, the O2 gas was generated for ca. 4 h until the sacrificial oxidant, [Co(NH3)5Cl]2+ was consumed. [Co(NH3)5Cl]2+ is irreversively reduced (see Fig. 1). Google Scholar
[11]Okeyoshi, K., Yoshida, R., Adv. Funct. Mater. 20, 708 (2010).10.1002/adfm.200901166CrossRefGoogle Scholar
[12]Okeyoshi, K., Yoshida, R., Soft Matter 5, 4118 (2009).10.1039/b908144eCrossRefGoogle Scholar