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Hybrid Nanomaterials for Efficient Solar Fuels Generation

Title: Hybrid Nanomaterials for Efficient Solar Fuels Generation

Reporter:Chong-Yong Lee
           University of Wollongong             

Time: 16:30-17:30 4th October

Adress : Lujiaxi Building 202 meetingroom,Xiamen University

Abstract:
In natural photosynthesis, light is used for the production of chemical energy carriers to fuel biological activity. Artificial photosynthesis mimicking this process and may achieve greater efficiency than biological counterpart by rationally tuning the light absorption, charge separation and chemical catalysis processes. This presentation will summarize my recent research works on the synthesize of inorganic nanomaterials and their hybrid system with biological enzymes towards efficient solar fuel production. We have synthesized self-organized nanoporous materials, examining the impact of surface morphologies and the presence of trace impurity towards their electro- and photoelectrocatalytic performance.1-2 In the hybrid semi-artificial photosynthesis design, Photosystem II photoanodes was wiring to an ITO cathode with an immobilised hydrogenase.3 This semi-artificial water splitting cell demonstrates how we can harvest and utilise electrons generated during water oxidation at Photosystem II electrodes for the generation of renewable H2 with a wired hydrogenase, a pathway which is unavailable to natural biology. Furthermore, we have developed strategy of immobilised hydrogenase via TiO2 protective layer strategy on p-type semiconductor electrodes to promote light-driven reductive reactions.4 This will enabling the assembly of all enzymes based non-bias assisted full water splitting cell. Finally, I will also discuss our very recent work on the use of 3D printing technology to fabricate bioinspired architecture which provides beneficial features towards enhanced photoelectrochemical water splitting.

References
1. C.-Y Lee, K. Lee, P. Schmuki, Angew. Chem. Int. Ed., 2013, 52, 2077-2081.
2. C.-Y. Lee, L. Wang, Y. Kado, M.S. Killian, P. Schmuki, ChemSusChem, 2014, 7, 934-940.
3. D. Mersch, C.-Y. Lee, J.Z. Zhang, K. Brinkert, J.C. Fontecilla-Camps, A. Rutherford, E. Reisner, J. Am. Chem. Soc., 2015, 137, 8541-8549.
4. C.-Y. Lee, H.-S. Park, J.C. Fontecilla-Camps, E. Reisner, Angew. Chem. Int. Ed., 2016, 55, 5971-5974.

CV:
Dr. Chong-Yong Lee completed his PhD in electrochemistry at Monash University (Australia) under the supervision of Prof. Alan M. Bond. He joined Intelligent Polymer Resarch Institute (IPRI) in 2015 taking up a University of Wollongong Vice-Chancellor’s Research Fellowship position. Dr. Lee has significant research experience in the fields of electrochemistry, nanomaterials, oxide semiconductors, metalloenzymes, catalysis and solar fuels. His current research interests are the development of new materials for clean energy conversion and storage applications. In particular, he employed electrochemical and photoelectrochemical approaches for activation of small molecules such as H2O, O2, CO2 and formic acid to valuable fuels.

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Update time:2016/10/27 Author:admin Hit:435【Print