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Sustainable Catalysis for Renewable Energy Generation

Sustainable Catalysis for Renewable Energy Generation. Chris Hinde, Dr. Robert Raja 1 , Prof. Andy Hor 2 , Prof. Ajit Shenoi 3. Chemistry, University of Southampton, UK Institute of Materials Research and Engineering (IMRE), Singapore Southampton Marine and Maritime Institute (SMMI), UK.

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Sustainable Catalysis for Renewable Energy Generation

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  1. Sustainable Catalysis for Renewable Energy Generation Chris Hinde, Dr. Robert Raja1, Prof. Andy Hor2, Prof.Ajit Shenoi3 Chemistry, University of Southampton, UK Institute of Materials Research and Engineering (IMRE), Singapore Southampton Marine and Maritime Institute (SMMI), UK

  2. Materials with Porous Architectures • Porous materials can be engineered as catalysts • High surface areas • Inorganic Frameworks ca. 100-600 m3/g • Metal-organic Frameworks (MOFs) up to 10 400 m3/g • Maximise framework – substrate interactions • High potential for strategic positioning of active sites within frameworks

  3. Hybrid Synergy with MOFs and Metal Phosphate Materials • PhotocatalyticOxidation of Water • H2Storage and CO2 capture • Gas release mechanisms [Co(II)-(PO3F)]4F[PO2F2]2.H2O MOF-500 - [(Fe3O)4 (SO4)12(BPDC)6 (BPE)6] • MOFs and ZIFS • Hierarchical formation of pores (4 different cavity sizes) • High tunability from organic linkers and metal centres • Potential for functionalization and selectivity control • Metal Phosphate Frameworks • Stabilization of complex anions in open-framework phosphate architectures (M = Mn3+, Fe3+, Co2+, Cu2+) etc. • Potential for fluorine incorporation • Multi-metallic combinations Synergy

  4. Current Status on Photolysis of Water using Porous Framework Materials • Examples that highlight the promise of MOFs as water oxidation photocatalysts include: • A Zr-terephthalate based MOF has been shown to have a quantum efficiency of 3.5%[1] (compared with rutile TiO2 of 8%) • A framework incorporated organometallic iridium species has shown promise forwater oxidation, with heterogeneity allowing for recycling of the catalyst[2] Model of Iridium complex doped into a UiO-67 Framework • With a vast diversity of MOF structures, there is a vast untapped potential for hydrogen generation using MOF photocatalysts [1] C. Gomes Silva, I. Luz, F. X. Llabrés i Xamena, A. Corma, H. García, Chem. Eur. J., 2010, 16, 11133. [2] C. Wang, Z. Xie, K. E. deKrafft, W. Lin, J. Am. Chem. Soc., 2011, 133, 13445.

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