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High-Throughput Continuous Hydrothermal Synthesis of an Entire Nanoceramic Phase Diagram

DOI: 10.1021/cc900041a DOI Help
PMID: 19594110 PMID Help

Authors: Xiaole Weng (University College London) , Geoffrey Hyett (University College London) , Martin Vickers (University College London) , Paul Boldrin (University College London) , Chiu Tang (Diamond Light Source) , Stephen Thompson (Diamond Light Source) , Jonathan Knowles (UCL Eastman Dental Institute) , Ihtesham Rehman (Queen Mary University of London) , Ivan Parkin (University College London) , Julian R. G. Evans (University College London) , Jawwad Darr (University College London) , J K Cockcroft (University College London) , Julia Parker (Diamond Light Source)
Co-authored by industrial partner: No

Type: Journal Paper
Journal: Journal Of Combinatorial Chemistry , VOL 11 (5) , PAGES 829-834

State: Published (Approved)
Published: July 2009

Abstract: A novel High-Throughput Continuous Hydrothermal (HiTCH) flow synthesis reactor was used to make directly and rapidly a 66-sample nanoparticle library (entire phase diagram) of nanocrystalline Ce(x)Zr(y)Y(z)O(2-delta) in less than 12 h. High resolution PXRD data were obtained for the entire heat-treated library (at 1000 degrees C/I h) in less than a day using the new robotic beamline III, located at Diamond Light Source (DLS). This allowed Rietveld-quality powder X-ray diffraction (PXRD) data collection of the entire 66-sample library in <1 day. Consequently, the authors rapidly mapped Out phase behavior and sintering behaviors for the entire library. Out of the entire 66-sample heat-treated library, the PXRD data suggests that 43 possess the fluorite structure, of which 30 (out of 36) are tertiary compositions. The speed, quantity and quality of data obtained by our new approach, offers an exciting new development which will allow structure-property relationships to be accessed for nanoceramics in much shorter time periods.

Subject Areas: Chemistry

Instruments: I11-High Resolution Powder Diffraction