[ASC-list] Brisbane Seminar Novel catalytic Materials for environment and energy
jayne.keane at qm.qld.gov.au
Tue Oct 30 23:21:43 UTC 2012
AIBN Special Seminar: Prof Junhu Wang, Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian China
Title: Novel catalytic Materials for environment and energy.
Date: Friday 2 November
Venue: AIBN, Level 1 Seminar Room
Recent years, our research focus on the development & characterization of the novel nano-composite materials applied for environmental purification and energy catalysis. Our main research topics:
1) In situ Mössbauer investigation combined with other spectroscopic studies (such as XAFS and so on) on the structural properties and mechanism of iron and/or tin containing catalytic materials;
2) Nano catalytic materials of noble metal with special morphology;
3) Hydroxyapatite-based catalytic materials with high efficiency.
This talk is to present a highly active and sintering-resistant Au/FeOx-hydroxyapatite catalyst for CO oxidation.
Despite of the high activity and extensive potential applications of supported gold catalyst, one problem is the sintering of nano-gold at high temperatures (e.g. ≥ 400 oC), which will constrain its practical applications. Several strategies such as utilizing mesoporous materials to confine gold particles, using mixed or surface-modified oxide supports, developing new supports like metal phosphates have been adopted to address this problem. These strategies certainly improve the anti-sintering ability at high temperatures. However, they usually arouse other problems such as use of expensive precursor, decrease of activity and/or even deactivation on stream. Therefore, it is still a challenge issue and remains large space to explore new material and/or new method for gold catalyst preparation to address this problem.
Recently, hydroxyapatite [HAP, Ca10(PO4)6(OH)2] based functional materials have attracted more and more attentions as recyclable catalysts and/or catalyst carriers due to its structural designability, bifunctionality, adsorption and ion-exchange ability. HAP contains abundance of PO43- and OH- group, both of which were found to enhance the stability of gold nano-particles/clusters against sintering at elevated temperatures. Therefore, to utilize the advantage of HAP based materials to enhance the stability of gold nanoparticles appears much attractive. Herein, we developed a FeOx modified HAP supported Au catalyst (Au/FeOx-HAP), which possesses high activity and durability for CO oxidation and strong stability against sintering at elevated temperatures.
● B. S. in Radiochemistry, Lanzhou University, China, 1991
● Junior Researcher, Japan Atomic Energy Research Institute, 1998-2001
● Ph. D. in Chemistry, Toho University, Japan, 2002
● Postdoctoral Researcher, NIMS & AIST, Japan, 2002-2004
● Research & Teaching Assistant, Chukyo University, Japan, 2004-2007
● Professor, DICP, CAS, China, 2008-current
● General Secretary, MEDC, 2010-current
● Editor, Mössbauer Effect Reference and Data Journal (ISSN0163-9587)
● Vice-chairman, 8th International Symposium on the Industrial Applications of the Mössbauer Effect (ISIAME2012), Dalian, China, 2012
Awards & Honors
● Fellowship, Foundation for Cultural Heritage and Art Research, Japan, 1994-1996
● Scholarship, Heiwa Nakajima Foundation, Japan, 1997-1999
● Scholarship, Ministry of Education, Science, Sports and Culture, Japan, 1999-2000
● CAS “100 Talents” Program Recipient, 2008
● New Leadership in the Applications of the Mössbauer Spectroscopy, MEDC, 2009
● Fellowship, China-Australia Younger Scientists Exchange Program, 2012
Current Research Interests
● Mössbauer applications in chemistry & catalysis
● Development & characterization of the novel nano composite materials
Selected Publications (2007-present)
 J. Yin, J. Wang, et al., Iodine Ion Mediated Formation of Monomorphic Single-Crystalline Platinum Nanoflowers, Chem. Mater. 24 (2012) 2645–2654.
 J. Yin, J. Wang, et al., Monomorphic Platinum Octapod and Tripod Nanocrystals Synthesized by an Iron Nitrate Modified Polyol Process, Chem. Commun. 47 (2011)11966-11968.
 K. Zhao, J. Wang, et al., Highly Active and Sintering-resistant Au/FeOx-hydroxyapatite Catalyst for CO Oxidation, Chem. Comm. 47 (2011) 1779-1781.
 Y. Zhang, J. Wang, et al., Novel Ca-doped CePO4 Supported Ruthenium Catalyst with Superior Catalytic Performance for Aerobic Oxidation of Alcohols, Chem. Comm. 47 (2011) 5307-5309.
 Y. Zhang, J. Wang, et al., Enhanced Catalytic Activities and Characterization of Ruthenium-Grafted Halogenous Hydroxyapatite Nano-Rod Crystallites, J. Phys. Chem. C114 (2010) 16443-16450.
 K. Liu, J. Wang, et al., Quasi in Situ 57Fe Mössbauer Spectroscopic Study: Quantitative Correlation Between Fe2+ and H2 Concentration for PROX over Ir-Fe/SiO2 Catalyst, J. Phys. Chem. C114 (2010) 8533-8541.
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