AIBN Special Seminar: Prof Junhu Wang, Dalian Institute of Chemical
Physics, Chinese
Title:
Novel
catalytic Materials for environment and energy.
Date:
Friday 2 November
Time:
2:00pm
Venue:
AIBN, Level 1 Seminar Room
Abstract
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
Biography
Education
● B. S. in
Radiochemistry,
● Junior
Researcher, Japan Atomic Energy Research Institute, 1998-2001
● Ph. D. in
Chemistry,
Professional
Experience
● 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),
Awards
& Honors
● Fellowship,
Foundation for Cultural Heritage and Art Research,
● 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)
[1] J. Yin, J. Wang, et al., Iodine Ion Mediated Formation of
Monomorphic Single-Crystalline Platinum Nanoflowers, Chem. Mater. 24 (2012)
2645–2654.
[2] 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.
[3] K. Zhao, J. Wang, et al., Highly
Active and Sintering-resistant Au/FeOx-hydroxyapatite Catalyst for
CO Oxidation, Chem. Comm. 47 (2011) 1779-1781.
[4] 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.
[5] 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.
[6] 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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