Dr LEUNG, Chi Fai   梁致輝
Associate Professor
Department of Science and Environmental Studies
Phone No: (852) 2948 8790
Email: cfleung@eduhk.hk
Contact
ORCiD
0000-0003-2830-0737
Phone
(852) 2948 8790
Email
cfleung@eduhk.hk
Scopus ID
8280665000
Research Interest

  • Photochemical energy conversion and Photocatalysis
  • Photochemical and photophysical properties of transition metal compounds
  • Anticancer Metallodrugs
  • Metal-ligand multiple bonds
  • Chemical degradation of persisting organic pollutants

Selected Publications

Peer Reviewed Journal Articles (2010 onward):

Ÿ Chi-Fai Leung, Shek-Man Yiu, Jing Xiang and Tai-Chu Lau, Addition of [CH(CN)2]- and [TCNE]- to RuVIN bearing 8-Quinolinolato ligands, Chem. Comm., 2010, 46, 7575-7577.

Ÿ Chi-Fai Leung, Yong-Zhen Chen, Han-Qing Yu, Shek-Man Yiu, Chi-Chiu Ko, Tai-Chu Lau, Electro- and Photocatalytic Hydrogen Generation in acetonitrile and aqueous solutions by a Cobalt Macrocyclic Schiff-base Complex, Int. J. Hydrogen Energy, 2011, 36, 11640 – 11645.

Ÿ Zongmin Hu, Chi-Fai Leung, Yat-Kwai Tsang, Hongxia Du, Haojun Liang, Yongfu Qiu and Tai-Chu Lau, Recyclable Polymer-supported Ruthenium Catalyst for the Oxidative Degradation of Bisphenol A in Water using Hydrogen Peroxide, New J. Chem. 2011, 35, 149 – 155.

Ÿ Zongmin Hu, Hongxia Du, Chi-Fai Leung, Haojun Liang, Tai-Chu Lau, A Highly Active and Robust Solid-Supported Polypyridylruthenium(II) Catalyst for the Oxidation of Alcohols and Alkenes by Cerium(IV) and Periodate in Water, Ind. Eng. Chem. Res. 2011, 50, 12288–12292.

Ÿ Yongfu Qiu, Lei Wang, Chi-Fai Leung, Guijian Liu, Shihe Yang, Tai-Chu Lau, Preparation of Nitrogen doped K2Nb4O11 with High Photocatalytic Activity for Degradation of Organic Pollutants, Appl. Catal. A General, 2011, 402, 23 – 30.

Ÿ Zongmin Hu, Hongxia Du,Wai-Lun Man, Chi-Fai Leung, Haojun Liang and Tai-Chu Lau, Catalytic Reactions of Chlorite with Polypyridylruthenium(II) complex: Disproportionation, Chlorine Dioxide formation and Alcohol Oxidation, Chem. Commun., 2012, 48, 1102–1104.

Ÿ Chi-Fai Leung , Siu-Mui Ng , Chi-Chiu Ko , Wai-Lun Man , Jiashou Wu , Lingjing Chen and Tai-Chu Lau , A cobalt(II) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction, Energy and Environmental Science, 2012, 5, 7903-7907.

Ÿ Jing Xiang, Larry Tso-Lun Lo, Chi-Fai Leung, Shek-Man Yiu, Chi-Chiu Ko, and Tai-Chu Lau, Synthesis, Structures, and Photophysical Properties of Ruthenium(II) Quinolinolato Complexes, Organometallics, 2012, 31, 7101–7108.

Ruwei Wang, Yufeng Zhu, Yongfu Qiu, Chi-Fai Leung, Jun He, Guijian Liu and Tai-Chu Lau (2013). Synthesis of nitrogen-doped KNbO3 nanocubes with high photocatalytic activity for water splitting and degradation of organic pollutants under visible light. Chemical Engineering Journal, 226, 123-130.

Quan Tang, Wen-Xiu Ni, Chi-Fai Leung, Wai-Lun Man, Kenneth King-Kwan Lau, Yimin Liang, Yun-Wah Lam, Wai-Yeung Wong, Shie-Ming Peng, Gui-Jian Liu and Tai-Chu Lau (2013). Synthesis and antitumor activity of a series of osmium(VI) nitrido complexes bearing quinolinolato ligands. Chemical Communications, 49, 9980-9982.

Lu-Lu Fu, Ya Luo, Jing Xiang and Chi-Fai Leung (2015). Construction of Three Coordination Compounds Formed by in-situ Ligand Reaction of 1-Cyanobenzoimidazole. Zeitschrift für anorganische und allgemeine Chemie, 641(5), 842-847.

Lingjing Chen, Gui Chen, Chi-Fai Leung, Shek-Man Yiu, Chi-Chiu Ko, Elodie Anxolabéhère-Mallart, Marc Robert, and Tai-Chu Lau (2014). Dual Homogeneous and Heterogeneous Pathways in Photo- and Electrocatalytic Hydrogen Evolution with Nickel(II) Catalysts Bearing Tetradentate Macrocyclic Ligands. ACS Catal, 5(1), 356-364.

Conference Papers (2012 onward):

A Visible Light-Driven Cobalt Catalyst for both Water Oxidation and Reduction, 20th EuCheMS Conference on Organometallic Chemistry, St. Andrews (2013).

A Cobalt Catalyst for Light-driven Water Oxidation and Reduction, International Conference for Hydrogen Atom Transfer (iCHAT), Rome (2014).

Synthesis and Photophysical Properties of Isocyano Ruthenium(II) Quinoline-8-thiolate Complexes with Visible-light and Near-Infrared Emission, 27th International Conference on Photochemistry (ICP), Jeju (2015).

Synthesis and Photophysical Properties of Ruthenium(II) Isocyanide Complexes with Visible-light and Infrared Emission, 5th Asian Conference on Coordination Chemistry (ACCC5), Hong Kong (2015).

Visible Light-driven Solar Fuels Generation with Cobalt(II) Tripodal Iminopyridine Complexes, 42nd International Conference on Coordination Chemistry (ICCC), Brest-France (2016).

Oral Presentation (2012 onward):

Synthesis and Photophysical Properties of Isocyano Ruthenium(II) Quinoline-8-thiolate Complexes with Visible-light and Near-Infrared Emission, 27th International Conference on Photochemistry, Jeju (2015).

Teaching Interest
  • Inorganic and Physical Chemistry
  • Environmental Studies
Professional Profile

Academic Qualification:

BSc (CityU HK),MSc (HKU), PhD (CityU HK)

Professional Experience:

  • Chemical Engineer, 2005-2006, Alstom Power Service (HK).
  • Research Fellow, 2008-2012, City University of Hong Kong.
  • Visiting Postdoctoral Researcher (Summer), 2012 & 2013, Université Paris.
  • Lecturer, 2012-2015, The Hong Kong Institute of Education.
  • Assist. Professor, 2015-present, The Education University of Hong Kong.
Research Interest

  • Photochemical energy conversion and Photocatalysis
  • Photochemical and photophysical properties of transition metal compounds
  • Anticancer Metallodrugs
  • Metal-ligand multiple bonds
  • Chemical degradation of persisting organic pollutants

Selected Publications

Peer Reviewed Journal Articles (2010 onward):

Ÿ Chi-Fai Leung, Shek-Man Yiu, Jing Xiang and Tai-Chu Lau, Addition of [CH(CN)2]- and [TCNE]- to RuVIN bearing 8-Quinolinolato ligands, Chem. Comm., 2010, 46, 7575-7577.

Ÿ Chi-Fai Leung, Yong-Zhen Chen, Han-Qing Yu, Shek-Man Yiu, Chi-Chiu Ko, Tai-Chu Lau, Electro- and Photocatalytic Hydrogen Generation in acetonitrile and aqueous solutions by a Cobalt Macrocyclic Schiff-base Complex, Int. J. Hydrogen Energy, 2011, 36, 11640 – 11645.

Ÿ Zongmin Hu, Chi-Fai Leung, Yat-Kwai Tsang, Hongxia Du, Haojun Liang, Yongfu Qiu and Tai-Chu Lau, Recyclable Polymer-supported Ruthenium Catalyst for the Oxidative Degradation of Bisphenol A in Water using Hydrogen Peroxide, New J. Chem. 2011, 35, 149 – 155.

Ÿ Zongmin Hu, Hongxia Du, Chi-Fai Leung, Haojun Liang, Tai-Chu Lau, A Highly Active and Robust Solid-Supported Polypyridylruthenium(II) Catalyst for the Oxidation of Alcohols and Alkenes by Cerium(IV) and Periodate in Water, Ind. Eng. Chem. Res. 2011, 50, 12288–12292.

Ÿ Yongfu Qiu, Lei Wang, Chi-Fai Leung, Guijian Liu, Shihe Yang, Tai-Chu Lau, Preparation of Nitrogen doped K2Nb4O11 with High Photocatalytic Activity for Degradation of Organic Pollutants, Appl. Catal. A General, 2011, 402, 23 – 30.

Ÿ Zongmin Hu, Hongxia Du,Wai-Lun Man, Chi-Fai Leung, Haojun Liang and Tai-Chu Lau, Catalytic Reactions of Chlorite with Polypyridylruthenium(II) complex: Disproportionation, Chlorine Dioxide formation and Alcohol Oxidation, Chem. Commun., 2012, 48, 1102–1104.

Ÿ Chi-Fai Leung , Siu-Mui Ng , Chi-Chiu Ko , Wai-Lun Man , Jiashou Wu , Lingjing Chen and Tai-Chu Lau , A cobalt(II) quaterpyridine complex as a visible light-driven catalyst for both water oxidation and reduction, Energy and Environmental Science, 2012, 5, 7903-7907.

Ÿ Jing Xiang, Larry Tso-Lun Lo, Chi-Fai Leung, Shek-Man Yiu, Chi-Chiu Ko, and Tai-Chu Lau, Synthesis, Structures, and Photophysical Properties of Ruthenium(II) Quinolinolato Complexes, Organometallics, 2012, 31, 7101–7108.

Ruwei Wang, Yufeng Zhu, Yongfu Qiu, Chi-Fai Leung, Jun He, Guijian Liu and Tai-Chu Lau (2013). Synthesis of nitrogen-doped KNbO3 nanocubes with high photocatalytic activity for water splitting and degradation of organic pollutants under visible light. Chemical Engineering Journal, 226, 123-130.

Quan Tang, Wen-Xiu Ni, Chi-Fai Leung, Wai-Lun Man, Kenneth King-Kwan Lau, Yimin Liang, Yun-Wah Lam, Wai-Yeung Wong, Shie-Ming Peng, Gui-Jian Liu and Tai-Chu Lau (2013). Synthesis and antitumor activity of a series of osmium(VI) nitrido complexes bearing quinolinolato ligands. Chemical Communications, 49, 9980-9982.

Lu-Lu Fu, Ya Luo, Jing Xiang and Chi-Fai Leung (2015). Construction of Three Coordination Compounds Formed by in-situ Ligand Reaction of 1-Cyanobenzoimidazole. Zeitschrift für anorganische und allgemeine Chemie, 641(5), 842-847.

Lingjing Chen, Gui Chen, Chi-Fai Leung, Shek-Man Yiu, Chi-Chiu Ko, Elodie Anxolabéhère-Mallart, Marc Robert, and Tai-Chu Lau (2014). Dual Homogeneous and Heterogeneous Pathways in Photo- and Electrocatalytic Hydrogen Evolution with Nickel(II) Catalysts Bearing Tetradentate Macrocyclic Ligands. ACS Catal, 5(1), 356-364.

Conference Papers (2012 onward):

A Visible Light-Driven Cobalt Catalyst for both Water Oxidation and Reduction, 20th EuCheMS Conference on Organometallic Chemistry, St. Andrews (2013).

A Cobalt Catalyst for Light-driven Water Oxidation and Reduction, International Conference for Hydrogen Atom Transfer (iCHAT), Rome (2014).

Synthesis and Photophysical Properties of Isocyano Ruthenium(II) Quinoline-8-thiolate Complexes with Visible-light and Near-Infrared Emission, 27th International Conference on Photochemistry (ICP), Jeju (2015).

Synthesis and Photophysical Properties of Ruthenium(II) Isocyanide Complexes with Visible-light and Infrared Emission, 5th Asian Conference on Coordination Chemistry (ACCC5), Hong Kong (2015).

Visible Light-driven Solar Fuels Generation with Cobalt(II) Tripodal Iminopyridine Complexes, 42nd International Conference on Coordination Chemistry (ICCC), Brest-France (2016).

Oral Presentation (2012 onward):

Synthesis and Photophysical Properties of Isocyano Ruthenium(II) Quinoline-8-thiolate Complexes with Visible-light and Near-Infrared Emission, 27th International Conference on Photochemistry, Jeju (2015).

Teaching Interest

  • Inorganic and Physical Chemistry
  • Environmental Studies
Selected Output

Scholarly Books, Monographs and Chapters
蘇詠梅、梁致輝(2019):第二十二屆「常識百搭」小學STEM探究—「智」得其樂,香港,教育局課程發展處資優教育組。
蘇詠梅、梁致輝(2018):第二十一屆「常識百搭」小學STEM探究—STEM世代建設—智慧城市生活,香港,教育局課程發展處資優教育組。
蘇詠梅、梁致輝(2017):第二十屆「常識百搭」小學STEM探究—都市簡約生活,香港,教育局課程發展處資優教育組。
蘇詠梅、梁致輝(2016):第十九屆「常識百搭」創新科學與環境探究—綠色啟航,香港,教育局課程發展處資優教育組。

Journal Publications
Wang, L.X., Xiang, J., Li, C.H., Leung, C.F., & Xiang, J. (2021). Recent Advances on the Applications of Luminescent Pb2+-Containing Metal–Organic Frameworks in White-Light Emission and Sensing. Frontiers in Chemistry, 9, 636431.
Lingjing CHEN, Gui CHEN, Chi-Fai LEUNG, Claudio COMETTO, Marc ROBERT, Tai-Chu LAU (2020). Molecular quaterpyridine-based metal complexes for small molecule activation: Water splitting and CO₂ reduction. Chemical Society Reviews, 49, 7271-7283.
Xin-Xin JIN, Tian LI, Dong-Po SHI, Li-Juan LUO, Qian-Qian SU, Jing XIANG, Hai-Bing XU, Chi-Fai LEUNG, Ming-Hua ZENG (2020). Luminescent phosphine copper(i) complexes with various functionalized bipyridine ligands: Synthesis, structures, photophysics and computational study. New Journal of Chemistry, 44, 13393-13400.
Kwok, C.-L.; Cheng, S.-C.; Ho, P.-Y.; Yiu, S.-M.; Man, W.-L.; Au, V. K.-M.; Tsang, P.-K.; Leung, C.-F.*; Ko, C.-C.*; Robert, M.* (2020). Precious-metal free photocatalytic production of an NADH analogue using cobalt diimine–dioxime catalysts under both aqueous and organic conditions. Chemical Communications, 56, 0-0.
Leung, C.-F. & Ho, P.-Y. (2019). Molecular Catalysis for Utilizing CO2 in Fuel Electro-Generation and in Chemical Feedstock. Catalysts, 9 (9), 760.
Ho, P.-Y., Cheng, S.-C., Yiu, S.-M., Au, V. K.-M., Xiang, J., Leung, C.-F. & Ko, C.-C. (2019). The Important Role of Coordination Geometry on Photophysical Properties of Blue-Green Emitting Ruthenium(II) Diisocyano Complexes Bearing 2-Benzoxazol-2-ylphenolate. Inorganic Chemistry, 58 (17), 11372-11381.
Yelan XIAO, Apple Wai-Yi CHEUNG, Sze-Wing LAI, Shun-Cheung CHENG, Shek-Man YIU, Chi Fai LEUNG, Chi-Chiu KO (2019). Electronic communication in luminescent dicyanorhenate-bridged homotrinuclear rhenium(I) complexes. Inorganic Chemistry, 58(10), 6696-6705.
Hong‐Rui ZHANG, Xin-Xin JIN, Xin ZHOU, Yunxia ZHANG, Chi Fai LEUNG, Jing XIANG (2019). Effect of coordination modes on the tunable luminescence of 1,10‐phenanthroline‐based complexes. Crystal Research and Technology, 54(1), 1800168.
Jing XIANG, Shun-Cheung CHENG, Xin-Xin JIN, Qian-Qian SU, Xin ZHOU, Wing-Kin CHU, Chi-Fai LEUNG, Chi-Chiu KO (2018). Polynuclear Cu(I) and Ag(I) phosphine complexes containing multi-dentate polytopic ligands: Syntheses, crystal structures and photoluminescence properties. Dalton Transactions, 48(2), 741-750.
So, W. M. W., Zhan, Y., Chow, C. F., Leung, C. F. (2018). Analysis of STEM Activities in Primary Students' Science Projects in an Informal Learning Environment. International Journal of Science and Mathematics Education, 16, 1003-1023.
Xin-Xin Jin, Xiao-Xiang Chen, Jing Xiang, Yun-Zhou Chen, Li-Hui Jia, Bing-Wu Wang, Shun-Cheung Cheng, Xin Zhou, Chi-Fai Leung, and Song Gao (2018). Slow Magnetic Relaxation in a Series of Mononuclear 8-Coordinate Fe(II) and Co(II) Complexes. Inorganic Chemistry, 57 (7), 3761-3774.
Chi-Fai Leung, Shun-Cheung Cheng, Ying Yang, Jing Xiang, Shek-Man Yiu, Chi-Chiu Ko and Tai-Chu Lau (2018). Efficient Photocatalytic Water Reduction by a Cobalt(II) Tripodal Iminopyridine Complex. Catalysis Science & Technology, 8, 307-313.
Zhenguo Guo, Fei Yu, Ying Yang, Chi-Fai Leung, Siu-Mui Ng, Chi-Chiu Ko, Claudio Cometto, Tai-Chu Lau, and Marc Robert (2017). Photocatalytic Conversion of CO2 to CO by a Copper(II) Quaterpyridine Complex. ChemSusChem, 10, 1-6.
Lin-Li Hu, Chang Shen, Wing-Kin Chu, Jing Xiang, Fei Yu, Ge Xiang, Yan Nie, Chun-Leung Kwok, Chi-Fai Leung, Chi-Chiu Ko (2017). Synthesis, Structures and Photophysical Properties of Cu(I) Phosphine Complexes with Various Diimine Ligands. Polyhedron, 127, 203-211.
Hu, L.L., Shen, C. Xiang, J., & Leung, C.F. (2017). Synthesis and Crystal Structure of a 3-D Ag+ Coordination Polymer with White-light Emission. Crystal Research & Technology, 52(4), .-.
Bang-xing LI, Chi-fai LEUNG, Yau-yuen YEUNG (2017). First-principles calculations and re-analysis of optical spectra and electron paramagnetic resonance parameters for Yb3+ in YAl3(BO3)4 crystal. Journal of Rare Earths, 35 (3), 254-258.
Xiang, J., Shen, C., Cheng, S. C., Yu, F., Chu, W. K., Feng, H., Yiu, S. M., Ko, C. C. & Leung, C. F. (2016). Luminescence behaviour of Pb2+-based cage-containing and channel-containing porous coordination polymers. Dalton Transactions, 45, 16134-16138.
Shen, C., Yu, F., Chu, W.-K., Xiang, J., Tan, P., Luo, Y., Feng, H., Guo, Z.-Q., Leung, C. F. & Lau, T. C. (2016). Synthesis, structures and photophysical properties of luminescent cyanoruthenate(II) complexes with hydroxylated bipyridine and phenanthroline ligands. RSC Advances, 6, 87389-87399.
Leung, C. F., & Ko, C. C. (2016). Synthesis and Photophysical Properties of Isocyano Ruthenium(II) Quinoline-8-thiolate Complexes with Visible-light and Near-Infrared Emission. Journal of Organometallic Chemistry, 804, 101-107.
Lu-Lu Fu, Ya Luo, Jing Xiang and Chi-Fai Leung (2015). Construction of Three Coordination Compounds Formed by in-situ Ligand Reaction of 1-Cyanobenzoimidazole. Zeitschrift für anorganische und allgemeine Chemie, 641(5), 842-847.
Lingjing Chen, Gui Chen, Chi-Fai Leung, Shek-Man Yiu, Chi-Chiu Ko, Elodie Anxolabéhère-Mallart, Marc Robert, and Tai-Chu Lau (2014). Dual Homogeneous and Heterogeneous Pathways in Photo- and Electrocatalytic Hydrogen Evolution with Nickel(II) Catalysts Bearing Tetradentate Macrocyclic Ligands. ACS Catal, 5(1), 356-364.
Quan Tang, Wen-Xiu Ni, Chi-Fai Leung, Wai-Lun Man, Kenneth King-Kwan Lau, Yimin Liang, Yun-Wah Lam, Wai-Yeung Wong, Shie-Ming Peng, Gui-Jian Liu and Tai-Chu Lau (2013). Synthesis and antitumor activity of a series of osmium(VI) nitrido complexes bearing quinolinolato ligands. Chemical Communications, 49, 9980-9982.
Ruwei Wang, Yufeng Zhu, Yongfu Qiu, Chi-Fai Leung, Jun He, Guijian Liu and Tai-Chu Lau (2013). Synthesis of nitrogen-doped KNbO3 nanocubes with high photocatalytic activity for water splitting and degradation of organic pollutants under visible light. Chemical Engineering Journal, 226, 123-130.

Project

Self-sensitized Photocatalysts for Hydrogen Generation
The project concerns the develop of photocatalyst for producing hydrogen by reducing water. In contrast to conventional approach, the function-integrated catalysts will harvest the solar light to promote reduce water reduction without the presence of added photosensitizer.
Project Start Year: 2021, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Photoluminescent Transition-metal Isocyano and Carbene Complexes as Anticancer Agents
The project concerns the preparation and characterizations of a series of Ru(II) and Os(II) complexes bearing isocyano and carbene ligands. Besides, the luminescence and anti-cancer cytotoxic properties of these complexes will be studied.
Project Start Year: 2021, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Catalysis for the Photochemical Generation of Hydrogen Peroxide from Dioxygen
The studies concerns the design and development of noble metal-free catalysts for photochemical production of H2O2 from O2
Project Start Year: 2020, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Molecular Catalysis for Electro- and Photochemical CO2 Reductive Functionalization
The projects concerns the study on molecular transition-metal catalysts for the reductive coupling of CO2 with nucleophilic substrate bearing various donor atoms. The reductive coupling reactions will be investigated under electro- and photocatalytic condition.
Project Start Year: 2019, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Molecular Functional Materials for Energy and Electronic Application
The project is funded under faculty Research Impact Prize and concerns the design and applications of functional molecular materials with interesting magnetic, luminescence and photocatalytic properties.
Project Start Year: 2019, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Solar Photocatalytic Biomass Reforming for Energy Generation
This project aims at developing functional materials for environmental and energy applications. We propose to develop a series of composite photocatalysts for the generation of fuels. It is believed the proposed technology will be a promising approach to partly circumvent the global issues of fossil fuel depletion.
Project Start Year: 2019, Principal Investigator(s): HO, Wing Kei 何詠基 (LEUNG, Chi Fai 梁致輝 as Co-Principal Investigator)
 
Design of Metal-Organic Framework (MOP) Materials and their Environmental Applications on Pollutant Analysis and Treatment
We propose in this project to extend their applications as multifunctional materials for pollutant analysis and treatment, i.e. the luminous sensing, absorption and catalytic degradation of various pollutant ions (e.g. cyanides, nitrate, chlorite, phosphate or heavy metals) and small molecules (nitrogen, nitrous oxides (NOx), ozone (O3) and carbon monoxide (CO)). These target ions/molecules are detrimental to the quality of water resources and air. Detailed protocols for these applications will . . .
Project Start Year: 2017, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Molecular Catalysis for Sustainable Generation of Hydrogen Peroxide
In this project, we propose to design and study a new class of first-row transition metal (cobalt, copper, nickel and iron) catalysts for the reductive conversion of O2 to H2O2. The reactivity of these catalysts for selective two-electron reduction of O2 to H2O2 will initially be studied by electrochemical and chemical methods. The light-driven photochemical generation of H2O2 will then be investigated using the selected catalysts. In particular, the influence of metal active sites and their coo . . .
Project Start Year: 2017, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Global Artificial Mussel Watch
Earlier, we have developed a chemical device known as the “Artificial Mussel” (AM) which can provide a time-integrated estimate of metal concentrations in the environment. This has attracted international collaboration with Scotland, Iceland, Portugal, South Africa, Australia and South Korea. The overall results demonstrated that AM can provide a reliable time-integrated estimate of metal concentration over large biogeographic areas with very different hydrographic conditions, and overcome the s . . .
Project Start Year: 2016, Principal Investigator(s): WU, Shiu Sun Rudolf 胡紹燊 (LEUNG, Chi Fai 梁致輝 as Co-Investigator)
 
Proton-assisted Oxygen Reduction on Nonheme Transition-metal Molecular Catalysts
The project concerns the development of transition-metal catalysts for the reduction of oxygen using non-heme ligands such as macrocyclic or polydentate iminopyridine and polypyridine. The reactivity of these classes of complexes toward oxygen has been investigated using chemical and electrochemical approaches.
Project Start Year: 2016, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Ruthenium (II) Isocyano Complexes as Functional Materials for Photoluminescence and Photosensitization
Design and synthesis of isocyanide-based luminescent and photosensitizing materials of ruthenium and other transition metals
Project Start Year: 2016, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Sustainable Organohydride Cofactor Regeneration on Molecular Transition Metal Catalysts for Enzymatic Biotransformation
Our industrial and societal development is heavily dependent on a number of unsustainable and energy intensive multi-electron redox processes, e.g. Haber-Bosch process, to derive and utilize the necessary resources, generating thus excessive greenhouse gas (carbon dioxide). In face of fossil fuel depletion and global climate change, a sustainable and efficient approach of resource and energy utilization will be desirable. Enzyme-catalyzed redox transformation, e.g. by NAD(P)-dependent oxidored . . .
Project Start Year: 2016, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Acid-assisted strategy for efficient carbon dioxide reduction on molecular transition-metal catalysts
This project is mainly concerned with the fundamental studies of transition metal-catalyzed carbon dioxide (CO2) reduction as a means of energy conversion. This reaction may convert CO2 into useful compounds such as carbon monoxide (CO), formate, formaldehyde and fuels such as methanol and methane. The stability of CO2, however, imposes a high energy barrier for its reduction and a catalyst is required for it to occur under mild conditions. Various homogeneous/heterogeneous organic and metal cat . . .
Project Start Year: 2015, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Theoretical calculations of the luminescence properties of transition metals for developing eco-friendly optical devices
Luminescence (or spectroscopic) properties of open-shell ions like transition metals (TMs) and rare earths play a crucially important role in many optical devices such as plasma display panels (PDPs); field emission displays (FEDs); white LED (light-emitting diode) lamps, optical communication amplifiers, optical sensing, optical data storage, solid state lasers and solar panels (as quantum cutters or downconversion materials for maximization of solar energy). The past applications lead to two i . . .
Project Start Year: 2015, Principal Investigator(s): YEUNG, Yau Yuen 楊友源 (LEUNG, Chi Fai 梁致輝 as Co-Investigator)
 
New lighting and display sources using transition metals
Current studies on luminescence mostly focus on the use of phosphors as scintillators, in plasma display panels (PDPs), in field emission displays (FEDs) and as quantum cutters (QCs) or down-conversion materials for solar energy maximization. These applications have previously utilized lanthanide ions as the light-emitting activator ions. However, lanthanide chemicals have recently become expensive as the major exporter—China—has curtailed its supply of such chemicals by 72% in 2008. These chemi . . .
Project Start Year: 2014, Principal Investigator(s): YEUNG, Yau Yuen 楊友源 (LEUNG, Chi Fai 梁致輝 as Co-Investigator)
 
Effects of Brønsted and Lewis Acids on Electro- and Photocatalytic Carbon Dioxide Reduction
The aim of this project is to develop efficient CO2 reduction catalysts of the earth-abundant metals cobalt and nickel. Effects of various Brønsted and Lewis acids on the catalytic reaction will be investigated. Photocatalytic reduction of CO2 will also be investigated.
Project Start Year: 2013, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Transition Metal Catalyzed Hydrogen Generation
The project involves the design of first-row transition metal catalysts for hydrogen generation and investigate the structural and electronic factors affecting the catalytic process. Co and Ni catalysts for hydrogen generation will be synthesized and the influence of ligand on the catalytic activities will be investigated by the systematic variation of the first and second coordination spheres of the metal centers.
Project Start Year: 2013, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Transition-metal Water Oxidation Catalysts for Chemical Energy Conversion(ECR16)
The project involves the development of water-oxidation catalysts of earth-abundant transition metals. The activities of the catalysts will be examined using electrochemical methods and the influence of the electronic and structural factors on the activities will be investigated. Chemical and photocatalytic water oxidation of selected catalysts will finally be studied.
Project Start Year: 2013, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Transition-metal Compounds as Photosensitizing and Luminescent Materials
The project involves the development of photosensitizing and luminescent molecular materials containing transition elements for the application of photochemical solar energy conversion and electronic display (Organic Light Emitting Diode), biological cell-imaging and molecular sensing of toxic substances and pollutants.
Project Start Year: 2012, Principal Investigator(s): LEUNG, Chi Fai 梁致輝
 
Prizes and awards

Research Output Prize - Dean's Research Fund 2019-20

Date of receipt: 10/6/2020, Conferred by: Faculty of Liberal Art and Social Science
 
Research Impact Prize - Dean's Research Fund 2018-19

Date of receipt: 7/5/2019, Conferred by: Faculty of Liberal Art and Social Science
 
Research Output Prize - Dean's Research Fund 2018 - 19

Date of receipt: 7/4/2019, Conferred by: Faculty of Liberal Arts and Social Science, The Education University of Hong Kong
 
Research Output Prize - Dean’s Research Fund 2017-18

Date of receipt: /4/2018, Conferred by: Faculty of Liberal Arts and Social Sciences, The Education University of Hong Kong
 
Grand Award, Knowledge Transfer Awards Scheme (as Team member)

Date of receipt: 13/1/2016, Conferred by: RDO