Inorganic Materials Chemistry, Application of Vibrational and Solid-State NMR Spectroscopy to Microporous and Mesoporous Materials
Awards:
• Florence Bucke Award
Current Research Programs: Our research is directed towards the investigations of inorganic porous materials including zeolites, AlPO4 molecular sieves, pillared lamellar solids and mesoporous materials such as MCM-41. Zeolites are framework aluminosilicates with well defined pore and channel structures, widely used in industry as ion exchangers, molecular sieves, and catalysts. Current efforts emphasize vibrational and solid-state NMR spectroscopy Research Projects
(1) host-guest interactions in zeolitic systems including: studying the sorbate-induced phase transitions in zeolitic framework; probing the locations of the guest species inside zeolites; examining the dynamic and conformational properties of the sorbate molecules; and investigating the cation-sorbate interactions. Our vibrational facility includes a new Bruker RFS 100/S stand alone FT-Raman spectrometer equipped with a Nd:YAG laser operating at a wavelength of 1064.1 nm and liquid nitrogen cooled Ge detector. It has variable temperature capability. An FT-Raman microscope will soon be attached to the existing Raman bench. We also have a Bomem MB-100 FT-IR spectrometer equipped with a DTGS detector. The lab has two diamond anvil cells for high pressure vibrational study. Our group is the major user of the departmental new 400 MHz solid-state NMR spectrometer. Our new facility includes a Varian/Chemagnetic Infinity Plus console equipped with three RF channels. We have two H/X/Y (a 9.5-mm and a 7.5-mm) triple tuned MAS probes, a 2.5-mm H/X fast spinning probe and a H/X wideline probe. We also have access to powder XRD, XRF, XPS, SEM, ICP, UV-Vis with diffuse reflectance attachment and TGA/DTA analyzer within the department or on UWO campus. Selected Publications: [93] E. A. Turner, Y. Huang , J. F. Corrigan, “ Synthetic Routes to the Encapsulation of II - VI Semiconductors in Mesoporous Hosts”, the European Journal of Inorganic Chemistry (in press). [92] C. M.Kowalchuk, H. Rösner, D. Fenske, Y. Huang, and J. F.Corrigan, “Copper-Tellurolate Clusters in Trimethylsilylated-MCM-41: Preparation and Condensation” Canadian Journal of Chemistry (in press). [92] Y. Huang and Z. Yan, “Probing the Local Environments of Phosphorus in Aluminophosphate-based Mesostructured Lamellar Materials by Solid-state NMR Spectroscopy”, Journal of the American Chemical Society, 127, 2731-2740 (2005). [91] R. A. Secco, S. V. Goryainov, Y. Huang, “Pressure-induced Increase of Ionic Conduction of Water-treated NaA Zeolite”, Physica Status Solidi (b), 242, R73-R75 (2005). [90] C. Kowalchuk, J. Corrigan, Y. Huang, “A Study of the Behaviour of Cu 6(TePh) 6(PPh 2Et) 5 and Related Phosphine (PPh 2Et) and Phosphine Oxide (Ph 2EtPO) Adsorbed in Mesoporous Molecular Sieves”, Microporous and Mesoporous Materials , 81 , 211-216 (2005). |