SLIDE 1 Crystalline Nanoporous Metal Organic Frameworks
Antoin Douglawi
Mentor: Prashant Jain Advisor: Anthony K. Cheetham
(Material Research Laboratory)
Industrial Funding by Uniliver
Major: Biochemistry
SLIDE 2 Coordination Polymers
- Extended Crystalline Organic-Inorganic
Materials
SLIDE 3
2D Frame
SLIDE 4
3D Frame
SLIDE 5
Porous Structures
SLIDE 6
Size of Pores Can Be Varied
SLIDE 7
Multiple Pore Sizes
SLIDE 8 Applications
- Gas storage and separation
Hydrogen storage
Photoluminescence for sensors and displays
Computer memory Magnetic Materials Single molecular magnets
SLIDE 9
Multiferroics
Electric and Magnetic Phases
Coexist.
Magnetoelectric (ME) Effect.
SLIDE 10
Previous Work
SLIDE 11
ABX3 - [(CH3)2NH2] Zn(HCOO)3
SLIDE 12 Project Goals
- Synthesize New Multiferroic Metal Organic
Frameworks (MOFs)
- Observe Effects of Different Central Cations
- n Multiferroic Properties
- Create New Multivalence MOFs
SLIDE 13 Our Approach
Trying Different Cations:
- Trimethylamine
- N-ethyl N-methyl amine
Mixed Valence Iron Formates
SLIDE 14 Hydrothermal Synthesis
Temperatures range from 125 – 200oC
(Zn, Ni, Mn, Fe, Cu, Co)
- Ammonium Cation (Trimethylamine,
Dimethylamine, N-ethyl N-methyl amine)
- Ligand (Formic acid, Acetic acid,
Carbodiimide acid)
(Dimethylformamide, Diethyleformamide, water)
Hydrothermal Bomb
Metal Salt Ammonium Cation Organic Ligand
Organic Solvent
(Non)Aqueous Solution
SLIDE 15 Compounds Created
- New compound synthesized using:
- Nickel
Trimethylamine (CH3)3N Formic Acid (HCOOH) Dimethylformamide DMF
Does not match any compound in the database Multiphase compound: Phases vary as
temperatures change
SLIDE 16 Position [°2Theta] 10 20 30 40 Intensity 5000 10000 15000
T 17 125 °C
Position [°2Theta] 10 20 30 40 Intensity 5000 10000 15000
T 17 150 °C X-ray Diffraction Data
SLIDE 17 Crystals Synthesized
MOF synthesized using:
Iron (III) Copper (II) Dimethylamine (CH3)2N Formic Acid (HCOOH)
Two crystals Green crystals
CO2 templated Fe (III) formate
Black crystals
- Unknown. Possibility of mixed valance iron compound
SLIDE 18
T36 Crystals
SLIDE 19
N-Ethyl N-Methyl Amine
Cobalt (Co2+)
SLIDE 20
Trimethylamine (TMA)
Iron (Fe2+)
SLIDE 21
Trimethylamine (TMA)
Cobalt (Co2+)
SLIDE 22
Acknowledgements
Mentor: Prashant Jain Faculty Advisor: Prof. Anthony K. Cheetham Inset Staff: Nicholas Arnold, Liu-Yen Kramer, and Luke Bawazer Inset Director: Samantha Freeman Everyone at Inset for their support and efforts
SLIDE 23
