Characterizing Hydrogen Storage Media: Understanding the Interior Pore Structure of a Cu3BTC2 Metal-Organic Framework Infiltrated with NaAlH4
Preliminary results support the nano-confinement of sodium alanate within the pores of a Cu{sub 3}BTC{sub 2} MOF substrate. Increased {sup 1}H and {sup 27}Al NMR T{sub 1} relaxation rates indicate a close proximity of infiltrated sodium alante to the paramagnetic Cu{sup 2+} ions on the BTC paddlewheel units. This is in support of the theory that an interaction due to the electronegative framework with the sodium alanate facilitates thermodynamically-favorable hydrogen adsorption and desorption. Further studies can elucidate the local electronic environment of the sodium ions, further supporting a charge-transfer mechanism as the driving force for thermodynamically-favorable hydrogen adsorption and desorption.
- Research Organization:
- Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
- Sponsoring Organization:
- USDOE
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 979438
- Report Number(s):
- LLNL-PROC-428171; TRN: US201010%%683
- Resource Relation:
- Conference: Presented at: Experimental Nuclear Magnetic Resonance, Daytona Beach, FL, United States, Apr 18 - Apr 23, 2010
- Country of Publication:
- United States
- Language:
- English
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