NMR and monte carlo simulation studies of water adsorption dynamics |
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Authors: | Lam S K K Peemoeller H Chen Z Y |
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Institution: | Department of Physics, University of Waterloo, Waterloo, Ontario, N2L 3G1, Canada. |
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Abstract: | Nuclear magnetic resonance water proton spin-spin relaxation time T(2) was measured in wood samples with moisture contents ranging from 0.50 to 26.4%. The experimental results are discussed in terms of Monte Carlo simulations, which determine the correlation times tau for reorientation of the water molecule proton-proton vectors. We demonstrate that 1/T(2) and tau qualitatively follow the same behavior with surface hydration. The common application of the multisite exchange model to hydrated systems is discussed in light of the new results. |
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