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The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs.

Strathprints serves world leading Open Access research by the University of Strathclyde, including research by the Strathclyde Institute of Pharmacy and Biomedical Sciences (SIPBS), where research centres such as the Industrial Biotechnology Innovation Centre (IBioIC), the Cancer Research UK Formulation Unit, SeaBioTech and the Centre for Biophotonics are based.

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High-capacity hydrogen and nitric oxide adsorption and storage in a metal-organic framework

Xiao, Bo and Wheatley, Paul S. and Zhao, Xuebo and Fletcher, Ashleigh J. and Fox, Sarah and Rossi, Adriano G. and Megson, Ian L. and Bordiga, S. and Regli, L. and Thomas, K. Mark and Morris, Russell E. (2007) High-capacity hydrogen and nitric oxide adsorption and storage in a metal-organic framework. Journal of the American Chemical Society, 129 (5). pp. 1203-1209.

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Abstract

Gas adsorption experiments have been carried out on a copper benzene tricarboxylate metal−organic framework material, HKUST-1. Hydrogen adsorption at 1 and 10 bar (both 77 K) gives an adsorption capacity of 11.16 mmol H2 per g of HKUST-1 (22.7 mg g-1, 2.27 wt %) at 1 bar and 18 mmol per g (36.28 mg g-1, 3.6 wt %) at 10 bar. Adsorption of D2 at 1 bar (77 K) is between 1.09 (at 1 bar) and 1.20(at <100 mbar) times the H2 values depending on the pressure, agreeing with the theoretical expectations. Gravimetric adsorption measurements of NO on HKUST-1 at 196 K (1 bar) gives a large adsorption capacity of 9 mmol g-1, which is significantly greater than any other adsorption capacity reported on a porous solid. At 298 K the adsorption capacity at 1 bar is just over 3 mmol g-1. Infra red experiments show that the NO binds to the empty copper metal sites in HKUST-1. Chemiluminescence and platelet aggregometry experiments indicate that the amount of NO recovered on exposure of the resulting complex to water is enough to be biologically active, completely inhibiting platelet aggregation in platelet rich plasma.