High-Capacity Hydrogen and Nitric Oxide Adsorption and Storage in a Metal-Organic Framework
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- 作者：Bo Xiao ; Paul S. Wheatley ; Xuebo Zhao ; Ashleigh J. Fletcher ; Sarah Fox ; Adriano G. Rossi ; Ian L. Megson ; S. Bordiga ; L. Regli ; K. Mark Thomas ; and ; Russell E. Morris
- 刊名：Journal of the American Chemical Society
- 出版年：2007
- 出版时间：February 7, 2007
- 年：2007
- 卷：129
- 期：5
- 页码：1203 - 1209
- 全文大小：152K
- 年卷期：v.129,no.5(February 7, 2007)
- ISSN：1520-5126
文摘
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 adsorptioncapacity 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 (36.28mg 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 <100mbar) times the H2 values depending on the pressure, agreeing with the theoretical expectations. Gravimetricadsorption measurements of NO on HKUST-1 at 196 K (1 bar) gives a large adsorption capacity of ~9mmol g-1, which is significantly greater than any other adsorption capacity reported on a porous solid. At298 K the adsorption capacity at 1 bar is just over 3 mmol g-1. Infra red experiments show that the NObinds to the empty copper metal sites in HKUST-1. Chemiluminescence and platelet aggregometryexperiments indicate that the amount of NO recovered on exposure of the resulting complex to water isenough to be biologically active, completely inhibiting platelet aggregation in platelet rich plasma.