Improved Hydrogen Storage in the Metal‐Organic Framework Cu₃(BTC)₂

Abstract

tic acid 27 ml L -1 , surface agent 20-30 mg L -1 , IF-MoS 2 and 2H-MoS 2 3 g L -1 , pH=4.8-5.1, temperature at 353-358 K and the depositing time is 2 h. The electroless coatings were treated at 673 K for 2 h in vacuum. The surface morphology of the coatings was characterized by scanning electron microscopy (SEM, FSEM SIRION JY/ T010-1996).The tribological properties of the coatings were investigated using a pin-ondisk wear tester (MMW-1) under unlubricated condition in air (relative humidity 60 %) at sliding speed of 0.126 m s -1 . The spherical pins with radius of 5 mm were fabricated by quenched-and-tempered medium carbon steel with a hardness of HB220. The test loads ranged from 50 to 120 M. Friction coefficient were calculated by dividing the friction force that was recorded on line via torque as measured by the strain gauge. Mass loss was measured with an analytical balance at an interval of 5 min throughout the test. The worn surfaces of the electroless coatings were observed also by scanning electron microscopy (SEM, FSEM SIRION JY/T010-1996).

H<sub>2</sub> and CH<sub>4</sub> Sorption on Cu-BTC Metal Organic Frameworks at Pressures up to 15 MPa and Temperatures between 273 and 318 K

“…For the NLDFT evaluation, slit and/or cylindrical pores were assumed which represents a com-promise between availability of mathematical PSD-al-gorithms with spherical pore structure and real pore structures. [13,24,25]. Other studies report BET surface areas for this material of 1781 m 2 /g (single-point BET) [26], 1154 m 2 /g [7] and 1239 m 2 /g [11] which is similar to the BET surface area of 1246 m 2 /g ascertained in this study (all measured with N 2 at 77 K).…”

Enhanced Hydrogen Storage Capacity Over Electro-synthesized HKUST-1

“…It can be seen that the maximum adsorption for solvothermal product was 1.19 wt%, while for the electrolysis product it was up to 4.75 wt%. The solvothermal synthesized HKUST-1 had the same tendency as in Kraewic, et al [23], Liu, et al [24] & Khvostikova, et al [25]. In the case of the electrolysis product, the hydrogen adsorption increased sharply at elevated pressure, followed by a plateau after a pressure of 1 bar.…”

“…Hydrogen storage measurements have been performed at room temperature using a Sieverts apparatus designed by the authors for small masses. Figure 7 shows the hydrogen sorption results of the HKUST-1 at low pressure of up to 1.2 bar, presented together with the results obtained by other researchers [23][24][25]. It can be seen that the maximum adsorption for solvothermal product was 1.19 wt%, while for the electrolysis product it was up to 4.75 wt%.…”

Facile Syntheses of Metal-organic Framework Cu3(BTC)2(H2O)3under Ultrasound

“…There have been continuous efforts to improve the synthesis and activation of Cu-BTC. [30][31][32][33] Various MOFs have generally been synthesized widely by slow diffusion techniques, conventional hydrothermal and solvothermal methods. [1][2][3][4] However, the reactions used to synthesize many MOFs, particularly those with good thermal stability, require hydro/solvothermal synthesis conditions.…”