吸附等温线吸附选择性温度MOF-74(Ni) was synthesized by solvothermal synthesis method and then characterized by PXRD and pore size analysis. Isotherms of C3H6 and C3H8 on the synthesized MOF-74(Ni) were measured at different temperatures. The temperature programmed desorption experiments were conducted ...
wasprepared ，andthechangesofcrystalstructureand microstructure and the adsorption property for CO were studied. The results show that the specific sur face area of the prepared Ni-MOF-74 material is as high as 1 212.61 m 2/g ，the pore size ...
【摘要】MOF-74(Ni) was synthesized by solvothermal synthesis method and then characterized by PXRD and pore size analysis. Isotherms of C3H6 and C3H8 on the synthesized MOF-74(Ni) were measured at different temperatures. The temperature programmed desorption experiments were conducted to estimate the...
On the other hand, Zn-MOF-74 as the shell part, owing to the larger pore size, makes entrance and diffusion of the guest gas molecules more convenient. In addition, due to the presence of OMS in the Zn-MOF-74 structure, a greater adsorption capacity would be achieved. The prepared ...
showing the highest adsorption capacity at 77聽K and 298聽K and Qst when 40% Ni is isomorphically substituted (Ni50Co-MOF-74), confirming that a synergetic effect between both transition metal cations and smaller pore size can contribute to the hydrogen molecules retention in this kind of mate...
金属—有机骨架MOF-74系列吸附捕集低浓度二氧化碳的研究
As next-generation adsorbents, metal–organic framework (MOF) adsorbents with high surface area, tunable pore size, and low heat capacity are in the spotlight for CCS applications. Among the known MOFs, MOF-74 type analogs exhibit high CO2 adsorption performance due to the open metal sites in ...
This was mainly related to the molecular structure size. As shown in Fig. 2, the molecular sizes of R134a and R32 were smaller than those of R1234yf and R1234ze(z), thus more R134a and R32 were adsorbed into the MOF-74 pore. Additionally, the adsorption quantities of R1234yf, R...
This is not surprising as the Henry coefficient should not suffer significantly from simply increasing the pore size, yet it confirms that many of the analogs can achieve the remarkable CO2 uptake of the original MOF-74 in the limit of infinite dilution. At higher pore volumes the uptake of ...
Metal-organic frameworks (MOFs) have attracted much attention during the last two decades because of their enormous structural and chemical diversity in terms of high surface area, pore volumes, high thermal and chem- ical stabilities, and variety of pore dimensions/topologies1–5. These properties...