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The utilization of Mg–O–F prepared from Mg (OH) 2 mixed with different wt % of F in the form of (NH 4 F·HF), calcined at 400 and 500 °C, for efficient capture of CO 2 is studied herein in a dynamic mode.
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Values of (ΔH) enthalpy changes corresponding to the...
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Values of (ΔH) enthalpy changes corresponding to the desorption steps of CO2 were calculated for the most active adsorbent in this study, that is, Mg(OH)2 + 20% F, at 400 and 500 °C. This study’s findings will inspire the simple preparation and economical design of nanocomposite CO2 sorbents for climate change mitigation under ambient conditions.
21 Μαρ 2023 · Mechanistic investigations employing in situ Raman and attenuated total reflection surface-enhanced infrared absorption spectroscopy unravel that Mg(OH) 2 plays a pivotal role to enhance the CO 2 RR kinetics by facilitating the first-step electron transfer to form anionic *CO 2 − intermediates.
20 Οκτ 2022 · CO2 photoconversion to solar fuels requires materials with a high affinity to the acidic CO2, and MgO and Mg(OH)2 films represent good candidates due to their basic sites are highly active for CO2 capture in a wide interval of temperatures.
4 Φεβ 2021 · Magnesium-rich silicate minerals, such as olivine ((Mg,Fe) 2 SiO 4), in ultramafic and mafic rocks have the potential to produce reactive Mg(OH) 2 with zero CO 2 emissions.
A magnesium-based metal–organic framework (Mg-MOF-74) exhibits excellent CO 2 adsorption under ambient conditions. However, the photostability of Mg-MOF-74 for CO 2 adsorption is poor. In this study, Mg x Cu 1–x -MOF-74 was synthesized by using a facile “one-pot” method.
1 Απρ 2019 · This was done to take advantage of the high CO 2 adsorption capacity of Mg(OH) 2 and the good photocatalytic performance of CuO/Cu 2 O for CO 2 reduction to solar fuels in liquid (CH 3 OH and HCOH) and gas phase (CH 4 and CO).
