Ultra-Microporous Fe-MOF with Prolonged NO Delivery in Biological Media for Therapeutic Application Rosana V. Pinto, Chen‐Chen Cao, Pengbo Lyu, Iurii Dovgaliuk, William Shepard, et al. Small, 2024 Nitric oxide (NO), a key element in the regulation of essential biological mechanisms, presents huge potential as therapeutic agent in the treatment and prevention of chronic diseases. Metal‐organic frameworks (MOFs) with open metal sites are promising carriers for NO therapies but delivering it over an extended period in biological media remains a great challenge due to i) a fast degradation of the material in body fluids and/or ii) a rapid replacement of NO by water molecules onto the Lewis acid sites. Here, a new ultra‐narrow pores Fe bisphosphonate MOF, denoted MIP‐210(Fe) or Fe(H2O)(Hmbpa) (H4mbpa = p‐xylenediphosphonic acid) is described that adsorbs NO due to an unprecedented sorption mechanism: coordination of NO through the Fe(III) sites is unusually preferred, replacing bound water, and creating a stable interaction with the free H2O and P‐OH groups delimiting the ultra‐narrow pores. This, associated with the high chemical stability of the MOF in body fluids, enables an unprecedented slow replacement of NO by water molecules in biological media, achieving an extraordinarily extended NO delivery time over at least 70 h, exceeding by far the NO kinetics release reported with others porous materials, paving the way for the development of safe and successful gas therapies.
A Mini-Review on Recent Developments and Improvements in CO2 Catalytic Conversion to Methanol: Prospects for the Cement Plant Industry Luísa Marques, Maria Vieira, José Condeço, Carlos Henriques, Maria Mateus Energies, 2024 The cement industry significantly impacts the environment due to natural resource extraction and fossil fuel combustion, with carbon dioxide (CO2) emissions being a major concern. The industry emits 0.6 tons of CO2 per ton of cement, accounting for about 8% of global CO2 emissions. To meet the 13th United Nations Sustainable Development Goal, cement plants aim for carbon neutrality by 2050 through reducing CO2 emissions and adopting Carbon Capture and Utilization (CCU) technologies. A promising approach is converting CO2 into valuable chemicals and fuels, such as methanol (MeOH), using Power-to-Liquid (PtL) technologies. This process involves capturing CO2 from cement plant flue gas and using hydrogen from renewable sources to produce renewable methanol (e-MeOH). Advancing the development of novel, efficient catalysts for direct CO2 hydrogenation is crucial. This comprehensive mini-review presents a holistic view of recent advancements in CO2 catalytic conversion to MeOH, focusing on catalyst performance, selectivity, and stability. It outlines a long-term strategy for utilizing captured CO2 emissions from cement plants to produce MeOH, offering an experimental roadmap for the decarbonization of the cement industry.
Review of Power-to-Liquid (PtL) Technology for Renewable Methanol (e-MeOH): Recent Developments, Emerging Trends and Prospects for the Cement Plant Industry Luísa Marques, Maria Vieira, José Condeço, Henrique Sousa, Carlos Henriques, et al. Energies, 2024 The cement industry is a significant contributor (around 8%) to CO2 global emissions. About 60% of the industry’s emissions come from limestone calcination, which is essential for clinker production, while 40% are the result of fuel combustion. Reducing these emissions is challenging due to limestone’s role as the primary raw material for cement. Cement plants are required to achieve carbon neutrality by 2050, as outlined in the 13th United Nations Sustainable Goals. One strategy to achieve this goal, involves Carbon Capture and utilization (CCU). Among the options for CO2 utilization, the Power-to-Liquid (PtL) strategy offers a means to mitigate CO2 emissions. In PtL, the CO2 captured from cement industrial flue gas is combined with the hydrogen generated by renewable electrolysis (green hydrogen) and is catalytically converted into renewable methanol (e-MeOH). In this sense, this review provides a comprehensive overview of the worldwide existing pilot and demonstration units and projects funded by the EU across several industries. It specifically focuses on PtL technology worldwide within cement plants. This work covers 18 locations worldwide, detailing technology existent at plants of different capacities, location, and project partners. Finally, the review analyses techno-economic assessments related to e-MeOH production processes, highlighting the potential impact on achieving carbon neutrality in the cement industry.
Sustainable Technologies in CO2 Utilization: The Production of Synthetic Natural Gas Catalysis for A Sustainable Environment Reactions Processes and Applied Technologies Volume 1 3, 2024
NO+: Infrared probe for basic zeolites F. Thibault-Starzyk, O. Marie, N. Malicki, A. Vos, R. Schoonheydt, et al. Studies in Surface Science and Catalysis, 2005