Life Cycle Assessment of Metal–Organic Frameworks: Sustainability Study of Zeolitic Imidazolate Framework-67

Escobar-Hernandez, Harold U.; Quan, Yufeng; Papadaki, Maria; Wang, Qingsheng

doi:10.1021/acssuschemeng.2c07276

Cited by 9 publications

(1 citation statement)

References 20 publications

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“…Introducing a life-cycle assessment (LCA) and obtaining environmental impacts for the system-scale perspective achieve a more comprehensive evaluation. Currently, LCA on the practical applications of MOFs in DAC is primarily limited to the sample-scale studies, with a greater focus on the environmental impacts during sample preparation processes 42,43 , the from the system-scale perspective is still urgently required.…”

Section: Reactor-scale Practical Applicationsmentioning

confidence: 99%

Solar thermal energy-assisted direct capture of CO2 from ambient air for methanol synthesis

Li,

Chen,

Wang

et al. 2024

npj Mater. Sustain.

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Solar thermal energy-assisted direct air capture (DAC) is widely considered as a novel carbon-negative technical route, innovatively enabling an effective removal of CO2 directly from ambient air. Here, we introduce an advanced concept that involves the conversion of CO2 captured by the solar thermal energy-assisted DAC into liquid methanol, simultaneously mitigating climate change and supplying green chemicals. This concept revolves around a well-considered integration of existing systems, and we emphasize key technologies for capturing, separating, and utilizing CO2 in this integrated system. Advances in Metal-Organic Frameworks (MOFs) based-DAC are reviewed, while the utilization of solar thermal energy further ensures the carbon-negative nature of DAC. Upcycling CO2 captured by DAC into value-added methanol adds both environmental benefits and economic feasibilities, which is also beneficial to achievinga circular carbon economy. The current status, ongoing developments, and anticipated future trends in this technology integration are timely addressed, the considerable application potential of integrated system is also comprehensively discussed.

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Section: Reactor-scale Practical Applicationsmentioning

confidence: 99%

Solar thermal energy-assisted direct capture of CO2 from ambient air for methanol synthesis

Li,

Chen,

Wang

et al. 2024

npj Mater. Sustain.

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Challenges and Opportunities: Metal–Organic Frameworks for Direct Air Capture

Bose,

Sengupta,

Rayder

et al. 2023

Adv Funct Materials

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Global reliance on fossil fuel combustion for energy production has contributed to the rising concentration of atmospheric CO2, creating significant global climate challenges. In this regard, direct air capture (DAC) of CO2 from the atmosphere has emerged as one of the most promising strategies to counteract the harmful effects on the environment, and the further development and commercialization of this technology will play a pivotal role in achieving the goal of net‐zero emissions by 2050. Among various DAC adsorbents, metal–organic frameworks (MOFs) show great potential due to their high porosity and ability to reversibly adsorb CO2 at low concentrations. However, the adsorption efficiency and cost‐effectiveness of these materials must be improved to be widely deployed as DAC sorbents. To that end, this perspective provides a critical discussion on several types of benchmark MOFs that have demonstrated high CO2 capture capacities, including an assessment of their stability, CO2 capture mechanism, capture‐release cycling behavior, and scale‐up synthesis. It then concludes by highlighting limitations that must be addressed for these MOFs to go from the research laboratory to implementation in DAC devices on a global scale so they can effectively mitigate climate change.

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Cradle‐to‐Gate Environmental Impact Assessment of Commercially Available Metal‐Organic Frameworks Manufacturing

Dutta,

Walden,

Sinelshchikova

et al. 2024

Adv Funct Materials

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Metal‐organic frameworks (MOFs) are promising next‐generation crystalline porous materials with exceptional structural, chemical, and application diversity. Since their discovery, the reticular tunability and physiochemical properties of MOFs have been studied and carefully manipulated to make them suitable for a wide variety of applications. After decades of research, these materials are moving from the benchtop to commercial, industrial‐scale production. Although MOFs are now widely explored, the overall environmental impacts of these emerging materials are still underexplored. In this work, the first example of overall assessment of ten industrially produced and widely explored MOFs considering 18 diverse environmental impact categories such as global warming potential, fossil resource scarcity, water consumption, ecotoxicity, etc. via cradle‐to‐gate life cycle assessment is presented. Importantly, this study presents a comprehensive comparison between different synthetic methods of each MOF and compiles the environmental impacts associated only with the individual “synthesis” or “washing” steps. This study highlights the critical importance of using of green solvents over organic to reduce the overall environmental footprint. By identifying the synthetic drawbacks associated with different methods, this work provides a blueprint for the sustainable design and required future development of MOF synthesis.

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Life Cycle Assessment of Metal–Organic Frameworks: Sustainability Study of Zeolitic Imidazolate Framework-67

Cited by 9 publications

References 20 publications

Solar thermal energy-assisted direct capture of CO2 from ambient air for methanol synthesis

Solar thermal energy-assisted direct capture of CO2 from ambient air for methanol synthesis

Challenges and Opportunities: Metal–Organic Frameworks for Direct Air Capture

Cradle‐to‐Gate Environmental Impact Assessment of Commercially Available Metal‐Organic Frameworks Manufacturing

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