CO₂
-
Environment
Computer simulations suggest that CO2 can be stored underground indefinitely
Flow structure. Credit: Geophysical Research Book (2025). doi:10.1029/2025GL114804 If you want to save the climate, you must stop the release of carbon dioxide (CO2). There is no doubt about that. But that’s not enough. Additionally, it needs to be stored permanently by capturing CO2 already present in the atmosphere and sending it deep into the ground, for example. This naturally…
Read More » -
Chemistry
Catalyst systems increase the efficiency of CO₂ conversion of clean energy
Schematic diagram of the enhanced CO2 conversion reaction achieved by the synergistic effect of dual single atom catalysts. Credit: Korea Institute of Materials Science (Kims) As climate change and the severity of carbon emissions become a global concern, there is an urgent need for technology to convert carbon dioxide (CO2) into resources such as chemical fuels and compounds.韓国材料科学研究所（KIMS）のナノ材料研究部門のDahee Park博士の研究チームは、Kaistの化学科のJeong-Young Park教授のチームと協力して、触媒技術を開発する触媒技術を開発しました.…
Read More » -
Chemistry
From e-waste to gold: the path to CO₂ sustainability
Synthesis of TTF-COF and TPE-COF. Credit: Nature Communications (2024). DOI: 10.1038/s41467-024-55156-3 A Cornell University-led research team has developed a method to extract gold from e-waste and use the recovered precious metal as a catalyst to convert the greenhouse gas carbon dioxide (CO2) into organic materials. According to Amin Zadehnazari, a postdoctoral researcher in Yongkeun Joh Associate’s Alireza Abbaspourrad lab, this…
Read More » -
Chemistry
From CO₂ to acetaldehyde: new copper catalyst offers green alternative to fossil fuel-based processes
Copper cluster catalyst on activated carbon. Credit: Cedric Coolen (EPFL) Acetaldehyde is an important chemical used in the production of everything from perfume to plastics. Currently, its production relies primarily on the petrochemical ethylene. However, growing environmental concerns have pushed the chemical industry to reduce its dependence on fossil fuels, and scientists have been searching for more environmentally friendly ways…
Read More » -
Nanotechnology
Unique copper nanocluster design increases selectivity in CO₂ reduction
Detailed structures of two different Cu14 NCs protected by two different thiols investigated in this study. These NCs exhibit various intercluster interactions that shape the stability and reaction selectivity of the electrochemical CO2 reduction reaction. Credit: Small (2024). DOI: 10.1002/smll.202409910 The humble copper (Cu) may not have the allure of gold or silver, but its incredible versatility makes it invaluable…
Read More » -
Chemistry
Conversion of marine waste and carbonated water into hydrogels by CO₂ emission behavior
Carbon dioxide creates the acidic environment necessary for calcium ions to bind alginate chains and form a hydrogel. However, the rapid release of CO2 after gelation limits the availability of calcium ions and reduces the cross-linking of alginate chains. Credit: Reprinted from Teshima et al. With permission from the Royal Society of Chemistry Hydrogels are soft materials made of cross-linked…
Read More » -
Earth
Study finds that calcium reduces CO₂ emissions from Arctic soil through mineral formation
Written by Leibniz Zentrum Far Agralandschaftforschung (ZALF) eV Graphical summary. Credit: Environmental Science and Technology (2024). DOI: 10.1021/acs.est.4c07496 In a new study, researchers found that increasing calcium content in soil significantly reduces CO2 emissions. 50% in calcium-poor soils and 57% in calcium-rich soils. The reason is that calcium promotes the formation of the aragonite mineral, which binds CO2 and prevents…
Read More » -
Environment
Researchers discover that extreme El Niño events cause short-term CO₂ fluctuations
Sensitivity of AGR to tropical MAT (γT) over a 25-year moving window from 1959 to 2020 (see Materials and Methods). Credit: Science Advances (2024). DOI: 10.1126/sciadv.adl6155 Recent research challenges previous assumptions about the relationship between atmospheric carbon dioxide and tropical temperatures. Between 1959 and 2011, atmospheric CO₂ content responded twice as strongly to temperatures in the tropics than before. This…
Read More »
