US: A research team led by the University of Michigan’s Charles McCrory, in collaboration with the University of California, Davis (UCD) and the University of California, Los Angeles, has developed a process to capture CO₂ and convert it into metal oxalates for use in cement production. The method uses electrodes to transform carbon dioxide into oxalate, which binds with metal ions and precipitates as a solid suitable for alternative cement. The researchers reduced the required lead catalyst to parts per billion by modifying the polymer environment around the catalyst, mitigating environmental risks. The researchers next want to focus on scaling up the process and are working on electrolysis on a large scale.
UCD associate professor Jesús Velázquez said “Metal oxalates represent an underexplored frontier – serving as alternative cementitious materials, synthesis precursors and even carbon dioxide storage solutions.”
