Bochi Yu, Marko Pranic, Serena Rizzo, Maaike A. Sikma, Alex N.C. Gosselt, Sifra van der Vis, Nora B. Sutton and Gabriel Sigmund*,
{"title":"","authors":"Bochi Yu, Marko Pranic, Serena Rizzo, Maaike A. Sikma, Alex N.C. Gosselt, Sifra van der Vis, Nora B. Sutton and Gabriel Sigmund*, ","doi":"","DOIUrl":"","url":null,"abstract":"","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 7","pages":"XXX-XXX XXX-XXX"},"PeriodicalIF":8.9,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://pubs.acs.org/doi/pdf/10.1021/acs.estlett.5c00375","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144569718","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Kelsey J. Pieper*, Edward Beighley, C. Nathan Jones, Kyla Drewry, Reza Jamshidi, Yuyang Li, Larry Michael, Wilson Mize, Jon Fowlkes, Andrew Blethen, Qi R. Wang, Emily Bailey, Michael Kane, Chris Goforth, Evan Kane, Rachael McCaully, Cassidy King, Alisha Webb, Brooke Goggins, Bhavya Duvvuri, Elizabeth Bartuska, Tiffany Tang and Weiyu Li,
Landon Hardee, H. Todd Schaef, Dushyant Barpaga, C. Heath Stanfield, Jarrod V. Crum, Lawrence M. Anovitz, Kevin M. Rosso, Quin R. S. Miller* and Briana Aguila-Ames*,
{"title":"Interfacial Hydrophilicity Controls Mineral Transformation Outcomes for Enstatite and Amorphous MgSiO3","authors":"Landon Hardee, H. Todd Schaef, Dushyant Barpaga, C. Heath Stanfield, Jarrod V. Crum, Lawrence M. Anovitz, Kevin M. Rosso, Quin R. S. Miller* and Briana Aguila-Ames*, ","doi":"10.1021/acs.estlett.5c00487","DOIUrl":"https://doi.org/10.1021/acs.estlett.5c00487","url":null,"abstract":"<p >Subsurface injection of carbon dioxide (CO<sub>2</sub>) into mafic-ultramafic rocks for permanent storage via mineralization is being studied to reduce emissions. We investigated the carbonation products of enstatite (MgSiO<sub>3</sub>) to assess its efficiency in sequestering CO<sub>2</sub> for safe and permanent storage as carbonate minerals. This was accomplished by conducting variable temperature carbonation reactions with samples of differing crystallinities and surface chemistries. Reaction progress was monitored utilizing in situ X-ray diffraction, and the presence of carbonate products was confirmed using additional techniques, such as thermogravimetric analysis coupled with mass spectrometry and scanning electron microscopy with energy dispersive spectrometry. Our results show that crystalline enstatite produces small amounts of the anhydrous form of MgCO<sub>3</sub> (magnesite), while amorphous MgSiO<sub>3</sub>, which was used to simulate mafic glass, more readily converts to the hydrated/hydroxylated hydromagnesite [Mg<sub>5</sub>(CO<sub>3</sub>)<sub>4</sub>(OH)<sub>2</sub>·4H<sub>2</sub>O]. These results, supplemented with dynamic vapor sorption experiments, suggest that surface properties play a significant role in the pathway and degree of carbonation. These developments concerning the reactivity of CO<sub>2</sub> with reactive mafic phases will help further our understanding of the reactivity of these mafic-ultramafic minerals with implications for permanent carbon storage and other subsurface engineering scenarios involving reactive reservoirs.</p>","PeriodicalId":37,"journal":{"name":"Environmental Science & Technology Letters Environ.","volume":"12 8","pages":"951–962"},"PeriodicalIF":8.8,"publicationDate":"2025-07-08","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"144813809","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":2,"RegionCategory":"环境科学与生态学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}