{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"submitter":["Lee J"],"funding":["Ministry of Trade, Industry and Energy","National Research Council of Science and Technology","National Research Council of Science & Technology","Korea Institute of Science and Technology"],"pagination":["e2500383"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12464797"],"repository":["biostudies-literature"],"omics_type":["Unknown"],"volume":["9(9)"],"pubmed_abstract":["MXenes, a class of 2D transition metal carbides and nitrides, exhibit exceptional electrical conductivity and solution dispersibility, making them promising materials for various applications. However, their long-term stability remains a critical challenge due to oxidation in aqueous dispersions. While the transformation of these dispersions into water-redispersible dry monoliths is highly desirable, achieving this has proven difficult. This study introduces a facile approach to enhance the redispersion yield of dried MXene monoliths by incorporating trace amounts of metal cations (Li<sup>+</sup>, Mg<sup>2+</sup>, and Al<sup>3+</sup>) into aqueous dispersions prior to lyophilization. These cations intercalate between MXene sheets, acting as atomic pillars that inhibit face-to-face restacking and facilitate water infiltration during redispersion. Systematic investigations reveal that optimal cation concentrations significantly improve redispersion efficiency without inducing flocculation, achieving yields of up to 100% for Li<sup>+</sup>-modified MXenes. Characterization of redispersed MXene nanosheets confirms preserved morphology and structural integrity. Furthermore, compared to the pristine MXene counterparts, MXene films made from cation-aided redispersions show higher electrical conductivity and electromagnetic interference shielding performances. This simple yet effective strategy addresses key challenges in MXene storage and processing, enabling reliable solution-based fabrication for energy storage, sensing, and electronic applications."],"journal":["Small methods"],"pubmed_title":["Achieving Full Redispersion of Dried MXene Monoliths via Trace Metal Cation Intercalation."],"pmcid":["PMC12464797"],"funding_grant_id":["P0028332","CRC22031‐000","CRC22031-000","2V10572"],"pubmed_authors":["Jang JM","Lee J","Cho SH","Woo SH","Kang YC","Kim SJ"],"additional_accession":[]},"is_claimable":false,"name":"Achieving Full Redispersion of Dried MXene Monoliths via Trace Metal Cation Intercalation.","description":"MXenes, a class of 2D transition metal carbides and nitrides, exhibit exceptional electrical conductivity and solution dispersibility, making them promising materials for various applications. However, their long-term stability remains a critical challenge due to oxidation in aqueous dispersions. While the transformation of these dispersions into water-redispersible dry monoliths is highly desirable, achieving this has proven difficult. This study introduces a facile approach to enhance the redispersion yield of dried MXene monoliths by incorporating trace amounts of metal cations (Li<sup>+</sup>, Mg<sup>2+</sup>, and Al<sup>3+</sup>) into aqueous dispersions prior to lyophilization. These cations intercalate between MXene sheets, acting as atomic pillars that inhibit face-to-face restacking and facilitate water infiltration during redispersion. Systematic investigations reveal that optimal cation concentrations significantly improve redispersion efficiency without inducing flocculation, achieving yields of up to 100% for Li<sup>+</sup>-modified MXenes. Characterization of redispersed MXene nanosheets confirms preserved morphology and structural integrity. Furthermore, compared to the pristine MXene counterparts, MXene films made from cation-aided redispersions show higher electrical conductivity and electromagnetic interference shielding performances. This simple yet effective strategy addresses key challenges in MXene storage and processing, enabling reliable solution-based fabrication for energy storage, sensing, and electronic applications.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Sep","modification":"2026-06-03T21:06:38.592Z","creation":"2026-05-30T03:07:20.742Z"},"accession":"S-EPMC12464797","cross_references":{"pubmed":["40317668"],"doi":["10.1002/smtd.202500383"]}}