Liquid monomer phase exfoliation of non-van der Waals hematite and processing of poly(methyl methacrylate) hematene composite substrates

IF 1.8 4区 材料科学 Q3 MATERIALS SCIENCE, MULTIDISCIPLINARY
Urice Tohgha, Kyle Carothers, Douglas M. Krein, Michael C. Brennan, Gelu Costin, Chandra Sekhar Tiwary, Tod A. Grusenmeyer, Michael E. McConney, Peter R. Stevenson
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引用次数: 0

Abstract

Liquid phase exfoliation of non-van der Waals materials has generated renewed interest in fundamental optical and electronic materials discovery and processing. However, such approaches can limit access to novel two-dimensional materials due to the chemistry of exfoliation and processing conditions employed (e.g., processing temperature, mechanical energy input, volatile organic compounds, and sensitive redox chemistries). Here, we demonstrate the exfoliation of bulk hematite (α-Fe2O3) powder using a mild bath sonication methodology in liquid monomer media to form stable colloidal dispersions with quasi-two-dimensional hematene nanoflakes. These colloidal dispersions were further processed to form hematene poly(methyl methacrylate) matrix composite substrates.

Graphical abstract

Abstract Image

非范德华赤铁矿的液态单体相剥离以及聚(甲基丙烯酸甲酯)赤烯复合基材的加工
非范德华材料的液相剥离重新激发了人们对基础光学和电子材料发现与加工的兴趣。然而,由于剥离化学和加工条件(如加工温度、机械能输入、挥发性有机化合物和敏感的氧化还原化学)的影响,这种方法可能会限制新型二维材料的获得。在此,我们展示了在液态单体介质中使用温和的水浴超声方法剥离块状赤铁矿(α-Fe2O3)粉末,形成具有准二维赤铁矿纳米片的稳定胶体分散体。这些胶体分散体经进一步处理后可形成赤藓烯聚(甲基丙烯酸甲酯)基质复合基底。
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来源期刊
MRS Communications
MRS Communications MATERIALS SCIENCE, MULTIDISCIPLINARY-
CiteScore
2.60
自引率
10.50%
发文量
166
审稿时长
>12 weeks
期刊介绍: MRS Communications is a full-color, high-impact journal focused on rapid publication of completed research with broad appeal to the materials community. MRS Communications offers a rapid but rigorous peer-review process and time to publication. Leveraging its access to the far-reaching technical expertise of MRS members and leading materials researchers from around the world, the journal boasts an experienced and highly respected board of principal editors and reviewers.
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