学术成果

Academic Achievements

Communications Chemistry volume 5, Article number: 123 (2022) Cite this article
Angew Chem Int Ed Engl . 2022 Jun 13;61(24):e202201908. doi: 10.1002/anie.202201908. Epub 2022 Apr 7.
J Am Chem Soc . 2019 Mar 27;141(12):4990-4996. doi: 10.1021/jacs.9b00093. Epub 2019 Mar 12.
The discovery of new inorganic functional materials is of fundamental importance in synthetic and materials science. In the past, the discovering new materials relied on a slow and serendipitous trial-and-error process, especially in the well-studied oxide systems. Here, we presented a strategy to shorten the period of discovery of new complex metal oxide materials by rapid phase identification and structure determination with 3D electron diffraction (ED) techniques, which do not require pure samples or single crystal growth. With such strategy, three new complex metal oxide materials (BiTi0.855Fe1.145O4.93, BiTi4FeO11 and BiTi2FeO7) were discovered in the simple ternary Bi2O3-Fe2O3-TiO2 system. To our best knowledge, it is the first time to discover three new complex metal oxide materials with new structure types in a single study of ternary metal oxide system. The structures of new materials were refined by combining powder X-ray diffraction (PXRD) with powder neutron diffraction (PND). The most striking feature in this system is that BiTi0.855Fe1.145O4.93 presents edge-shared five-coordinated iron/titanium polyhedra. In addition, another new phase BiTi4GaO11, which is isostructural with BiTi4FeO11, can be obtained when replacing Fe in BiTi4FeO11 with Ga. The band structure investigation of BiTi0.855Fe1.145O4.93, BiTi4FeO11, BiTi2FeO7 and BiTi4GaO11 shown that they were semiconductors with band gaps of 1.65, 2.0, 1.9, and 2.8 eV, respectively. Although this study focused on rapid developing of new inorganic functional materials, this method for developing new materials is available to all fields in chemistry and material chemistry where the limiting factors are impurity, submicrometer-sized crystals, etc.
Angew Chem Int Ed Engl . 2020 Jan 13;59(3):1166-1170. doi: 10.1002/anie.201912488. Epub 2019 Nov 27.
Nat Mater . 2021 Feb;20(2):222-228. doi: 10.1038/s41563-020-00847-7. Epub 2020 Nov 23.
Nat Nanotechnol . 2021 May;16(5):599-605. doi: 10.1038/s41565-021-00855-x. Epub 2021 Feb 22.
Angew Chem Int Ed Engl . 2022 Jun 13;61(24):e202203584. doi: 10.1002/anie.202203584. Epub 2022 Apr 13.
Nat Commun . 2022 Jul 11;13(1):4016. doi: 10.1038/s41467-022-31524-9.
Nature, volume 458, pages 1154–1157 (2009)
Nature, volume 524, pages 74–78 (2015)
Nature Chemistry, volume 12, pages 620–628 (2020)
Cell, volume 148, issues 1–2, pages 213-227