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Liu, Tianqi
Publications (2 of 2) Show all publications
Shen, N., Li, J., Li, G., Hu, B., Li, J., Liu, T., . . . Huang, X. (2019). Designing Polymorphic Bi3+-Containing Ionic Liquids for Stimuli-Responsive Luminescent Materials. Inorganic Chemistry, 58(12), 8079-8085
Open this publication in new window or tab >>Designing Polymorphic Bi3+-Containing Ionic Liquids for Stimuli-Responsive Luminescent Materials
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2019 (English)In: Inorganic Chemistry, ISSN 0020-1669, E-ISSN 1520-510X, Vol. 58, no 12, p. 8079-8085Article in journal (Refereed) Published
Abstract [en]

Solid-state luminescent materials that possess reversible fluorescence changes toward external multistimuli are of immense interest because of their potential applications in data storage and sensors. While the recent developments in this field are mainly focused on the pi-conjugated organic molecules. Herein two polymorphic luminescent ionic liquid (IL)-based stimuli-responsive materials were designed by the supramolecular assemblies of an organic-decorated chlorobismuthate anion and a rotationally flexible imidazolium cation, namely, alpha (1)/beta (2)-[Bmmim][BiCl4(2,2'-bpy)] (Bmmim = 1-butyl-2,3-dimethylimidazolium; 2,2'-bpy = 2,2'-bipyridine). Because of the different conformations of the n-butyl chains on the imidazolium cations, tuning of the supramolecular packing structures as well as luminescent colors for 1 and 2 was realized. Single-crystal X-ray diffraction and Hirshfeld surface analyses disclose that the poly-morphism-dependent emission may be attributed to the different weak interactions, especially to the pi-pi interactions between adjacent [BiCl4(2,2'-bpy)](-) anions in two compounds. Additionally, compound 2 could be transformed into 1 spontaneously at ambient conditions, which could be triggered by the moisture in the air. Both of the title compounds could detect NH(3 )vapor selectively through the luminescence "turn-off" method rapidly and reversibly because of the destruction of intermolecular interactions, indicating their stimuli-responsive property toward NH3.

Place, publisher, year, edition, pages
American Chemical Society (ACS), 2019
National Category
Chemical Sciences
urn:nbn:se:kth:diva-255319 (URN)10.1021/acs.inorgchem.9b00813 (DOI)000472241400050 ()31141353 (PubMedID)2-s2.0-85066474271 (Scopus ID)

QC 20190805

Available from: 2019-08-05 Created: 2019-08-05 Last updated: 2019-08-05Bibliographically approved
Liu, T., Zhang, B. & Sun, L. (2019). Iron-Based Molecular Water Oxidation Catalysts: Abundant, Cheap, and Promising. Chemistry - An Asian Journal, 14(1), 31-43
Open this publication in new window or tab >>Iron-Based Molecular Water Oxidation Catalysts: Abundant, Cheap, and Promising
2019 (English)In: Chemistry - An Asian Journal, ISSN 1861-4728, E-ISSN 1861-471X, Vol. 14, no 1, p. 31-43Article, review/survey (Refereed) Published
Abstract [en]

An efficient and robust water oxidation catalyst based on abundant and cheap materials is the key to converting solar energy into fuels through artificial photosynthesis for the future of humans. The development of molecular water oxidation catalysts (MWOCs) is a smart way to achieve promising catalytic activity, thanks to the clear structures and catalytic mechanisms of molecular catalysts. Efficient MWOCs based on noble-metal complexes, for example, ruthenium and iridium, have been well developed over the last 30 years; however, the development of earth-abundant metal-based MWOCs is very limited and still challenging. Herein, the promising prospect of iron-based MWOCs is highlighted, with a comprehensive summary of previously reported studies and future research focus in this area.

Place, publisher, year, edition, pages
artificial photosynthesis, electrochemistry, iron, molecular catalysts, oxidation, water splitting
National Category
Chemical Sciences
urn:nbn:se:kth:diva-241314 (URN)10.1002/asia.201801253 (DOI)000454953700003 ()30362258 (PubMedID)2-s2.0-85057257052 (Scopus ID)

QC 20190125

Available from: 2019-01-25 Created: 2019-01-25 Last updated: 2019-01-25Bibliographically approved

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