دورية أكاديمية
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Stepwise assembly and reversible structural transformation of ligated titanium coated bismuth-oxo cores: shell morphology engineering for enhanced chemical fixation of CO 2 .

التفاصيل البيبلوغرافية
العنوان: Stepwise assembly and reversible structural transformation of ligated titanium coated bismuth-oxo cores: shell morphology engineering for enhanced chemical fixation of CO 2 .
المؤلفون: Ding QR; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China Lzhang@fjirsm.ac.cn.; University of Chinese Academy of Sciences, Chinese Academy of Sciences Beijing 100049 P. R. China., Yu Y; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China Lzhang@fjirsm.ac.cn., Cao C; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China Lzhang@fjirsm.ac.cn., Zhang J; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China Lzhang@fjirsm.ac.cn., Zhang L; State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences Fuzhou Fujian 350002 P. R. China Lzhang@fjirsm.ac.cn.
المصدر: Chemical science [Chem Sci] 2022 Feb 01; Vol. 13 (12), pp. 3395-3401. Date of Electronic Publication: 2022 Feb 01 (Print Publication: 2022).
نوع المنشور: Journal Article
اللغة: English
بيانات الدورية: Publisher: Royal Society of Chemistry Country of Publication: England NLM ID: 101545951 Publication Model: eCollection Cited Medium: Print ISSN: 2041-6520 (Print) Linking ISSN: 20416520 NLM ISO Abbreviation: Chem Sci Subsets: PubMed not MEDLINE
أسماء مطبوعة: Original Publication: Cambridge, UK : Royal Society of Chemistry, [2010]-
مستخلص: Herein, we report the stepwise assembly and reversible transformation of atomically precise ligated titanium coated bismuth-oxide core nanostructures. The soluble and stable Bi 38 O 45 @Ti 6 -oxo clusters with weakly coordinated surface salicylate ligands were first prepared as precursors. Owing to the high surface reactivity of the Bi 38 O 45 inner core, its shell composition and morphology could be systemically modified by assembly with various Ti ions and auxiliary ligands (L), especially those with different flexibility, bridging ability and steric hindrance. As a result, a series of new core-shell Bi 38 O 44/45 @Ti x L-oxo ( x = 14, 16, 18 or 20) clusters containing gradually increasing shell Ti atoms were successfully synthesized. Among them, the Bi 38 Ti 20 -oxo cluster is the largest one in the family of heterometallic Bi/Ti-oxo clusters to date. In addition, the sensitized titanium outer shell can effectively improve the photocurrent response under visible light irradiation. More remarkably, the obtained core-shell Bi 38 O 44/45 @Ti x L-oxo clusters can serve as stable and efficient catalysts for CO 2 cycloaddition with epoxides under ambient conditions, whose activity was significantly influenced by the outer ligated titanium shell structure. This work provides a new insight into the construction of atomically precise heterometallic core-shell nanostructures and also an interesting shell engineering strategy for tuning their physicochemical properties.
Competing Interests: There are no conflicts to declare.
(This journal is © The Royal Society of Chemistry.)
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تواريخ الأحداث: Date Created: 20220418 Latest Revision: 20231103
رمز التحديث: 20231103
مُعرف محوري في PubMed: PMC8943896
DOI: 10.1039/d1sc06847d
PMID: 35432876
قاعدة البيانات: MEDLINE
الوصف
تدمد:2041-6520
DOI:10.1039/d1sc06847d