Self-Calibration Temperature Sensing and Color Tunable Emission in a Bimetallic Lanthanide Metal–Organic Framework

IF 3.7 2区化学 Q2 CHEMISTRY, APPLIED

Applied Organometallic Chemistry Pub Date : 2024-08-06 DOI:10.1002/aoc.7665

Xiuzhen Li, Xiangyue Qi, Xihui Diao, Yaseen Muhammad, Chao Chen, Hao Wang, Chuansong Qi, Wei Li

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Abstract

Temperature in various scientific and industrial applications requires accurate detection and measurement. Herein, a range of novel isostructural lanthanide-based metal–organic frameworks (Ln-MOFs), [Eu_xTb_2−x(3,5-pdc)₃(phen)₂(H₂O)₂]_n (x = 0, Tb-MOF; x = 2, Eu-MOF; x = 0.002, 0.010, 0.020, 0.040, 0.080, Eu_xTb_2−x-MOF), were solvothermally synthesized using 3,5-pyridinedicarboxylic acid (3,5-H₂pdc) and 1,10-phenanthroline (phen) as ligands. Based on binuclear second building units, Ln-MOFs exhibited 2D layered structure with sql topology. The luminescent properties of series Ln-MOFs show systematic tuning shifted from green to red by adjusting the ratio of Eu³⁺ to Tb³⁺. The temperature sensing experiments showed that Eu_0.020Tb_1.980-MOF exhibited self-calibration temperature response in a range of 293–413 K, achieving maximum relative sensitivity (S_r) 2.46%·K⁻¹ at 413 K, outscoring many state-of-the-art temperature sensors reported in literature. This study poses great promise of the newly designed Eu_0.020Tb_1.980-MOF for the ultra-sensitive temperature sensing in diverse and large-scale applications.

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双金属镧系元素金属有机框架的自校准温度传感和色彩可调发射

在各种科学和工业应用中，温度需要精确的检测和测量。在此，研究人员溶解了一系列新型等结构镧系金属有机框架（Ln-MOFs）[EuxTb2-x(3,5-pdc)3(phen)2(H2O)2]n（x = 0，Tb-MOF；x = 2，Eu-MOF；x = 0.002、0.010、0.020、0.040、0.080，EuxTb2-x-MOF），以 3,5-吡啶二羧酸（3,5-H2pdc）和 1,10-菲罗啉（phen）为配体进行溶解热合成。基于双核第二构建单元，Ln-MOFs 呈现出具有 sql 拓扑结构的二维层状结构。通过调整 Eu3+ 与 Tb3+ 的比例，系列 Ln-MOFs 的发光特性呈现出从绿色到红色的系统性调整。温度传感实验表明，Eu0.020Tb1.980-MOF 在 293-413 K 范围内表现出自校准温度响应，在 413 K 时达到最大相对灵敏度（Sr）2.46%-K-1，超过了文献报道的许多最先进的温度传感器。这项研究为新设计的 Eu0.020Tb1.980-MOF 在各种大规模应用中实现超灵敏温度传感带来了巨大希望。

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来源期刊

Applied Organometallic Chemistry 化学-无机化学与核化学

CiteScore

7.80

自引率

10.30%

发文量

408

审稿时长

2.2 months

期刊介绍： All new compounds should be satisfactorily identified and proof of their structure given according to generally accepted standards. Structural reports, such as papers exclusively dealing with synthesis and characterization, analytical techniques, or X-ray diffraction studies of metal-organic or organometallic compounds will not be considered. The editors reserve the right to refuse without peer review any manuscript that does not comply with the aims and scope of the journal. Applied Organometallic Chemistry publishes Full Papers, Reviews, Mini Reviews and Communications of scientific research in all areas of organometallic and metal-organic chemistry involving main group metals, transition metals, lanthanides and actinides. All contributions should contain an explicit application of novel compounds, for instance in materials science, nano science, catalysis, chemical vapour deposition, metal-mediated organic synthesis, polymers, bio-organometallics, metallo-therapy, metallo-diagnostics and medicine. Reviews of books covering aspects of the fields of focus are also published.