Synthesis of two novel cobalt-based coordination polymers and their application in photocatalytic CO2 reduction

IF 3.2 3区化学 Q2 CHEMISTRY, INORGANIC & NUCLEAR

Journal of Solid State Chemistry Pub Date : 2025-03-19 DOI:10.1016/j.jssc.2025.125335

Jiayu Li, Lun Zhao, Ziyun Wang, Guanying Song, Hongwei Jing, Hang Zhou, Zhiheng Xu, Hang Yin, Shiyu Yan

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Abstract

In this paper, two novel cobalt-based coordination polymers named [Co₃(H₂L)₂ (bimy) (H₂O)₂]_n (compound 1) and {[Co₂(H₃L) (bib)₂(H₂O)₃]·(H₂O)}_n (compound 2) were synthesized under hydrothermal conditions. The structure of them was characterized by powder X-ray diffraction, single crystal X-ray diffraction, elemental analysis, thermogravimetric analysis, XPS test, SEM test, BET test and infrared analysis. Subsequently, their potential application in photocatalytic CO₂ reduction was systematically explored. The results showed that both compound 1 and compound 2 had good photocatalytic CO₂ reduction performance. When the two compounds were used as catalysts, under the optimal reaction conditions, the generation rates of the reduced products CO was 60.2571 μmol g⁻¹·h⁻¹and 56.4035 μmol g⁻¹ h⁻¹, respectively. Both of them had good stability because their structure did not change before and after the experiment.

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两种新型钴基配位聚合物的合成及其在光催化CO2还原中的应用

本文在水热条件下合成了两种新型钴基配位聚合物[Co3(H2L)2 (biy) (H2O)2]n（化合物1）和{[Co2(H3L) (bib)2(H2O)3]·（H2O）}n（化合物2）。通过粉末x射线衍射、单晶x射线衍射、元素分析、热重分析、XPS测试、SEM测试、BET测试和红外分析对其结构进行了表征。随后，系统探讨了它们在光催化CO2还原中的潜在应用。结果表明，化合物1和化合物2均具有良好的光催化CO2还原性能。以这两种化合物为催化剂，在最佳反应条件下，还原产物CO的生成速率分别为60.2571 μmol g−1·h−1和56.4035 μmol g−1 h−1。两者的结构在实验前后都没有发生变化，具有很好的稳定性。

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来源期刊

Journal of Solid State Chemistry 化学-无机化学与核化学

CiteScore

6.00

自引率

9.10%

发文量

848

审稿时长

25 days

期刊介绍： Covering major developments in the field of solid state chemistry and related areas such as ceramics and amorphous materials, the Journal of Solid State Chemistry features studies of chemical, structural, thermodynamic, electronic, magnetic, and optical properties and processes in solids.