Synthesis, Structure, and Electrocatalysis of a Novel Compound Based on [β-Mo8O26]4− Cluster and [NiN4O2]2+ Secondary Building Unit

Using a flexible bis (triazole) ligand BBPTZ, where BBPTZ = 4,4'- bis (1,2,4-triazol-1-ylmethyl) biphenyl, a novel compound of [Ni 2 (BBPTZ) 4 ][β-Mo 8 O 26 ] ( 1 ) based on [NiN 4 O 2 ] 2+ secondary building unit (SBU) and [β-Mo 8 O 26 ] 4 – cluster was synthesized by hydrothermal method. In c...

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Bibliographic Details
Published in:Journal of cluster science 2022-07, Vol.33 (4), p.1613-1621
Main Authors: Zheng, Qiu-Hui, Ding, Yan-Xia, Chen, Chuang, Peng, Meng-Ting, Xu, Lin-Wei, Dong, Bao-Xia, Liu, Wen-Long
Format: Article
Language:English
Subjects:
Carbon
Catalysis
Chemistry
Chemistry and Materials Science
Clusters
Crystal structure
Data collection
Electrocatalysts
Electrodes
Fourier transforms
Hydrogen
Hydrogen evolution reactions
Inorganic Chemistry
Ligands
Nanochemistry
Original Paper
Oxidation
Physical Chemistry
Single crystals
Thermal stability
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Summary:Using a flexible bis (triazole) ligand BBPTZ, where BBPTZ = 4,4'- bis (1,2,4-triazol-1-ylmethyl) biphenyl, a novel compound of [Ni 2 (BBPTZ) 4 ][β-Mo 8 O 26 ] ( 1 ) based on [NiN 4 O 2 ] 2+ secondary building unit (SBU) and [β-Mo 8 O 26 ] 4 – cluster was synthesized by hydrothermal method. In compound 1 , the [NiN 4 O 2 ] 2+ SBUs serving as 2-connected joints were directly connected [β-Mo 8 O 26 ] 4 – clusters forming 1D inorganic strips. The adjacent strips were assembled through two types of BBPTZ ligands along the c axis, giving rise to 2D layers. It exhibits not only good thermal stability but also bifunctional electrocatalytic activity. When using it as the electrocatalyst for the electrochemical sensing for bromate, it shows a broad sensor range (1.35–4.75 mM) and comparable sensitivity of 62.39 µA cm −2  mM −1 . Moreover, it also exhibits a remarkable activity towards the hydrogen evolution reaction, with a 248 mV onset potential, a Tafel slope of 131 mV dec −1 , and a η 10 of 386 mV.
ISSN:1040-7278
1572-8862
DOI:10.1007/s10876-021-02082-9