BiS nanorod-stacked hollow microtubes self-assembled from bismuth-based metal-organic frameworks as advanced negative electrodes for hybrid supercapacitors

• Published in: Dalton transactions : an international journal of inorganic chemistry Vol. 48; no. 25; pp. 957 - 961
• Main Authors: Yu, Xianbo, Zhou, Jiaojiao, Li, Qin, Zhao, Wen-Na, Zhao, Shihang, Chen, Hongmei, Tao, Kai, Han, Lei
• Format: Journal Article
• Published: 25.06.2019
• ISSN: 1477-9226; 1477-9234
• DOI: 10.1039/c9dt01466g

Bismuth sulfide (Bi 2 S 3 ) with a lamellar structure has emerged as a promising negative electrode material for supercapacitors (SCs) due to its high theoretical specific capacity. Meanwhile, the improvement of electrochemical properties strongly depends on the size, shape and morphologies of Bi 2 S 3 nanomaterials. Herein, the hierarchical Bi 2 S 3 nanorod-stacked hollow microtubes are self-assembled through a facile self-sacrificing template strategy from bismuth-based metal-organic framework microprisms. Benefiting from the unique structures with a large specific surface area (54.3 m 2 g −1 ), the as-prepared Bi 2 S 3 exhibits an ultrahigh specific capacity (532 C g −1 at 1 A g −1 ) as a negative electrode for SCs, outperforming other reported Bi 2 S 3 materials. Bi 2 S 3 nanorods-stacked hollow microtubes as negative electrode for supercapacitors are derived from Bi-based MOFs microprisms.