High performance of metal-organic framework-derived catalyst supported by tellurium nanowire for oxygen reduction reaction. (October 2020)

• Record Type: Journal Article
• Authors: Wu, Cheng-Hao; Wang, Kai-Chin; Chang, Sun-Tang; Chang, Yu-Chung; Chen, Hsueh-Yu; Yamanaka, Ichiro; Chiang, Tai-Chin; Huang, Hsin-Chih; Wang, Chen-Hao
• Is Part Of: Renewable energy. Volume 158(2020)
• Page Start: 324
• Page End: 331
• Publication Date: 2020-10
• Subjects: Nanowire tellurium -- Metal-organic framework -- Zeolitic imidazolate framework-67 -- Oxygen reduction reaction -- Catalyst; Renewable energy sources -- Periodicals; Power resources -- Periodicals; Énergies renouvelables -- Périodiques; Ressources énergétiques -- Périodiques; 333.794
• DOI: 10.1016/j.renene.2020.05.114
• Languages: English
• ISSNs: 0960-1481

Abstract

Abstract: In this study, a tellurium nanowire (NwTe) structure was synthesized as a template, and then a nanoscale zeolitic imidazolate framework 67 (Nano-Z67) was subsequently grown on it, denoted as Nano-Z67/NwTe. After pyrolyzed at a high temperature, the coordinated cobalt ion of Nano-Z67 and NwTe were transferred into the CoTe nanorods, which were encapsulated by a nitrogen-containing carbon nanowire (CN). The Nano-Z67/NwTe catalyzes the oxygen reduction reaction (ORR) with the electron-transfer number of 3.997 which is high than that of Pt/C with 3.995. The high ORR activity of Nano-Z67/NwTe attributed to the cobalt–nitrogen bond, carbon-nitrogen bond, and the NwTe-templated specific morphology, in which the CN serves as the conductive channel for electron transport. Remarkably, Nano-Z67/NwTe-750 not only demonstrates competitive performance compared with the Pt/C catalyst but also excellent stability. Graphical abstract: A nanoscale zeolitic imidazolate framework 67 (Nano-Z67) on a tellurium nanowire (NwTe) template catalyst (Nano-Z67/NwTe) presents high ORR activity. Image 1 Highlights: Nanoscale ZIF-67 on tellurium nanowire is used to synthesize the ORR electrocatalyst. Nano-Z67/NwTe demonstrates competitive ORR performance compared with the Pt/C. Specific morphology and nitrogen-relative groups could catalyze the ORR efficiently.