Br/Co/N Co-doped porous carbon frameworks with enriched defects for high-performance electrocatalysis. Issue 21 (19th May 2020)

• Record Type: Journal Article
• Authors: Dilpazir, Sobia; Liu, Rongji; Yuan, Menglei; Imran, Muhammad; Liu, Zhanjun; Xie, Yongbing; Zhao, He; Zhang, Guangjin
• Is Part Of: Journal of materials chemistry. Volume 8:Issue 21(2020)
• Page Start: 10865
• Page End: 10874
• Publication Date: 2020-05-19
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d0ta02411b
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : First ZIF-67 derived doped, defect-enriched porous carbon frameworks is reported via a novel self-sacrificing strategy with outstanding performance for ORR, HER and OER and allow the assembly of Zn–air batteries and overall water splitting devices. Abstract : Defect engineering through heteroatom doping is one of the most important strategies towards the development of catalytic active materials for energy related applications. Herein, a novel trifunctional Br/Co/N Co-doped and defect-enriched porous carbon framework (BrHT@CoNC) is designed, which shows excellent electrocatalytic activity for the oxygen reduction reaction (ORR) and oxygen evolution reaction (OER) as well as the hydrogen evolution reaction (HER). Introduction of extensive defects by heteroatom-doping is simply achieved by pyrolysis of the surfactant, dimethyldioctadecylammonium bromide (DODAB) modified ZIF-67. The BrHT@CoNC composite shows great potential as an economical catalyst/electrode for both rechargeable Zn–air batteries and overall water splitting devices. This work opens a new avenue toward the exploration of cost effective heteroatom doped catalysts for efficient integration of three or more functions into one freestanding electrode.