One-dimensional conductive metal–organic framework nanorods: a highly selective electrocatalyst for the oxygen reduction to hydrogen peroxide. Issue 36 (8th September 2021)

• Record Type: Journal Article
• Authors: Deng, Zhiqin; Ma, Chaoqun; Yan, Shihai; Dong, Kai; Liu, Qian; Luo, Yonglan; Liu, Yang; Du, Juan; Sun, Xuping; Zheng, Baozhan
• Is Part Of: Journal of materials chemistry. Volume 9:Issue 36(2021)
• Page Start: 20345
• Page End: 20349
• Publication Date: 2021-09-08
• Subjects: Materials -- Research -- Periodicals; Chemistry, Analytic -- Periodicals; Environmental sciences -- Research -- Periodicals; 543.0284
• DOI: 10.1039/d1ta05281k
• Languages: English
• ISSNs: 2050-7488

Abstract

Abstract : Mn–TCNQ acts as an efficient electrocatalyst to boost 2e − oxygen reduction reaction, capable of achieving an outstanding H2 O2 selectivity over 98% and a high H2 O2 yield of 142.6 ppm h −1 in an alkaline medium. Abstract : Exploring inexpensive, highly selective, and stable noble-metal-free catalysts for two electronic oxygen reduction reactions (2e − ORRs) continues to be an exceedingly active field for the yielding of hydrogen peroxide. Herein, one-dimensional manganese-tetracyanoquinodimethane (Mn–TCNQ) nanorods were synthesized via a simple solution–impregnation and cation exchange method, and delivered excellent electrocatalytic activity for 2e − ORR, with a considerable H2 O2 yield of 142.6 ppm h −1 and an outstanding H2 O2 selectivity of over 98% in 0.1 M KOH. Density functional theory results revealed that *OOH can be efficiently absorbed on the Mn sites of Mn–TCNQ nanorods, and the succeeding ORR occurred through a 2e − pathway.