Developing hierarchically porous MnO_x/NC hybrid nanorods for oxygen reduction and evolution catalysis

Abstract

A facile and green synthesis gives hierarchically porous MnOx/nitrogen-doped-carbon nanorods for excellent bifunctional oxygen catalysis.

“Nano-garden cultivation” for electrocatalysis: controlled synthesis of Nature-inspired hierarchical nanostructures

“…33 Besides, costly additives and surfactants are oen used for geometry control, and large-scale material preparation is thus challenging. [34][35][36] Electrodeposition is a simple alternative approach of nanofabrication which can be dated back to 1987 in the pioneering work of Martin et al 37 Yet, a template is oen required for the synthesis and plating three-dimensional intricate structures at the nanometric scale remains problematic. Though the coprecipitation approach has recently allowed precise control of the formation of complex micrometer-scale shapes with amazing beauty, downsizing the shape to the nanometer scale is yet impossible.…”

Hierarchical sulfur and nitrogen co-doped carbon nanocages as efficient bifunctional oxygen electrocatalysts for rechargeable Zn-air battery

“…The bifunctional activity can be assessed by the variance of OER and ORR metrics, i.e., E = E j = 10 − E 1/2 . The optimal hSNCNC exhibits superior bifunctional activity with a low E value of 0.847 V, which locates at the top level for metal-free carbons (e.g., SHG [46] , CNS [59] , NSOG [62] , NGM [26] , NCHCs [63] , PCN -CFP [64] , and NG/CNT [65] ), and even outperformed some transitional metal-based bifunctional catalysts (e.g., Co, Ni and Mn [66][67][68][69][70] ) ( Fig. 3 e and Table S2).…”

Nitrogen‐Doped Hierarchical Porous Carbon Architecture Incorporated with Cobalt Nanoparticles and Carbon Nanotubes as Efficient Electrocatalyst for Oxygen Reduction Reaction

“…So far, a number of efforts have been devoted to explore various cost‐effective alternatives, such as spinel/perovskite oxides, heteroatom (N, S, P, etc.) doped carbon, carbon materials (porous carbon, carbon nanotube (CNT), carbon nanofiber, graphene/graphene oxide) supported with transition metal/oxides/nitrides/sulfides, and so on. Among them, transition metal and nitrogen codoped carbon (M, N–C) electrocatalysts have dramatically drawn attentions owing to their low‐cost and desirable catalytic activity.…”