期刊论文

Lei, Yongpeng;Wang, Yaobing

英文

科学通报(英文版)

2095-9273

2018

63

9

548-555

10.1016/j.scib.2018.04.003

The SEM image in Fig. 1a shows that Co-NDC with necklace-like network is composed of disordered and rough carbon nanoparticles with a diameter ranging from 25 to 40 nm. The black Co nanoparticles marked with red circles were observed in the TEM image (Fig. 1b). The elemental mapping images in Fig. 1c further confirm the high dispersion of Co N, O and C species. In addition, the microstructure was further studied by the HRTEM measurement (Fig. 1d). The lattice fringes of 0.205 and 0.36 nm are

本校为第一机构

Simple synthesis of multifunctional electrocatalysts with plentiful active sites from earth-abundant materials is especially fascinating. Here, N-doped defective carbon with trace Co (1.5 wt%) was prepared via a scalable one pot solid pyrolysis process. The sample exhibits efficient bifunctional OER/ORR activity in alkaline, mainly ascribed to the unique micro-mesoporous structure (1–3 nm), high population of graphitic-N doping (up to 49.0%), abundant defects and the encapsulated Co nanoparticles with graphitized carbon. The according recharge...