One-step preparation of eggplant-derived hierarchical porous graphitic biochar as efficient oxygen reduction catalyst in microbial fuel cells.

ABSTRACT: A one-step strategy for synthesizing eggplant-derived hierarchical porous graphitic biochar was proposed herein. Potassium trioxalatoferrate(iii) trihydrate (K₃[Fe(C₂O₄)₃]·3H₂O) was used to achieve synchronous carbonization and graphitization. Compared with the common two-step synthesis method, this one-step strategy is more efficient, economical, and green. The eggplant-derived biochar with K₃[Fe(C₂O₄)₃]·3H₂O activation prepared at 800 °C (referred to as EPGC-800-2) exhibited a hierarchical porous structure with a large specific surface area (1137 m² g^-1) and high graphitization degree. The EPGC-800-2 catalyst possessed good electrochemical performance in neu

SUBMITTER: Zha Z 

PROVIDER: S-EPMC8693568 | biostudies-literature | 2020 Dec

REPOSITORIES: biostudies-literature