Premium
Biomass carbon dual‐doped with iron and nitrogen for high‐performance electrocatalyst in water splitting
Author(s) -
Yang Zhou,
Yan Chunfu,
Xiang Meng,
Shi Yan,
Ding Mingqing,
Hui Jia
Publication year - 2021
Publication title -
international journal of energy research
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.808
H-Index - 95
eISSN - 1099-114X
pISSN - 0363-907X
DOI - 10.1002/er.6381
Subject(s) - tafel equation , overpotential , electrocatalyst , water splitting , hydrogen production , carbon fibers , oxygen evolution , biomass (ecology) , chemistry , materials science , electrolysis of water , chemical engineering , hydrogen , inorganic chemistry , catalysis , electrolysis , electrochemistry , electrode , composite material , organic chemistry , geology , oceanography , composite number , photocatalysis , engineering , electrolyte
Summary Energy crisis has become an urgent problem in the world. Hydrogen is a continuous and clean energy, but traditional electrocatalytic materials for water splitting have the shortcomings including high cost and low hydrogen production efficiency. Herein, we prepare a biomass carbon‐based electrocatalyst doped with iron and nitrogen. The overpotential of so‐obtained CA (abbreviation of “carbon from amaranth”) @Fe(1:3)‐800 is only 265 mV at 10 mA cm −2 for oxygen evolution reaction (OER), as well as the Tafel slope is 76.7 mV dec −1 , which are much superior to the results of CA‐800 (the overpotential is 514 mV and the Tafel slope is 160.2 mV dec −1 ). It shows the positive influences of dual‐doping with iron and nitrogen in biomass carbon. Our work opens up a low‐cost and green avenue for fabricating high‐performance electrocatalyst in hydrogen production field.