Open AccessSynthesis and electrochemical properties of Fe2O3@C composite
Author(s) -
Bui Thi Hang
Publication year - 2018
Publication title -
tạp chí khoa học đại học quốc gia hà nội: toán - lý (vnu journal of science: mathematics - physics)
Language(s) - English
Resource type - Journals
eISSN - 2615-9341
pISSN - 2588-1124
DOI - 10.25073/2588-1124/vnumap.4307
Subject(s) - scanning electron microscope , cyclic voltammetry , electrochemistry , hydrothermal circulation , electrode , carbon black , materials science , hydrothermal synthesis , amorphous solid , carbon fibers , redox , composite number , chemical engineering , analytical chemistry (journal) , chemistry , crystallography , metallurgy , composite material , organic chemistry , natural rubber , engineering
Fe2O3@C material was prepared by one-step hydrothermal method for use as a negative electrode in an iron-air battery. The structure of Fe2O3@C was determined by X-ray diffraction (XRD) measurement while their morphology was observed by scanning electron microscopy (SEM). The electrochemical properties of the Fe2O3@C electrode in alkaline solution were investigated using cyclic voltammetry (CV) measurement. The results showed that Fe2O3@C material with α-Fe2O3 structure and amorphous carbon were successfully synthesized by one-step hydrothermal method. CV measurements indicate that the redox reaction rate of the Fe2O3@C electrode is higher than that of the Fe2O3@AB electrode using commercial Fe2O3 and AB (Acetylene Black Carbon).