Highly stable N-containing polymer-based Fe/Nx/C electrocatalyst for alkaline anion exchange membrane fuel cell applications

Autor:	Muhammad Rauf, Shi-Gang Sun, Yongliang Li, Zhi-You Zhou, Jingwen Wang, Lin Zhuang, Xiangzhong Ren, Waheed Iqbal, Sayed Ali Khan, Stephan Handschuh-Wang
Rok vydání:	2022
Předmět:	chemistry.chemical_compound Materials science Schiff base chemistry Carbonization General Materials Science Alkaline anion exchange membrane Electrochemistry Electrocatalyst Hydrogen peroxide Catalysis Nuclear chemistry Nanomaterials
Zdroj:	Progress in Natural Science: Materials International. 32:27-33
ISSN:	1002-0071
DOI:	10.1016/j.pnsc.2021.10.016
Popis:	A cost-effective electrocatalyst with high activity and stability was developed. The Fe-Nx and pyridinic-N active sites were embedded in nitrogen-doped mesoporous carbon nanomaterial by carbonization at high temperature. The electrocatalyst exhibited excellent electrochemical performance for the oxygen reduction reaction, with high onset potential and half-wave potential values (Eonset = 1.10 ​V and E1/2 ​= ​0.944 ​V) than 20 ​wt % Pt/C catalyst (1.04 and 0.910 ​V). The mass activity of the Schiff base network (SNW) based SNW-Fe/N/C@800° electrocatalyst (0.64 ​mA ​mg−1 @ 1 ​V) reached about half of the commercial Pt/C electrocatalyst (1.35 ​mA ​mg−1 @ 1 ​V). The electrocatalyst followed the 4-electron transfer mechanism due to very low hydrogen peroxide yield (H2O2 ​
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::4fe5297b6ae1bce627d75f7c18f0497f https://doi.org/10.1016/j.pnsc.2021.10.016 Zobrazit plný text záznamu Full Text from ScienceDirect