文章基本信息

标题：Synthesis and characterization cobalt phosphate embedded with N doped carbon for water splitting ORR and OER
本地全文：下载
作者：Tansir Ahamad ; Mu Naushad ; Rashed Hassan Mousa 等
期刊名称：Journal of King Saud University - Science
印刷版ISSN：1018-3647
出版年度：2020
卷号：32
期号：6
页码：2826-2830
DOI：10.1016/j.jksus.2020.07.004
语种：English
出版社：Elsevier
摘要：Graphical abstractDisplay OmittedAbstractIn this study, we have fabricated the Co3(PO4)2nanoparticles and Co3(PO4)2-NC doped in N doped carbon nanocomposite. The fabricated nanocomposite was characterized successfully using several analytical techniques. The fabricated nanocomposite was used as electrocatalyst for water splitting, the oxygen evolution reaction (OER) and oxygen reduction reaction (ORR) in 1.0 M KOH solution. The fabricated nanocomposite shows highly porous nature with high surface area about to 372.32 m2/g. The catalytic results show, the lower limiting overpotential during the ORR (ηlim = 0.33 V) and more positive half-wave potential activity than that of commercial platinum on carbon (Pt/C) catalyst. Moreover, the Co3(PO4)2-NC exhibit excellent catalytic activity toward OER, with an overpotential of 350 mV at 10 mAcm2in 1.0 M KOH solution and a relatively low Tafel slope of 60.7 mV dec. In addition, the fabricated catalyst possesses excellent reusability, long term stability with fast electron transfer during the catalytic reactions. These outcomes revealed that the fabricated nanocomposites can be used as low-cost, efficient catalyst for water splitting ORR and OER in metal-air batteries and fuel cells.
关键词：Nanoparticles;Carbon materials;Water splitting;Co;3;(PO;4;);2;Nanocomposite