文献类型：期刊文献

英文题名：Lanthanum modified Fe3N/carbon foam as highly efficient electrode for zinc-air batteries

作者：Wang, Minghui Ji, Shan Wang, Hui Wang, Xuyun Linkov, Vladimir Ma, Xianguo Wang, Rongfang

第一作者：Wang, Minghui

通信作者：Wang, RF[1];Ji, S[2]

机构：[1]Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China;[2]Jiaxing Univ, Coll Biol, Chem Sci & Engn, Jiaxing 314001, Peoples R China;[3]Univ Western Cape, South African Inst Adv Mat Chem, ZA-7535 Cape Town, South Africa;[4]Guizhou Inst Technol, Sch Chem Engn, Guiyang 550003, Peoples R China

第一机构：Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China

通信机构：corresponding author), Qingdao Univ Sci & Technol, Coll Chem Engn, State Key Lab Base Ecochem Engn, Qingdao 266042, Peoples R China;corresponding author), Jiaxing Univ, Coll Biol, Chem Sci & Engn, Jiaxing 314001, Peoples R China.

年份：2023

卷号：948

外文期刊名：JOURNAL OF ALLOYS AND COMPOUNDS

收录：;EI(收录号：20231413847598);Scopus(收录号：2-s2.0-85151418909);WOS:【SCI-EXPANDED(收录号:WOS:000971152300001)】；

基金：Acknowledgments The authors would like to thank the Natural Science Foundation of Shandong Province of China (Nos. ZR2020MB024) and the Open Project Program of Guangdong Provincial Key Laboratory for Electronic Functional Materials and Devices, Huizhou University (No. EFMD2021001Z) for financially supporting this work.

语种：英文

外文关键词：Fe; N co-doped carbon; La modification; OER; ORR; Zinc-air battery

摘要：Efficient electrocatalysts for the oxygen reduction reaction (ORR) and the oxygen evolution reaction (OER) are of great importance for large-scale application of rechargeable zinc-air batteries. Iron-nitrogen-carbon materials are known for their excellent ORR catalytic activity, but it is their low OER performance that is responsible for poor charging operation causing slow market adoption of these energy storage devices. Herein, lanthanum (La) is applied to enhance OER electrocatalytic properties of iron-nitrogen-carbon ma-terials used as zinc-air battery electrodes. According to X-ray diffractometry, the presence of La alters the electronic structure of surrounding N and Fe elements, resulting in more negative N and positive Fe ions to appear on the surface and form Fe3N active species. Electrochemical analysis demonstrated enhanced bi-functional electrocatalytic performance of La-modified Fe3N carbon foam (La-Fe0.1:1/NFC) which total overpotential was among the lowest of previously reported metal-nitrogen-carbon materials. La-Fe0.1:1/NFC exhibited high power density and charge-discharge cycling stability in a real zinc-air battery cell.(c) 2023 Elsevier B.V. All rights reserved.