Earth abundant spinel for hydrogen production in a chemical looping scheme at 550℃
Earth abundant spinel for hydrogen production in a chemical looping scheme at 550℃作者机构：Key Laboratory of Energy Thermal Conversion and Control of Ministry of EducationSchool of Energy and EnvironmentSoutheast UniversityNanjing210096China
出 版 物：《Green Energy & Environment》 (绿色能源与环境（英文版）)
年 卷 期：2021年第6卷第5期
页 面：780-789页
核心收录：
学科分类：081702[工学-化学工艺] 08[工学] 0817[工学-化学工程与技术]
基 金：The authors gratefully acknowledge the National Natural Science Foundation of China(Grant No.51906041) the Natural Science Foundation of Jiangsu Province(Grant NO.BK20190360) the National Science Foundation for Distinguished Young Scholars of China(Grant No.51525601)
主 题：Chemical looping Mid-temperature Earth-abundant metals Spinel Hydrogen production
摘 要：Operating chemical looping process at mid-temperatures(550–750℃)presents exciting potential for the stable production of ***,the reactivity of oxygen carriers is compromised by the detrimental effect of the relatively low temperatures on the redox *** the reactivity at mid-temperature can be improved by the addition of noble metals,the high cost of these noble metal containing materials significantly hindered their scalable *** the current work,we propose to incorporate earth-abundant metals into the ironbased spinel for hydrogen production in a chemical looping scheme at ***0.2Co0.4Fe2.4O4 shows a high hydrogen production performance at the average rate of~0.62 mmol g^(-1) min^(-1) and a hydrogen yield of~9.29 mmol g^(-1) with satisfactory stability over 20 cycles at 550℃.The mechanism studies manifest that the enhanced hydrogen production performance is a result of the improved oxygen-ion conductivity to enhance reduction reaction and high reactivity of reduced samples with *** performance of the oxygen carriers in this work is comparable to those noble-metal containing materials,enabling their potential for industrial applications.
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