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Enhanced Nitrogen Photofixation over LaFeO3via Acid Treatment
Sun, Xiang1,2; Jiang, Dong1; Zhang, Ling1; Sun, Songmei1; Wang, Wenzhong1
2017
发表期刊ACS Sustainable Chemistry and Engineering
卷号5期号:11页码:9965-9971
摘要The N2photofixation presents a green and eco-friendly ammonia synthesis approach. However, present strategies for light-induced N2activation suffer from low efficiency and instability, largely hindering the development of this technology. Herein, we report the LaFeO3co-optimization of N2activation as well as subsequent photoinduced protonation with the further phosphate acid treatment. Efficient ammonia evolution rate reached 250 μmol g-1h-1over LaFeO3under simulated sunlight with appropriate acid treatment. The enhancement of phosphate modified samples was mainly attributed to the "pull and push" effect. The hydrogen bonding centers and transition metals (Fe) served as two separation active sites, which improves the adsorption and activation of dinitrogen. In addition, the facilitation of H2O dissociation was also achieved after phosphate modification. These results suggested an alternative N2photofixation strategy of traditional organic and precious metallic additives for efficient ammonia synthesis. © 2017 American Chemical Society.
DOI10.1021/acssuschemeng.7b01912
EI入藏号20174604394989
EI主题词Iron compounds
EI分类号531 Metallurgy and Metallography - 741.1 Light/Optics - 801.4 Physical Chemistry - 804 Chemical Products Generally - 804.2 Inorganic Compounds
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文献类型期刊论文
条目标识符http://ir.sic.ac.cn/handle/331005/25461
专题中国科学院上海硅酸盐研究所
作者单位1.State Key Laboratory of High Performance Ceramics and Superfine Microstructure, Shanghai Institute of Ceramics, Chinese Academy of Sciences, 1295 Dingxi Road, Shanghai; 200050, China;
2.University of Chinese Academy of Sciences, Beijing; 100049, China
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GB/T 7714
Sun, Xiang,Jiang, Dong,Zhang, Ling,et al. Enhanced Nitrogen Photofixation over LaFeO3via Acid Treatment[J]. ACS Sustainable Chemistry and Engineering,2017,5(11):9965-9971.
APA Sun, Xiang,Jiang, Dong,Zhang, Ling,Sun, Songmei,&Wang, Wenzhong.(2017).Enhanced Nitrogen Photofixation over LaFeO3via Acid Treatment.ACS Sustainable Chemistry and Engineering,5(11),9965-9971.
MLA Sun, Xiang,et al."Enhanced Nitrogen Photofixation over LaFeO3via Acid Treatment".ACS Sustainable Chemistry and Engineering 5.11(2017):9965-9971.
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