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题名:
Promoted Multimetal Oxide Catalysts for the Generation of Hydrogen via Ammonia Decomposition
作者: Yan, H; Xu, YJ; Gu, YQ; Li, H; Wang, X; Jin, Z; Shi, S; Si, R; Jia, CJ; Yan, CH
刊名: JOURNAL OF PHYSICAL CHEMISTRY C
出版日期: 2016
卷号: 120, 期号:14, 页码:7685—7696
关键词: COX-FREE HYDROGEN ; FUEL-CELL APPLICATIONS ; METAL-OXIDE ; AEROSOL-SPRAY ; NI CATALYSTS ; STRUCTURE SENSITIVITY ; MESOPOROUS COMPOSITE ; RUTHENIUM CATALYSTS ; NI/SBA-15 CATALYST ; NH3 DECOMPOSITION
DOI: 10.1021/acs.jpcc.6b01595
通讯作者: Jin, Z ; Jia, CJ (reprint author), Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Key Lab Special Aggregated Mat, Jinan 250100, Peoples R China. ; Si, R (reprint author), Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China.
文章类型: 期刊文献
英文摘要: Mesoporous multimetal oxide microspheres (Ni-Ce-Al-O) with tuned and uniformly distributed composition are prepared through an aerosol-assisted self-assembly approach and further used as catalysts for ammonia decomposition. The as-prepared and spent materials are characterized by various techniques including ex situ/in situ X-ray diffraction (XRD), X-ray absorption fine structure (XAFS), scanning electron microscope (SEM)/transmission electron microscope (TEM), X-ray photoelectron spectroscopy (XPS), and N-2-adsorption. The tricomponent Ni-Ce-Al-catalysts show great superiority over pure NiO or bicomponent catalysts (Ni-Ce-O and Ni-Al-O) in both catalytic activity and durability. By using H-2-TPR combined with in situ XRD, we have identified metallic Ni-0 as the active crystalline phase and further confirmed the strong interaction between alumina and other components. This strong interaction helps suppress the growth of both metallic Ni-0 as active site and ceria as promoter under the harsh catalytic conditions (high temperature and reducing atmosphere) and thus improves the activity and stability simultaneously.
收录类别: SCI
语种: 英语
WOS记录号: WOS:000374431400028
ISSN号: 1932-7447
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.sinap.ac.cn/handle/331007/25816
Appears in Collections:中科院上海应用物理研究所2011-2017年_期刊论文

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Recommended Citation:
Yan, H,Xu, YJ,Gu, YQ,et al. Promoted Multimetal Oxide Catalysts for the Generation of Hydrogen via Ammonia Decomposition[J]. JOURNAL OF PHYSICAL CHEMISTRY C,2016-01-01,120(14):7685—7696.
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