New insights into the support morphology-dependent ammonia synthesis activity of Ru/CeO2 catalysts | |
Department | OSSO国家重点实验室 |
Ma ZW(马占伟)1,2; Zhao SL(赵胜利)1,2; Pei XP(裴晓平)1,2; Xiong XM(熊绪茂)1; Hu B(胡斌)1; Hu B(胡斌) | |
2017 | |
Source Publication | Catalysis Science and Technology |
ISSN | 2044-4753 |
Volume | 7Issue:1Pages:191-199 |
Abstract | Three ceria nanocrystals with different morphologies (nanocubes, nanorods, and nanoparticles) were synthesized and used as supports to evaluate the support morphology-dependent ammonia synthesis activity in the structure-sensitive ammonia synthesis reaction. The Ru/r-CeO2 catalyst shows a higher catalytic reaction rate (3830 μmol g−1 h) than that of Ru/c-CeO2 (1289 μmol g−1 h) and Ru/p-CeO2 (529 μmol g−1 h) under the reaction conditions of 400 °C, 1 MPa, and 60 mL min−1. In addition, promoters (Cs, K, and Ba) can effectively enhance the catalytic activity of the catalysts such as 2Cs–Ru/r-CeO2 (14266 μmol g−1 h) and 2K–Ru/r-CeO2 (11227 μmol g−1 h). The effect of the morphology of the CeO2 support on the metal–support interaction and catalytic performance of the Ru/CeO2 catalysts can be correlated to the exposed crystal planes and surface composition/electronic structure of the CeO2 support with diverse morphologies. |
Subject Area | 物理化学与绿色催化 |
DOI | 10.1039/c6cy02089e |
Funding Organization | the National Natural Science Foundation of China (Grant No. 21403257) |
Indexed By | SCI |
If | 5.773 |
Language | 英语 |
Funding Project | 羰基金属功能材料课题组 |
compositor | 第一作者单位 |
Citation statistics | |
Document Type | 期刊论文 |
Identifier | http://ir.licp.cn/handle/362003/21298 |
Collection | 羰基合成与选择氧化国家重点实验室(OSSO) |
Corresponding Author | Hu B(胡斌) |
Affiliation | 1.Chinese Acad Sci, Lanzhou Inst Chem Phys, State Key Lab Oxo Synth & Select Oxidat, Lanzhou 730000, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
Recommended Citation GB/T 7714 | Ma ZW,Zhao SL,Pei XP,et al. New insights into the support morphology-dependent ammonia synthesis activity of Ru/CeO2 catalysts[J]. Catalysis Science and Technology,2017,7(1):191-199. |
APA | Ma ZW,Zhao SL,Pei XP,Xiong XM,Hu B,&胡斌.(2017).New insights into the support morphology-dependent ammonia synthesis activity of Ru/CeO2 catalysts.Catalysis Science and Technology,7(1),191-199. |
MLA | Ma ZW,et al."New insights into the support morphology-dependent ammonia synthesis activity of Ru/CeO2 catalysts".Catalysis Science and Technology 7.1(2017):191-199. |
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