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Hydrogen production via catalytic decomposition of NH3 using promoted MgO-supported ruthenium catalysts
Hu, XC; Wang, WW; Si, R; Ma, C; Jia, CJ
2019
Source PublicationSCIENCE CHINA-CHEMISTRY
ISSN1674-7291
Volume62Issue:12Pages:1625-1633
Subtype期刊论文
AbstractCatalytic decomposition of NH3 to high purity hydrogen offers a promising strategy for fuel cells, but presents challenges for high hydrogen yields at comparatively low temperatures due to the lack of efficient catalysts. Here, we report the facile preparation of ultra-fine ruthenium (Ru) species dispersed on MgO, which show excellent activity and high temperature stability for NH3 decomposition reaction. The hydrogen yield of the prepared Ru/MgO catalysts reaches ca. 2,092 mmol H-2 g(Ru)(-1) min(-1) at 450 degrees C, far exceeding that of the previously reported most reactive Ru-based catalysts and the same chemical composition samples prepared by other approaches. Various characterization techniques containing X-ray absorption fine structure (XAFS), in-situ diffuse reflectance infrared Fourier transform spectroscopy (in-situ DRTFTS) and temperature-programmed reduction/desorption (TPR/TPD) were carried out to explore the structure-function relation of the prepared Ru/MgO catalysts. We found that the Ru species interact strongly with the MgO support, which can efficiently protect the Ru species and MgO support from agglomerating during NH3 decomposition test, maintaining the stability of the catalysts.
KeywordCOX-FREE HYDROGEN AMMONIA DECOMPOSITION ACTIVE CATALYST H-2 PRODUCTION GENERATION METAL RU NANOPARTICLES STORAGE OXIDES
DOI10.1007/s11426-019-9578-8
Indexed BySCI
Language英语
Citation statistics
Document Type期刊论文
Identifierhttp://ir.sinap.ac.cn/handle/331007/32087
Collection中科院上海应用物理研究所2011-2020年
Affiliation1.Shandong Univ, Sch Chem & Chem Engn, Key Lab Colloid & Interface Chem, Key Lab Special Aggregated Mat, Jinan 250100, Shandong, Peoples R China;
2.Chinese Acad Sci, Shanghai Inst Appl Phys, Shanghai Synchrotron Radiat Facil, Shanghai 201204, Peoples R China;
3.Hunan Univ, Coll Mat Sci & Engn, Changsha 410082, Hunan, Peoples R China
Recommended Citation
GB/T 7714
Hu, XC,Wang, WW,Si, R,et al. Hydrogen production via catalytic decomposition of NH3 using promoted MgO-supported ruthenium catalysts[J]. SCIENCE CHINA-CHEMISTRY,2019,62(12):1625-1633.
APA Hu, XC,Wang, WW,Si, R,Ma, C,&Jia, CJ.(2019).Hydrogen production via catalytic decomposition of NH3 using promoted MgO-supported ruthenium catalysts.SCIENCE CHINA-CHEMISTRY,62(12),1625-1633.
MLA Hu, XC,et al."Hydrogen production via catalytic decomposition of NH3 using promoted MgO-supported ruthenium catalysts".SCIENCE CHINA-CHEMISTRY 62.12(2019):1625-1633.
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